描述 Description

When the latch enable input is high, the Q outputs of HD74HCT373 will follow the D inputs and the Q outputs of HD74HCT533 will follow the inversion of the D inputs. When the latch enable goes low, data at the D inputs will be retained at the outputs until latch enable returns high again. When a high logic level is applied to the output control input, all outputs go to a high impedance state, regardless of what signals present at the other inputs and the state of the storage elements.

特性 Features

? LSTTL Output Logic Level Compatibility as well as CMOS Output Compatibility

? High Speed Operation: tpd (Data to Q) = 14 ns typ (CL = 50 pF)

? High Output Current: Fanout of 15 LSTTL Loads

? Wide Operating Voltage: VCC = 4.5 to 5.5 V

? Low Input Current: 1 μA max

? Low Quiescent Supply Current: ICC (static) = 4 μA max (Ta = 25°C)