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| feb., 2008 v0.11p F75367 F75367 datasheet ? 1 o c temperature sensor with i2c-sst bridge release date: february, 2008 revision: v0.11p
feb., 2008 v0.11p F75367 F75367 datasheet revision history version date page revision history v0.10p 2007/12/20 - preliminary version. v0.11p 2008/2/29 - add register and function descriptions please note that all data and specifications are subject to change without notice. all the trade marks of products and companies mentioned in this data sheet belong to their respective owners. life support applications these products are not designed for use in life support app liances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. customers using or selling these products for use in such applications do so at their own risk and agree to fu lly indemnify fintek for any damages resulting from such improper use or sales. 3 feb.. , 2008 v0.11p F75367 table of contents 1. general description ............................................................................................................ ..........................................5 2. features ....................................................................................................................... .............................................................5 3. key specif ications ............................................................................................................. .................................................5 4. pin configuration.............................................................................................................. .................................................6 5. pin description................................................................................................................ ......................................................6 5.1. p ower p in ............................................................................................................................... ......................................6 5.2. m onitoring i tems and f an s peed c ontrol .............................................................................................................6 6. function description ........................................................................................................... ............................................7 6.1 a ccess i nterface ............................................................................................................................... .............................7 6.2 t emperature m onitoring ............................................................................................................................... ...............8 6.3 b eta c ompensation ............................................................................................................................... ..........................9 6.4 sst m aster ............................................................................................................................... .....................................10 6.5 pcb l ayout g uide ............................................................................................................................... .........................10 7. register de scription ........................................................................................................... ...........................................11 7.1. c onfiguration r egister ? i ndex 01 h ....................................................................................................................11 7.2. c onfiguration r egister ? i ndex 0 ah ....................................................................................................................12 7.3. e xternal d evice a ddress r egister ? i ndex 40 h ~ 45 h .......................................................................................12 7.4. e xternal d evice i ndex r egister ? i ndex 48 h ~ 4 dh ............................................................................................12 7.5. e xternal d evice e nable r egister ? i ndex 50 h ...................................................................................................12 7.6. e xternal d evice