Overview
The 74AHCT595D-Q100,11 is an 8-bit serial-in/serial or parallel-out shift register produced by Nexperia USA Inc. This device features a storage register and 3-state outputs, making it versatile for various digital circuit applications. It is part of the 74AHCT series, which is known for its TTL-compatible inputs and low power dissipation. The device is suitable for use in a wide range of environments due to its robust specifications and compliance with automotive and industrial standards.
Key Specifications
| Parameter | Value | Description |
|---|---|---|
| Type Number | 74AHCT595D-Q100,11 | Orderable part number |
| VCC (V) | 4.5 - 5.5 | Supply voltage range |
| Logic Switching Levels | TTL | Input logic levels |
| Output Drive Capability (mA) | ± 8 | Output current capability |
| tpd (ns) | 3.8 | Propagation delay |
| fmax (MHz) | 170 | Maximum frequency |
| Number of Bits | 8 | Number of bits in the shift register |
| Power Dissipation | Low | Power dissipation considerations |
| Tamb (°C) | -40 to +125 | Operating temperature range |
| Package | SO16 (SOT109-1) | Package type |
Key Features
- 8-bit Serial-in/Serial or Parallel-out Shift Register: Allows for serial input and either serial or parallel output, enabling flexible data transfer.
- Storage Register with 3-state Outputs: Data in the storage register appears at the output when the output enable input (OE) is LOW, and outputs assume a high-impedance OFF-state when OE is HIGH.
- Separate Clocks for Shift and Storage Registers: Data is shifted on the LOW-to-HIGH transitions of the SHCP input and transferred to the storage register on the LOW-to-HIGH transition of the STCP input.
- Asynchronous Reset (MR): A LOW on the MR input resets the shift register.
- TTL Compatible Inputs: The 74AHCT595D operates with TTL input levels, making it compatible with TTL logic systems.
- Overvoltage Tolerant Inputs: Inputs are overvoltage tolerant up to 5.5 V, allowing use in mixed voltage environments.
- High Noise Immunity and ESD Protection: Features Schmitt-trigger action on inputs and exceeds 2000 V HBM and 1000 V CDM ESD protection standards.
- Low Power Dissipation: CMOS low power dissipation for energy-efficient operation.
Applications
- Automotive Electronics: Qualified to the Automotive Electronics Council (AEC) standard Q100, making it suitable for automotive applications.
- Industrial Control Systems: Used in industrial environments for data transfer and storage due to its robust specifications and high noise immunity.
- Consumer Electronics: Suitable for use in consumer devices requiring serial-to-parallel data conversion and storage.
- Remote Control Systems: Can be used as a holding register in remote control applications.
- General Digital Circuits: Useful in any digital circuit requiring serial or parallel data transfer and storage.
Q & A
- What is the primary function of the 74AHCT595D-Q100,11?
The primary function is to act as an 8-bit serial-in/serial or parallel-out shift register with a storage register and 3-state outputs.
- What is the supply voltage range for the 74AHCT595D-Q100,11?
The supply voltage range is from 4.5 V to 5.5 V.
- What type of input logic levels does the 74AHCT595D-Q100,11 support?
The device supports TTL input logic levels.
- How does the asynchronous reset (MR) input work?
A LOW on the MR input resets the shift register.
- What is the maximum frequency of operation for the 74AHCT595D-Q100,11?
The maximum frequency of operation is 170 MHz.
- What is the operating temperature range for the 74AHCT595D-Q100,11?
The operating temperature range is from -40 °C to +125 °C.
- Does the 74AHCT595D-Q100,11 have ESD protection?
Yes, it exceeds 2000 V HBM and 1000 V CDM ESD protection standards.
- What package type is the 74AHCT595D-Q100,11 available in?
The device is available in the SO16 (SOT109-1) package.
- Is the 74AHCT595D-Q100,11 suitable for automotive applications?
Yes, it is qualified to the AEC-Q100 standard, making it suitable for automotive applications.
- What are some common applications of the 74AHCT595D-Q100,11?
Common applications include automotive electronics, industrial control systems, consumer electronics, and remote control systems.
