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Electronic Components Datasheet Search |
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HD74HC109 Datasheet(PDF) 4 Page - Hitachi Semiconductor |
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HD74HC109 Datasheet(HTML) 4 Page - Hitachi Semiconductor |
4 / 9 page ![]() HD74HC109 4 AC Characteristics (C L = 50 pF, Input tr = tf = 6 ns) Ta = 25 °C Ta = –40 to +85 °C Item Symbol V CC (V) Min Typ Max Min Max Unit Test Conditions Maximum clock f max 2.0 — — 5 — 4 MHz frequency 4.5 — — 27 — 21 6.0 — — 32 — 25 Propagation delay t PLH 2.0 — — 175 — 220 ns Clock to Q or Q time t PHL 4.5 — 15 35 — 44 6.0 — — 30 — 37 2.0 — — 190 — 240 ns Preset or Clear to Clock 4.5 — 14 38 — 48 6.0 — — 32 — 41 Removal time t rem 2.0 25 — — 32 — ns 4.5 5 1 — 6 — 6.0 4 — — 5 — Setup time t su 2.0 100 — — 125 — ns 4.5 20 4 — 25 — 6.0 17 — — 21 — Hold time t h 2.0 0 — — 0 — ns 4.5 0 –4 — 0 — 6.0 0 — — 0 — Pulse width t w 2.0 80 — — 100 — ns 4.5 16 5 — 20 — 6.0 14 — — 17 — Output rise/fall t TLH 2.0 — — 75 — 90 ns time t THL 4.5 — 5 15 — 19 6.0 — — 13 — 16 Input capacitance Cin — — 5 10 — 10 pF |