HD74HCT373RPEL中文资料(4)

Electrical Characteristics

VCC (V)

Input voltage Output voltage

Ta = 25°C Ta = –40 to+85°C

VIH 4.5 to 5.5 2.0 — — 2.0 — V VIL 4.5 to 5.5 — — 0.8 — 0.8 V VOH Vin = VIH or VIL IOH = –20 µA

IOH = –6 mA

VOL Vin = VIH or VIL IOL = 20 µA

IOL = 6 mA

±±5.0 µA Vin = VIH or VIL, IOZVout = VCC or GND

Iin 5.5 — — ±±1.0 µA Vin = VCC or GND ICCµA Vin = VCC or GND, Iout = 0 µA

Off-state output

current

Input current

Quiescent current

Switching Characteristics

(CL = 50 pF, Input tr = tf = 6 ns)

VCC (V)

Propagation delay

time

tPLHns Latch control to Q tPHLtPLHns Data to Q

tPHLtZLtZHtLZtHZtsu 4.5 20 — — 25 — ns Data to latch control th 4.5 10 — — 13 — ns Latch control to data twLatch control, output control tTLH tTHL Cin

—

—

5

10

—

10

pF

Ta = 25°C

Ta = –40 to +85°C

Output enable time Output disable

time Setup time Hold time Pulse width Output rise/fall time

Input capacitance

Test Circuit