CY62137EV30 MoBL® 2-Mbit (128K x 16) Static RAM Features Functional Description ■ Very high speed: 45 ns ■ Wide voltage range: 2.20 V to 3.60 V ■ Pin compatible with CY62137CV30 ■ Ultra low standby power ❐ Typical standby current: 1 A ❐ Maximum standby current: 7 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 ■ Byte power-down feature ■ Offered in Pb-free 48-ball very fine ball grid array (VFBGA) and 44-pin thin small outline package (TSOPII) package The CY62137EV30[1] is a high performance CMOS static RAM organized as 128K words by 16 bits. This device features advanced circuit design to provide ultra low active current. This is ideal for providing More Battery Life™ (MoBL®) in portable applications such as cellular telephones. The device also has an automatic power down feature that significantly reduces power consumption by 90% when addresses are not toggling. The device can also be put into standby mode reducing power consumption when deselected (CE HIGH or both BLE and BHE are HIGH). The input and output pins (I/O0 through I/O15) are placed in a high impedance state when: deselected (CE HIGH), outputs are disabled (OE HIGH), both Byte High Enable and Byte Low Enable are disabled (BHE, BLE HIGH), or during a write operation (CE LOW and WE LOW). Writing to the device is accomplished by asserting Chip Enable (CE) and Write Enable (WE) inputs LOW. If Byte Low Enable (BLE) is LOW, then data from I/O pins (I/O0 through I/O7), is written into the location specified on the address pins (A0 through A16). If Byte High Enable (BHE) is LOW, then data from I/O pins (I/O8 through I/O15) is written into the location specified on the address pins (A0 through A16). Reading from the device is accomplished by asserting Chip Enable (CE) and Output Enable (OE) LOW while forcing the Write Enable (WE) HIGH. If Byte Low Enable (BLE) is LOW, then data from the memory location specified by the address pins appears on I/O0 to I/O7. If Byte High Enable (BHE) is LOW, then data from memory appears on I/O8 to I/O15. See the Truth Table on page 10 for a complete description of read and write modes. The CY62137EV30 is available in 48-ball VFBGA and 44-pin TSOPII packages. Logic Block Diagram ROW DECODER 128K x 16 RAM Array SENSE AMPS DATA IN DRIVERS A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 I/O0 – I/O7 I/O8 – I/O15 COLUMN DECODER BHE WE CE OE BLE BHE BLE A13 A14 A15 A16 A11 CE A12 Power -Down Circuit Note 1. For best practice recommendations, refer to the Cypress application note “SRAM System Design Guidelines” on http://www.cypress.com. Cypress Semiconductor Corporation Document #: 38-05443 Rev. *D • 198 Champion Court • San Jose, CA 95134-1709 • 408-943-2600 Revised January 17, 2011 [+] Feedback CY62137EV30 MoBL® Contents Pin Configurations ............................................................ 3 Product Portfolio .............................................................. 3 Maximum Ratings ............................................................. 4 Operating Range ............................................................... 4 Electrical Characteristics ................................................. 4 Capacitance ...................................................................... 5 Thermal Resistance .......................................................... 5 Data Retention Characteristics ....................................... 