The MM74VHC164MX is an 8-bit serial-in/parallel-out shift register with asynchronous reset. It is part of the VHC family of high-speed CMOS logic devices, offering improved speed performance compared to standard CMOS logic circuits while maintaining low power consumption. This device shifts data serially into an 8-bit register and provides parallel outputs from each bit.

Applications:

• Display Drivers
• Serial-to-Parallel Conversion
• Remote Control Systems
• Data Acquisition Systems
• Keyboard Scanning

Features:

• High Speed: tPD = 4.4 ns (typical) at VCC = 5V
• Low Power Dissipation: ICC = 4 μA (maximum) at TA = 25°C
• High Noise Immunity: VNIH = VNIL = 30 % VCC (min.)
• Output Drive Capability: 10 LSTTL Loads
• Symmetrical Output Impedance: |IOH| = IOL = 8 mA (min.)
• Balanced Propagation Delays: tPLH ≈ tPHL
• Wide Operating Voltage Range: VCC = 2V to 6V

Benefits:

• Increased system speed due to high-speed operation.
• Reduced power consumption, making it suitable for battery-powered applications.
• Improved noise immunity for reliable operation in noisy environments.
• Direct compatibility with LSTTL devices simplifies system integration.
• Simplified design due to balanced propagation delays.
• Flexible operating voltage range allows use in diverse applications.

Additional Details:

The MM74VHC164MX features a serial data input (DSA and DSB), a clock input (CP), and an asynchronous reset input (MR). Data is shifted on the positive-going clock transition. A low level on the MR input clears the register and forces all outputs to a low state. The device is available in a SOIC package.

Technical Specifications:

• Supply Voltage: 2V to 6V
• Operating Temperature: -40°C to +85°C
• Input High Voltage: 2V (min)
• Input Low Voltage: 0.8V (max)
• Output High Current: -8mA
• Output Low Current: 8mA