m onitoring c ycle s elect r egister 1 ? i ndex 52 h ...............................................................12 7.7. e xternal d evice m onitoring c ycle s elect r egister 2 ? i ndex 53 h ...............................................................12 7.8. sst d evice r eset r egister ? i ndex 55 h ................................................................................................................12 7.9. t emperature i nterrupt s tatus r egister ? i ndex 61 h (i f dev_bank_en is 0) .............................................13 7.10. t emperature i nterrupt s tatus r egister ? i ndex 61 h (i f dev_bank_en is 1) .............................................13 7.11. t emperature r eal t ime s tatus r egister ? i ndex 62 h (i f dev_bank_en is 0) .............................................14 7.12. t emperature r eal t ime s tatus r egister ? i ndex 62 h (i f dev_bank_en is 1) .............................................14 7.13. t emperature r eal t ime s tatus r egister ? i ndex 65 h ........................................................................................15 7.14. t emperature o ffset bank select r egister ? i ndex 67 h ....................................................................................15 7.15. t emperature o ffset r egister ? i ndex 68 h ..........................................................................................................15 7.16. diode open s tatus r egister ? i ndex 6f h (i f dev_bank_en is 0)..............................................................15 4 feb.. , 2008 v0.11p F75367 7.17. diode open s tatus r egister ? i ndex 6f h (i f dev_bank_en is 1)..............................................................15 7.18. t emperature r egister -- i ndex 70 h ~ 83 h ..............................................................................................................16 7.19. t emperature f ilter s elect r egister -- i ndex 8e h ...............................................................................................17 8. electrical char acteristic...................................................................................................... ..................................18 8.1 a bsolute m aximum r at i n g s ............................................................................................................................... .............18 8.2 dc c haracteristics ............................................................................................................................... ...........................18 8.3 ac c haracteristics ............................................................................................................................... ...........................20 9. ordering information ........................................................................................................... ........................................20 10. package dimensions............................................................................................................. .........................................21 5 feb.. , 2008 v0.11p F75367 1. general description the F75367 is a temperature sensor ic with ? compensation and supports i2c to sst master bridge function. this chip provides 2-remote temperatur e sensor, 1-local temperature sensor and 6-remote temperature input by sst master. the local temper ature sensor can be applied to sense environment temperature without any component. the 2 remote temperature sensors can be performed by cpu thermal diode or transistor 2n3906. the f753 67 also can support new generational 45nm cpu temperature sensing by varied ? of cpu. besides 3 sets temperature sensors, the F75367 also can read 6 temperature inputs from other devices by sst interfaces. the host can read the extra 6 sets temperature by i2c interface (i2c to sst master bridge). totally the F75367 can support 9 temperature outputs for host fan control by i2c. the F75367 is in the green package of 8-pin sop and powered by 3.3v. 2. features ? provide 1 on-chip local and 2 remote temperature sensors z accuracy 1 o c from +60 o c to +100 o c on remote channel z accuracy 3 o c from +60 o c to +100 o c on local channel ? support 6 temperature inputs from ex ternal sensor devices (ex: f75395) ? beta-compensation support for new generational cpu. ? sst master interfaces for external devices? temperature sensing ? i2c to sst master bridge ? v cc 3v operation and 8 sop green package ? i2c slave address: a6 a5 a4 a3 a2 a1 a0 F75367 1 0 0 1 1 1 0 3. key specifications ? supply voltage 3.0v to 3.6v ? operating supply current typ. ? measured range -40 ~ 127 o c ? remote diode temperature accuracy 1 o c from +60 o c to +100 o c 6 feb.. , 2008 v0.11p F75367 ? local temperature accuracy 3 o c from +60 o c to +100 o c 4. pin configuration , 5. pin description i lv /o d8-s1 - low level bi-directional pin (vih ? 