5 Data Retention Waveform................................................. 5 Switching Characteristics ................................................ 6 Switching Waveforms ...................................................... 7 Truth Table ...................................................................... 10 Document #: 38-05443 Rev. *D Ordering Information ...................................................... 11 Ordering Code Definition ........................................... 11 Package Diagrams .......................................................... 12 Acronyms ........................................................................ 13 Document Conventions ................................................. 13 Units of Measure ....................................................... 13 Document History Page ................................................. 14 Sales, Solutions, and Legal Information ...................... 15 Worldwide Sales and Design Support ....................... 15 Products .................................................................... 15 PSoC Solutions ......................................................... 15 Page 2 of 15 [+] Feedback CY62137EV30 MoBL® Pin Configurations[2, 3] VFBGA (Top View) 44 TSOP II (Top View) 1 2 3 4 5 6 BLE OE A0 A1 A2 NC A I/O8 BHE A3 A4 CE I/O0 B I/O9 I/O10 A5 A6 I/O1 I/O2 C D E VSS I/O11 NC A7 I/O3 Vcc VCC I/O12 NC A16 I/O4 Vss I/O14 I/O13 A14 A15 I/O5 I/O6 F I/O15 NC A12 A13 WE I/O7 G NC A8 A9 A10 A11 NC A4 A3 A2 A1 A0 CE I/O0 I/O1 I/O2 I/O3 VCC VSS I/O4 I/O5 I/O6 I/O7 WE A16 A15 A14 A13 A12 H 1 44 2 3 43 42 4 41 40 39 38 5 6 7 8 9 10 11 12 37 36 35 34 33 32 31 30 29 28 27 13 14 15 16 17 18 19 20 21 22 26 25 24 23 A5 A6 A7 OE BHE BLE I/O15 I/O14 I/O13 I/O12 VSS VCC I/O11 I/O10 I/O9 I/O8 NC A8 A9 A10 A11 NC Product Portfolio Product CY62137EV30-45LL Speed (ns) VCC Range (V) Min Typ[4] Max 2.2 V 3.0 V 3.6 V 45 ns Power Dissipation Operating ICC (mA) f = 1 MHz f = fmax Standby ISB2 (A) Typ[4] Max Typ[4] Max Typ[4] Max 2 2.5 15 20 1 7 Notes 2. NC pins are not connected on the die. 3. Pins D3, H1, G2, H6 and H3 in the VFBGA package are address expansion pins for 4 Mb, 8 Mb, 16 Mb, and 32 Mb and 64 Mb respectively 4. Typical values are included for reference only and are not guaranteed or tested. Typical values are measured at VCC = VCC(typ.), TA = 25 °C Document #: 38-05443 Rev. *D Page 3 of 15 [+] Feedback CY62137EV30 MoBL® Maximum Ratings DC input voltage[5, 6] ...................–0.3 V to (VCC(MAX) + 0.3 V) Exceeding the maximum ratings may impair 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 (VCC(MAX) + 0.3 V) DC voltage applied to outputs in High Z state[5, 6] ......................–0.3 V to (VCC(MAX) + 0.3 V) Output current into outputs (LOW) ............................. 20 mA Static discharge voltage ......................................... > 2001 V (per MIL-STD-883, Method 3015) Latch up current .................................................... > 200 mA Operating Range Device Range Ambient Temperature VCC[7] CY62137EV30-45LL Industrial –40 °C to +85 °C 2.2 V to 3.6 V Electrical Characteristics Over the Operating Range Parameter VOH VOL VIH VIL Description Output HIGH voltage Output LOW voltage Input HIGH voltage Input LOW voltage 45 ns Test Conditions Min Typ[8] Max Unit IOH = –0.1 mA VCC = 2.20 V 2.0 – – V IOH = –1.0 mA VCC = 2.70 V 2.4 – – V IOL = 0.1 mA VCC = 2.20 V – – 