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1/22 MSM6577-xx ? semiconductor general description the MSM6577 is a 4-bit microcontroller that is fabricated in oki's low-voltage cmos technology, enabling operation at 0.9 v. this device incorporates lcd drivers, 8-bit synchronous serial ports, and a buzzer output circuit. the MSM6577 is optimized for remote-control microcontroller applications that are portable and battery powered. features ? operating range operating frequency : 32.768 khz operating voltage 1.5 v operation : MSM6577k/n/s/u 3.0 v operation : MSM6577l/c/d/e (see mask option list.) operating temperature : C20 to +70 c ? memory space rom : 1536 words 17 bits ram : 128 words 4 bits ? minimum instruction execution time : 61 m s ? i/o port input-output port : 1 port 4 bits input only port : 1 port 4 bits output only port : 1 port 4 bits ? serial port : 8-bit clock synchronous type ? lcd drivers : 28 duty and frame frequency are selectable by the mask options. 1/3 duty, 1/3 bias : up to 75 segments 1/2 duty, 1/3 bias : up to 52 segments ? halt release timers : 4 timer frequency is selectable by the mask options. ? external interrupt : 4 ? buzzer output : 1 ? clock : 32.768 khz crystal oscillator oscillation starts at 0.9 v. ? power supply voltage : 1.5 v/3.0 v (selectable by mask option) (see mask option list) ? packageoptions: 56-pin plastic qfp (qfp56-p-910-0.65-k) (product name : MSM6577 - gs-k) 56-pin plastic qfp (qfp56-p-910-0.65-2k) (product name : MSM6577 - gs-2k) chip indicates the code number. indicates the option code. ? semiconductor MSM6577-xx operatable at 0.9v and built-in lcd driver 4-bit microcontroller e2e0022-27-y3 this version: jan. 1998 previous version: mar. 1996
2/22 MSM6577-xx ? semiconductor block diagram p2.3 p2.2 p2.1 p2.0 ram 128 4 bits port2 port1 port0 pcio0 osc p1.3 p1.2 p1.1 p1.0 p0.3 p0.2 p0.1 p0.0 xt xtb system clock generator halt release timer tmout hrqtmr ehrtmr hrqser ehrser serial halt release serial i/o scnd0 scnd1 page work adrs program rom 1536 17 bits instruction reg. instruction decoder stack adder program counter frmt sbff h sbff l irqex eiex pnex interrupt control lcd driver voltage regulator lcdct tempo buzzer mdth mdtl mpx acc alu flag d-bus s-bus a-bus v cp v cm v ee v ss3 v ss2 v ss1 v dd seg27 seg0 bd time base counter
3/22 MSM6577-xx ? semiconductor pin configuration (top view) 1 seg0 2 seg1 3 seg2 4 seg3 5 seg4 6 seg5 7 seg6 8 seg7 9 seg8 10 seg9 11 seg10 42 41 40 39 38 37 36 35 34 33 32 seg27 seg26 seg25 seg24 seg23 seg22 seg21 seg20 seg19 seg18 seg17 56 reset 55 p2.3 54 p2.2 53 p2.1 52 p2.0/sout 51 p1.3/sin 50 p1.2/ sclk 49 v dd * 48 p1.1 47 p1.0 46 p0.3 15 test 16 (nc) 17 bd 18 v ss1 19 xtb 20 xt 21 v dd 22 v ss2 23 v ss3 24 v cm 25 v cp 12 seg11 31 seg16 13 seg12 30 seg15 14 seg13 29 seg14 45 p0.2 26 v ee 44 p0.1 27 (nc) 43 p0.0 28 (nc) nc: no-connection pin 56-pin plastic qfp * pin 49 (v dd ) is provided only when a 56-pin flat package is used.