0.9v, vil ? 0.6v.). output with 8ma drive and 1ma sink capability. ood 12 - can select to od or out by register, with 12 ma source-sink capability. aout - output pin(analog). od 12 od 12-5v - open-drain output pin with 12 ma sink capability. open-drain output pin with 12 ma sink capability, 5v tolerance. in ts5v ain - ttl level input pin and schmitt trigger, 5v tolerance. - input pin(analog). p - power. 5.1. power pin pin no. pin name type description 8 vcc p 3.3v power supply voltage input 5 gnd p gnd 5.2. monitoring items and fan speed control pin no. pin name type pwr description 1 sst_m i lv /o d8-s1 intel sst master hardware monitor interface 2 d1+ aout ain positive connection to remote temperature sensor 7 feb.. , 2008 v0.11p F75367 3 d- agnd negative connection to remote temperature sensor 4 d2+ aout ain positive connection to remote temperature sensor 6 sclk_s in ts5v slave serial bus clock 7 sdata_s in ts5v /od 12 slave serial bus data 6. function description the F75367 is a temperature sensor ic with ? compensation and supports i2c to sst master bridge function. this chip provides 2-remote temperature sensors, 1-local temperature sensor and 6-external remote temperature input (external devices) by sst master. the local temperature sensor can be applied to sense environment temperature without any component. the 2 remote temperature sensors can be performed by cpu thermal diode or trans istor 2n3906. the F75367 supports new generational 45nm cpu temperature sensing by varied ? of cpu. besides 3 temperature sensors, the F75367 also can read 6 temperature inputs from ot her devices by sst interfaces. t he host can read the extra 6 sets temperature by i2c interface (i2c to sst master bridge). totally the F75367 can support 9 temperature outputs for host fan control by i2c. 6.1 access interface the F75367 can be connected to a compatible 2-wire serial system management bus as a slave device under the control of the master dev ice, using two device terminals scl and sda. the F75367 supports i2c protocol of, ?write byte?, ?read byte?, both wi th or without packet erro r checking (pec) which is calculated using crc-8. for detail information about pec, please check i2c specification. F75367 also supports alert response address (ara) protocol. the operation of the protocol is described with details in the following sections. (a) i2c write to internal address regi ster followed by the data byte 8 feb.. , 2008 v0.11p F75367 0 start by master 0 1 011 00 d7 d6 d5 d4 d3 d2 d1 d0 ack by 395 r/w ack by 395 scl sda d7 d6 d5 d4 d3 d2 d1 d0 stop by master scl sda (continued) 780 78 0 78 frame 2 internal index register byte (continued) frame 3 data byte frame 1 serial bus address byte figure 1. serial bus write to internal address register followed by the data byte (b) serial bus write to internal address register only 0 start by master 0 1 011 10 d7 d6 d5 d4 d3 d2 d1 d0 ack by 395 r/w ack by 395 scl sda 780 78 0 frame 2 internal index register byte frame 1 serial bus address byte figure 2. serial bus write to internal address register only stop by master (c) serial bus read from a register with the intern al address register prefer to desired location 0 start by master 0 1 011 10 d7 d6 d5 d4 d3 d2 d1 d0 ack by master r/w ack by 395 scl sda 780 78 0 frame 2 internal index register byte frame 1 serial bus address byte figure 3. serial bus read from internal address register stop by master 6.2 temperature monitoring the F75367 monitors local and 2 remote temperature sensors. both can be measured from 0c to 140.875c. the temperature format is as the following table: temperature ( high byte ) digital output temperature ( low byte ) digital output 0c 0000 0000 0c 000 0 0000 1c 0000 0001 0.125c 001 0 0000 25c 0001 1001 0.250c 010 0 0000 9 feb.. , 2008 v0.11p F75367 50c 0011 0010 0.375c 011 0 0000 75c 0100 1011 0.500c 100 0 0000 90c 0101 1010 0.625c 101 0 0000 100c 0110 0100 0.750c 110 0 0000 140c 1000 1100 0.875c 111 0 0000 remote-sensor transistor manufacturers manufacturer model number panasonic 2sb0709 2n3906 philips pmbt3906 6.3 beta compensation the F75367 is configured to detect the temperature of diodes (e.g. 2n3906) or cpu thermal diodes. the diode can be connected in different way as below figure. the basic of the temperature sensor fo llows mathematical formula as below: 2 2 2 1 1 1 2 1 1 1 ln ln ic ic q kt ie ie q kt v be ? ? ? ? ? ? ? ? + ? ? ? ? ? ? ? ? + = = ? the F75367 measures temperature from the thermal diodes by the basic. in traditional case, the F75367 outputs dual currents to a thermal diode. then the F75367 calculates the absolute temperature by ? vbe. for discrete transistor (i.e. 2n3906), the beta is no rmally very high such that the percent change in beta is very small. for example, 15% variation in bet a for two forced ie currents and the beta is 50 would contribute about 0.32 j error per 100 j . for substrate pnp transistor (i.e. cpu), the beta is very small such that the proportional beta variation will very high, and it will cause large error in temperature d+ d- d+ d- substrate pnp transistor i.e. cpu discrete pnp transistor i.e. 2n3906 10 feb.. , 2008 v0.11p F75367 measurement. for example, 15% variation in beta for two forced ie currents and the beta is 0.5 would contribute about 11.12 j error per 100 j . in order to solve the second issue, the F75367 prov ides a beta compensation solution for accurate temperature sensing. the F75367 can support the beta range over 0.2 for beta compensation. in this new method, the F75367 will provide two ie current s, and feedback two ib currents. the F75367 will auto-adjust ie (ie1 and ie2) curr ent and feedback ib (ib1 and ib2) promptly for getting proper ic proportion (ic1/ ic2), then calculates the accurate temperature. this algorithm of beta compensation is suitable for substrate transistor or new generational cpu (i.e. 45nm cpu) because small beta and high proportional beta variation. 6.4 sst master F75367 support 6 external device inputs for temperat ure reading by sst and pass to host by i2c. it?s really a sst to i2c bridge ic for some specific sst temperature sensors? application. user can ready sst temperature sensor by F75367 bridge function. for instance, user would like to read an external sst temperature sensor by F75367. she could follow below list to read the sst device temperature. if the address/index of sst device is 49h/00h .before you read the te mperature from sst device. you should do below list: 1. write register 49h to register 40h (define external device0 address) 2. write 00h to register 48h (define external device0 index) 3. write ?1? to register 50h bit 0 (enable external device0) 4. read register 78h to get the temperature value of sst device totally the F75367 can support 6 external device inputs by sst master. about the detail setting of register, please refer the register description. 6.5 pcb layout guide pcb can be electrically noisy environments, and the F75367 is measuring very small voltage from the remote sensor, so care must be taken to minimize noise which is occurred at the sensor inputs. the following guideline should be taken to reduce the me asurement error of the temperature sensors: place the F75367 as close as practical to the remote sensing diode. in noisy environments, such as a computer main-board, the distance can be 4 to 8 inches . (typ). this length can be increased if the worst noise sources are avoided. noise sources generally include clock generators, crts, memory buses and pci/isa bus etc. route the d+ and d- tracks close together, in parall el, with grounded guard tracks on each side. provide 11 feb.. , 2008 v0.11p F75367 a ground plane under the tracks if possible. do not r oute d+ & d- lines next to the deflection coil of the crt. and also don?t route the trace across fast digi tal signals which can easily induce bigger error. gnd gnd dxp 10mils 10mils minimum 10mils dxn 10mils use wide tracks to minimize inductance and redu ce noise pickup. 