1CY7C1041BNV33 CY7C1041BNV33 256K x 16 Static RAM Features Functional Description • High speed The CY7C1041BNV33 is a high-performance CMOS Static RAM organized as 262,144 words by 16 bits. — tAA = 12 ns • Low active power — 612 mW (max.) • Low CMOS standby power (Commercial L version) — 1.8 mW (max.) • 2.0V Data Retention (660 µW at 2.0V retention) • Automatic power-down when deselected • TTL-compatible inputs and outputs • Easy memory expansion with CE and OE features Writing to the device is accomplished by taking 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 A17). 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 A17). Reading from the device is accomplished by taking 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 will appear on I/O0 to I/O7. If Byte High Enable (BHE) is LOW, then data from memory will appear on I/O8 to I/O15. See the truth table at the back of this data sheet for a complete description of read and write modes. The input/output pins (I/O0 through I/O15) are placed in a high-impedance state when the device is deselected (CE HIGH), the outputs are disabled (OE HIGH), the BHE and BLE are disabled (BHE, BLE HIGH), or during a write operation (CE LOW, and WE LOW). The CY7C1041BNV33 is available in a standard 44-pin 400-mil-wide body width SOJ and 44-pin TSOP II package with center power and ground (revolutionary) pinout. Logic Block Diagram Pin Configuration SOJ TSOP II Top View 256K x 16 ARRAY 1024 x 4096 SENSE AMPS A0 A1 A2 A3 A4 A5 A6 A7 A8 ROW DECODER INPUT BUFFER A0 A1 A2 A3 A4 CE I/O0 I/O1 I/O2 I/O3 VCC VSS I/O4 I/O5 I/O6 I/O7 WE A5 A6 A7 A8 A9 I/O0 – I/O7 I/O8 – I/O15 A9 A10 A 11 A 12 A 13 A14 A15 A16 A17 COLUMN DECODER BHE WE CE OE BLE Cypress Semiconductor Corporation Document #: 001-06434 Rev. ** • 198 Champion Court • 1 44 2 3 43 42 4 41 40 39 38 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 A17 A16 A15 OE BHE BLE I/O15 I/O14 I/O13 I/O12 VSS VCC I/O11 I/O10 I/O9 I/O8 NC A14 A13 A12 A11 A10 San Jose, CA 95134-1709 • 408-943-2600 Revised February 1, 2006 [+] Feedback CY7C1041BNV33 Selection Guide -12 Maximum Access Time (ns) Maximum Operating Current (mA) 12 15 190 170 Ind’l - 190 Com’l/Ind’l 8 8 0.5 0.5 Comm’l Maximum CMOS Standby Current (mA) -15 Com’l L DC Input Voltage[1] ................................ –0.5V to VCC + 0.5V Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested.) Current into Outputs (LOW)......................................... 20 mA Operating Range Storage Temperature ................................. –65°C to +150°C Ambient Temperature with Power Applied............................................. –55°C to +125°C Supply Voltage on VCC to Relative GND[1] .... –0.5V to +4.6V DC Voltage Applied to Outputs in High Z State[1] ....................................–0.5V to VCC + 0.5V Range Ambient Temperature[2] VCC 0°C to +70°C 3.3V ± 0.3V Commercial Industrial –40°C to +85°C Electrical Characteristics Over the Operating Range -12 Parameter Description Test Conditions VOH Output HIGH Voltage VCC = Min., IOH = –4.0 mA VOL Output LOW Voltage VCC = Min., IOL = 8.0 mA Min. -15 Max. 2.4 Min. Max. Unit 2.4 0.4 V 0.4 V VIH Input HIGH Voltage 2.2 VCC+0.5 2.2 VCC+0.5 V VIL Input LOW Voltage[1] –0.5 0.8 –0.5 0.8 V IIX Input Leakage Current GND < VI < VCC –1 +1 –1 +1 mA IOZ Output Leakage Current GND < VOUT < VCC, Output Disabled –1 +1 –1 +1 mA ICC VCC