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