CD54HC175F3A

Overview

The CD54HC175F3A is a high-speed CMOS integrated circuit designed for digital data storage and transfer. It belongs to the HC logic family, known for its balance of speed and power efficiency. This quad D-type flip-flop is widely used in industrial control systems, communication devices, and consumer electronics. As a member of the 54HC series, it offers military-grade temperature tolerance (-55°C to 125°C), making it suitable for harsh environments. The device features complementary outputs (Q and Q̅) for each flip-flop, providing flexibility in circuit design.

Structure and Working Principle

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The CD54HC175F3A contains four independent D-type flip-flops with common clock and clear inputs. Each flip-flop stores one bit of data, which appears at the output when triggered by the clock signal's positive edge. The asynchronous clear input resets all flip-flops when activated. The internal structure uses CMOS technology, combining p-channel and n-channel MOSFETs to achieve high-speed operation (typical propagation delay of 13ns at 5V) while maintaining low power consumption. The inputs are compatible with standard CMOS output levels and have Schmitt-trigger action for improved noise immunity.

Key Features

The CD54HC175F3A offers several notable characteristics: high noise immunity (30% of supply voltage typical), balanced propagation delays, and symmetrical output drive capability. Its operating voltage range of 2V to 6V makes it versatile for various digital systems. Additional features include low power consumption (static current of 1μA maximum at 25°C) and high output drive current (±5.2mA at 4.5V). The device is lead-free and RoHS compliant, meeting modern environmental standards for electronic components.

Application Areas

This IC finds extensive use in digital systems requiring temporary data storage or synchronization. Common applications include shift registers, memory address registers, and bus interfacing circuits in computer peripherals. Industrial applications encompass programmable logic controllers (PLCs), process control systems, and instrumentation equipment. In consumer electronics, it appears in digital displays, gaming hardware, and audio/video processing devices where reliable data latching is required.

Maintenance and Precautions

CD54HC175F3A TI SMD 23+ 电子元器件 DSP数字信号处理器

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Proper handling is essential for maintaining the CD54HC175F3A's performance and longevity. Always use electrostatic discharge (ESD) protection when handling these components. Avoid applying voltages beyond the specified limits (absolute maximum rating: -0.5V to 7V). For circuit design, ensure proper decoupling capacitors are placed near the power pins. Unused inputs should be tied to either VCC or ground to prevent floating conditions that could increase power consumption or cause erratic operation.

B2B Procurement Guide

When procuring CD54HC175F3A ICs in bulk, verify the manufacturer's certification and product traceability. Major distributors typically offer quantity discounts starting at 100-unit orders. Lead times vary but generally range from 2-8 weeks for large industrial orders. Key considerations include packaging type (SOIC-16 is common), operating temperature range (commercial, industrial, or military grades), and RoHS compliance status. For critical applications, request sample units for testing before placing large orders.