The HD74HC164P-E is an 8-bit serial-in, parallel-out shift register manufactured by Renesas Electronics America. This high-speed CMOS logic device utilizes advanced silicon-gate CMOS technology to achieve the high-speed operation similar to equivalent Bipolar Schottky TTL while maintaining the low power consumption inherent in CMOS integrated circuits. The HD74HC164P-E is designed for use in a wide range of digital logic applications.

Applications

• Serial-to-parallel data conversion
• Remote control systems
• Display drivers
• Keyboard scanners
• Logic circuits for digital systems

Features

• High-speed operation: tpd = 13 ns (typ.) at VCC = 5V
• Low power dissipation: ICC = 4 μA (max.) at Ta = 25°C
• High noise immunity: VNIH = VNIL = 28 % VCC (min.)
• Output drive capability: 10 LSTTL loads
• Symmetrical output impedance: |IOH| = IOL = 4 mA (min.)
• Wide operating voltage range: VCC = 2 to 6 V
• Pin and function compatible with 74LS164

Benefits

• Improved system performance due to high-speed operation.
• Reduced power consumption, leading to energy efficiency.
• Enhanced noise immunity, providing more reliable operation in noisy environments.
• Direct interface with TTL circuits.
• Flexible operating voltage range suitable for various applications.
• Easy replacement of existing 74LS164 devices.

Additional Details

The HD74HC164P-E has two serial data inputs (A and B) and eight parallel outputs (Q0-Q7). Data is serially entered into the register on each positive clock transition if both A and B are HIGH. A low level on the clear (CLR) input overrides all other inputs and forces all outputs LOW. This device is supplied in a 14-pin DIP package.

Absolute Maximum Ratings: Supply Voltage (VCC): -0.5 to +7.0 V, DC Input Voltage (VI): -0.5 to VCC + 0.5 V, DC Output Voltage (VO): -0.5 to VCC + 0.5 V, Operating Temperature (Topr): -40 to +85 °C.