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74HC123AP-E Datasheet(PDF) 6 Page - Renesas Technology Corp |
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74HC123AP-E Datasheet(HTML) 6 Page - Renesas Technology Corp |
6 / 11 page HD74HC123A Rev.2.00, Oct 11, 2005 page 4 of 8 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 2.0 — — 210 — 265 4.5 — 22 42 — 53 tPLH 6.0 — — 36 — 45 ns A, B or Clear to Q 2.0 — — 240 — 300 4.5 — 23 48 — 60 tPHL 6.0 — — 41 — 51 ns A, B or Clear to Q 2.0 — — 170 — 215 4.5 — 18 34 — 43 tPHL 6.0 — — 29 — 37 ns Clear to Q 2.0 — — 180 — 225 4.5 — 16 36 — 45 Propagation delay time tPLH 6.0 — — 31 — 38 ns Clear to Q 2.0 — — 75 — 95 4.5 — 5 15 — 19 Output rise/fall time tTLH, tTHL 6.0 — — 13 — 16 ns 2.0 150 — — 190 — 4.5 30 6 — 38 — Pulse width tw 6.0 26 — — 33 — ns A, B, Clear 2.0 — 1.5 — — — µs Rext = 6 k Ω 4.5 — 450 — — — Minimum output pulse width twQ(min) 6.0 — 380 — — — ns Cext = 28 pF Rext = 2 k Ω Output pulse width twQ 4.5 — 1.0 — — — ms Cext = 0.1 µF, Rext = 10 kΩ Input capacitance Cin — — 5 10 — 10 pF Caution in use: In order to prevent any malfunctions due to noise, connect a high-frequency performance capacitor between VCC and GND, and keep the wiring between the External components and Cext, Rext/Cext pins as short as possible. Test Circuit L * C includes the probe and fig capacitance. Note: Measurement point C L |
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