on October 24th 88

74HC164 Register: Pinout, Truth Table, and Datasheet

The 74HC164, a component from the 7400 logic family, is an 8-bit shift register that amplifies microcontroller capabilities through its ability to handle both serial inputs and parallel outputs. Its high-speed CMOS design supports effective expansion of output pins. When managing devices like LED arrays and LCDs, in contexts with limited microcontroller output pins, the 74HC164 offers substantial utility by transforming serial data into parallel output across its eight pins. This article delves into the many facets of the 74HC164, including its design, operational characteristics, and application, providing a comprehensive overview of its capabilities and benefits in modern electronics.

Catalog

What is the 74HC164?

The 74HC164 serves various purposes in electronic scenarios where extra output pins may be desired, functioning as an 8-bit shift register. It effectively processes serial input data while providing asynchronous parallel outputs, making it fitting for interfacing with switches, LEDs, sensors, or systems needing 8-bit parallel input. In LED arrays and displays, this component adeptly addresses microcontroller output pin constraints by simplifying connections and reducing circuit complexity. Its utility spans a variety of applications, such as data conversion and communication systems, facilitating smooth serial-to-parallel data transitions.

Equivalent and Alternative Models for 74HC164

• 74HC164D

• 74HCT164S14-13

• SN74HC164DR

• SN74LV164AD

• MC74HC164ADR2G

• CD74HC164M96G4

• MM74HC164MX

• MC74HC164D

• CD74HC164M

• MC74HC164AD

• MM74HC164M

• 933714070652

Pinout of 74HC164

Pin Number	Pin Name	Function
1	DSA	Serial Data Input
2	DSB	Serial Data Input
3	Q0	Data Output
4	Q1	Data Output
5	Q2	Data Output
6	Q3	Data Output
7	GND	Ground
8	CP	Clock Pulse -Positive Edge Triggered
9	MR	Master Reset - Asynchronous
10	Q4	Data Output
11	Q5	Data Output
12	Q6	Data Output
13	Q7	Data Output
14	Vcc	Supply Voltage

74HC164 Symbol and Footprint

Features of 74HC164

Voltage Range and Power Adaptability

The 74HC164 operates within a flexible voltage range from 2V to 6V, allowing seamless integration into various circuit environments. It adapts to both standard and reduced power levels, enhancing efficiency without the added complexity of voltage regulation Hardware. The embrace of modern design practices often aligns with this adaptability, guiding efficient power utilization.

Current and Power Dynamics

The 74HC164 is well-suited for low-power scenarios, drawing a maximum current of just 100µA, making it ideal for battery-operated devices. Its output supports a current capacity of ±25mA, providing strong signal driving performance. Within larger systems, this efficiency contributes to a reduced power footprint, potentially extending device life and improving performance.

Clock Frequency and Data Processing

Handling clock frequencies up to 54MHz, the 74HC164 meets rapid data processing and transmission needs in high-speed applications like communication systems. Components with such capacities can notably enhance processing speed and efficiency, fostering advancements in technology that demand swift and reliable data handling.

Energy Efficiency and CMOS Technology

Utilizing CMOS technology, the 74HC164 exemplifies low-power consumption in today's electronic device design. CMOS's minimal energy requirements during idle phases help lessen thermal output, addressing concerns over device overheating and extending operational lifespan.

Packaging and Design Flexibility

Available in various package types such as PDIP and SOIC, the 74HC164 offers design the freedom to choose the ideal form factor for their applications. Whether compactness or prototype handling ease is prioritized, this versatility supports streamlined design processes and scalable production methods.

Elevated ESD Protection

Enhanced ESD protection surpassing JESD 22 standards adds a layer of security against electrostatic discharge damage. This aspect bolsters the semiconductor's durability and reliability within static-prone environments. In practical applications, strong ESD safeguards decrease failure rates and reduce maintenance costs, leading to greater device consistency and customer satisfaction.

Specifications of the 74HC164D

Type	Parameter
Factory Lead Time	12 Weeks
Package / Case	SOIC (0.154, 3.90mm Width)
Number of Pins	14
Operating Temperature	-40°C~125°C
Series	74HC
Part Status	Active
Number of Terminations	14
Terminal Position	DUAL
Peak Reflow Temperature (Cel)	NOT SPECIFIED
Frequency	78MHz
Function	Serial to Parallel
Supply Voltage-Max (Vsup)	6V
Number of Circuits	8
Family	HC/UH
Output Polarity	TRUE
Propagation Delay (tpd)	240 ns
Count Direction	RIGHT
REACH SVHC	No SVHC
Lead Free	Lead Free
Mounting Type	Surface Mount
Surface Mount	YES
Number of Elements	1
Packaging	Cut Tape (CT)
Published	2016
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Voltage - Supply	2V~6V
Terminal Form	GULL WING
Supply Voltage	4.5V
Time@Peak Reflow Temperature Max (s)	NOT SPECIFIED
Output Type	Push-Pull
Supply Voltage-Min (Vsup)	2V
Number of Bits	8
Logic Type	Shift Register
Trigger Type	POSITIVE EDGE
fmax-Min (MHz)	24 MHz
Width	3.9mm
RoHS Status	RoHS Compliant