10 mil track minimum width and spacing is recommended. try to minimize the number of copper/solder joints, which can cause thermocouple effects. where copper/solder joints are used, make sure that t hey are in both the d+ and d- path and at the same temperature. thermocouple effects should not be a major problem as 1 corresponds to about 200v j . it means that a copper-solder thermocouple exhibits 3v/ j , and takes about 200v of the voltage error at d+ & d- to cause a 1 j measurement error. adding a few thermocouples causes a negligible error. place a 0.1f bypass capacitor close to the vcc pin. in very noisy environm ents, place an external 2200pf input filter capacitors across d+, d- close to the F75367. if the distance to the remote sensor is more than 8 inches, the use of twisted pair cable is recommended. it will work up to around 6 to 12 feet. because the measurement technique uses switched current sources, excessi ve cable and/or filter capacitance will affect the measurement accuracy. when using long cables, the filter capacitor may be reduced or removed. cable resistance can also induce errors. 1 ? series resistance introduces about 0.5 er j ror. 7. register description 7.1. configuration register ? index 01h bit name r/w default description 7-1 - r/w 0 reserved 0 t_start r/w 1 set one to enable startup of temperat ure monitoring operations; a zero puts the part in standby mode. 12 feb.. , 2008 v0.11p F75367 7.2. configuration register ? index 0ah bit name r/w default description 7 - - 0 reserved 6 sst_3v_en r / w 0 enable sst master to output 3 volt signal 5 - r/w 1 reserved 4-2 - r/w 0 reserved 1-0 - r 0 reserved 7.3. external device address register ? index 40h ~ 45h bit name r/w default description 7-0 dev_addr r/w 0 device address of external device0 ~ device5 setting. 7.4. external device index register ? index 48h ~ 4dh bit name r/w default description 7-0 dev_index r/w 0 device index of external device0 ~ device5. 7.5. external device enable register ? index 50h bit name r/w default description 7-6 - r/w 0 reserved 5-0 dev_en r/w 0 external device enable. (bit mask) 7.6. external device monitori ng cycle select register 1 ? index 52h bit name r/w default description 7-6 cyc_sel3 r/w 2?b11 5-4 cyc_sel2 r/w 2?b11 3-2 cyc_sel1 r/w 2?b11 1-0 cyc_sel0 r/w 2?b11 select device monitoring cycle: 2?b11: 8hz 2?b10: 4hz 2?b01: 2hz 2?b00: 1hz 7.7. external device monitori ng cycle select register 2 ? index 53h bit name r/w default description 7-6 reserved r 0 5-4 reserved r/w 2?b11 3-2 cyc_sel5 r/w 2?b11 1-0 cyc_sel4 r/w 2?b11 select device monitoring cycle: 2?b11: 8hz 2?b10: 4hz 2?b01: 2hz 2?b00: 1hz 7.8. sst device reset register ? index 55h bit name r/w default description 7 - r/w 0 reserved 6 reset_sst_en r/w 0 set this bit to reset sst device, this bit will be cleared after reset 13 feb.. , 2008 v0.11p F75367 5 - r/w 0 reserved 4-2 reset_dev_sel r/w 0 select which sst device to be reset 1 - r/w 0 reserved 0 - r/w 0 reserved 7.9. temperature interrupt status register ? index 61h (if dev_bank_en is 0) bit name r/w default description 7 dev_t_exc_sts r 0 a one indicates at least one of temp3~temp8 temperature sensor has exceeded high limit or below the ?high limit ?hysteresis? limit. write 1 to clear this bit, write 0 will be ignored. 6-3 - r 0 reserved 2 t2_exc _sts r/w 0 a one indicates temp2 temperature sensor has exceeded high limit or below the ?high limit ?hysteresis? limit. write 1 to clear this bit, write 0 will be ignored. 1 t1_exc _sts r/w 0 a one indicates temp1 temperature sensor has exceeded high limit or below the ?high limit ?hysteresis? limit. write 1 to clear this bit, write 0 will be ignored. 0 local_exc _sts r/w 0 a one indicates temperature sensor (l ocal temperature) has exceeded the high limit or below the ?high limit ?hysteresis? limit. write 1 to clear this bit, write 0 will be ignored. 7.10. temperature interrupt status register ? index 61h (if dev_bank_en is 1) bit name r/w default description 7-6 - r 0 reserved 5 t8_exc _sts r/w 0 a one indicates temp8 temperature sensor has exceeded high limit or below the ?high limit ?hysteresis? limit. write 1 to clear this bit, write 0 will be ignored. 