0.4 V IOL = 2.1 mA VCC = 2.70 V – – 0.4 V VCC = 2.2 V to 2.7 V 1.8 – VCC + 0.3 V VCC= 2.7 V to 3.6 V 2.2 – VCC + 0.3 V VCC = 2.2 V to 2.7 V –0.3 – 0.6 V VCC= 2.7 V to 3.6 V –0.3 – 0.8 V IIX Input leakage current GND < VI < VCC –1 – +1 A IOZ Output leakage current GND < VO < VCC, Output disabled –1 – +1 A ICC VCC Operating supply current f = fmax = 1/tRC – 15 20 mA – 2.0 2.5 f = 1 MHz VCC = VCCmax IOUT = 0 mA CMOS levels ISB1[9] Automatic CE power-down current — CMOS inputs CE > VCC –0.2 V or (BHE and BLE) > VCC –0.2 V, VIN > VCC – 0.2 V, VIN < 0.2 V),, f = fmax (address and data only), f = 0 (OE and WE), VCC = 3.60 V – 1 7 A ISB2 [9] Automatic CE power-down current — CMOS inputs CE > VCC – 0.2 V or (BHE and BLE) > VCC –0.2 V, VIN > VCC – 0.2 V or VIN < 0.2 V, f = 0, VCC = 3.60 V – 1 7 A Notes 5. VIL(min.) = –2.0 V for pulse durations less than 20 ns. 6. VIH(max)=VCC+0.75 V for pulse durations less than 20 ns. 7. Full device AC operation assumes a 100 s ramp time from 0 to Vcc(min) and 200 s wait time after VCC stabilization. 8. Typical values are included for reference only and are not guaranteed or tested. Typical values are measured at VCC = VCC(typ.), TA = 25 °C. 9. Chip enable (CE) and byte enables (BHE and BLE) need to be tied to CMOS levels to meet the ISB1 / ISB2 / ICCDR specification. Other inputs can be left floating. Document #: 38-05443 Rev. *D Page 4 of 15 [+] Feedback CY62137EV30 MoBL® Capacitance Parameter[10] Description CIN Input capacitance COUT Output capacitance Test Conditions Max TA = 25 °C, f = 1 MHz, VCC = VCC(typ) Unit 10 pF 10 pF Thermal Resistance Parameter[10] Description JA Thermal resistance (junction to ambient) JC Thermal resistance (junction to case) Test Conditions BGA TSOP II Unit Still air, soldered on a 3 × 4.5 inch, two-layer printed circuit board 75 77 C / W 10 13 C / W Figure 1. AC Test Loads and Waveforms R1 VCC OUTPUT 30 pF VCC R2 10% GND Rise Time = 1 V/ns ALL INPUT PULSES 90% 90% 10% Fall Time = 1 V/ns Equivalent to: THÉVENIN EQUIVALENT RTH OUTPUT V INCLUDING JIG AND SCOPE Parameters 2.50 V 3.0 V Unit R1 R2 16667 1103 15385 1554 RTH VTH 8000 645 1.20 1.75 V Data Retention Characteristics (Over the Operating Range) Parameter Conditions VCC for data retention VDR ICCDR Description [12] Data retention current VCC= 1V , CE > VCC – 0.2 V or (BHE and BLE) > VCC –0.2 V, VIN > VCC – 0.2 V or VIN < 0.2 V Min Typ[11] Max Unit 1 – – V – 0.8 3 A tCDR[10] Chip deselect to data retention time 0 – – ns tR[13] Operation recovery time 45 – – ns Data Retention Waveform[14] VCC CE or BHE.BLE VCC(min) tCDR DATA RETENTION MODE VDR > 1.5 V VCC(min) tR Notes 10. Tested initially and after any design or process changes that may affect these parameters. 11. Typical values are included for reference only and are not guaranteed or tested. Typical values are measured at VCC = VCC(typ.), TA = 25 °C 12. Chip enable (CE) and byte enables (BHE and BLE) need to be tied to CMOS levels to meet the ISB1 / ISB2 / ICCDR specification. Other inputs can be left floating. 