CY7C1041L-25VC

CY7C1041 256K x 16 Static RAM Features • High speed — tAA = 15 ns • Low active power — 1430 mW (max.) • Low CMOS standby power (L version) — 2.75 mW (max.) • 2.0V Data Retention (400 µW at 2.0V retention) • Automatic power-down when deselected • TTL-compatible inputs and outputs • Easy memory expansion with CE and OE features 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/O 8 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/O 7. If Byte High Enable (BHE) is LOW, then data from memory will appear on I/O 8 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/O 0 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 CY7C1041 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. Functional Description The CY7C1041 is a high-performance CMOS static RAM organized as 262,144 words by 16 bits. 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/O 7), is Logic Block Diagram INPUT BUFFER Pin Configuration SOJ TSOP II Top View 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 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 A0 A1 A2 A3 A4 A5 A6 A7 A8 256K x 16 ARRAY 1024 x 4096 I/O0 – I/O7 I/O8 – I/O15 COLUMN DECODER BHE WE CE OE BLE 1041–1 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 1041–2 ROW DECODER Selection Guide 7C1041-12 Maximum Access Time (ns) Maximum Operating Current (mA) Maximum CMOS Standby Current Com’l (mA) Com’l Ind’l Shaded areas contain preliminary information. A9 A10 A 11 A 12 A 13 A14 A15 A16 A17 SENSE AMPS 7C1041-15 15 260 3 0.5 6 7C1041-17 17 250 3 0.5 6 7C1041-20 20 230 3 0.5 6 7C1041-25 25 220 3 0.5 6 12 280 3 L 0.5 6 Cypress Semiconductor Corporation • 3901 North First Street • San Jose • CA 95134 • 408-943-2600 October 4, 1999 CY7C1041 Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested.) 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 +7.0V DC Voltage Applied to Outputs in High Z State[1] .................................... –0.5V to VCC + 0.5V DC Input Voltage[1] ................................ –0.5V to VCC + 0.5V Current into Outputs (LOW)......................................... 20 mA Operating Range Range Commercial Industrial Ambient Temperature[2] 0°C to +70°C –40°C to +85°C VCC 5V ± 0.5 Electrical Characteristics Over the Operating Range 7C1041-12 Parameter VOH VOL VIH VIL IIX IOZ ICC ISB1 Description Output HIGH Voltage Output LOW Voltage Input HIGH Voltage Input LOW Voltage[1] Input Load Current Output Leakage Current VCC Operating Supply Current Automatic CE Power-Down Current — TTL Inputs Automatic CE Power-Down Current — CMOS Inputs GND < VI < VCC GND < VOUT < VCC, Output Disabled VCC = Max., f = fMAX = 1/tRC Max. V CC, CE > VIH VIN > V IH or VIN < V IL, f = fMAX Max. V CC, CE > V CC – 0.3V, VIN > V CC – 0.3V, or V IN < 0.3V, f = 0 Com ’l Com ’l Ind’l L Test Conditions VCC = Min., IOH = –4.0 mA VCC = Min., IOL = 8.0 mA 2.2 –0.5 –1 –1 Min. 2.4 0.4 VCC + 0.5 0.8 +1 +1 280 40 2.2 –0.5 –1 –1 Max. 7C1041-15 Min. 2.4 0.4 VCC + 0.5 0.8 +1 +1 260 40 2.2 –0.5 –1 –1 Max. 7C1041-17 Min. 2.4 0.4 VCC + 0.5 0.8 +1 +1 250 40 Max. Unit V V V V µA µA mA mA ISB2 3 0.5 6 3 0.5 6 3 0.5 6 mA mA mA Shaded areas contain preliminary information. Notes: 1. VIL (min.) = –2.0V for pulse durations of less than 20 ns. 2. TA is the case temperature. 