Operating Supply Current VCC = Max., f = fMAX = 1/tRC 190 170 mA - 190 mA Comm’l Ind’l ISB1 Automatic CE Power-Down Max. VCC, CE > VIH Current —TTL Inputs VIN > VIH or VIN < VIL, f = fMAX 40 40 mA ISB2 Automatic CE Power-Down Max. VCC, CE > VCC – 0.3V, Com’l/Ind’l Current —CMOS Inputs VIN > VCC – 0.3V,or Com’l L VIN < 0.3V, f = 0 8 8 mA 0.5 0.5 mA Capacitance[3] Parameter Description CIN Input Capacitance COUT I/O Capacitance Test Conditions Max. TA = 25°C, f = 1 MHz, VCC = 3.3V Unit 8 pF 8 pF AC Test Loads and Waveforms R1 317Ω 3.3V ALL INPUT PULSES THÉVENIN EQUIVALENT 3.3V 167Ω OUTPUT R2 351Ω 30 pF INCLUDING JIG AND SCOPE 90% 1.73V OUTPUT (b) GND Rise time: 1 V/ns (a) 10% 90% 10% Fall time: 1 V/ns Notes: 1. VIL (min.) = –2.0V for pulse durations of less than 20 ns. 2. TA is the “Instant On” case temperature. 3. Tested initially and after any design or process changes that may affect these parameters. Document #: 001-06434 Rev. ** Page 2 of 8 [+] Feedback CY7C1041BNV33 Switching Characteristics[4] Over the Operating Range -12 Parameter Description Min. -15 Max. Min. Max. Unit READ CYCLE tRC Read Cycle Time 12 tAA Address to Data Valid tOHA Data Hold from Address Change 15 12 ns 15 3 3 ns ns tACE CE LOW to Data Valid 12 15 ns tDOE OE LOW to Data Valid 6 7 ns tLZOE OE LOW to Low Z 0 [5, 6] OE HIGH to High Z tHZOE [6] tLZCE CE LOW to Low Z tHZCE CE HIGH to High Z[5, 6] tPU CE LOW to Power-Up tPD CE HIGH to Power-Down tDBE Byte Enable to Data Valid tLZBE Byte Enable to Low Z 6 3 ns 7 ns 7 ns 3 6 0 ns 0 12 6 0 Byte Disable to High Z tHZBE 0 ns 15 ns 7 ns 0 6 ns 7 ns [7, 8] WRITE CYCLE tWC Write Cycle Time 12 15 ns tSCE CE LOW to Write End 10 12 ns tAW Address Set-Up to Write End 10 12 ns tHA Address Hold from Write End 0 0 ns tSA Address Set-Up to Write Start 0 0 ns tPWE WE Pulse Width 10 12 ns tSD Data Set-Up to Write End 7 8 ns tHD Data Hold from Write End 0 0 ns [6] tLZWE WE HIGH to Low Z tHZWE WE LOW to High Z[5, 6] tBW Byte Enable to End of Write 3 3 6 ns 7 10 12 ns ns Data Retention Characteristics Over the Operating Range (For L version only) Parameter VDR tR[9] Conditions[10] VCC for Data Retention ICCDR tCDR Description [3] Data Retention Current Chip Deselect to Data Retention Time Operation Recovery Time Min. Max. 2.0 VCC = VDR = 2.0V, CE > VCC – 0.3V, VIN > VCC – 0.3V or VIN < 0.3V Unit V 330 µA 0 ns tRC ns Notes: 4. Test conditions assume signal transition time of 3 ns or less, timing reference levels of 1.5V, input pulse levels of 0 to 3.0V, and output loading of the specified IOL/IOH and 30-pF load capacitance. 5. tHZOE, tHZCE, and tHZWE are specified with a load capacitance of 5 pF as in part (b) of AC Test Loads. Transition is measured ±500 mV from steady-state voltage. 6. At any given temperature and voltage condition, tHZCE is less than tLZCE, tHZOE is less than tLZOE, and tHZWE is less than tLZWE for any given device. 7. The internal write time of the memory is defined by the overlap of CE LOW, and WE LOW. CE and WE must be LOW to initiate a write, and the transition of either of these signals can terminate the write. The input data set-up and hold timing should be referenced to the leading edge of the signal that terminates the write. 8. The minimum write cycle time for Write Cycle No. 3 (WE controlled, OE LOW) is the sum of tHZWE and tSD. 9. tr < 3 ns for the -12 and -15 speeds. 