CY7C1020-20VC

7C10 CY7C1020 32K x 16 Static RAM Features • 5.0V operation (± 10%) • High speed — tAA = 10 ns • Low active power — 825 mW (max., 10 ns, “L” version) • Very Low standby power — 550 µW (max., “L” version) • Automatic power-down when deselected • Independent Control of Upper and Lower bytes • Available in 44-pin TSOP II and 400-mil SOJ (BLE) is LOW, then data from I/O pins (I/O 1 through I/O8), is written into the location specified on the address pins (A0 through A14). If Byte High Enable (BHE) is LOW, then data from I/O pins (I/O 9 through I/O16) is written into the location specified on the address pins (A0 through A14). 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/O1 to I/O 8. If Byte High Enable (BHE) is LOW, then data from memory will appear on I/O 9 to I/O16. 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 1 through I/O16) 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 CY7C1020 is available in standard 44-pin TSOP type II and 400-mil-wide SOJ packages. Functional Description The CY7C1020 is a high-performance CMOS static RAM organized as 32,768 words by 16 bits. This device has an automatic power-down feature that significantly reduces power consumption when deselected. Writing to the device is accomplished by taking Chip Enable (CE) and Write Enable (WE) inputs LOW. If Byte Low Enable Logic Block Diagram DATA IN DRIVERS Pin Configuration SOJ / TSOP II Top View NC A 14 A 13 A 12 A11 CE I/O1 I/O2 I/O3 I/O4 VCC VSS I/O5 I/O6 I/O7 I/O8 WE A10 A9 A8 A7 NC 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 A6 A5 A4 A3 A2 A1 A0 32K x 16 RAM Array I/O1 – I/O 8 I/O9 – I/O 16 COLUMN DECODER BHE WE CE OE BLE 1020-1 A0 A1 A2 OE BHE BLE I/O16 I/O15 I/O14 I/O13 VSS VCC I/O12 I/O11 I/O10 I/O9 NC A3 A4 A5 A6 NC ROW DECODER A7 A8 A9 A10 A11 A12 A13 A14 SENSE AMPS 1020-2 Selection Guide 7C1020-10 Maximum Access Time (ns) Maximum Operating Current (mA) L Maximum CMOS Standby Current (mA) L 10 180 150 3 0.1 7C1020-12 12 170 140 3 0.1 7C1020-15 15 160 130 3 0.1 7C1020-20 20 160 130 3 0.1 Cypress Semiconductor Corporation • 3901 North First Street • San Jose • CA 95134 • 408-943-2600 October 18, 1999 CY7C1020 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 .................................. –0.5V to VCC +0.5V [1] Current into Outputs (LOW)......................................... 20 mA Static Discharge Voltage ........................................... >2001V (per MIL-STD-883, Method 3015) Latch-Up Current ..................................................... >200 mA Operating Range Range Commercial Ambient Temperature[2] 0°C to +70°C VCC 4.5V–5.5V Electrical Characteristics Over the Operating Range 7C1020-10 Parameter VOH VOL VIH VIL IIX IOZ ICC Description Output HIGH Voltage Output LOW Voltage Input HIGH Voltage Input LOW Voltage Input Load Current Output Leakage Current VCC Operating Supply Current Automatic CE Power-Down Current — TTL Inputs Automatic CE Power-Down Current — CMOS Inputs [1] 7C1020-12 Min. 2.4 Max. 0.4 2.2 –0.5 –1 –2 6.0 0.8 +1 +2 170 140 20 10 3 100 7C1020-15 Min. 2.4 0.4 2.2 –0.5 –1 –2 6.0 0.8 +1 +2 160 130 20 10 3 100 mA µA mA Max. Unit V V V V µA µA mA Test Conditions VCC = Min., IOH = –4.0 mA VCC = Min., IOL = 8.0 mA Min. 2.4 Max. 0.4 2.2 –0.5 GND < VI < VCC GND < VI < VCC, Output Disabled VCC = Max., IOUT = 0 mA, f = fMAX = 1/tRC Max. VCC, CE > V IH VIN > VIH or VIN < VIL, f = fMAX Max. VCC, CE > VCC – 0.3V, VIN > VCC – 0.3V, or VIN < 0.3V, f = 0 L –1 –2 6.0 0.8 +1 +2 180 150 20 ISB1 L 10 3 ISB2 L 100 Notes: 1. VIL (min.) = –2.0V for pulse durations of less than 20 ns. 2. TA is the case temperature. 2 CY7C1020 Electrical Characteristics Over the Operating Range (continued) 7C1020-20 Parameter VOH VOL VIH VIL IIX IOZ ICC 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 < VI < VCC, Output Disabled VCC = Max., IOUT = 0 m A, f = fMAX = 1/tRC Max. V CC, CE > VIH VIN > V IH or VIN < V IL, f = fMAX Max. V CC, CE > VCC – 0.3V, VIN > V CC – 0.3V, or VIN < 0.3V, f = 0 L Test Conditions VCC = Min., IOH = –4.0 mA VCC = Min., IOL = 8.0 mA 2.2 –0.5 –1 –2 Min. 2.4 0.4 6.0 0.8 +1 +2 160 130 20 L 10 3 L 100 mA µA mA Max. Unit V V V V µA µA mA ISB1 ISB2 Capacitance[3] Parameter CIN COUT Description Input Capacitance Output 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) OUTPUT Equivalent to: THÉ VENIN EQUIVALENT R2 255Ω R 481 Ω R 481 Ω 5V OUTPUT 5 pF INCLUDING JIG AND SCOPE 167Ω 30 pF R2 255Ω GND