Texas Instruments CD40175BM96

Overview

CD40175BM96 from Texas Instruments is a quad D-type flip-flop IC with independent clock and reset inputs per latch, 16-pin SOIC package, -55°C to +125°C operating temperature range, 15 V max supply voltage, and CMOS logic compatibility. It functions as a synchronous edge-triggered storage element in digital control, timing, and data buffering circuits.

For engineers reviewing the CD40175BM96 datasheet, CD40175BM96 pinout, CD40175BM96 application, or CD40175BM96 equivalent, key selection considerations include its dual-rail CMOS operation, individual asynchronous reset capability per latch, low static current draw, and compatibility with legacy 4000B-series logic families in industrial and aerospace systems.

Technical Context

The CD40175BM96 implements four independent D-type latches, each with dedicated CLK and RESET inputs, enabling selective updating of individual flip-flops without affecting others. Its CMOS architecture delivers high noise immunity (typ. 50% V_DD), rail-to-rail input thresholds, and symmetrical propagation delays (t_PLH/t_PHL ≤ 150 ns at 10 V).

It operates across a wide supply range (3 V to 15 V), supports both positive-edge clocking and active-low asynchronous reset, and maintains guaranteed logic levels over full military-grade temperature extremes (-55°C to +125°C) with no internal pull-ups or level-shifting circuitry required.

Key Specifications

Pinout & Package

CD40175BM96 is housed in a 16-pin SOIC (D) package, 7.5 mm × 5.0 mm body size, 1.27 mm lead pitch, and 1.75 mm maximum height per JEDEC MS-012. Pin 1 is located in Quadrant Q1 per tape-and-reel orientation standard.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad D-type latch applications.

Compared with CD40175BE and CD40175BNSR, the CD40175BM96 offers optimal balance of automated assembly compatibility (2500-piece tape-and-reel), compact SOIC footprint, and proven reliability in extended-temperature industrial deployments-making it the preferred choice for volume surface-mount manufacturing.

Availability

CD40175BM96 is available at Aetrix Electronics and suitable for industrial control sequencing, aerospace avionics monitoring, and automotive powertrain diagnostics requiring stable component supply across long product lifecycles.

Supply support for CD40175BM96 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 CD40175BM96 belongs to TI's legacy 4000B-series CMOS logic family, designed specifically for robust, low-power digital control in harsh-environment applications where wide voltage range and temperature stability are essential.

FAQ

What is the maximum clock frequency supported by the CD40175BM96?

The CD40175BM96 does not specify a hard maximum clock frequency in its datasheet; instead, timing is governed by propagation delay and setup/hold requirements. At V_DD = 10 V, t_PLH/t_PHL ≤ 150 ns and t_su = 30 ns, supporting reliable operation up to approximately 5 MHz in well-designed layouts. For CD40175BM96 designs targeting higher frequencies, verify timing margins with worst-case voltage and temperature conditions.

Does the CD40175BM96 support 3.3 V logic systems?

Yes, the CD40175BM96 operates down to 3 V supply voltage and meets full logic threshold specifications (V_IL ≤ 0.3 V_DD, V_IH ≥ 0.7 V_DD) at that level. However, output drive strength and propagation delay degrade at lower voltages; at 3.3 V, CD40175BM96 delivers ~0.5 mA output current and ~300 ns typical propagation delay-sufficient for low-speed interfacing but not high-speed bus driving.

Is the CD40175BM96 pin-compatible with the CD40175BE?

Yes, the CD40175BM96 and CD40175BE share identical pin assignments, logic function, and electrical characteristics. The only differences are package type (SOIC vs. PDIP), packaging format (tape-and-reel vs. tube), and mechanical dimensions. No PCB redesign is needed when migrating from CD40175BE to CD40175BM96, though reflow profile and stencil design must match SOIC requirements.

What is the purpose of the separate reset inputs on the CD40175BM96?

The CD40175BM96 provides four independent active-low reset inputs (R1–R4), one per D latch, allowing selective clearing of individual stored bits without affecting other latches. This enables precise fault recovery, channel-specific initialization, or partial state machine reset-functionality unavailable in single-reset quad latch alternatives. Each reset overrides clock action when asserted, ensuring deterministic behavior.

Can unused inputs on the CD40175BM96 be left floating?

No, unused inputs on the CD40175BM96 must be tied to V_DD or V_SS to prevent metastability, excessive current draw, or oscillation. CMOS inputs have high impedance and undefined logic states when floating; this can cause increased power consumption and unpredictable latch behavior. For CD40175BM96 designs, tie all unused D, CLK, and RESET inputs to a defined rail using 10 kΩ pull-up or pull-down resistors as appropriate.