13. Full device operation requires linear VCC ramp from VDR to VCC(min.) > 100 s or stable at VCC(min.) > 100 s. 14. BHE.BLE is the AND of both BHE and BLE. The chip can be deselected by either disabling the chip enable signals or by disabling both BHE and BLE. Document #: 38-05443 Rev. *D Page 5 of 15 [+] Feedback CY62137EV30 MoBL® Switching Characteristics Over the Operating Range Parameter[15, 16] Description 45 ns Min Max Unit Read Cycle tRC Read cycle time 45 – ns tAA Address to data valid – 45 ns tOHA Data hold from address change 10 – ns tACE CE LOW to data valid – 45 ns tDOE OE LOW to data valid – 22 ns tLZOE OE LOW to LOW Z 5 – ns tHZOE OE HIGH to High Z – 18 ns tLZCE CE LOW to Low Z[17] 10 – ns tHZCE CE HIGH to High Z – 18 ns [17] [17, 18] [17, 18] tPU CE LOW to power-up 0 – ns tPD CE HIGH to power-down – 45 ns tDBE BLE/BHE LOW to data valid – 45 ns tLZBE BLE/BHE LOW to Low Z 5 – ns tHZBE BLE/BHE HIGH to HIGH Z[17, 18] – 18 ns tWC Write cycle time 45 – ns [17] Write Cycle[19] tSCE CE LOW to write end 35 – ns tAW Address setup to write end 35 – ns tHA Address hold from write end 0 – ns tSA Address setup to write start 0 – ns tPWE WE pulse width 35 – ns tBW BLE/BHE LOW to write end 35 – ns tSD Data setup to write end 25 – ns tHD Data hold from write end 0 – ns tHZWE WE LOW to High-Z – 18 ns tLZWE WE HIGH to Low-Z 10 – ns [17, 18] [17] Notes 15. Test conditions for all parameters other than tri-state parameters assume signal transition time of 3 ns (1V/ns) or less, timing reference levels of VCC(typ)/2, input pulse levels of 0 to VCC(typ.), and output loading of the specified IOL/IOH as shown in AC Test Loads and Waveforms. 16. AC timing parameters are subject to byte enable signals (BHE or BLE) not switching when chip is disabled. Refer application note, AN13842 for more information. 17. At any given temperature and voltage condition, tHZCE is less than tLZCE, tHZBE is less than tLZBE, tHZOE is less than tLZOE, and tHZWE is less than tLZWE for any given device. 18. tHZOE, tHZCE, tHZBE, and tHZWE transitions are measured when the outputs enter a high impedance state. 19. The internal write time of the memory is defined by the overlap of WE, CE = VIL, BHE and BLE = VIL. 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 should be referenced to the edge of the signal that terminates the write. Document #: 38-05443 Rev. *D Page 6 of 15 [+] Feedback CY62137EV30 MoBL® Switching Waveforms Figure 2. Read Cycle 1: Address Transition Controlled [20, 21] tRC ADDRESS tOHA DATA OUT tAA DATA VALID PREVIOUS DATA VALID Figure 3. Read Cycle No. 2: OE Controlled [21, 22] ADDRESS tRC CE tPD tHZCE tACE OE tHZOE tDOE BHE/BLE tLZOE tHZBE tDBE tLZBE DATA OUT HIGH IMPEDANCE HIGH IMPEDANCE DATA VALID tLZCE VCC SUPPLY CURRENT tPU 50% 50% ICC ISB Notes 20. The device is continuously selected. OE, CE = VIL, BHE and BLE = VIL. 21. WE is HIGH for read cycle. 22. Address valid prior to or coincident with CE and BHE, BLE transition LOW. Document #: 38-05443 Rev. *D Page 7 of 15 [+] Feedback CY62137EV30 MoBL® Switching Waveforms (continued) Figure 4. Write Cycle No. 1: WE Controlled [23, 24, 25] tWC ADDRESS tSCE CE tAW tHA tSA WE tPWE tBW BHE/BLE OE tSD DATA I/O NOTE 26 tHD DATAIN tHZOE Figure 5. Write Cycle No. 2: CE Controlled [23, 24, 25] tWC ADDRESS tSCE CE tSA tAW tHA tPWE WE tBW BHE/BLE OE tSD DATA I/O tHD DATAIN NOTE 26 tHZOE Notes 23. The internal write time of the memory is defined by the overlap of WE, CE = VIL, BHE and BLE = VIL. 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 should be referenced to the edge of the signal that terminates the write 24. Data I/O is high impedance if OE = VIH. 25. If CE goes HIGH simultaneously with WE = VIH, the output remains in a high impedance state. 