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HD74HC669P Datasheet(PDF) 7 Page - Renesas Technology Corp |
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HD74HC669P Datasheet(HTML) 7 Page - Renesas Technology Corp |
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7 / 11 page  HD74HC668, HD74HC669 Rev.2.00 Mar 30, 2006 page 7 of 10 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 — — 5 — 4 4.5 — — 27 — 21 Maximum clock Frequency fmax 6.0 — — 32 — 25 MHz 2.0 — — 200 — 250 4.5 — — 40 — 50 tPLH tPHL 6.0 — — 34 — 43 ns Clock to Ripple carry out 2.0 — — 225 — 280 4.5 — — 45 — 56 tPLH tPHL 6.0 — — 38 — 48 ns Clock to Q 2.0 — — 150 — 190 4.5 — — 30 — 38 tPLH tPHL 6.0 — — 26 — 33 ns Enable T to Ripple carry out 2.0 — — 200 — 250 4.5 — — 40 — 50 Propagation delay time tPLH tPHL 6.0 — — 34 — 43 ns U/ D to Ripple carry out 2.0 80 — — 100 — 4.5 16 — — 20 — Pulse width tw 6.0 14 — — 17 — ns 2.0 100 — — 125 — 4.5 20 — — 25 — tsu 6.0 17 — — 21 — ns Data to Clock 2.0 150 — — 190 — 4.5 30 — — 38 — tsu 6.0 26 — — 33 — ns Enable P, T to Clock 2.0 150 — — 190 — 4.5 30 — — 38 — tsu 6.0 26 — — 33 — ns Loadk to Clock 2.0 150 — — 190 — 4.5 30 — — 38 — Setup time tsu 6.0 26 — — 33 — ns U/ D to Clock 2.0 5 — — 5 — 4.5 5 — — 5 — Hold time th 6.0 5 — — 5 — ns 2.0 — — 75 — 95 4.5 — 5 15 — 19 Output rise/fall time tTLH tTHL 6.0 — — 13 — 16 ns Input capacitance Cin — — 5 10 — 10 pF |
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