Overview
The MC74HC595AFELG is a high-performance silicon-gate CMOS 8-bit serial-input/serial or parallel-output shift register with latched 3-state outputs. This device, manufactured by onsemi, integrates an 8-bit shift register and an 8-bit D-type latch. It accepts serial data and provides both serial and parallel outputs. The shift register and latch have independent clock inputs, and the device includes an asynchronous reset for the shift register. It is designed to directly interface with the SPI serial data port on CMOS MPUs and MCUs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| DC Supply Voltage (VCC) | –0.5 to +6.0 | V |
| DC Input Voltage (VIN) | –0.5 to VCC + 0.5 | V |
| DC Output Voltage (VOUT) | –0.5 to VCC + 0.5 | V |
| DC Input Current, per Pin (IIN) | ±20 | mA |
| DC Output Current, per Pin (IOUT) | ±35 | mA |
| DC Supply Current, VCC and GND Pins (ICC) | ±75 | mA |
| Storage Temperature (TSTG) | –65 to +150 | °C |
| Lead Temperature, 1 mm from Case for 10 Seconds (TL) | 260 | °C |
| Maximum Clock Frequency (fmax) at VCC = 2.0V to 6.0V | 15 to 35 | MHz |
| Maximum Propagation Delay, Shift Clock to SQH | 28 to 210 | ns |
Key Features
- Output Drive Capability: 15 LSTTL Loads
- Outputs Directly Interface to CMOS, NMOS, and TTL
- Operating Voltage Range: 2.0 to 6.0 V
- Low Input Current: 1.0 µA
- High Noise Immunity Characteristic of CMOS Devices
- In Compliance with the Requirements Defined by JEDEC Standard No. 7A
- Independent Clock Inputs for Shift Register and Latch
- Asynchronous Reset for the Shift Register
- Direct Interface with SPI Serial Data Port on CMOS MPUs and MCUs
Applications
The MC74HC595AFELG is widely used in various digital systems, including:
- Microprocessors and Microcontrollers
- Computer Networks
- Frequency Counters
- Digital Signal Processors
- LED Display Drivers
- Scanner and Printer Interfaces
Q & A
- What is the operating voltage range of the MC74HC595AFELG?
The operating voltage range is 2.0 to 6.0 V.
- What is the maximum clock frequency of the MC74HC595AFELG?
The maximum clock frequency ranges from 15 MHz to 35 MHz depending on the VCC voltage.
- Does the MC74HC595AFELG have independent clock inputs?
- What is the output drive capability of the MC74HC595AFELG?
The output drive capability is 15 LSTTL loads.
- Is the MC74HC595AFELG compatible with TTL outputs?
- What is the storage temperature range for the MC74HC595AFELG?
The storage temperature range is –65 to +150°C.
- Does the MC74HC595AFELG have an asynchronous reset?
- Can the MC74HC595AFELG interface with SPI serial data ports?
- What is the maximum propagation delay from shift clock to SQH?
The maximum propagation delay ranges from 28 to 210 ns depending on the VCC voltage.
- Is the MC74HC595AFELG compliant with JEDEC standards?