4/22 MSM6577-xx ? semiconductor pin descriptions symbol ? 4-bit input-output port port0 (p0.0 to p0.3) type ? input or output software selectable. ? a pull-up resistor or pull-down resistor can be selected for each bit (p0.0 to p0.3) ? when using port as output, the pull-up or pull-down resistor is disconnected from the pin. ? 4-bit input port ? pull-up resistor or pull-down resistor can be selected for port1 (p1.0 to p1.3) (via mask option). ? 4-bit output port circuit serial clock pin external interrupt ports p1.0 serial input pin serial output pin p1.1 p1.2 p1.3 p2.0 p2.1 to p2.3 buzzer output pin ? reset input pin ? system reset generation level "h" or "l" selectable note : if "h" is selected, pull-down resistor is used and if "l" is selected, pull-up resistor is used. test pin (tie to the negative pole of the battery.)* oscillation crystal connection pin 0v power supply pin C1.5 v power supply pin (power supply pin for C1.5 v operation) C3.0 v power supply pin (power supply pin for C3.0 v operation) C4.5 v power supply pin capacitor connection pin for voltage converter internal logic power supply pin (voltage regulator output pin) liquid crystal display driving pins (mask option) sclk sin sout port1 (p1.0 to p1.3) port2 (p2.0 to p2.3) bd reset test xt xtb v dd v ss1 v ss2 v ss3 v cp v cm v ee seg0 to seg27 i/o i o o i i i o o d e f g h i a b c b e description (via mask option). * 3.0 v operation ...... v ss = v ss2 1.5 v operation ...... v ss = v ss1
5/22 MSM6577-xx ? semiconductor pin circuits a. input-output port (internal logic) (internal logic) i/o switching signal v ss v ss 3-state cmos buffer pull-up control signal v dd cmos inverter pull-down control signal v ss by power supply specification 3.0 v operation ... v ss =v ss2 1.5 v operation ... v ss =v ss1 v ss o i v dd o i v ss v ss : b. input port (internal logic) v ss pull-up control signal v dd cmos inverter pull-down control signal v ss
6/22 MSM6577-xx ? semiconductor c. input port (internal logic) sclk serial output control signal v ss v ss 3-state cmos buffer pull-up control signal v dd cmos inverter pull-down control signal v ss d. output port (internal logic) v ss cmos inverter (sout) output switching control signal e. output port, bd pin (internal logic) v ss cmos inverter
7/22 MSM6577-xx ? semiconductor f. reset pin v ss 1 v dd 2 cmos schmitt trigger buffer (internal logic) 1 2 v ss "1"...system reset generated by a "h" level "2"...system reset generated by a "l" level g. test pin (internal logic) v ss cmos inverter v ss h. oscillation part (xt, xtb pins) v ee rom option (normally connected) r f v ee v dd c g v ee c d cmos inverter (internal logic) constants r f =approximately 20 m w c d =approximately 20 pf c g =approximately 5 pf
8/22 MSM6577-xx ? semiconductor i. lcd driver (internal logic) v ss2 / v ss3 v dd / v ss1
9/22 MSM6577-xx ? semiconductor absolute maximum ratings (MSM6577k/77n/77s/77u) 1.5 v operation ?backup flag (buf)="0" the input of the constant voltage circuit corresponds to the output of the voltage converter (v ss2 ). parameter symbol condition rating unit v ss1 C4.0 to +0.3 power supply voltage 1 v in ta=25c C7.0 to +0.3 v input voltage v o3 C7.0 to +0.3 output voltage 3 *2 t stg C55 to +125 c storage temperature v dd =0 v (v ss1 =battery voltage) output voltage 2 *2 output voltage 1 *1,*2 power supply voltage 2 power supply voltage 3 v o2 v o1 v ss2 v ss3 v ss1 C0.3 to +0.3 v ss1 C0.3 to +0.3 v ss2 C0.3 to +0.3 v ss3 C0.3 to +0.3 *1 normal output *2 lcd driver output 1.5 v operation ?backup flag (buf)="0" the input of the constant voltage circuit corresponds to the output of the voltage converter (v ss2 ). recommended operating conditions (MSM6577k/77n/77s/77u) parameter condition range unit C0.9 to C1.75 v operating voltage C20 to +70 c operating temperature 32.768 khz oscillation frequency symbol v op t op f osc v dd =0 v (v ss1 =battery voltage)
