Overview
The SN74HC594DW is an 8-bit serial-in, parallel-out shift register with an integrated 8-bit D-type storage register, manufactured by Texas Instruments. This device is part of the HC (High-Speed CMOS) logic family and is designed for a wide range of applications requiring data shifting and storage. The shift register and storage register have separate clocks and direct overriding clear inputs, making it versatile for various digital circuit designs.
Key Specifications
| Parameter | Value |
|---|---|
| Package/Case | SOIC (DW) |
| Number of Pins | 16 |
| Direction | Unidirectional |
| Frequency | 24 MHz |
| Operating Temperature Range | -40°C to 125°C |
| Supply Voltage Range | 2 V to 6 V |
| Input Current | 1 µA (Maximum) |
| Output Drive | ±6 mA at 5 V |
| Propagation Delay | 25 ns (Typical) |
| Number of Bits | 8 |
| Number of Output Lines | 10 |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
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 of 15 ns
- 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
- Serial output for cascading purposes
- Positive edge-triggered clocks for both shift and storage registers
Applications
The SN74HC594DW is suitable for a variety of digital circuit applications, including:
- Data transmission and reception systems
- Digital display drivers
- Serial-to-parallel data conversion
- Cascaded shift register applications
- General-purpose digital logic circuits
Q & A
- What is the package type of the SN74HC594DW?
The package type is SOIC (DW) with 16 pins.
- What is the operating temperature range of the SN74HC594DW?
The operating temperature range is -40°C to 125°C.
- What is the supply voltage range for the SN74HC594DW?
The supply voltage range is 2 V to 6 V.
- What is the maximum input current for the SN74HC594DW?
The maximum input current is 1 µA.
- What is the propagation delay of the SN74HC594DW?
The typical propagation delay is 25 ns).
- Does the SN74HC594DW have independent clocks for the shift and storage registers?
- Can the SN74HC594DW drive multiple LSTTL loads?
- Is the SN74HC594DW RoHS compliant?
- What is the purpose of the serial output (QH) in the SN74HC594DW?
The serial output (QH) is provided for cascading purposes).
- Are the clocks for the shift and storage registers positive edge-triggered?