26. During this period, the I/Os are in output state and input signals should not be applied. Document #: 38-05443 Rev. *D Page 8 of 15 [+] Feedback CY62137EV30 MoBL® Switching Waveforms (continued) Figure 6. Write Cycle No. 3: WE Controlled, OE LOW [27] tWC ADDRESS tSCE CE tBW BHE/BLE tAW tHA tSA tPWE WE tSD DATAI/O NOTE 28 tHD DATAIN tHZWE tLZWE Figure 7. Write Cycle No. 4: BHE/BLE Controlled, OE LOW [27] tWC ADDRESS CE tSCE tAW tHA tBW BHE/BLE tSA tPWE WE tHZWE DATA I/O NOTE 28 tSD tHD DATAIN tLZWE Notes 27. If CE goes HIGH simultaneously with WE = VIH, the output remains in a high impedance state. 28. During this period, the I/Os are in output state and input signals should not be applied. Document #: 38-05443 Rev. *D Page 9 of 15 [+] Feedback CY62137EV30 MoBL® Truth Table CE WE OE H BHE BLE X X Power High Z Deselect/power-down Standby (ISB) Data out (I/OO–I/O15) Read Active (ICC) Data out (I/OO–I/O7); I/O8–I/O15 in High Z Read Active (ICC) H Data out (I/O8–I/O15); I/O0–I/O7 in High Z Read Active (ICC) L L High Z Output disabled Active (ICC) H L High Z Output disabled Active (ICC) L H High Z Output disabled Active (ICC) X L L Data in (I/OO–I/O15) Write Active (ICC) L X H L Data in (I/OO–I/O7); I/O8–I/O15 in High Z Write Active (ICC) L X L H Data in (I/O8–I/O15); I/O0–I/O7 in High Z Write Active (ICC) X X H H L H L L L L H L H L L H L L L H H L H H L H H L L L L [29] High Z Mode Standby (ISB) X X Inputs/Outputs Deselect/power-down X [29] [29] Note 29. Chip enable (CE) and Byte enables (BHE / BLE) must be at fixed CMOS levels (not floating). Intermediate voltage levels on these pins is not permitted Document #: 38-05443 Rev. *D Page 10 of 15 [+] Feedback CY62137EV30 MoBL® Ordering Information Speed (ns) Package Diagram Ordering Code Package Type 45 CY62137EV30LL-45BVXI 51-85150 48-Ball Very Fine Pitch BGA (6 mm × 8mm × 1 mm) (Pb-free) 45 CY62137EV30LL-45ZSXI 51-85087 44-Pin TSOP II (Pb-free) Operating Range Industrial Ordering Code Definition CY 621 3 7E V30 LL 45 XXX X Temperature Grades I = Industrial Package Type BVX: VFBGA (Pb-free) ZSX : TSOP II (Pb-free) Speed Grade Low Power Voltage Range = 3 V typical Bus Width = x16 E = 90nm Technology Density = 2 Mbit MoBL SRAM Family Company ID: CY = Cypress Document #: 38-05443 Rev. *D Page 11 of 15 [+] Feedback CY62137EV30 MoBL® Package Diagrams Figure 8. 48-Pin VFBGA (6 x 8 x 1 mm) (51-85150) 51-85150-*F Document #: 38-05443 Rev. *D Page 12 of 15 [+] Feedback CY62137EV30 MoBL® Package Diagrams (continued) Figure 9. 44-Pin TSOP II (51-85087) 51-85087-*C Acronyms Document Conventions Description Units of Measure CMOS complementary metal oxide semiconductor Symbol I/O input/output SRAM Acronym Unit of Measure °C degrees Celsius static random access memory A microamperes VFBGA very fine ball gird array mA milliampere TSOP thin small outline package MHz megahertz Document #: 38-05443 Rev. *D ns nanoseconds pF picofarads V volts ohms W watts Page 13 of 15 [+] Feedback CY62137EV30 MoBL® Document History Page Document Title: CY62137EV30 MoBL® 2-Mbit (128K x 16) Static RAM Document Number: 38-05443 Rev. ECN No. Orig. of Change Submission Date ** 203720 AJU See ECN New Data Sheet *A 234196 AJU See ECN Changed ICC MAX at f=1MHz from 1.7 mA to 2.0 mA Changed ICC TYP from 12 mA (35 ns speed bin) and 10 mA (45 ns speed bin) to 15 mA and 12 mA respectively Changed ICC MAX from 20 mA (35 ns speed bin) and 15 mA (45 ns speed bin) to 25 mA and 20 mA respectively Changed