10/22 MSM6577-xx ? semiconductor electrical characteristics (MSM6577k/77n/77s/77u) 1.5 v operation ?backup flag (buf)="0" the input of the constant voltage circuit corresponds to the output of the voltage converter (v ss2 ). 3 parameter symbol condition applicable pin i dd *1 current consumption unit a Ci oh3 v oh =C0.2 v output current 3 (lcd driver common ? segment) i oml3 v oml =v ss2 0.2 v 4 4 a i ol3 v ol =C4.3 v i ih1 v i =0 v, input mode, with pull-down resistor port0, port1 *2 input current 1 4 3.75 7.5 15 a C| il2 v i =C1.5 v, input mode, with pull-up resistor port0, port1 *2 input current 2 |i il | v i =0 v, C1.5 v input mode, without internal resistor port0, port1 *2 sin, sout, sclk reset *3 input leakage current i ih3 reset *3 test input current 3 3.75 30 7.5 100 15 1 200 a a a v i =0 v, with pull-down resistor (v dd =0 v, v ss1 =C1.5 v (battery voltage), v ss2 =C3.0 v, v ss3 =C4.5 v, f osc =32.768 khz, c x =35 pf, ta=25c) min. typ. max. oscillation start voltage Cv osc 0.9 v v ss1 within 2 sec Ci oh1 v o =C0.5 v port0, port 2 *2 sout, sclk output current 1 i ol1 v o =C1.0 v Ci oh2 v o =C0.5 v bd output current 2 150 150 20 a a i ol2 v o =C1.0 v 20 seg0 to seg27 i omh3 v omh =v ss1 0.2 v 4 Ci il4 reset *3 input current 4 30 100 200 a v i =C1.5 v, with pull-up resistor Cv ih all input pins input voltage 0.3 v Cv il 1.2 *1 dependent on program ("3 m a typ." is under 5% duty of the microcontroller). *2 port0=p0.0 to p0.3, port1=p1.0 to p1.3, port2=p2.0 to p2.3 (p1.2 is shared with sclk , p1.3 with sout, and p2.0 with sin) *3 the reset pin can be selected by mask option (with pull-down, with pull-up or without internal resistor). MSM6577k: system reset by a "h" level with a pull-down resistor MSM6577n: system reset by a "h" level without a pull-down resistor MSM6577s: system reset by a "l" level with a pull-up resistor MSM6577u: system reset by a "l" level without a pull-up resistor
11/22 MSM6577-xx ? semiconductor absolute maximum ratings (MSM6577k/n/s/u) 1.5 v operation ?backup flag (buf)="1" the input of the constant voltage circuit corresponds to the output of the battery (v ss1 ). parameter symbol condition rating unit v ss1 C4.0 to +0.3 power supply voltage 1 v in ta=25c C7.0 to +0.3 v input voltage v o3 C7.0 to +0.3 output voltage 3 *2 t stg C55 to +125 c storage temperature v dd =0 v (v ss1 =battery voltage) output voltage 2 *2 output voltage 1 *1,*2 power supply voltage 2 power supply voltage 3 v o2 v o1 v ss2 v ss3 v ss1 C0.3 to +0.3 v ss1 C0.3 to +0.3 v ss2 C0.3 to +0.3 v ss3 C0.3 to +0.3 *1 normal output *2 lcd driver output recommended operating conditions (MSM6577k/n/s/u) 1.5 v operation ?backup flag (buf)="1" the input of the constant voltage circuit corresponds to the output of the battery (v ss1 ). parameter condition range unit C0.9 to C1.75 v operating voltage C20 to +70 c operating temperature 32.768 khz oscillation frequency symbol v op t op f osc v dd =0 v (v ss1 =battery voltage)
