1 Features
• Wide operating voltage range: 2 V to 6 V
• Schmitt-trigger inputs allow for slow or noisy input
signals
• Low power consumption
– Typical ICC of 100 nA
– Typical input leakage current of ±100 nA
• ±7.8-mA output drive at 6 V
• Extended ambient temperature range: –40°C to
+125°C, TA

2 Applications
• Output expansion
• LED matrix control
• 7-segment display control
• 8-bit data storage

3 Description
The SN74HCS596 device contains an 8-bit, serial-in,
parallel-out shift register that feeds an 8-bit D-type
storage register. All inputs include Schmitt-triggers,
eliminating any erroneous data outputs due to slowedged
or noisy input signals. 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 highimpedance state. Internal
register data is not impacted by the operation of the
OE input.