2 CY7C1041 Electrical Characteristics Over the Operating Range (continued) Test Conditions Parameter VOH VOL VIH VIL IIX IOZ ICC ISB1 Description Output HIGH Voltage Output LOW Voltage Input HIGH Voltage Input LOW Voltage[1] Input Load Current Output Leakage Current VCC O perating Supply Current Automatic CE Power-Down Current — TTL Inputs Automatic CE Power-Down Current — CMOS Inputs GND < VI < VCC GND < VOUT < VCC, Output Disabled VCC = Max., f = fMAX = 1/tRC Max. VCC, CE > VIH VIN > VIH or VIN < VIL, f = fMAX Max. VCC, CE > VCC – 0.3V, VIN > VCC – 0.3V, or VIN < 0.3V, f = 0 Com’l Com’l Ind’l L VCC = Min., IOH = –4.0 mA VCC = Min., IOL = 8.0 mA 2.2 –0.5 –1 –1 7C1041-20 Min. 2.4 0.4 VCC + 0.5 0.8 +1 +1 230 40 2.2 –0.5 –1 –1 Max. 7C1041-25 Min. 2.4 0.4 VCC + 0.5 0.8 +1 +1 220 40 Max. Unit V V V V µA µA mA mA ISB2 3 0.5 6 3 0.5 6 mA mA mA Capacitance[3] Parameter CIN COUT Description Input Capacitance I/O Capacitance Test Conditions TA = 25°C, f = 1 MHz, VCC = 5.0V Max. 8 8 Unit pF pF Note: 3. Tested initially and after any design or process changes that may affect these parameters. AC Test Loads and Waveforms 5V OUTPUT 30 pF INCLUDING JIG AND SCOPE (a) R2 255Ω R1 481 Ω 5V OUTPUT 5 pF INCLUDING JIG AND SCOPE (b) R2 255Ω GND ≤ 3 ns R1 481 Ω ALL INPUT PULSES 3.0V 90% 10% 90% 10% ≤ 3 ns 1041–3 1041–4 Equivalent to: THÉVENIN EQUIVALENT 167Ω 1.73V OUTPUT 3 CY7C1041 Switching Characteristics[4] Over the Operating Range 7C1041-12 Parameter READ CYCLE tRC tAA tOHA tACE tDOE tLZOE tHZOE tLZCE tHZCE tPU tPD tDBE tLZBE tHZBE tWC tSCE tAW tHA tSA tPWE tSD tHD tLZWE tHZWE tBW Read Cycle Time Address to Data Valid Data Hold from Address Change CE LOW to Data Valid OE LOW to Data Valid OE LOW to Low Z OE HIGH to High Z CE HIGH to High Z [5, 6] 7C1041-15 Min. 15 Max. 7C1041-17 Min. 17 Max. Unit ns 17 3 17 7 0 7 3 7 0 17 7 0 7 17 14 14 0 0 14 8 0 3 ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns 7 12 ns ns Description Min. 12 Max. 12 3 12 6 0 6 3 6 0 12 6 0 6 12 10 10 0 0 10 7 0 3 6 10 12 15 12 12 0 0 12 8 0 3 0 0 3 0 3 15 15 7 7 7 15 7 7 CE LOW to Low Z[6] [5, 6] CE LOW to Power-Up CE HIGH to Power-Down Byte Enable to Data Valid Byte Enable to Low Z Byte Disable to High Z [7, 8] WRITE CYCLE Write Cycle Time CE LOW to Write End Address Set-Up to Write End Address Hold from Write End Address Set-Up to Write Start WE Pulse Width Data Set-Up to Write End Data Hold from Write End WE HIGH to Low Z[6] WE LOW to High Z [5, 6] 7 Byte Enable to End of Write Shaded areas contain preliminary information. 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, t HZCE 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. 4 CY7C1041 Switching Characteristics[4] Over the Operating Range (continued) 7C1041-20 Parameter READ CYCLE tRC tAA tOHA tACE tDOE tLZOE tHZOE tLZCE tHZCE tPU tPD tDBE tLZBE tHZBE tWC tSCE tAW tHA tSA tPWE tSD tHD tLZWE tHZWE tBW Read Cycle Time Address to Data Valid Data Hold from Address Change CE LOW to Data Valid OE LOW to Data Valid OE LOW to Low Z OE HIGH to High Z CE HIGH to High Z [5, 6] 7C1041-25 Min. 25 Max. Unit ns 25 5 25 10 0 8 10 5 8 10 0 25 10 0 8 10 25 15 15 0 0 15 10 0 5 8 10 15 ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns Description Min. 20 Max. 20 3 20 8 0 3 0 20 8 0 CE LOW to Low Z[6] [5, 6] CE LOW to Power-Up CE HIGH to Power-Down Byte Enable to Data Valid Byte Enable to Low Z Byte Disable to High Z Write Cycle Time CE LOW to Write End Address Set-Up to Write End Address Hold from Write End Address Set-Up to Write Start WE Pulse Width Data Set-Up to Write End Data Hold from Write End WE HIGH to Low Z [6] WRITE CYCLE[7, 8] 20 13 13 0 0 13 9 0 3 13 WE LOW to High Z[5, 6] Byte Enable to End of Write Data Retention Characteristics Over the Operating Range Parameter VDR ICCDR Description VCC for Data Retention Data Retention Current Com ’l L VCC = VDR = 2.0V, CE > VCC – 0.3V, VIN > VCC – 0.3V or VIN < 0.3V 0 See Note 9 Conditions[10] Min. 2.0 Max. Unit V µA 200 µA µA tCDR[3] tR[9] Chip Deselect to Data Retention Time Operation Recovery Time ns Notes: 9. t r < 100 µs for all speeds. 