12/22 MSM6577-xx ? semiconductor electrical characteristics (MSM6577k/n/s/u) 1.5 v operation ?backup flag (buf)="1" the input of the constant voltage circuit corresponds to the output of the battery (v ss1 ). 1.5 parameter symbol condition applicable pin i dd *1 current consumption unit a Ci oh3 v oh =C0.2 v output current 3 (lcd driver common ? segment) i oml3 v oml =v ss2 0.2 v 4 4 a i ol3 v ol =C4.3 v i ih1 v i =0 v, input mode, with pull-down resistor port0, port1 *2 input current 1 4 3.75 7.5 15 a C| il2 v i =C1.5 v, input mode, with pull-up resistor port0, port1 *2 input current 2 i il v i =0 v, C1.5 v input mode, without internal resistor port0, port1 *2 sin, sout, sclk reset *3 input leakage current i ih3 reset *3 test input current 3 3.75 30 7.5 100 15 1 200 a a a v i =0 v, with pull-down resistor (v dd =0 v, v ss1 =C1.5 v (battery voltage), v ss2 =C3.0 v, v ss3 =C4.5 v, f osc =32.768 khz, c x =35 pf, ta=25c) min. typ. max. oscillation start voltage Cv osc 0.9 v v ss1 within 2 sec Ci oh1 v o =C0.5 v port0, port2 *2 sout, sclk output current 1 i ol1 v o =C1.0 v Ci oh2 v o =C0.5 v bd output current 2 150 150 20 a a i ol2 v o =C1.0 v 20 seg0 to seg27 i omh3 v omh =v ss1 0.2 v 4 Ci il4 reset *3 input current 4 30 100 200 a v i =C1.5 v, with pull-up resistor Cv ih all input pins input voltage 0.3 v Cv il 1.2 *1 dependent on program ("1.5 m a typ." is under 5% duty of the microcontroller) *2 port0=p0.0 to p0.3, port1=p1.0 to p1.3, port2=p2.0 to p2.3 (p1.2 is shared with sclk , p1.3 with sout, and p2.0 with sin.) *3 reset pin can be selected by mask option (with pull-down, with pull-up or without inter- nal resistor). MSM6577k: system reset by a "h" level with a pull-down resistor MSM6577n: system reset by a "h" level without a pull-down resistor MSM6577s: system reset by a "l" level with a pull-up resistor MSM6577u: system reset by a "l" level without a pull-up resistor
13/22 MSM6577-xx ? semiconductor absolute maximum ratings (MSM6577l/c/d/e) 3.0 v operation ?backup flag (buf)="0" the input of the constant voltage circuit corresponds to the output of the voltage converter (v ss1 ). parameter symbol condition rating unit v ss1 C4.0 to +0.3 power supply voltage 1 v in ta=25c C7.0 to +0.3 v input voltage v o3 C7.0 to +0.3 output voltage 3 *2 t stg C55 to +125 c storage temperature v dd =0 v (v ss2 =battery voltage) output voltage 2 *1,*2 output voltage 1 *2 power supply voltage 2 power supply voltage 3 v o2 v o1 v ss2 v ss3 v ss2 C0.3 to +0.3 v ss1 C0.3 to +0.3 v ss2 C0.3 to +0.3 v ss3 C0.3 to +0.3 *1 normal output *2 lcd driver output recommended operating conditions (MSM6577l/c/d/e) 3.0 v operation ?backup flag (buf)="0" the input of the constant voltage circuit corresponds to the output of the voltage converter (v ss1 ). parameter condition range unit C1.8 to C3.5 v operating voltage C20 to +70 c operating temperature 32.768 khz oscillation frequency symbol v op t op f osc v dd =0 v (v ss2 =battery voltage)
14/22 MSM6577-xx ? semiconductor electrical characteristics (MSM6577l/c/d/e) 3.0 v operation ?backup flag (buf)="0" the input of the constant voltage circuit corresponds to the output of the voltage converter (v ss1 ). 