Overview
The 74HC594DB,112 is a high-speed CMOS logic integrated circuit produced by NXP Semiconductors. It is an 8-bit serial-in/parallel-out shift register with an integrated storage register. This device is designed to handle serial data input and convert it into parallel output, making it versatile for various digital circuit applications.
The 74HC594DB,112 features separate clock and reset inputs for both the shift and storage registers, allowing for precise control over data transfer and register reset functions. The device operates within a supply voltage range of 2V to 6V, making it compatible with a wide range of digital systems.
Key Specifications
| Parameter | Description | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| VCC Supply Voltage | Supply voltage range | 2.0 | - | 6.0 | V |
| SHCP Clock Frequency | Maximum clock frequency at VCC=5V | - | - | 100 | MHz |
| SHCP Pulse Width | Minimum pulse width for SHCP clock | 14 | - | - | ns |
| STCP Pulse Width | Minimum pulse width for STCP clock | 14 | - | - | ns |
| Propagation Delay (SHCP to Q7S) | Propagation delay from SHCP to Q7S at VCC=5V | - | 26 | - | ns |
| Propagation Delay (STCP to Qn) | Propagation delay from STCP to Qn at VCC=5V | - | 26 | - | ns |
| Output Current (Qn) | Maximum output current per output pin | - | - | 35 | mA |
| Package Type | Package type and pin count | SSOP | - | - | 16-pin |
| Operating Temperature | Operating temperature range | -40 | - | 125 | °C |
Key Features
- Synchronous Serial Input and Output: Data is shifted on the LOW-to-HIGH transitions of the SHCP input, and the data in the shift register is transferred to the storage register on a LOW-to-HIGH transition of the STCP input.
- 8-bit Parallel Output: The device provides an 8-bit parallel output, making it suitable for applications requiring parallel data processing.
- Separate Clock and Reset Inputs: Separate clock inputs (SHCP and STCP) and reset inputs (SHR and STR) for both shift and storage registers allow for precise control over data transfer and reset functions.
- Cascading Capability: The serial output (Q7S) enables cascading of multiple devices, allowing for the creation of longer shift registers.
- High-Speed Operation: The device operates at high speeds, with a maximum clock frequency of up to 100 MHz at VCC=5V.
- Wide Supply Voltage Range: The device operates within a supply voltage range of 2V to 6V, making it compatible with various digital systems.
Applications
- Digital Signal Processing: The 74HC594DB,112 is suitable for applications involving digital signal processing, where serial data needs to be converted into parallel format.
- Display Drivers: It can be used in display driver circuits where data needs to be shifted and displayed in parallel format.
- Communication Systems: The device is useful in communication systems where serial data transmission and reception are required.
- Industrial Control Systems: It can be integrated into industrial control systems for data processing and control functions.
- Embedded Systems: The 74HC594DB,112 is also applicable in embedded systems where efficient data handling and processing are necessary.
Q & A
- What is the primary function of the 74HC594DB,112?
The primary function of the 74HC594DB,112 is to act as an 8-bit serial-in/parallel-out shift register with an integrated storage register.
- What is the supply voltage range for the 74HC594DB,112?
The supply voltage range for the 74HC594DB,112 is from 2V to 6V.
- How does the device handle data transfer between the shift and storage registers?
Data is shifted on the LOW-to-HIGH transitions of the SHCP input, and the data in the shift register is transferred to the storage register on a LOW-to-HIGH transition of the STCP input.
- What is the maximum clock frequency for the 74HC594DB,112 at VCC=5V?
The maximum clock frequency at VCC=5V is up to 100 MHz.
- Can the 74HC594DB,112 be cascaded with other devices?
- What are the reset functions available on the 74HC594DB,112?
The device has separate reset inputs (SHR and STR) for the shift and storage registers, which can be asserted low to clear the corresponding register.
- What is the package type and pin count of the 74HC594DB,112?
The package type is SSOP with 16 pins.
- What is the operating temperature range for the 74HC594DB,112?
The operating temperature range is from -40°C to 125°C.
- What are some typical applications of the 74HC594DB,112?
Typical applications include digital signal processing, display drivers, communication systems, industrial control systems, and embedded systems.
- How does the 74HC594DB,112 handle output current?
The device can handle a maximum output current of 35 mA per output pin.
