Overview
The SN74HC594DWR is an 8-bit serial-in, parallel-out shift register with an integrated 8-bit D-type storage register, manufactured by Texas Instruments. This component is part of the HC594 series and is packaged in a 16-pin SOIC (DW) package. It is designed to operate over a wide voltage range and offers high-current outputs, making it suitable for various digital circuit applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SOIC (DW) | - |
| Pins | 16 | - |
| Operating Temperature Range | -40 to 125 | °C |
| Supply Voltage (VCC) | 2 to 6 | V |
| High-Level Input Voltage (VIH) | 1.5 (VCC=2V), 3.15 (VCC=4.5V), 4.2 (VCC=6V) | V |
| Low-Level Input Voltage (VIL) | 0.5 (VCC=2V), 1.35 (VCC=4.5V), 1.8 (VCC=6V) | V |
| Input Transition Time | 1000 (VCC=2V), 500 (VCC=4.5V), 400 (VCC=6V) | ns |
| Output Drive at 5V | ±6 mA | mA |
| Maximum ICC (Power Consumption) | 80 µA | µA |
| Typical Propagation Delay (tpd) | 15 ns | ns |
Key Features
- Wide Operating Voltage Range of 2 V to 6 V
- High-Current Outputs Can Drive Up To 15 LSTTL Loads
- Low Power Consumption, 80-µA Maximum ICC
- Typical Propagation Delay (tpd) of 15 ns
- ±6-mA Output Drive at 5 V
- Low Input Current of 1 µA Maximum
- 8-Bit Serial-In, Parallel-Out Shift Registers With Storage
- Independent Direct Overriding Clears on Shift and Storage Registers
- Independent Clocks for Both Shift and Storage Registers
Applications
The SN74HC594DWR is versatile and can be used in a variety of digital circuit applications, including:
- Serial-to-Parallel Data Conversion
- Shift Register Applications
- Data Storage and Retrieval
- Cascading Shift Registers for Extended Data Lengths
- Digital Display Drivers
- Control and Interface Circuits
Q & A
- What is the package type of the SN74HC594DWR?
The SN74HC594DWR is packaged in a 16-pin SOIC (DW) package.
- What is the operating temperature range of the SN74HC594DWR?
The operating temperature range is -40°C to 125°C.
- What is the supply voltage range for the SN74HC594DWR?
The supply voltage range is 2 V to 6 V.
- How many LSTTL loads can the outputs drive?
The high-current outputs can drive up to 15 LSTTL loads.
- What is the typical propagation delay of the SN74HC594DWR?
The typical propagation delay (tpd) is 15 ns.
- Does the SN74HC594DWR have independent clocks for shift and storage registers?
- Can the SN74HC594DWR be cascaded?
- What is the maximum power consumption of the SN74HC594DWR?
The maximum ICC (power consumption) is 80 µA.
- What is the input current of the SN74HC594DWR?
The low input current is 1 µA maximum.
- Are there direct overriding clear inputs on the shift and storage registers?
