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cy62148ev30ll automotive 4-mbit (512 k 8) static ram cypress semiconductor corporation ? 198 champion court ? san jose , ca 95134-1709 ? 408-943-2600 document number: 001-73042 rev. *a revised march 26, 2014 4-mbit (512 k 8) static ram features very high speed: 55 ns ? wide voltage range: 2.20 v to 3.60 v temperature range: ? automotive-e: ?40 c to +125 c pin compatible with cy62148dv30 ultra low standby power ? typical standby current: 3 ? a ? maximum standby current: 20 ? a ultra low active power ? typical active current: 2 ma at f = 1 mhz easy memory expansion with ce and oe features automatic power down when deselected complementary metal oxide semiconductor (cmos) for optimum speed and power available in pb-free, 32-pin thin small outline package (tsop ii). functional description the cy62148ev30ll automotive is a high performance cmos static ram organized as 512 k words by 8 bits. this device features advanced circuit design to provide ultra low active current. this is ideal for prov iding more batt ery life? (mobl ? ) in portable applications such as cellular telephones. the device also has an automatic power down feature that significantly reduces power consumption. placing the device into standby mode reduces power consumption by more than 99 percent when deselected (ce high). the eight input and output pins (i/o 0 through i/o 7 ) are placed in a high impedance state when the device is deselected (ce high), the outputs are disabled (oe high), or during a write operation (ce low and we low). to write to the device, take chip enable (ce ) and write enable (we ) inputs low. data on the eight i/o pins (i/o 0 through i/o 7 ) is then written into the location specified on the address pins (a 0 through a 18 ). to read from the device, take chip enable (ce ) and output enable (oe ) low while forcing write enable (we ) high. under these conditions, the contents of the memory location specified by the address pins appear on the i/o pins. a 0 io 0 io 7 io 1 io 2 io 3 io 4 io 5 io 6 a 1 a 2 a 3 a 4 a 5 a 6 a 7 a 8 a 9 sense amps power down ce we oe a 13 a 14 a 15 a 16 a 17 row decoder column decoder 512k x 8 array input buffer a 10 a 11 a 12 a 18 logic block diagram i/o 0 i/o 1 i/o 2 i/o 3 i/o 4 i/o 5 i/o 6 i/o 7
cy62148ev30ll automotive document number: 001-73042 rev. *a page 2 of 16 contents pin configuration ............................................................. 3 product portfolio .............................................................. 3 maximum ratings ............................................................. 4 operating range ............................................................... 4 electrical characteristics ................................................. 4 capacitance ...................................................................... 5 thermal resistance .......................................................... 5 ac test loads and waveforms ....................................... 5 data retention characteristics ....................................... 6 data retention waveform ................................................ 6 switching characteristics ................................................ 7 switching waveforms ...................................................... 8 truth table ...................................................................... 11 ordering information ...................................................... 12 ordering code definitions ..... .................................... 12 package diagrams .......................................................... 13 acronyms ........................................................................ 14 document conventions ................................................. 14 units of measure ....................................................... 14 document history page ................................................. 15 sales, solutions, and legal information ...................... 16 worldwide sales and design s upport ......... .............. 16 products .................................................................... 16 psoc? solutions ...................................................... 16 cypress developer community ................................. 16 technical support ................. .................................... 16
cy62148ev30ll automotive document number: 001-73042 rev. *a page 3 of 16 pin configuration figure 1. 32-pin tsop ii pinout (top view) [1] 1 2 3 4 5 6 7 8 9 10 11 14 31 32 12 13 16 15 29 30 21 22 19 20 27 28 25 26 17 18 23 24 a 17 a 16 a 15 a 14 a 13 a 12 a 11 a 10 a 9 a 8 a 7 a 6 a 5 a 4 a 3 a 2 a 1 a 0 i/o 0 i/o 1 i/o 2 i/o 3 i/o 4 i/o 5 i/o 6 i/o 7 v ss v cc a 18 we oe ce product portfolio product range v cc range (v) speed (ns) power dissipation operating i cc (ma) standby i sb2 (a) f = 1 mhz f = f max min typ [2] max typ [2] max typ [2] max typ [2] max cy62148ev30ll tsop ii automotive-e 2.2 3.0 3.6 55 2 3 15 30 3 20 notes 1. nc pins are not connected on the die. 2. typical values are included for reference only and are not guaranteed or tested. typical values are measured at v cc = v cc(typ) , t a = 25 c.
