The CD74HCT166E is a high-speed 8-bit shift register designed and manufactured by Texas Instruments. This integrated circuit is part of the HCT (High-Speed CMOS Logic) family, which ensures compatibility with all industry-standard logic families through its TTL (Transistor-Transistor Logic) input switching levels.

Key Features

• Logic Type: 8-Bit Shift Register
• Operating Voltage: 4.5V to 5.5V
• High-Speed Performance: Typical shift frequency of 50MHz
• Low Power Consumption: 20µA max ICC
• Output Drive Capability: 15 LSTTL loads
• Temperature Range: -55°C to 125°C

Functional Description

The CD74HCT166E device features an 8-bit serial or parallel-in/serial-out shift register with a storage register and 3-state outputs. The shift register and storage register have separate clocks. Data is shifted on the positive-going transitions of the SH_CP (Shift Register Clock Input) and the data in the storage register is transferred to the output buffer on a positive-going transition of the ST_CP (Storage Register Clock Input).

Both the shift register clock (SH_CP) and storage register clock (ST_CP) are positive-edge triggered. If both clocks are connected together, the shift register is always one clock pulse ahead of the storage register.

Applications

The CD74HCT166E is suitable for a wide range of applications, including:

• Serial-to-parallel data conversion
• Remote control holding registers
• Data routing
• Counters and dividers
• Specialized communication protocols

Quality and Reliability

Texas Instruments is committed to providing high-quality and reliable products. The CD74HCT166E is no exception, and it is designed to meet or exceed the stringent requirements of the electronics industry. For detailed quality and reliability information, please refer to the official datasheet and product qualification reports available from Texas Instruments.

For more information or to place an order, please visit the Texas Instruments website or contact your local authorized distributor.