10. No input may exceed VCC + 0.5V. Document #: 001-06434 Rev. ** Page 3 of 8 [+] Feedback CY7C1041BNV33 Data Retention Waveform DATA RETENTION MODE 3.0V VCC VDR > 2V 3.0V tR tCDR CE Switching Waveforms Read Cycle No. 1[11, 12] tRC ADDRESS tAA tOHA DATA OUT PREVIOUS DATA VALID DATA VALID Read Cycle No. 2 (OE Controlled)[12, 13] ADDRESS tRC CE tACE OE tHZOE tDOE BHE, BLE tLZOE tHZCE tDBE tLZBE DATA OUT HIGH IMPEDANCE tLZCE VCC SUPPLY CURRENT tHZBE HIGH IMPEDANCE DATA VALID tPD tPU 50% 50% ICC ISB Notes: 11. Device is continuously selected. OE, CE, BHE and/or BHE = VIL. 12. WE is HIGH for read cycle. 13. Address valid prior to or coincident with CE transition LOW. Document #: 001-06434 Rev. ** Page 4 of 8 [+] Feedback CY7C1041BNV33 Switching Waveforms (continued) Write Cycle No. 1 (CE Controlled)[14, 15] tWC ADDRESS CE tSA tSCE tAW tHA tPWE WE tBW BHE, BLE tSD tHD DATAI/O Write Cycle No. 2 (BLE or BHE Controlled) tWC ADDRESS BHE, BLE tSA tBW tAW tHA tPWE WE tSCE CE tSD tHD DATAI/O Notes: 14. Data I/O is high-impedance if OE or BHE and/or BLE= VIH. 15. If CE goes HIGH simultaneously with WE going HIGH, the output remains in a high–impedance state. Document #: 001-06434 Rev. ** Page 5 of 8 [+] Feedback CY7C1041BNV33 Switching Waveforms (continued) Write Cycle No. 3 (WE Controlled, OE LOW) tWC ADDRESS tSCE CE tAW tHA tSA tPWE WE tBW BHE, BLE tHZWE tSD tHD DATA I/O tLZWE Truth Table CE OE WE BLE BHE H L I/O0–I/O7 I/O8–I/O15 Mode Power X X X X High Z High Z Power Down Standby (ISB) L H L L Data Out Data Out Read All Bits Active (ICC) L L H L H Data Out High Z Read Lower Bits Only Active (ICC) L L H H L High Z Data Out Read Upper Bits Only Active (ICC) L X L L L Data In Data In Write All Bits Active (ICC) L X L L H Data In High Z Write Lower Bits Only Active (ICC) L X L H L High Z Data In Write Upper Bits Only Active (ICC) L H H X X High Z High Z Selected, Outputs Disabled Active (ICC) Ordering Information Speed (ns) 12 15 Ordering Code CY7C1041BNV33-12VXC CY7C1041BNV33L-12VXC CY7C1041BNV33L-12VC CY7C1041BNV33L-12ZC CY7C1041BNV33L-12ZXC CY7C1041BNV33-15VXC CY7C1041BNV33L-15VXC CY7C1041BNV33L-15ZXC CY7C1041BNV33-15VXI Package Diagram 51-85082 51-85082 51-85082 51-85087 51-85087 51-85082 51-85082 51-85087 51-85082 Package Type 44-Lead (400-Mil) Molded SOJ (Pb-free) 44-Lead (400-Mil) Molded SOJ (Pb-free) 44-Lead (400-Mil) Molded SOJ 44-Pin TSOP II Z44 44-Pin TSOP II Z44 (Pb-free) 44-Lead (400-Mil) Molded SOJ (Pb-free) 44-Lead (400-Mil) Molded SOJ (Pb-free) 44-Pin TSOP II Z44 (Pb-free) 44-Lead (400-Mil) Molded SOJ (Pb-free) Operating Range Commercial Commercial Industrial Please contact local sales representative regarding availability of these parts. Document #: 001-06434 Rev. ** Page 6 of 8 [+] Feedback CY7C1041BNV33 Package Diagrams 44-Lead (400-Mil) Molded SOJ (51-85082) 51-85082-*B 44-Pin TSOP II (51-85087) 51-85087-*A All product and company names mentioned in this document may be the trademarks of their respective holders. Document #: 001-06434 Rev. ** Page 7 of 8 © Cypress Semiconductor Corporation, 2006. 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. [+] Feedback CY7C1041BNV33 Document History Page Document Title: CY7C1041BNV33 256K x 16 Static RAM Document Number: 001-06434 REV. ECN NO. Issue Date Orig. of Change ** 423877 See ECN NXR Document #: 001-06434 Rev. ** Description of Change New Data Sheet Page 8 of 8 [+] Feedback