0.75 parameter symbol conditions applicable pin i dd *1 current consumption unit a Ci oh3 v oh =C0.2 v output current 3 (lcd driver common/segment) i oml3 v oml =v ss2 0.2 v 4 4 a i ol3 v ol =C4.3 v i ih1 v i =0 v, input mode, with pull-down resistor port0, port1 *2 input current 1 4 60 120 240 a C| il2 v i =C3.0 v, input mode, with pull-up resistor port0, port1 *2 input current 2 i il v i =0 v, C3.0 v input mode, without internal resistor port0, port1 *2 sin, sout, sclk reset *3 input leakage current i ih3 reset *3 test input current 3 60 200 120 750 240 1 1500 a a a v i =0 v, with pull-down resistor (v dd =0 v, v ss1 =C1.5 v, v ss2 =C3.0 v (battery voltage), v ss3 =C4.5 v, f osc =32.768 khz, c x =35 pf, ta=25c) min. typ. max. oscillation start voltage Cv osc 1.8 v v ss2 within 2 sec Ci oh1 v o =C0.5 v port0, port2 *2 sout, sclk output current 1 i ol1 v o =C2.5 v Ci oh2 v o =C0.5 v bd output current 2 500 500 20 a a i ol2 v o =C2.5 v 20 seg0 to seg27 i omh3 v omh =v ss1 0.2 v 4 Ci il4 reset *3 input current 4 200 750 1500 a v i =C3.0 v, with pull-up resistor Cv ih all input pins input voltage 0.5 v Cv il 2.5 *1 dependent on program ("0.75 m a typ." is under 5% duty of the mcu.) *2 port0=p0.0 to p0.3, port1=p1.0 to p1.3, port2=p2.0 to p2.3 (p1.2 is shared with sclk , p1.3 with sout, and p2.0 with sin.) *3 reset pin can be selected by mask option (with pull-down, with pull-up or without inter- nal resistor). MSM6577l: system reset by a "h" level with a pull-down resistor MSM6577c: system reset by a "h" level without a pull-down resistor MSM6577d: system reset by a "l" level with a pull-up resistor MSM6577e: system reset by a "l" level without a pull-up resistor
15/22 MSM6577-xx ? semiconductor absolute maximum ratings (MSM6577l/c/d/e) 3.0 v operation ?backup flag (buf)="1" the input of the constant voltage circuit corresponds to the output of the battery (v ss2 ). parameter symbol condition rating unit v ss1 C4.0 to +0.3 supply voltage 1 v in ta=25c C7.0 to +0.3 v input voltage v 03 C7.0 to +0.3 output voltage 3 *2 t stg C55 to +125 c storage temperature v dd =0 v (v ss2 =battery voltage) output voltage 2 *1,*2 output voltage 1 *2 supply voltage 2 supply voltage 3 v 02 v 01 v ss2 v ss3 v ss2 C0.3 to +0.3 v ss1 C0.3 to +0.3 v ss2 C0.3 to +0.3 v ss3 C0.3 to +0.3 *1 normal output *2 lcd driver output recommended operating conditions (MSM6577l/c/d/e) 3.0 v operation ?backup flag (buf)="1" the input of the constant voltage circuit corresponds to the output of the battery (v ss2 ). parameter condition range unit C0.9 to C3.5 v operating voltage C20 to +70 c operating temperature 32.768 khz oscillation frequency symbol v op t op f osc v dd =0 v (v ss2 =battery voltage)
16/22 MSM6577-xx ? semiconductor electrical characteristics (MSM6577l/c/d/e) 3.0 v operation ?backup flag (buf)="1" the input of the constant voltage circuit corresponds to the output of the battery (v ss2 ). 1.5 parameter symbol condition applicable pin i dd *1 current consumption unit a Ci oh3 v oh =C0.2 v output current 3 (lcd driver common ? segment) i oml3 v oml =v ss2 0.2 v 4 4 a i ol3 v ol =C4.3 v i ih1 v i =0 v, input mode, with pull-down resistor port0, port1 *2 input current 1 4 60 120 240 a C| il2 v i =C3.0 v, input mode, with pull-up resistor port0, port1 *2 input current 2 | il v i =0 v, C3.0 v input mode, without internal resistor port0, port1 *2 sin, sout, sclk reset *3 input leakage current i ih3 reset *3 test input current 3 60 200 120 750 240 1 1500 a a a v i =0 v, with pull-down resistor (v dd =0 v, v ss1 =C1.5 v, v ss2 =C3.0 v (battery voltage), v ss3 =C4.5 v, f osc =32.768 khz, c x =35 pf, ta=25c) min. typ. max. oscillation start voltage Cv osc 0.9 v v ss2 within 2 sec Ci oh1 v o =C0.5 v port0, port2 *2 sout, sclk output current 1 i ol1 v o =C2.5 v Ci