Texas Instruments CD74HC175M96

Overview

CD74HC175M96 from Texas Instruments is a high-speed CMOS quad D-type flip-flop with asynchronous master reset, operating from 2V to 6V. It features complementary Q/Q̅ outputs per stage, positive-edge clock triggering, and common clock (CP) and master reset (MR) inputs. Designed for synchronous logic control in industrial timing circuits, it delivers 30ns typical propagation delay at 4.5V and supports 10 LSTTL loads.

For engineers reviewing the CD74HC175M96 datasheet, CD74HC175M96 pinout, CD74HC175M96 application, or CD74HC175M96 equivalent, key selection criteria include its -55°C to +125°C operating range, SOIC-16 package with tape-and-reel delivery (2500 pcs), guaranteed setup/hold times (20ns/5ns at 4.5V), and compatibility with both CMOS and TTL input logic levels.

Technical Context

The CD74HC175M96 implements four independent edge-triggered D-type latches sharing one clock and one asynchronous reset line. Its silicon-gate CMOS process enables low static current (≤160 µA over full temperature range) and high noise immunity (NIL/NIH = 30% of VCC at 5V).

All four flip-flops update simultaneously on the rising edge of CP; MR forces Qn = 0 and Q̅n = 1 regardless of clock state. Input capacitance is fixed at 10 pF, and output transition times are tightly controlled (15 ns typical at 4.5V, CL = 50 pF), ensuring predictable timing in cascaded register applications.

Key Specifications

Pinout & Package

CD74HC175M96 is housed in a 16-pin SOIC (Small Outline Integrated Circuit) package with standard 1.27 mm pitch, JEDEC MS-012AC compliant, moisture sensitivity level 1 (260°C peak reflow), and tape-and-reel packaging (2500 units per reel).

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74HC175N, CD74HC175M96 adds extended temperature qualification and SOIC packaging for automated assembly; compared with CD74HCT175M96, it trades TTL input compatibility for broader supply voltage adaptability and lower static power consumption.

Availability

CD74HC175M96 is available at Aetrix Electronics and suitable for industrial PLCs, avionics data acquisition, and digital test equipment requiring stable component supply across extreme temperatures and long production lifecycles.

Supply support for CD74HC175M96 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 over 90 years of innovation in high-reliability components.

The CD74HC175M96 belongs to TI's 74HC high-speed CMOS logic family, engineered for low-power, wide-voltage-range synchronous data storage in harsh-environment industrial and defense systems.

FAQ

What is the maximum clock frequency supported by CD74HC175M96?

The CD74HC175M96 supports up to 29 MHz maximum clock frequency at VCC = 6V and -55°C to +125°C, with 23 MHz guaranteed at full temperature range. At 4.5V, the device operates reliably up to 20 MHz. These values derive from measured propagation delay (45 ns max at 6V, CL = 50 pF) and setup/hold timing constraints, not theoretical limits.

Does CD74HC175M96 require external pull-up resistors on MR or CP inputs?

No, CD74HC175M96 does not require external pull-up resistors on MR or CP inputs. Its CMOS inputs have ≤1 µA leakage current and defined VIH/VIL thresholds (e.g., VIH = 3.15V min at 4.5V). Pull-ups are only needed if driving from open-drain sources or to ensure known state during power-up; unused inputs should be tied to VCC or GND.

Can CD74HC175M96 operate at 3.3V supply voltage?

Yes, CD74HC175M96 is fully specified for 3.3V operation (within its 2V–6V range). At 3.3V, it guarantees 44 ns max propagation delay, 100 ns max clock pulse width, and 20 ns setup time over -55°C to +125°C. Input thresholds scale proportionally (VIH ≈ 2.31V min, VIL ≈ 0.99V max), ensuring robust interfacing with 3.3V microcontrollers.

What is the meaning of the '96' suffix in CD74HC175M96?

The '96' suffix in CD74HC175M96 indicates tape-and-reel packaging: 2500 units per large reel, per TI's standard ordering convention. This format supports automated SMT placement and ensures ESD-safe handling. The base part CD74HC175M uses the same SOIC-16 package but ships in tubes or small reels (250 units).

How does the asynchronous reset (MR) behave during power-up?

During power-up, CD74HC175M96's MR pin must be held high (≥VIH) once VCC reaches operational threshold (~2V) to prevent spurious reset. TI recommends using an RC-based power-on reset circuit or dedicated supervisor IC to assert MR low for ≥100 ns after VCC stabilizes, ensuring all Q outputs initialize to logic 0 before first clock edge.