4 t7_exc _sts r/w 0 a one indicates temp7 temperature sensor has exceeded high limit or below the ?high limit ?hysteresis? limit. write 1 to clear this bit, write 0 will be ignored. 3 t6_exc _sts r/w 0 a one indicates temp6 temperature sensor has exceeded high limit or below the ?high limit ?hysteresis? limit. write 1 to clear this bit, write 0 will be ignored. 2 t5_exc _sts r/w 0 a one indicates temp5 temperature sensor has exceeded high limit or below the ?high limit ?hysteresis? limit. write 1 to clear this bit, write 0 will be ignored. 14 feb.. , 2008 v0.11p F75367 1 t4_exc _sts r/w 0 a one indicates temp4 temperature sensor has exceeded high limit or below the ?high limit ?hysteresis? limit. write 1 to clear this bit, write 0 will be ignored. 0 t3_exc _sts r/w 0 a one indicates temp3 temperature sensor has exceeded high limit or below the ?high limit ?hysteresis? limit. write 1 to clear this bit, write 0 will be ignored. 7.11. temperature real time status register ? index 62h (if dev_bank_en is 0) bit name r/w default description 7 dev_t_exc r 0 set when one of temp3~temp8 exceeds the high limit. clear when the temp3~temp8 is below the ?high lim it ?hysteresis? temperature. 6-3 - r 0 reserved 2 t2_exc r 0 set when the temp2 exceeds the high limit. clear when the temp2 is below the ?high limit ?hysteresis? temperature. 1 t1_exc r 0 set when the temp1 exceeds the high limit. clear when the temp1 is below the ?high limit ?hysteresis? temperature. 0 local_exc r 0 set when the local temperature exceeds the high limit. clear when the local temperature is below the ?hig h limit ?hysteresis? temperature. 7.12. temperature real time status register ? index 62h (if dev_bank_en is 1) bit name r/w default description 7-6 - r 0 reserved 5 t8_exc r 0 set when the temp8 exceeds the high limit. clear when the temp8 is below the ?high limit ?hysteresis? temperature. 4 t7_exc r 0 set when the temp7 exceeds the high limit. clear when the temp7 is below the ?high limit ?hysteresis? temperature. 3 t6_exc r 0 set when the temp6 exceeds the high limit. clear when the temp6 is below the ?high limit ?hysteresis? temperature. 2 t5_exc r 0 set when the temp5 exceeds the high limit. clear when the temp5 is below the ?high limit ?hysteresis? temperature. 1 t4_exc r 0 set when the temp4 exceeds the high limit. clear when the temp4 is below the ?high limit ?hysteresis? temperature. 0 t3_exc r 0 set when the temp3 exceeds the high limit. clear when the temp3 is below the ?high limit ?hysteresis? temperature. 15 feb.. , 2008 v0.11p F75367 7.13. temperature real time status register ? index 65h bit name r/w default description 7-1 - r 0 reserved 0 dev_bank_en r/w 0 set 1 to choose external device bank 7.14. temperature offset bank select register ? index 67h bit name r/w default description 7-2 reserved ro 0 -- 1-0 offset_sel r/w 0 this register is for device F75367 us e, not for external device used. 0: cr68 is local temperature offset. 1: cr68 is temperature 1 offset. 2: cr68 is temperature 2 offset. 7.15. temperature offset register ? index 68h bit name r/w default description 7 - ro 0 reserved 6-0 t_offset r/w 0 temperature offset register. the real temperature value will be added by this offset and then will be put into temperature reading (index 70h~75h). the offset ranges from -64oc to +63oc. 7?b011_1111: mean temperature + 63; 7?b000_0001: mean temperature + 1; 7?b000_0000: mean temperature + 0; 7?b111_1111: mean temperature - 1; 7?b100_0000: mean temperature - 64; 7.16. diode open status register ? index 6fh (if dev_bank_en is 0) bit name r/w default description 7-4 - r 0 reserved 4 dev_open r 0 one of the diode of external device0-5 (t3~t8) is open or short 3 - r 0 reserved 2 t2_diode_open r 0h external diode 2 is open or short 1 t1_diode_open r 0h external diode 1 is open or short 0 t0_diode_open r 0h internal diode 0 is open or short 7.17. diode open status register ? index 6fh (if dev_bank_en is 1) bit name r/w default description 16 feb.. , 2008 v0.11p F75367 7-6 - r 0 reserved 5 t8_diode_open r 0 the diode of t8 (external device5) is open or short 4 t7_diode_open r 0 the diode of t7 (external device4) is open or short 3 t6_diode_open r 0 the diode of t6 (external device3) is open or short 2 t5_diode_open r 0 the diode of t5 (external device2) is open or short 1 t4_diode_open r 0 the diode of t4 (external device1) is open or short 0 t3_diode_open r 0 the diode of t3 (external device0) is open or short 7.18. temperature register ? index 70h ~ 83h address attribute default value description 70h ro -- local temperature[10:3] readi ng. the unit of reading is 1 o c.at the moment of reading this register. (when open or short this byte will return 0) 71h ro -- cr71 bit7-bit5 are the local temperature reading value[2:0]. the unit of reading is 0.125 o c. cr71 bit 0 is the sign bit of the local temperature. (when open or short this byte will return 1, ?sign bit set to 1?) 