The MC74HC595D is an 8-bit serial-in, serial or parallel-out shift register with output latches. This device features a serial input, serial output, and eight parallel outputs, making it suitable for applications such as LED display drivers, remote control devices, and data acquisition systems where serial data needs to be converted to parallel data.

Applications

• LED display drivers
• Remote control devices
• Data acquisition systems
• Serial-to-parallel data conversion
• Digital signage
• Instrumentation

Features

• High Speed Operation: tPD = 25 ns (typ) at VCC = 5V
• Low Power Dissipation: ICC = 4 μA (max) at TA = 25°C
• High Noise Immunity: VNIH = VNIL = 30 % VCC
• Operating Voltage Range: 2V to 6V
• 8-Bit Serial-In, Serial or Parallel-Out Shift Register
• Output Latches with 3-State Outputs
• Direct Clear Input

Benefits

• Efficient serial-to-parallel data conversion.
• Low power consumption.
• Reliable operation in noisy environments.
• Ability to drive multiple LEDs directly.
• Simplified interface with microcontrollers.
• Versatile use in a wide range of digital systems.

The MC74HC595D consists of an 8-bit shift register and an 8-bit output latch with three-state outputs. Data is serially shifted into the shift register on the positive-going edge of the shift register clock (SHCP). The data is then transferred to the output latch on the positive-going edge of the latch clock (STCP). The outputs can be enabled or disabled using the output enable (OE) input. A direct clear (CLR) input allows for asynchronous clearing of the shift register. The device operates from a supply voltage of 2V to 6V and is compatible with standard TTL logic levels. It is commonly available in a surface mount package.