Overview
The MC74HC595AFL1 is an 8-bit serial-input/serial or parallel-output shift register with latched 3-state outputs, manufactured by onsemi. This device combines an 8-bit shift register and an 8-bit D-type latch, allowing it to accept serial data and provide 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 for high-performance applications and is compatible with CMOS, NMOS, and TTL outputs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Voltage Range | 2.0 to 6.0 | V |
| Maximum Clock Frequency (50% Duty Cycle) | 15 MHz (at VCC = 2.0 V), 30 MHz (at VCC = 3.0 V), 35 MHz (at VCC = 4.5 V), 40 MHz (at VCC = 6.0 V) | MHz |
| Maximum Propagation Delay, Shift Clock to SQH | 140 ns (at VCC = 2.0 V), 100 ns (at VCC = 3.0 V), 28 ns (at VCC = 4.5 V), 24 ns (at VCC = 6.0 V) | ns |
| Maximum Propagation Delay, Reset to SQH | 145 ns (at VCC = 2.0 V), 100 ns (at VCC = 3.0 V), 29 ns (at VCC = 4.5 V), 25 ns (at VCC = 6.0 V) | ns |
| DC Input Current, per Pin | ±20 | mA |
| DC Output Current, per Pin | ±35 | mA |
| Storage Temperature | -65 to +150 | °C |
| Lead Temperature (1 mm from Case for 10 Seconds) | 260 | °C |
| Package Type | 16-SOIC | |
| Mounting Type | Surface Mount |
Key Features
- Output Drive Capability: 15 LSTTL Loads
- Outputs Directly Interface to CMOS, NMOS, and TTL
- Low Input Current: 1.0 μA
- High Noise Immunity Characteristic of CMOS Devices
- In Compliance with the Requirements Defined by JEDEC Standard No. 7A
- Improved Propagation Delays, 50% Lower Quiescent Power, and Improved Input Noise and Latchup Immunity compared to HC595
- Pb-Free, Halogen Free, and RoHS Compliant
- AEC-Q100 Qualified and PPAP Capable for Automotive and Other Applications Requiring Unique Site and Control Change Requirements
Applications
The MC74HC595AFL1 is suitable for a variety of applications, including:
- Display Drivers: For driving LED displays, LCD displays, and other types of display systems.
- Serial to Parallel Conversion: In systems where serial data needs to be converted to parallel data for processing or display.
- Microcontroller and Microprocessor Interfaces: Directly interfaces with the SPI serial data port on CMOS MPUs and MCUs.
- Automotive Systems: Due to its AEC-Q100 qualification, it is suitable for automotive applications requiring high reliability.
- General Digital Logic Circuits: For any application requiring serial-in/parallel-out shift register functionality.
Q & A
- What is the primary function of the MC74HC595AFL1?
The MC74HC595AFL1 is an 8-bit serial-input/serial or parallel-output shift register with latched 3-state outputs.
- What is the operating voltage range of the MC74HC595AFL1?
The operating voltage range is from 2.0 to 6.0 volts.
- What is the maximum clock frequency of the MC74HC595AFL1?
The maximum clock frequency varies with voltage: 15 MHz at 2.0 V, 30 MHz at 3.0 V, 35 MHz at 4.5 V, and 40 MHz at 6.0 V.
- What types of outputs does the MC74HC595AFL1 have?
The device has three-state parallel outputs.
- Is the MC74HC595AFL1 compatible with TTL outputs?
Yes, with pullup resistors, the inputs are compatible with TTL outputs.
- What is the storage temperature range for the MC74HC595AFL1?
The storage temperature range is from -65°C to +150°C.
- Is the MC74HC595AFL1 RoHS compliant?
Yes, the device is Pb-Free, Halogen Free, and RoHS compliant.
- What is the package type of the MC74HC595AFL1?
The package type is 16-SOIC.
- What are some common applications of the MC74HC595AFL1?
Common applications include display drivers, serial to parallel conversion, microcontroller and microprocessor interfaces, and automotive systems.
- Does the MC74HC595AFL1 have any special qualifications for automotive use?
Yes, it is AEC-Q100 qualified and PPAP capable for automotive and other applications requiring unique site and control change requirements.