72h ro -- temperature 1 reading. the unit of reading is 1 o c.at the moment of reading this register. 73h ro -- cr73 bit7-bit5 are the temperature 1 readin g value[2:0]. the unit of reading is 0.125 o c. cr73 bit 0 is the sign bi t of the temperature 1. (when open or short this byte will return 1, ?sign bit set to 1?) 74h ro -- temperature 2 reading. the unit of reading is 1 o c.at the moment of reading this register. 75h ro -- cr75 bit7-bit5 are the temperature 2 readin g value[2:0]. the unit of reading is 0.125 o c. cr75 bit 0 is the sign bi t of the temperature 2. (when open or short this byte will return 1, ?sign bit set to 1?) 78h ro -- t3_read (external device 0) the unit of reading is 1 o c.at the moment of reading this register. 79h ro -- t4_read (external device 1) the unit of reading is 1 o c.at the moment of reading this register. 7ah ro -- t5_read (external device 2) the unit of reading is 1 o c.at the moment of reading this register. 7bh ro -- t6_read (external device 3) the unit of reading is 1 o c.at the moment of reading this register. 7c ro -- t7_read (external device 4) the unit of reading is 1 o c.at the moment of reading this register. 7d ro -- t8_read (external device 5) the unit of reading is 1 o c.at the moment of reading this register. 17 feb.. , 2008 v0.11p F75367 81h r/w 3ch local temperature sensor high limit. the unit is 1 o c. (if dev_bank_en is 0) 81h r/w 55h t3 high limit. the unit is 1 o c. (if dev_bank_en is 1) 83h r/w 55h temperature sensor 1 high limit. the unit is 1 o c. (if dev_bank_en is 0) 83h r/w 55h t4 high limit. the unit is 1 o c. (if dev_bank_en is 1) 85h r/w 55h temperature sensor 2 high limit. the unit is 1 o c. (when dev_bank_en is 0) 85h r/w 55h t5 high limit. the unit is 1 o c. (if dev_bank_en is 1) 87h r/w 55h t6 high limit. the unit is 1 o c. (if dev_bank_en is 1) 89h r/w 55h t7 high limit. the unit is 1 o c. (if dev_bank_en is 1) 8bh r/w 55h t8 high limit. the unit is 1 o c. (if dev_bank_en is 1) 7.19. temperature filter select register ? index 8eh bit name r/w default description 7-6 - r 0 reserved 5-4 iir-queur2 r/w 1h the queue time for second filter to quickly update values. 00: 8 times. 01: 16 times. (default). 10: 24 times. 11: 32 times. 3-2 iir-queur1 r/w 1h the queue time for second filter to quickly update values. 00: 8 times. 01: 16 times. (default). 10: 24 times. 11: 32 times. 1-0 iir-queur-local r/w 1h the queue time for second filter to quickly update values. 00: 8 times. 01: 16 times. (default). 10: 24 times. 11: 32 times. 18 feb.. , 2008 v0.11p F75367 8. electrical characteristic 8.1 absolute maximum ratings parameter rating unit power supply voltage -0.5 to 5.5 v input voltage -0.5 to vcc+0.5 v operating temperature 0 to 70 c storage temperature -55 to 150 c note: exposure to conditions beyond those listed under absolute maximum ratings may adversely affect the life and reliability o f the device 8.2 dc characteristics (t a = 0 c to 70 c, vcc = 3.3v 10%, vss = 0v ) parameter conditions min typ max unit temperature error, remote diode 60 o c < t d < 100 o c, vcc = 3.0v to 3.6v -40 o c 20 feb.. , 2008 v0.11p F75367 8.3 ac characteristics valid data scl sda in sda out t hd;sda t scl t t su;sto t su;dat serial bus timing diagram t r t r hd;dat serial bus timing parameter symbol min. max. unit scl clock period t - scl 2 - us start condition hold time t hd;sda 300 - ns stop condition setup-up time t su;sto 300 - ns data to scl setup time t su;dat 50 - ns data to scl hold time t hd;dat 5 - ns scl and sda rise time t r - 300 ns 9. ordering information part number package type production flow F75367s 8 pin sop green package commercial, 0 c to +70 c |
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