ISB1 and ISB2 TYP from 0.6 A to 0.7 A Changed ISB1 and ISB2 MAX from 1.5 A to 2.5 A Changed ICCDR from 1 A to 2 A Fixed typos on TSOP II pinout: Pin 18-22: address lines Pin 23: NC Added Pb-free information *B 427817 NXR See ECN Converted from Advanced Information to Final. Removed 35 ns Speed Bin Removed “L” version Changed ball E3 from DNU to NC. Removed the redundant footnote on DNU. Moved Product Portfolio from Page # 3 to Page #2. Changed ICC (Max) value from 2 mA to 2.5 mA and ICC (Typ) value from 1.5 mA to 2 mA at f=1 MHz Changed ICC (Typ) value from 12 mA to 15 mA at f = fmax=1/tRC Changed ISB1 and ISB2 Typ. values from 0.7 A to 1 A and Max. values from 2.5 A to 7 A. Changed VCC stabilization time in footnote #7 from 100 s to 200 s Changed the AC test load capacitance from 50pF to 30pF on Page# 4 Changed VDR from 1.5V to 1V on Page# 4. Changed ICCDR from 2 A to 3 A. Added ICCDR typical value. Corrected tR in Data Retention Characteristics from 100 s to tRC ns Changed tOHA , tLZCE and tLZWE from 6 ns to 10 ns Changed tLZBE from 6 ns to 5 ns Changed tLZOE from 3 ns to 5 ns Changed tHZOE, tHZCE, tHZBE and tHZWE from 15 ns to 18 ns Changed tSCE,tAW and tBW from 40 ns to 35 ns Changed tPWE from 30 ns to 35 ns Changed tSD from 20 ns to 25 ns Updated the Ordering Information table and replaced the Package Name column with Package Diagram. *C 2604685 VKN/PYRS 11/12/08 Added footnote 8 related to ISB2 and ICCDR Added footnote 13 related to AC timing parameters *D 3143896 RAME 01/17/2011 Added Acronyms and Units of Measure table Added Ordering Code Definition Added TOC Converted all tablenote to footnotes Updated Package Diagrams 51-85150 from *D to *F Document #: 38-05443 Rev. *D Description of Change Page 14 of 15 [+] Feedback CY62137EV30 MoBL® Sales, Solutions, and Legal Information Worldwide Sales and Design Support Cypress maintains a worldwide network of offices, solution centers, manufacturer’s representatives, and distributors. To find the office closest to you, visit us at cypress.com/sales. Products Automotive Clocks & Buffers Interface Lighting & Power Control PSoC Solutions cypress.com/go/automotive psoc.cypress.com/solutions cypress.com/go/clocks PSoC 1 | PSoC 3 | PSoC 5 cypress.com/go/interface cypress.com/go/powerpsoc cypress.com/go/plc Memory Optical & Image Sensing PSoC Touch Sensing USB Controllers Wireless/RF cypress.com/go/memory cypress.com/go/image cypress.com/go/psoc cypress.com/go/touch cypress.com/go/USB cypress.com/go/wireless © Cypress Semiconductor Corporation, 2008-2011. The information contained herein is subject to change without notice. Cypress Semiconductor 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 with 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 subject to worldwide patent protection (United States and foreign), United States copyright laws and international 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 support 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 representation 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 the 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 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’ product 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. Document #: 38-05443 Rev. *D Revised January 17, 2011 Page 15 of 15 All products and company names mentioned in this document may be the trademarks of their respective holders. [+] Feedback