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HD74HCT245 Datasheet(PDF) 3 Page - Renesas Technology Corp |
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HD74HCT245 Datasheet(HTML) 3 Page - Renesas Technology Corp |
3 / 7 page HD74HCT245 Rev.2.00 Mar 30, 2006 page 3 of 6 Electrical Characteristics Ta = 25°C Ta = –40 to+85°C Item Symbol VCC (V) Min Typ Max Min Max Unit Test Conditions VIH 4.5 to 5.5 2.0 — — 2.0 — V Input voltage VIL 4.5 to 5.5 — — 0.8 — 0.8 V 4.4 — — 4.4 — V IOH = –20 µA VOH 4.5 4.5 4.18 — — 4.13 — Vin = VIH or VIL IOH = –6 mA — — 0.1 — 0.1 V IOL = 20 µA Output voltage VOL 4.5 4.5 — — 0.26 — 0.33 Vin = VIH or VIL IOL = 6 mA Off-state output current IOZ 5.5 — — ±0.5 — ±5.0 µA Vin = VIH or VIL, Vout = VCC or GND Input current Iin 5.5 — — ±0.1 — ±1.0 µA Vin = VCC or GND Quiescent current ICC 5.5 — — 4.0 — 40 µA Vin = VCC or GND, Iout = 0 µA Switching Characteristics (CL = 50 pF, Input tr = tf = 6 ns) Ta = 25°C Ta = –40 to +85°C Item Symbol VCC (V) Min Typ Max Min Max Unit Test Conditions tPLH 4.5 — 11 22 — 28 Propagation delay time tPHL 4.5 — 13 22 — 28 ns tZL 4.5 — 17 30 — 38 Output enable time tZH 4.5 — 14 30 — 38 ns tLZ 4.5 — 20 30 — 38 Output disable time tHZ 4.5 — 22 30 — 38 ns Output rise/fall time tTLH tTHL 4.5 — 4 12 — 15 ns Input capacitance Cin — — 5 10 — 10 pF Test Circuit VCC A1 OPEN GND CL = 50 pF G DIR B1 Zout = 50 Ω Input S1 1 K Ω VCC VCC VCC S2 Output TEST S2 tPLH / tPHL OPEN GND tZH / tHZ tZL / tLZ Note : 1. CL includes probe and jig capacitance. 2. A2–B2, A3–B3, A4–B4, A5–B5, A6–B6, A7–B7, A8–B8 are identical to above load circuit. 3. S1 is a input / output swich. Pulse Generator |
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