10. No input may exceed VCC + 0 .5V. 5 CY7C1041 Data Retention Waveform DATA RETENTION MODE VCC 3.0V tCDR CE 1041–5 VDR > 2V 3.0V tR Switching Waveforms Read Cycle No.1 [11, 12] tRC ADDRESS tAA tOHA DATA OUT PREVIOUS DATA VALID DATA VALID 1041-6 Read Cycle No.2 (OE Controlled) ADDRESS [12, 13] tRC CE tACE OE BHE, BLE tDOE tLZOE tDBE tLZBE HIGH IMPEDANCE tLZCE V CC SUPPLY CURRENT tPU 50% tHZCE tHZBE DATA VALID tPD 50% IISB SB 1041-7 tHZOE HIGH IMPEDANCE DATA OUT IICC CC 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. 6 CY7C1041 Switching Waveforms (continued) Write Cycle No. 1 (CE Controlled) [14, 15] tWC ADDRESS CE tSA tSCE tAW tPWE WE tBW BHE, BLE tSD DATAI/O tHD tHA 1041-8 Write Cycle No. 2 (BLE or BHE Controlled) tWC ADDRESS BHE, BLE tSA tBW tAW tPWE WE tSCE CE tSD DATAI/O tHD tHA 1041-9 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. 7 CY7C1041 Switching Waveforms (continued) Write Cycle No. 3 (WE Controlled, LOW) tWC ADDRESS CE tSCE tAW tSA tPWE tHA WE tBW BHE, BLE tHZWE DATA I/O tLZWE tSD tHD 1041-10 Truth Table CE H L L L L L L L OE X L L L X X X H WE X H H H L L L H BLE X L L H L L H X BHE X L H L L H L X I/O0–I/O7 High Z Data Out Data Out High Z Data In Data In High Z High Z I/O8–I/O15 High Z Data Out High Z Data Out Data In High Z Data In High Z Power Down Read All Bits Read Lower Bits Only Read Upper Bits Only Write All Bits Write Lower Bits Only Write Upper Bits Only Selected, Outputs Disabled Mode Power Standby (ISB) Active (ICC) Active (ICC) Active (ICC) Active (ICC) Active (ICC) Active (ICC) Active (ICC) 8 CY7C1041 Ordering Information Speed (ns) 15 Ordering Code CY7C1041-15VC CY7C1041L-15VC CY7C1041-15ZC CY7C1041L-15ZC 17 CY7C1041-17VC CY7C1041L-17VC CY7C1041-17ZC CY7C1041L-17ZC 20 CY7C1041-20VC CY7C1041L-20VC CY7C1041-20ZC CY7C1041L-20ZC 25 CY7C1041-25VC CY7C1041L-25VC CY7C1041-25ZC CY7C1041L-25ZC 15 17 20 25 CY7C1041-15ZI CY7C1041-15VI CY7C1041-17ZI CY7C1041-17VI CY7C1041-20ZI CY7C1041-20VI CY7C1041-25ZI CY7C1041-25VI Document #: 38-00644-B Package Name V34 V34 Z44 Z44 V34 V34 Z44 Z44 V34 V34 Z44 Z44 V34 V34 Z44 Z44 Z44 V34 V34 Z44 Z44 Z44 Z44 Z44 Package Type 44-Lead (400-Mil) Molded SOJ 44-Lead (400-Mil) Molded SOJ 44-Lead TSOP Type II 44-Lead TSOP Type II 44-Lead (400-Mil) Molded SOJ 44-Lead (400-Mil) Molded SOJ 44-Lead TSOP Type II 44-Lead TSOP Type II 44-Lead (400-Mil) Molded SOJ 44-Lead (400-Mil) Molded SOJ 44-Lead TSOP Type II 44-Lead TSOP Type II 44-Lead (400-Mil) Molded SOJ 44-Lead (400-Mil) Molded SOJ 44-Lead TSOP Type II 44-Lead TSOP Type II 44-Lead TSOP Type II 44-Lead (400-Mil) Molded SOJ 44-Lead TSOP Type II 44-Lead (400-Mil) Molded SOJ 44-Lead TSOP Type II 44-Lead (400-Mil) Molded SOJ 44-Lead TSOP Type II 44-Lead (400-Mil) Molded SOJ Industrial Operating Range Commercial 9 CY7C1041 Package Diagrams 44-Lead (400-Mil) Molded SOJ V34 51-85082-B 44-Pin TSOP II Z44 51-85087-A © Cypress Semiconductor Corporation, 1999. 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 Semiconductor product. Nor does it convey or imply any license under patent or other rights. Cypress Semiconductor 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 Semiconductor products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress Semiconductor against all charges.