Overview
The 74HC595PW, produced by NXP USA Inc., is an 8-bit serial-in/serial or parallel-out shift register with a storage register and 3-state outputs. This integrated circuit is part of the 74HC/HCT family and is designed for use in a variety of digital logic applications. It features separate clocks for both the shift and storage registers, enabling flexible data transfer and storage. The device includes a serial input (DS), a serial output (Q7S) for cascading, and an asynchronous reset input (MR). The output enable input (OE) allows the outputs to be set to a high-impedance OFF-state when necessary.
Key Specifications
| Parameter | Value | Description |
|---|---|---|
| VCC | 2.0 - 6.0 V | Operating voltage range |
| Logic Switching Levels | CMOS | Logic level compatibility |
| Output Drive Capability | ± 7.8 mA | Maximum output current |
| tpd | 16 ns | Propagation delay time |
| fmax | 108 MHz | Maximum shift out frequency |
| Number of Bits | 8 | Number of bits in the shift register |
| Tamb | -40 °C to +125 °C | Operating temperature range |
| Package | TSSOP16 (SOT403-1) | Package type and dimensions |
| ESD Protection | HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V, CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V | Electrostatic discharge protection levels |
Key Features
- 8-bit serial input and serial or parallel output: Allows for flexible data transfer and output configurations.
- Storage register with 3-state outputs: Enables outputs to be set to a high-impedance OFF-state when necessary.
- Separate clocks for shift and storage registers: Provides control over data transfer and storage operations.
- Asynchronous reset input (MR): Allows for immediate reset of the shift register.
- Serial-to-parallel data conversion: Facilitates conversion of serial data to parallel output.
- High ESD protection: Protects against electrostatic discharge up to specified levels.
- Multiple package options: Available in various packages, including TSSOP16.
Applications
- Digital logic circuits: Suitable for use in various digital logic applications requiring serial-to-parallel data conversion.
- Remote control systems: Can be used in remote control systems where data needs to be stored and transmitted serially.
- Display drivers: Useful in driving display elements such as LEDs or LCDs.
- Automotive and industrial control systems: Applicable in systems requiring robust and reliable data transfer and storage.
Q & A
- What is the operating voltage range of the 74HC595PW?
The operating voltage range is 2.0 - 6.0 V.
- What type of logic switching levels does the 74HC595PW support?
The 74HC595PW supports CMOS logic levels.
- What is the maximum output drive capability of the 74HC595PW?
The maximum output drive capability is ± 7.8 mA.
- What is the propagation delay time of the 74HC595PW?
The propagation delay time is 16 ns.
- What is the maximum shift out frequency of the 74HC595PW?
The maximum shift out frequency is 108 MHz.
- How many bits does the shift register of the 74HC595PW have?
The shift register has 8 bits.
- What is the operating temperature range of the 74HC595PW?
The operating temperature range is -40 °C to +125 °C.
- What type of package is the 74HC595PW available in?
The 74HC595PW is available in a TSSOP16 (SOT403-1) package.
- What level of ESD protection does the 74HC595PW offer?
The 74HC595PW offers ESD protection up to HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V and CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V.
- How does the asynchronous reset input (MR) function on the 74HC595PW?
The asynchronous reset input (MR) allows for the immediate reset of the shift register when set to LOW.