cy62148ev30ll automotive document number: 001-73042 rev. *a page 4 of 16 maximum ratings exceeding the maximum ratings may shorten the useful life of the device. these user guidelines are not tested. storage temperature .. ............... ............... ?65 c to +150 c ambient temperature with power applied ............................................ 55 c to +125 c supply voltage to ground potential .......................................?0.3 v to v cc(max) + 0.3 v dc voltage applied to outputs in high-z state [3, 4] .....................?0.3 v to v cc(max) + 0.3 v dc input voltage [3, 4] ...................?0.3 v to v cc(max) + 0.3 v output current into outputs (low) ............................. 20 ma static discharge voltage (mil-std-883, method 3015) ................................ > 2001 v latch up current ..................................................... > 200 ma operating range product range ambient temperature v cc [5] cy62148ev30ll automotive automotive-e ?40 c to +125 c 2.2 v to 3.6 v electrical characteristics over the operating range parameter description test conditions ?55 unit min typ [6] max v oh output high voltage i oh = ?0.1 ma 2.0 ? ? v i oh = ?1.0 ma, v cc > 2.70 v 2.4 ? ? v v ol output low voltage i ol = 0.1 ma ? ? 0.4 v i ol = 2.1 ma, v cc > 2.70 v ? ? 0.4 v v ih input high voltage v cc = 2.2 v to 2.7 v 1.8 ? v cc + 0.3 v v v cc = 2.7 v to 3.6 v 2.2 ? v cc + 0.3 v v v il input low voltage v cc = 2.2 v to 2.7 v ?0.3 ? 0.6 v v cc = 2.7 v to 3.6 v ?0.3 ? 0.8 v i ix input leakage current gnd < v in < v cc ?5 ? +5 ? a i oz output leakage current gnd < v o < v cc , output disabled ?5 ? +5 ? a i cc v cc operating supply current f = f max = 1/t rc v cc = v cc(max) , i out = 0 ma, cmos levels ?1530ma f = 1 mhz ?23 i sb1 [7] automatic ce power down current ? cmos inputs ce > v cc ? 0.2 v, v in > v cc ? 0.2 v, v in < 0.2 v, f = f max (address and data only), f = 0 (oe and we ), v cc = 3.60 v ?320 ? a i sb2 [7] automatic ce power down current ? cmos inputs ce > v cc ? 0.2 v, v in > v cc ? 0.2 v or v in < 0.2 v, f = 0, v cc = 3.60 v ?320 ? a notes 3. v il(min) = ?2.0v for pulse durations less than 20 ns. 4. v ih(max) = v cc + 0.75 v for pulse durations less than 20 ns. 5. full device ac operation assumes a minimum of 100 ? s ramp time from 0 to v cc(min) and 200 ? s wait time after v cc stabilization. 6. typical values are included for reference only and are not guaranteed or tested. typical values are measured at v cc = v cc(typ) , t a = 25 c. 7. chip enable (ce ) must be high at cmos level to meet the i sb1 / i sb2 / i ccdr spec. other inputs can be left floating.
cy62148ev30ll automotive document number: 001-73042 rev. *a page 5 of 16 capacitance parameter [8] description test conditions max unit c in input capacitance t a = 25 c, f = 1 mhz, v cc = v cc(typ) 10 pf c out output capacitance 10 pf thermal resistance parameter [8] description test conditions tsop ii package unit ? ja thermal resistance (junction to ambient) still air, soldered on a 3 4.5 inch, two-layer printed circuit board 75.13 ? c/w ? jc thermal resistance (junction to case) 8.95 ? c/w ac test loads and waveforms figure 2. ac test loads and waveforms v cc v cc output r2 30 pf including jig and scope gnd 90% 10% 90% 10% rise time = 1 v/ns fall time = 1 v/ns output v equivalent to: thevenin equivalent all input pulses r th r1 parameters 2.50 v 3.0 v unit r1 16667 1103 ? r2 15385 1554 ? r th 8000 645 ? v th 1.20 1.75 v note 8. tested initially and after any design or proces s changes that may affect these parameters.
