Overview
The SN74HC164DR is an 8-bit parallel-out serial shift register produced by Texas Instruments. This component is part of the HC logic family and is known for its wide operating voltage range and low power consumption. It features AND-gated serial inputs and an asynchronous clear input, providing complete control over incoming data. The device is triggered on the low-to-high transition of the clock (CLK) signal, allowing for flexible data manipulation.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Voltage Range | 2 V to 6 V | V |
| Output Drive at 5 V | ±4 mA | mA |
| Input Current (Maximum) | 1 μA | μA |
| Propagation Delay Time (tpd) | 20 ns | ns |
| Clock Frequency (Maximum at 5 V) | 25 MHz | MHz |
| Operating Temperature Range | -40°C to 125°C | °C |
| Package Type | SOIC (14 pins) | |
| Package Size | 8.65 mm × 3.91 mm | mm |
Key Features
- Wide Operating Voltage Range of 2 V to 6 V
- Outputs Can Drive Up to 10 LSTTL Loads
- Low Power Consumption, 80-μA Maximum ICC
- Typical Propagation Delay Time (tpd) of 20 ns
- ±4-mA Output Drive at 5 V
- Low Input Current of 1-μA Maximum
- AND-Gated (Enable/Disable) Serial Inputs
- Fully Buffered Clock and Serial Inputs
- Direct Clear (CLR) Input
Applications
The SN74HC164DR is suitable for a variety of digital circuit applications, including:
- Serial-to-Parallel Data Conversion
- Shift Registers in Digital Systems
- Data Storage and Retrieval
- Control and Monitoring Systems
- Embedded Systems Requiring Low Power Consumption
Q & A
- What is the operating voltage range of the SN74HC164DR?
The operating voltage range is from 2 V to 6 V.
- What is the maximum output drive at 5 V?
The maximum output drive at 5 V is ±4 mA.
- What is the typical propagation delay time (tpd)?
The typical propagation delay time (tpd) is 20 ns.
- How many LSTTL loads can the outputs drive?
The outputs can drive up to 10 LSTTL loads.
- What is the maximum input current?
The maximum input current is 1 μA.
- What type of inputs does the SN74HC164DR have?
The device has AND-gated (enable/disable) serial inputs and a fully buffered clock and serial inputs.
- How is the clocking triggered?
Clocking occurs on the low-to-high transition of the clock (CLK) signal.
- What is the function of the CLR input?
The CLR input is an asynchronous clear input that sets all registers to 0 immediately when a low signal is applied.
- What is the package type and size of the SN74HC164DR?
The package type is SOIC (14 pins) with a size of 8.65 mm × 3.91 mm.
- What is the operating temperature range of the SN74HC164DR?
The operating temperature range is from -40°C to 125°C.
