Overview
The SN74AHCT595PWRG3 is an 8-bit serial-in, parallel-out shift register produced by Texas Instruments. This component is part of the AHCT series, which is known for its high-speed and low-power CMOS logic. The device integrates an 8-bit serial-in, parallel-out shift register and an 8-bit D-type storage register, making it versatile for various digital circuit applications.
The SN74AHCT595PWRG3 is packaged in a 16-pin TSSOP (Thin Shrink Small Outline Package) and operates over a wide temperature range of -40°C to 125°C. It is designed to be TTL-voltage compatible and features low power consumption, high-current 3-state outputs, and direct clear functionality.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VCC Supply Voltage Range | -0.5 | 7 | V | |
| VI Input Voltage Range | -0.5 | 7 | V | |
| VO Output Voltage Range | -0.5 | VCC + 0.5 | V | |
| Operating Temperature Range | -40 | 125 | °C | |
| Low-Level Input Voltage (VIL) | 0.8 | 0.8 | V | |
| High-Level Input Voltage (VIH) | 2 | 2 | V | |
| High-Level Output Current (IOH) | -8 | -8 | mA | |
| Low-Level Output Current (IOL) | 8 | 8 | mA | |
| Propagation Delay Time (tPD) | 1 | 7.4 | 8.5 | ns |
Key Features
- 8-bit serial-in, parallel-out shift register with an 8-bit D-type storage register
- Wide operating voltage range of 2 V to 6 V
- High-current 3-state outputs can drive up to 15 LSTTL loads
- Low power consumption: 80-µA (maximum)
- Direct overriding clear (SRCLR) input
- Separate clocks for shift and storage registers (SRCLK and RCLK)
- Output enable (OE) input to control output state
- TTL-voltage compatible inputs
- Low input current: 1 µA (maximum)
- ESD protection exceeds JESD 22 standards (2000-V human-body model, 200-V machine model, 1000-V charged-device model)
Applications
The SN74AHCT595PWRG3 is suitable for a variety of digital circuit applications, including:
- Display drivers and LED drivers due to its high-current 3-state outputs
- Serial-to-parallel data conversion in communication systems
- Cascaded shift register applications where multiple devices are connected in series
- General-purpose digital logic circuits requiring low power consumption and high-speed operation
- Industrial control systems and automation where reliable and robust digital logic is necessary
Q & A
- What is the operating voltage range of the SN74AHCT595PWRG3?
The operating voltage range is from 2 V to 6 V.
- What type of outputs does the SN74AHCT595PWRG3 have?
The device has high-current 3-state outputs that can drive up to 15 LSTTL loads.
- What is the maximum propagation delay time for the SN74AHCT595PWRG3?
The maximum propagation delay time (tPD) is approximately 8.5 ns.
- Does the SN74AHCT595PWRG3 have ESD protection?
- What is the operating temperature range of the SN74AHCT595PWRG3?
The operating temperature range is from -40°C to 125°C.
- How many bits does the shift register and storage register have in the SN74AHCT595PWRG3?
- What type of package is the SN74AHCT595PWRG3 available in?
- Does the SN74AHCT595PWRG3 have a direct clear input?
- What is the maximum low-level output current (IOL) of the SN74AHCT595PWRG3?
- Are the inputs of the SN74AHCT595PWRG3 TTL-voltage compatible?
