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IDT71256 Datasheet(PDF) 3 Page - Integrated Device Technology |
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IDT71256 Datasheet(HTML) 3 Page - Integrated Device Technology |
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3 / 9 page  7.2 3 IDT71256S/L CMOS STATIC RAM 256K (32K x 8-BIT) MILITARY AND COMMERCIAL TEMPERATURE RANGES DC ELECTRICAL CHARACTERISTICS (1, 2) (VCC = 5.0V ± 10%, VLC = 0.2V, VHC = VCC - 0.2V) 71256S/L20 71256S/L25 71256S/L30 71256S/L35 Symbol Parameter Power Com’l. Mil. Com’l. Mil. Com’l. Mil. Com’l. Mil. Unit ICC Dynamic Operating Current S — — — 150 — 145 — 140 mA CS ≤ VIL, Outputs Open VCC = Max., f = fMAX (2) L 135 — 115 130 — 125 105 120 ISB Standby Power Supply S — — — 20 — 20 — 20 mA Current (TTL Level) CS ≥ VIH, VCC = Max., L 3 — 3 3 — 3 3 3 Outputs Open, f = fMAX (2) ISB1 Full Standby Power Supply S — — — 20 — 20 — 20 mA Current (CMOS Level) CS ≥ VHC, VCC = Max., f = 0 L 0.4 — 0.4 1.5 — 1.5 0.4 1.5 RECOMMENDED OPERATING TEMPERATURE AND SUPPLY VOLTAGE Grade Temperature GND VCC Military –55 °C to +125°C 0V 5.0V ± 10% Commercial 0 °C to +70°C 0V 5.0V ± 10% 2946 tbl 05 RECOMMENDED DC OPERATING CONDITIONS Symbol Parameter Min. Typ. Max. Unit VCC Supply Voltage 4.5 5.0 5.5 V GND Supply Voltage 0 0 0 V VIH Input High Voltage 2.2 — 6.0 V VIL Input Low Voltage –0.5 (1) — 0.8 V NOTE: 2946 tbl 06 1. VIL (min.) = –3.0V for pulse width less than 20ns, once per cycle. NOTES: 2946 tbl 07 1. All values are maximum guaranteed values. 2. fMAX = 1/tRC, all address inputs cycling at fMAX; f = 0 means no address pins are cycling. 3. Also available: 120 and 150 ns military devices. 71256S/L45 71256S/L55 71256S/L70 71256S/L85 (3) 71256S/L100(3) Symbol Parameter Power Com’l. Mil. Com’l. Mil. Com’l. Mil. Com’l. Mil. Com'l. Mil. Unit ICC Dynamic Operating Current S — 135 — 135 — 135 — 135 — 135 mA CS ≤ VIL, Outputs Open VCC = Max., f = fMAX (2) L 100 115 — 115 — 115 — 115 — 115 ISB Standby Power Supply S — 20 — 20 — 20 — 20 — 20 mA Current (TTL Level) CS ≥ VIH, VCC = Max., L 3 3 — 3 — 3 — 3 — 3 Outputs Open, f = fMAX (2) ISB1 Full Standby Power Supply S — 20 — 20 — 20 — 20 — 20 mA Current (CMOS Level) CS ≥ VHC, VCC = Max., f = 0 L 0.4 1.5 — 1.5 — 1.5 — 1.5 — 1.5 |
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