cy62148ev30ll automotive document number: 001-73042 rev. *a page 6 of 16 data retention characteristics over the operating range parameter description conditions min typ [9] max unit v dr v cc for data retention 1.5 ? ? v i ccdr [10] data retention current v cc = 1.5 v, ce > v cc ? 0.2 v, v in > v cc ? 0.2 v or v in < 0.2 v automotive-e ? 3 20 ? a t cdr [11] chip deselect to data retention time 0??ns t r [12] operation recovery time 55 ? ? ? data retention waveform figure 3. data retention waveform v cc(min) v cc(min) t cdr v dr > 1.5 v data retention mode t r v cc ce notes 9. typical values are included for reference only and are not guaranteed or tested. typical values are measured at v cc = v cc(typ) , t a = 25 c. 10. chip enable (ce ) must be high at cmos level to meet the i sb1 / i sb2 / i ccdr spec. other inputs can be left floating. 11. tested initially and after any design or process changes that may affect these parameters. 12. full device ac operation requires linear v cc ramp from v dr to v cc(min) > 100 ? s or stable at v cc(min) > 100 ? s.
cy62148ev30ll automotive document number: 001-73042 rev. *a page 7 of 16 switching characteristics over the operating range parameter [13] description -55 unit min max read cycle t rc read cycle time 55 ? ns t aa address to data valid ? 55 ns t oha data hold from address change 10 ? ns t ace ce low to data valid ? 55 ns t doe oe low to data valid ? 25 ns t lzoe oe low to low z [14] 5 ? ns t hzoe oe high to high z [14, 15] ? 20 ns t lzce ce low to low z [14] 10 ? ns t hzce ce high to high z [14, 15] ? 20 ns t pu ce low to power up 0 ? ns t pd ce high to power up ? 55 ns write cycle [16] t wc write cycle time 55 ? ns t sce ce low to write end 40 ? ns t aw address setup to write end 40 ? ns t ha address hold from write end 0 ? ns t sa address setup to write start 0 ? ns t pwe we pulse width 40 ? ns t sd data setup to write end 25 ? ns t hd data hold from write end 0 ? ns t hzwe we low to high z [14, 15] ? 20 ns t lzwe we high to low z [14] 10 ? ns notes 13. test conditions for all parameters other than tri-state paramete rs assume signal transition time of 3 ns or less (1 v/ns), t iming reference levels of v cc(typ) /2, input pulse levels of 0 to v cc(typ) , and output loading of the specified i ol /i oh as shown in the figure 2 on page 5. 14. at any given temperature and voltage condition, t hzce is less than t lzce , t hzoe is less than t lzoe , and t hzwe is less than t lzwe for any given device. 15. t hzoe , t hzce , and t hzwe transitions are measured when the output enter a high impedance state. 16. the internal write time of the memory is defined by the overlap of we , ce = v il . all signals must be active to initiate a write and any of these signals can terminate a write by going inactive. the data input setup and hold timing mu st be referenced to the edge of the signal that terminates th e write.
cy62148ev30ll automotive document number: 001-73042 rev. *a page 8 of 16 switching waveforms figure 4. read cycle no. 1 (address transition controlled) [17, 18] figure 5. read cycle no. 2 (oe controlled) [18, 19] previous data valid data out valid rc t aa t oha t rc address data i/o 50% 50% data out valid t rc t ace t doe t lzoe t lzce t pu high impedance t hzoe t hzce t pd impedance i cc i sb high address ce data i/o v cc supply current oe notes 17. device is continuously selected. oe , ce = v il . 18. we is high for read cycles. 19. address valid before or similar to ce transition low.
cy62148ev30ll automotive document number: 001-73042 rev. *a page 9 of 16 figure 6. write cycle no. 1 (we controlled, oe high during write) [20, 21] switching waveforms (continued) data in valid t hd t sd t pwe t sa t ha t aw t sce t wc t hzoe address ce we data i/o oe note 22 notes 20. data i/o is high impedance if oe = v ih . 21. if ce goes high simultaneously with we high, the output remains in high impedance state. 22. during this period, the i/os are in output state. do not apply input signals.
cy62148ev30ll automotive document number: 001-73042 rev. *a page 10 of 16 figure 7. write cycle no. 2 (ce controlled) [23, 24] figure 8. write cycle no. 3 (we controlled, oe low) [24] switching waveforms (continued) t wc data in valid t aw t sa t pwe t ha t hd t sd t sce address ce data i/o we data in valid t hd t sd t lzwe t pwe t sa t ha t aw t sce t wc t hzwe address ce we data i/o note 25 notes 23. data i/o is high impedance if oe = v ih . 24. if ce goes high simultaneously with we high, the output remains in high impedance state. 25. during this period, the i/os are in output state. do not apply input signals.
