Overview
The MC74HC165ADTR2 is an 8-bit serial or parallel-input/serial-output shift register produced by onsemi. This device is part of the 74HC series and is known for its high-performance silicon-gate CMOS technology. It offers the flexibility of loading data either in parallel or in serial form, making it versatile for various digital circuit applications. The MC74HC165ADTR2 is compatible with standard CMOS outputs and, with the use of pull-up resistors, can also interface with LSTTL outputs. It is particularly useful for level conversion between TTL or NMOS outputs and high-speed CMOS inputs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Bits per Element | 8 | |
| Number of Elements | 1 | |
| Operating Temperature | -55°C to 125°C | °C |
| Output Type | Differential | |
| Supply Voltage | 2.0 V to 6.0 V (HC), 4.5 V to 5.5 V (HCT) | V |
| Input Current | ±1 µA | µA |
| Output Drive Capability | 10 LSTTL Loads | |
| Maximum Clock Frequency | Up to 30 MHz (HCT) | MHz |
| Package/Case | 16-TSSOP | |
| Mounting Type | Surface Mount |
Key Features
- High-performance silicon-gate CMOS technology
- 8-bit shift register with complementary outputs from the last stage
- Data can be loaded either in parallel or in serial form
- Inputs compatible with standard CMOS outputs and LSTTL outputs with pull-up resistors
- Can be used as a level converter for interfacing TTL or NMOS outputs to high-speed CMOS inputs
- Low input current and high noise immunity characteristic of CMOS devices
- In compliance with JEDEC Standard No. 7A
- 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 MC74HC165ADTR2 is widely used in various digital circuit applications, including:
- Microprocessors and computer systems
- Computer networks and digital signal processors
- Frequency counters and other digital logic circuits
- Automotive and industrial control systems due to its AEC-Q100 qualification
Q & A
- What is the primary function of the MC74HC165ADTR2?
The MC74HC165ADTR2 is an 8-bit serial or parallel-input/serial-output shift register, allowing data to be loaded either in parallel or in serial form.
- What is the operating voltage range for the MC74HC165ADTR2?
The operating voltage range is 2.0 V to 6.0 V for the HC version and 4.5 V to 5.5 V for the HCT version.
- What type of outputs does the MC74HC165ADTR2 have?
The device has differential outputs.
- Is the MC74HC165ADTR2 compatible with LSTTL outputs?
Yes, with the use of pull-up resistors, it is compatible with LSTTL outputs.
- What is the maximum clock frequency for the MC74HC165ADTR2?
The maximum clock frequency is up to 30 MHz for the HCT version.
- What is the package type for the MC74HC165ADTR2?
The device is packaged in a 16-TSSOP (Thin Shrink Small Outline Package).
- Is the MC74HC165ADTR2 RoHS compliant?
Yes, the device is Pb-free, halogen-free, and RoHS compliant.
- What are some common applications for the MC74HC165ADTR2?
It is used in microprocessors, computer networks, digital signal processors, frequency counters, and automotive control systems.
- Does the MC74HC165ADTR2 meet automotive standards?
Yes, it is AEC-Q100 qualified and PPAP capable, making it suitable for automotive and other applications requiring unique site and control change requirements.
- How does the device handle unused inputs and outputs?
Unused inputs must be tied to an appropriate logic voltage level (either GND or VCC), and unused outputs must be left open.
