Overview
The MC74HC165AD, produced by onsemi, is an 8-bit serial or parallel-input/serial-output shift register. This device is part of the high-performance silicon-gate CMOS family and is identical in pinout to the LS165. It is designed to handle data input either in serial or parallel form and output the data serially. The MC74HC165AD is compatible with standard CMOS outputs and, with the use of pullup resistors, can also interface with LSTTL outputs. This makes it versatile for various digital circuit applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| VCC (DC Supply Voltage) | -0.5 to +6.5 | V |
| VIN (DC Input Voltage) | -0.5 to VCC + 0.5 | V |
| VOUT (DC Output Voltage) | -0.5 to VCC + 0.5 | V |
| IIN (DC Input Current, per Pin) | ±20 | mA |
| IOUT (DC Output Current, per Pin) | ±25 | mA |
| ICC (DC Supply Current, VCC and GND Pins) | ±50 | mA |
| TSTG (Storage Temperature) | -65 to +150 | °C |
| TL (Lead Temperature, 1 mm from Case for 10 Seconds) | 260 | °C |
| TJ (Junction Temperature Under Bias) | -55 to +125 | °C |
| fmax (Maximum Clock Frequency, 50% Duty Cycle) | 6 to 35 | MHz |
| tr, tf (Input Rise or Fall Time) | 1000 to 400 | ns |
Key Features
- Input Compatibility: Compatible with standard CMOS outputs and LSTTL outputs with pullup resistors.
- Data Input/Output: Data can be loaded into the register either in parallel or in serial form, and output is serial.
- Complementary Outputs: Complementary outputs from the last stage are available.
- Operating Voltage Range: Operates over a voltage range of 2.0 V to 6.0 V.
- High-Speed Operation: Supports high-speed operation with maximum clock frequencies up to 35 MHz.
- Low Power Consumption: Designed for low power consumption, making it suitable for battery-powered devices.
Applications
- Digital Circuit Design: Used in various digital circuit designs where serial-to-parallel or parallel-to-serial data conversion is required.
- Level Conversion: Can be used as a level converter for interfacing TTL or NMOS outputs to high-speed CMOS inputs.
- Embedded Systems: Suitable for use in embedded systems requiring serial data communication.
- Automotive and Industrial Control Systems: Used in automotive and industrial control systems due to its robust operating temperature range and compatibility with various logic families.
Q & A
- What is the MC74HC165AD?
The MC74HC165AD is an 8-bit serial or parallel-input/serial-output shift register produced by onsemi.
- What are the input compatibility options for the MC74HC165AD?
The inputs are compatible with standard CMOS outputs and LSTTL outputs with pullup resistors.
- How can data be loaded into the MC74HC165AD?
Data can be loaded into the register either in parallel or in serial form.
- What is the operating voltage range of the MC74HC165AD?
The operating voltage range is from 2.0 V to 6.0 V.
- What is the maximum clock frequency of the MC74HC165AD?
The maximum clock frequency is up to 35 MHz.
- What are the typical applications of the MC74HC165AD?
Typical applications include digital circuit design, level conversion, embedded systems, and automotive and industrial control systems.
- What is the storage temperature range for the MC74HC165AD?
The storage temperature range is from -65°C to +150°C.
- What is the junction temperature under bias for the MC74HC165AD?
The junction temperature under bias is from -55°C to +125°C.
- How many bits does the MC74HC165AD shift register have?
The MC74HC165AD has an 8-bit shift register.
- What package types are available for the MC74HC165AD?
The MC74HC165AD is available in a 16-SOIC package.