cy62148ev30ll automotive document number: 001-73042 rev. *a page 11 of 16 truth table ce [26] we oe inputs/outputs mode power h x x high z deselect/power down standby (i sb ) l h l data out read active (i cc ) l h h high z output disabled active (i cc ) l l x data in write active (i cc ) notes 26. chip enable must be at cmos levels (not floating). intermediate voltage levels on this pin is not permitted.
cy62148ev30ll automotive document number: 001-73042 rev. *a page 12 of 16 ordering code definitions ordering information speed (ns) ordering code package diagram package type operating range 55 cy62148ev30ll-55zsxe 51-85095 32-pin tsop ii automotive-e contact your local cypress sales repres entative for availability of these parts.
cy62148ev30ll automotive document number: 001-73042 rev. *a page 13 of 16 package diagrams figure 9. 32-pin tsop ii (20.95 11 .76 1.0 mm) package outline, 51-85095 51-85095 *b
cy62148ev30ll automotive document number: 001-73042 rev. *a page 14 of 16 acronyms document conventions units of measure acronym description bhe byte high enable ble byte low enable cmos complementary metal oxide semiconductor ce chip enable i/o input/output oe output enable sram static random access memory tsop thin small outline package we write enable symbol unit of measure c degree celsius a microampere ma milliampere ns nanosecond pf picofarad vvolt wwatt
cy62148ev30ll automotive document number: 001-73042 rev. *a page 15 of 16 document history page document title: cy62148ev30ll automotive, 4-mbit (512 k 8) static ram document number: 001-73042 revision ecn orig. of change submission date description of change ** 3406557 tava 10/03/2012 new data sheet *a 4321736 memj 03/26/2014 updated ordering information : no change in part numbers. replaced ?51-85081? with ?51-85095? in package diagram column. updated in new template.
document number: 001-73042 rev. *a revised march 26, 2014 page 16 of 16 all products and company names mentioned in this document may be the trademarks of their respective holders. cy62148ev30ll automotive ? cypress semiconductor corporation, 2012-2014. the information contained herein is subject to change without notice. cypress s emiconductor corporation assumes no responsibility for the use of any circuitry other than circuitry embodied in a cypress product. nor does it convey or imply any license under patent or other rights. cypress products are not warranted nor intended to be used for medical, life support, life saving, critical control or safety applications, unless pursuant to an express written agreement wi th cypress. furthermore, cypress does not authorize its products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. the inclusion of cypress products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies cypress against all charges. any source code (software and/or firmware) is owned by cypress semiconductor corporation (cypress) and is protected by and subj ect to worldwide patent protection (united states and foreign), united states copyright laws and internatio nal treaty provisions. cypress hereby grants to licensee a personal, non-exclusive, non-transferable license to copy, use, modify, create derivative works of, and compile the cypress source code and derivative works for the sole purpose of creating custom software and or firmware in su pport of licensee product to be used only in conjunction with a cypress integrated circuit as specified in the applicable agreement. any reproduction, modification, translation, compilation, or repre sentation of this source code except as specified above is prohibited without the express written permission of cypress. disclaimer: cypress makes no warranty of any kind, express or implied, with regard to this material, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. cypress reserves the right to make changes without further notice to t he materials described herein. cypress does not assume any liability arising out of the application or use of any product or circuit described herein. cypress does not authori ze its products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. the inclusion of cypress? prod uct in a life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies cypress against all charges. use may be limited by and subject to the applicable cypress software license agreement. sales, solutions, and legal information worldwide sales and design support cypress maintains a worldwide network of offices, solution center s, manufacturer?s representatives, and distributors. to find t he office closest to you, visit us at cypress locations . products automotive cypress.co m/go/automotive clocks & buffers cypress.com/go/clocks interface cypress. com/go/interface lighting & power control cypress.com/go/powerpsoc cypress.com/go/plc memory cypress.com/go/memory psoc cypress.com/go/psoc touch sensing cyp ress.com/go/touch usb controllers cypress.com/go/usb wireless/rf cypress.com/go/wireless psoc ? solutions psoc.cypress.com/solutions psoc 1 | psoc 3 | psoc 4 | psoc 5lp cypress developer community community | forums | blogs | video | training technical support cypress.com/go/support

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