TI SN74HCS594DR

The SN74HCS594 device contains an 8-bit serial-in, parallel-out shift register that feeds an 8-bit D-type storage register. All inputs incorporate Schmitt-trigger architecture, eliminating any erroneous data output caused by slowly changing edges or noisy input signals. The storage register has parallel outputs. The shift register and storage register have separate clocks and direct overriding clear (SRCLR, RCLR) inputs, as well as a serial output (QH') for cascading configurations. Both the shift register (SRCLK) and storage register (RCLK) clocks are positive-edge triggered. If the two clocks are connected together, the shift register advances one pulse ahead of the storage register.

• Wide supply voltage range: 2V to 6V
• Schmitt-trigger inputs for slow or noisy input signals
• Low power consumption
• ICC typical: 100nA
• Input leakage current typical: ±100nA
• Output drive: ±7.8mA at 6V
• Operating ambient temperature range: -40℃ to +125℃, TA

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