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HD74HCT640 Datasheet(PDF) 5 Page - Hitachi Semiconductor |
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HD74HCT640 Datasheet(HTML) 5 Page - Hitachi Semiconductor |
5 / 7 page HD74HCT640/HD74HCT643 5 DC Characteristics Ta = 25 °C Ta = –40 to +85 °C Test Conditions Item Symbol Min Typ Max Min Max Unit V CC (V) Input voltage V IH 2.0 — — 2.0 — V 4.5 to 5.5 V IL — — 0.8 — 0.8 V 4.5 to 5.5 Output voltage V OH 4.4 — — 4.4 — V 4.5 Vin = V IH or VIL I OH = –20 µA 4.18 — — 4.13 — 4.5 I OH = –6 mA V OL — — 0.1 — 0.1 V 4.5 Vin = V IH or VIL I OL = 20 µA — — 0.26 — 0.33 4.5 I OL = 6 mA Off-state output current I OZ —— ±0.5 — ±5.0 µA 5.5 Vin = V IH or VIL, Vout = V CC or GND Input current Iin — — ±0.1 — ±1.0 µA 5.5 Vin = V CC or GND Quiescent current I CC — — 4.0 — 40 µA 5.5 Vin = V CC or GND, Iout = 0 µA AC Characteristics (C L = 50 pF, Input tr = tf = 6 ns) Ta = 25 °C Ta = –40 to +85 °C Test Conditions Item Symbol Min Typ Max Min Max Unit V CC (V) Propagation delay t PLH — 13 18 — 23 ns 4.5 time t PHL — 16 18 — 23 4.5 Output enable t ZH — 16 46 — 58 ns 4.5 time t ZL — 16 46 — 58 4.5 Output disable t HZ — 17 43 — 54 ns 4.5 time t LZ — 21 43 — 54 4.5 Output rise/fall time t TLH t THL — 4 12 — 15 ns 4.5 Input capacitance Cin — 5 10 — 10 pF — |
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