HD74HCT564 - Hitachi Semiconductor

HD74HCT564 Octal D-type Flip-Flops (with 3-state outputs)

These devices are positive edge triggered flip-flops. The difference between HD74HCT564 and HD74HCT574 is only that the former has inverting outputs and the latter has non-inverting outputs. Data at the D inputs, meeting the set-up and hold time requirements, are transferred to the Q or Q outputs on positive going transitions of the clock (CK) input. When a .

Features

•
•
•
•
•
• LSTTL Output Logic Level Compatibility as well as CMOS Output Compatibility High Speed Operation: tpd (D to Q, Q) = 15 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) Function Table Outputs Output Control L L L H L X Clock Data H L X X HD74HCT564 L H Q0 Z HD74HCT574 H L Q0 Z HD74HCT564/HD74HCT574 Pin Arrangement HD74HCT564 Output Control 1 1D 2 2D 3 3D 4 4D 5 5D 6 6D 7 7D 8 8D 9 GND 10 OE D Q OE D Q OE D Q OE D Q OE D Q OE D Q.