CD74HC595EE4

计数器移位寄存器 8-Bit Shift Register

description/ordering information

The CD74HC595 device contains an 8-bit serial-in, parallel-out shift register that feeds an 8-bit D-type storage register. The storage register has parallel 3-state outputs. Separate clocks are provided for both the shift and storage registers. The shift register has a direct overriding clear SRCLR input, serial SER input, and serial output for cascading. When the output-enable OE input is high, the outputs are in the high-impedance state.

8-Bit Serial-In, Parallel-Out Shift

Wide Operating Voltage Range of 2 V to 6 V

High-Current 3-State Outputs Can Drive Up To 15 LSTTL Loads

Low Power Consumption, 80-µA Max ICC

Typical tpd = 14 ns

±6-mA Output Drive at 5 V

Low Input Current of 1 µA Max

Shift Register Has Direct Clear