HD74HC27

HD74HC27 Triple 3-input NOR Gates Features High Speed Operation: tpd = 10 ns typ (CL = 50 pF) High Output Current: Fanout of 10 LSTTL Loads Wide Operating Voltage: VCC = 2 to 6 V Low Input Current: 1 µA max Low Quiescent Supply Current: ICC (static) = 1 µA max (Ta = 25°C) Pin Arrangement 1A 1B 2A 2B 2C 2Y GND 1 2 3 4 5 6 7 (Top view) 14 VCC 13 1C 12 1Y 11 3C 10 3B 9 8 3A 3Y HD74HC27 DC Characteristics Ta = 25°C Item Input voltage Symbol VIH Ta = –40 to +85°C Max — — — 0.5 1.35 1.8 — — — — — 0.1 0.1 0.1 0.33 0.33 ±1.0 10 µA µA I OL = 4 mA I OL = 5.2 mA Vin = VCC or GND Vin = VCC or GND, Iout = 0 µA V I OH = –4 mA I OH = –5.2 mA Vin = VIH or VIL I OL = 20 µA V Vin = VIH or VIL I OH = –20 µA V Unit V Test Conditions VCC (V) Min Typ Max Min 2.0 4.5 6.0 1.5 — 3.15 — 4.2 — — — — — — — — — — 0.5 1.5 3.15 4.2 — VIL 2.0 4.5 6.0 1.35 — 1.8 — 1.9 4.4 5.9 4.13 5.63 — — — Output voltage VOH 2.0 4.5 6.0 4.5 6.0 1.9 2.0 — 4.4 4.5 — 5.9 6.0 — 4.18 — 5.68 — — — — — — — — — — VOL 2.0 4.5 6.0 4.5 6.0 0.0 0.1 0.0 0.1 0.0 0.1 — — — — 0.26 — 0.26 — ±0.1 — 1.0 — Input current Quiescent supply current Iin I CC 6.0 6.0 2 HD74HC27 AC Characteristics (CL = 50 pF, Input tr = tf = 6 ns) Ta = 25°C Item Symbol Ta = –40 to +85°C Max 115 23 20 115 23 20 95 19 16 95 19 16 10 pF ns ns ns Unit ns Test Conditions VCC (V) Min Typ Max Min 2.0 4.5 6.0 — — — — — — — — — — — — — — 10 — — 10 — — 5 — — 5 — 5 90 18 15 90 18 15 75 15 13 75 15 13 10 — — — — — — — — — — — — — Propagation ...