oh2 v o =C0.5 v bd output current 2 500 500 20 a a i ol2 v o =C2.5 v 20 seg0 to seg27 i omh3 v omh =v ss1 0.2 v 4 Ci il4 reset *3 input current 4 200 750 1500 a v i =C3.0 v, with pull-up resistor Cv ih all input pins input voltage 0.5 v Cv il 2.5 *1 dependent on program ("1.5 m a typ." is under 5% duty of the mcu.) *2 port0=p0.0 to p0.3, port1=p1.0 to p1.3, port2=p2.0 to p2.3 (p1.2 is shared with sclk , p1.3 with sout, and p2.0 with sin.) *3 reset pin can be selected by mask option (with pull-down, with pull-up or without inter- nal resistor). MSM6577l: system reset by a "h" level with a pull-down resistor MSM6577c: system reset by a "h" level without a pull-down resistor MSM6577d: system reset by a "l" level with a pull-up resistor MSM6577e: system reset by a "l" level without a pull-up resistor
17/22 MSM6577-xx ? semiconductor mask option list the device names for the MSM6577-xx are differentiated as follows, depending on the combination of a power supply voltage and reset pin function. no. battery reset pin function device 1 2 3 4 5 6 7 8 1.5 v operation 1.5 v operation 1.5 v operation 1.5 v operation 3.0 v operation 3.0 v operation 3.0 v operation 3.0 v operation system reset by a "h" level with a pull-down resistor system reset by a "h" level without a pull-down resistor system reset by a "l" level with a pull-up resistor system reset by a "l" level without a pull-up resistor system reset by a "h" level with a pull-down resistor system reset by a "h" level without a pull-down resistor system reset by a "l" level with a pull-up resistor system reset by a "l" level without a pull-up resistor MSM6577k-xx MSM6577n-xx MSM6577s-xx MSM6577u-xx MSM6577l-xx MSM6577c-xx MSM6577d-xx MSM6577e-xx
18/22 MSM6577-xx ? semiconductor notes on use power supply for 0.9 v microcontroller series: backup flag and constant-voltage circuit the 0.9 v microcontroller series have a built-in constant-voltage circuit. the output of this constant-voltage circuit powers the microcontroller's internal logic circuits. setting a backup flag (buf) allows the input of the constant voltage circuit to be switched to either the battery or the output generated in the voltage converter, based on the battery voltage. a battery voltage of 1.5 v or 3.0 v can be selected. the output (v ee ) of the constant-voltage circuit is set at approximately C1.3 v. this allows the current consumed by the internal logic to be limited, irrespective of the battery voltage. however, if the input of the constant voltage circuit is below this set value (about C1.3 v), the output (v ee ) is equal to the input. the 0.9 v microcontroller can be operated even if the internal voltage (output from the constant-voltage circuit) falls to 0.9 v. setting the backup flag allows a larger operating voltage margin despite changes in internal voltage due to noise. for example, for the 1.5 v operation, setting the backup flag to "0" supplies twice the battery voltage to the constant-voltage circuit. thus, even if the battery voltage falls to 0.9 v, the output voltage (v ee ) is maintained at C1.3 v, providing a larger margin of operating voltage of the internal logic circuits because 1.8 v is applied to the input of the constant-voltage circuit. figures 1 to 4 show the internal status depending on the backup flag settings for the battery, as well as status features. xtal v dd (0 v) v ss1 (C1.5 v) v ss2 (C3.0 v) v ss3 (C4.5 v) v ee (aboutC1.3 v) lcd driver* voltage converter backup flag (buf) constant voltage circuit vr internal logic xt xtb * the v ss3 pin is provided for the devices that contain an lcd driver. *