Utilizing the 74HC164 in Advanced Designs

The seamless integration of the 74HC164 with microcontrollers involves minimal pin usage, enhancing space and efficiency in circuit design. The clock signal gracefully orchestrates the data transfer from two serial inputs to parallel outputs, creating a smooth and effective process. When outputs reflect data across an 8-bit port, it ensures effortless data management with pin connections. Acting as the core rhythm of data transfer, the clock signal guarantees data movement at precise intervals. This synchronization imbues digital systems with accuracy and reliability. Others find immense value in the clock synchronization of the 74HC164, especially in timing-sensitive scenarios like signal processing.

The 74HC164 enhances data management by smoothly converting serial input into parallel output. This reduces wiring complexity and decreases the chance for errors, making system design simpler and accelerating development cycles with easier troubleshooting. The 74HC164 is prized for its straightforward functionality and dependability. Its use is often considered in digital displays or systems demanding multiple outputs but limited control lines. Many admire its capacity to extend I/O capabilities without imposing extra pin burdens on microcontrollers. The tactical benefit of using the 74HC164 lies in addressing the constraints of limited I/O ports on microcontrollers. By shifting outputs from serial to parallel, you can strategically reallocate microcontroller resources, unlocking additional functionalities and enhancing performance within existing hardware limits.

Truth Table for 74HC164

Applications of 74HC164

Versatile Logic Applications

The 74HC164 serves as a versatile entity in general-purpose logic, bringing advantages to electronic systems by streamlining multiple data streams. Its integration allows to improve efficiency and performance across diverse applications.

Integration in Consumer Electronics

In devices like personal computers and televisions, the 74HC164 enriches data processing and control. By facilitating smoother operations, it enhances device responsiveness, enriching and supporting demanding environments.

Peripheral Device Enhancement

Used in peripherals such as keyboards and printers, the 74HC164 enhances functionality through its data handling capabilities. It ensures seamless interaction between devices and host systems, promoting synchronized operations.

Networking Device Optimization

For networking devices, the 74HC164 aids in swift data transfer and management. It organizes and processes information serially, boosting network speed and reliability. Its use helps alleviate bottlenecks, contributing to efficient network infrastructures.

Packaging of 74HC164

74HC164 Manufacturer Information

Toshiba gains recognition for its diversified portfolio in electronics, influencing sectors like semiconductors and digital technologies. Its capacity to deliver robust and innovative solutions is evident across various domains, including consumer electronics and intricate IT infrastructures. Toshiba demonstrates a deep commitment to innovation through consistent investment in research and development, ensuring it meets the dynamic needs of modern markets. This dedication shines through in its development of advanced semiconductors in numerous applications such as communication devices and industrial machinery. Anticipating tech trends, Toshiba strategically addresses forthcoming challenges and seizes new opportunities. Through groundbreaking work in quantum computing and AI technologies, Toshiba shapes future paradigms, guiding the course of technological progress and maintaining its leadership in a competitive marketplace.

Datasheet PDF

74HC164D Datasheets:

74HC164D.pdf

Frequently Asked Questions [FAQ]

1. What’s the difference between 74LS164 chip and 74HC164 chip?

The 74LS164 utilizes TTL technology, operating optimally with a stable 5V supply. This requirement aligns well with systems following TTL logic standards, though it results in higher power consumption. On the other hand, the 74HC164 is based on CMOS technology, offering an operational voltage range from 2V to 6V. This range provides adaptability for energy-efficient designs, fitting seamlessly into battery-powered devices. Many choose between them by weighing power consumption and supply voltage, always guided by system compatibility and the specific needs of each application.

2. What’s the difference between 74HC164 and 74HC595?

The 74HC595 features an output latch and an OE (Output Enable), which enhances the stability of output data. This is useful for applications demanding consistent and synchronized control, minimizing the likelihood of glitches during high-speed tasks. In contrast, the 74HC164 provides direct shift output with an asynchronous reset, offering simplicity in scenarios where minimal external management is needed. Circuit design with these components balances between control complexity and operational simplicity, presenting opportunities for creative solutions in engineering challenges.

3. What is 74HC164?

The 74HC164 is identified as an 8-bit shift register with serial input and parallel output, simplifying data management when expanding outputs from a microcontroller. It is commonly employed to create efficient data pipelines, driving multiple outputs in LED displays or similar arrays. By leveraging its straightforward yet adaptable design, you can extend functionality without complicating the circuitry. This reflects a preference for simplicity and efficiency in design solutions, aligning with broader trends towards streamlined in electronics development.