Texas Instruments CD74HC174M96

Overview

CD74HC174M96 from Texas Instruments is a high-speed CMOS hex D-type flip-flop with asynchronous common reset, designed for synchronous data latching in digital control and timing circuits. It features buffered positive-edge-triggered clock input, operates from 2V to 6V, supports -55°C to +125°C temperature range, and delivers 6 flip-flops per package with propagation delay as low as 28 ns (at VCC = 6V, CL = 50 pF) in industrial and aerospace systems.

For engineers reviewing the CD74HC174M96 datasheet, CD74HC174M96 pinout, CD74HC174M96 application, or CD74HC174M96 equivalent, key selection criteria include its 16-pin SOIC package, guaranteed operation across extended temperature, HC logic family compatibility, and precise setup/hold timing requirements for reliable edge-triggered state capture.

Technical Context

The CD74HC174M96 implements six master-slave D-type flip-flops sharing one common clock (CP) and one asynchronous master reset (MR), enabling synchronized storage of six parallel data bits on each rising clock edge. Its silicon-gate CMOS architecture ensures low static power consumption (ICC ≤ 160 µA over full temperature range) while maintaining speed comparable to LSTTL.

Input thresholds are CMOS-compatible (VIH = 1.5V min at VCC = 2V; VIL = 0.5V max), and output drive capability supports up to 10 LSTTL loads. Propagation delay (tPLH/tPHL) and transition times (tTLH/tTHL) are tightly balanced across voltage and temperature, ensuring predictable timing behavior in critical control loops and state machines.

Key Specifications

Pinout & Package

CD74HC174M96 is housed in a 16-lead SOIC (Small Outline Integrated Circuit) package with standard JEDEC MS-012AC dimensions (body width 3.9 mm, lead pitch 1.27 mm), RoHS-compliant NiPdAu lead finish, and moisture sensitivity level (MSL) Level-1 (unlimited floor life).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar hex D-type flip-flop with reset applications.

Compared with CD74HCT174M96, the CD74HC174M96 provides broader supply range and higher noise margins but requires CMOS-level input drive; versus SN74HC174DR, it shares identical electrical behavior but differs only in part numbering convention and historical qualification lineage.

Availability

CD74HC174M96 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, aerospace avionics data capture, and automotive powertrain control requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for CD74HC174M96 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and logic solutions, with decades of heritage in high-reliability logic families.

The CD74HC174M96 belongs to TI's CD74HC high-speed CMOS logic series, engineered for robust performance in extended-temperature industrial, defense, and space applications where timing precision and environmental resilience are critical.

FAQ

What is the maximum clock frequency supported by CD74HC174M96?

The CD74HC174M96 supports a maximum clock frequency of 24 MHz under worst-case conditions (-55°C to +125°C, VCC = 4.5V). At VCC = 6V and 25°C, fMAX reaches 35 MHz. These values derive from minimum clock pulse width (14 ns at 6V) and propagation delay constraints, and must be validated against actual load capacitance and PCB trace routing in the target design.

Does CD74HC174M96 support 3.3V operation?

Yes, CD74HC174M96 fully supports 3.3V operation within its specified 2V–6V supply range. At VCC = 3.3V, VIH is guaranteed ≥ 2.0V and VIL ≤ 1.1V, providing adequate noise margin for typical 3.3V CMOS systems. Propagation delay increases to ~40 ns (CL = 50 pF), which remains suitable for most medium-speed digital interfaces.

Is CD74HC174M96 pin-compatible with CD74HCT174M96?

Yes, CD74HC174M96 is pin-compatible with CD74HCT174M96 - both use identical 16-pin SOIC packages and share identical pin assignments for MR, CP, D0–D5, Q0–Q5, VCC, and GND. However, they differ in input threshold specifications and supply voltage ranges, so direct substitution requires verification of upstream driver compatibility.

What is the purpose of the MR (Master Reset) pin on CD74HC174M96?

The MR pin on CD74HC174M96 is an asynchronous active-low reset that forces all six Q outputs to logic low immediately, independent of the clock signal. When MR is asserted (low), it overrides all D-input states and clock edges. The minimum MR pulse width is 14 ns at VCC = 6V, and the pin must be pulled high (via resistor or driver) during normal operation to enable clocked data transfer.

Can CD74HC174M96 drive LED indicators directly?

CD74HC174M96 can drive low-current LEDs (≤ 5 mA) in sink configuration (LED anode to VCC, cathode to Q output), leveraging its -25 mA output sink capability. However, for higher-brightness or multi-LED loads, external buffer transistors or dedicated LED drivers are recommended to avoid exceeding output current limits and degrading timing margins.