DESCRIPTION
The M54/74HCT245, HCT640 and HCT643 utilise silicon gate C2MOS technology to achive operating speeds eqivalent to LSTTL devices.
â HIGH SPEED
tPD = 10 ns (TYP.) at VCC = 5V
â LOW POWER DISSIPATION
ICC = 4 µA (MAX.) at TA = 25 °C
â COMPATIBLE WITH TTL OUTPUTS
VIH = 2V (MIN.) VIL = 0.8V (MAX.)
â OUTPUT DRIVE CAPABILITY
15 LSTTL LOADS
â SYMMETRICAL OUTPUT IMPEDANCE
|IOH| = IOL = 6 mA (MIN)
â BALANCED PROPAGATION DELAYS
tPLH = tPHL
â PIN AND FUNCTION COMPATIBLE
WITH 54/74LS245/640/643
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