19/22 MSM6577-xx ? semiconductor (figure 1) 1.5 v operation (backup flag="1") (figure 2) 1.5 v operation (backup flag="0") (figure 3) 3.0 v operation (backup flag="1") voltage converter vr internal logic v dd =0 v v b =C1.5 v (C3.0 v) v ee v dd v ss1 v ss2 voltage doubler internal status operating range current consumption feature a doubled level of v ss2 is applied to the input of the constant voltage circuit. C0.9 to C1.75 v 3 m a* when the baftery level is powered down, a larger operating voltage margin is gained, compared to the case of figure 1. * when the software dut y is about 5% voltage converter vr internal logic v dd =0 v v b =C1.5 v (C3.0 v) v ee v dd v ss1 v ss2 voltage doubler internal status operating range current consumption feature the battery level v ss1 is applied to the input of the constant voltage circuit. C0.9 to C1.75 v 1.5 m a* when the battery level is powered down, the internal circuit is powered directly by the battery. * when the software dut y is about 5% voltage converter vr internal logic v dd= 0 v v b =C3.0 v (C1.5 v) v ee v dd v ss1 v ss2 voltage doubler internal status operating range current consumption feature the battery level v ss2 is applied to the input of the constant voltage circuit. C0.9 to C3.5 v 1.5 m a* when the battery level is powered down, the internal circuit is powered directly by the battery. * when the software dut y is about 5%
20/22 MSM6577-xx ? semiconductor (figure 4) 3.0 v operation (backup flag="0") voltage converter vr internal logic v dd =0 v v b =C3.0 v (C1.5 v) v ee v dd v ss1 v ss2 voltage rise internal status operating range current consumption feature a doubled level of v ss1 is applied to the input of the constant voltage circuit. C1.8 to C3.5 v 0.75 m a* when the battery level is powered down, a smaller operating voltage margin is gained, compared to the case of figure 3. * when the software dut y is about 5%
21/22 MSM6577-xx ? semiconductor (unit : mm) package dimensions notes for mounting the surface mount type package the sop, qfp, tsop, soj, qfj (plcc), shp and bga are surface mount type packages, which are very susceptible to heat in reflow mounting and humidity absorbed in storage. therefore, before you perform reflow mounting, contact okis responsible sales person for the product name, package name, pin number, package code and desired mounting conditions (reflow method, temperature and times). qfp56-p-910-0.65-k package material lead frame material pin treatment solder plate thickness package weight (g) epoxy resin 42 alloy solder plating 5 m m or more 0.36 typ. mirror finish
22/22 MSM6577-xx ? semiconductor (unit : mm) notes for mounting the surface mount type package the sop, qfp, tsop, soj, qfj (plcc), shp and bga are surface mount type packages, which are very susceptible to heat in reflow mounting and humidity absorbed in storage. therefore, before you perform reflow mounting, contact okis responsible sales person for the product name, package name, pin number, package code and desired mounting conditions (reflow method, temperature and times). qfp56-p-910-0.65-2k package material lead frame material pin treatment solder plate thickness package weight (g) epoxy resin 42 alloy solder plating 5 m m or more 0.43 typ. mirror finish

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