Overview
The SN74AHC595PWG4, manufactured by Texas Instruments, is an 8-bit shift register with output latches and 3-state outputs. This component is designed for high-speed operation and is widely used in applications requiring serial-to-parallel data conversion. Its market positioning targets designers and engineers in industries such as consumer electronics, industrial automation, and automotive systems. The SN74AHC595PWG4 stands out for its low power consumption, high noise immunity, and compatibility with a wide range of digital systems.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Logic Type | Shift Register | - | 8-bit serial-in, parallel-out |
| Output Type | 3-State | - | High-impedance output when disabled |
| Supply Voltage | 2 to 5.5 | V | Wide operating range |
| Operating Temperature | -40 to 85 | °C | Suitable for industrial environments |
| Package | TSSOP-16 | - | Compact surface-mount package |
| Clock Frequency | Up to 100 | MHz | High-speed data transfer |
Key Features
- 8-bit serial input with parallel output for efficient data handling.
- Separate clocks for shift register and storage register, allowing flexible data management.
- 3-state outputs enable bus sharing and reduce system complexity.
- Low power consumption and high noise immunity, ideal for battery-operated and noisy environments.
- Compatible with TTL and CMOS logic levels, ensuring broad system integration.
Applications
The SN74AHC595PWG4 is extensively used in various fields such as LED displays, where it drives multiple LEDs with minimal control lines. In industrial automation, it facilitates control signal distribution and data storage. Automotive systems benefit from its robust performance in harsh environments. Additionally, it is employed in consumer electronics for interface expansion and data buffering, enhancing system functionality without increasing complexity.
Q & A
What is the primary function of the SN74AHC595PWG4?
The primary function is to convert serial input data into parallel output data, useful for expanding the number of output pins in digital systems.
What is the maximum clock frequency supported?
It supports clock frequencies up to 100 MHz, enabling high-speed data transfer.
Can the outputs be disabled?
Yes, the 3-state outputs can be disabled, providing a high-impedance state that allows bus sharing.
What is the operating voltage range?
The operating voltage range is from 2 V to 5.5 V, making it versatile for various applications.
Is the component suitable for automotive use?
Yes, its robust design and wide operating temperature range make it suitable for automotive applications.
How does the shift register work?
Data is shifted into the register on the rising edge of the clock signal and can be latched to the output on a separate clock signal.
What package does the SN74AHC595PWG4 come in?
It is available in a TSSOP-16 package, which is compact and suitable for surface-mount technology.
Can multiple units be cascaded?
Yes, multiple units can be cascaded to increase the number of output pins, using the serial output of one unit as the input to the next.
What is the power consumption like?
It features low power consumption, making it ideal for battery-operated devices.
Is the component RoHS compliant?
Yes, it is RoHS compliant, adhering to environmental and safety standards.
