1 Features
• Operating voltage range of 4.5V to 5.5V
• TTL-compatible inputs
• Continuous ±24mA output drive at 5V
• Supports up to ±75mA output drive at 5V
in short bursts
• Drives 50Ω transmission lines
• Fast operation with delay of 11.6ns max

2 Applications
• Increase the number of outputs on a
microcontroller
• Store up to 8 bits of data temporarily

3 Description
The SN74ACT596 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
open-drain outputs. Separate clocks are provided
for both the shift and storage register. The shift
register has a direct overriding clear (SRCLR) input,
serial (SER) input, and a serial output (QH') for
cascading. When the output-enable (OE) input is high,
the outputs are in a high-impedance state. Internal
register data is not impacted by the operation of the
OE input.