Texas Instruments CD40175BPWG4

Overview

CD40175BPWG4 from Texas Instruments is a quad D-type flip-flop IC with master-slave latching, 16-pin TSSOP package, ±0.5V input threshold, 15V max supply voltage, and -55°C to +125°C operating temperature range. It serves as synchronous edge-triggered storage in digital control logic, timing sequencers, and state-machine registers.

For engineers reviewing the CD40175BPWG4 datasheet, CD40175BPWG4 pinout, CD40175BPWG4 application, or CD40175BPWG4 equivalent, key selection considerations include its CMOS-compatible input thresholds, rail-to-rail output swing, propagation delay consistency across temperature, and compatibility with legacy 4000B-series logic families.

Technical Context

The CD40175BPWG4 implements four independent D-type flip-flops sharing a common clock and reset, each with true and complement outputs. Its master-slave architecture ensures single-cycle setup/hold timing compliance and eliminates race conditions in cascaded register stages.

Designed for mixed-voltage system interfacing, it supports V_DD from 3V to 15V, exhibits high noise immunity (typ. 45% V_DD), and maintains stable DC transfer characteristics over full military temperature range without external biasing.

Key Specifications

Pinout & Package

CD40175BPWG4 uses a 16-pin Thin Shrink Small-Outline Package (TSSOP-PW), 4.4 mm × 5.0 mm body, 1.2 mm max height, 0.65 mm lead pitch, and exposed pad not electrically connected.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CD40175BM96 and MC14013BDR2G, the CD40175BPWG4 delivers optimal density and thermal performance in space-constrained automotive and industrial PCBs while maintaining full 4000B-series interoperability and military temperature compliance.

Availability

CD40175BPWG4 is available at Aetrix Electronics and suitable for industrial automation controllers, automotive body electronics, and legacy microcontroller peripheral expansion requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for CD40175BPWG4 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 U.S.-based semiconductor company founded in 1930, specializing in analog, embedded processing, and logic ICs with broad industrial and automotive qualification.

The CD40175BPWG4 belongs to TI's legacy 4000B-series CMOS logic family, designed for high-reliability, low-power digital control in harsh environments where modern logic families lack extended temperature or voltage range support.

FAQ

What is the maximum clock frequency supported by the CD40175BPWG4?

The CD40175BPWG4 does not specify a maximum clock frequency in its datasheet; instead, it defines minimum pulse width requirements - 60 ns minimum high/low time at 5V supply. System-level maximum frequency depends on propagation delay (120 ns max) and external load; typical usable clock rate is ≤3 MHz for robust timing margin in industrial designs using CD40175BPWG4.

Does the CD40175BPWG4 have Schmitt-trigger inputs?

No, the CD40175BPWG4 does not incorporate Schmitt-trigger inputs. Its clock and data inputs follow standard CMOS threshold behavior (V_DD/2 ±0.5V), requiring clean, monotonic signal edges. External RC filtering or dedicated Schmitt buffers like SN74LVC1G14 are recommended if interfacing with slow-rising or noisy control signals in systems using CD40175BPWG4.

Can the CD40175BPWG4 operate from a 3.3V supply?

Yes, the CD40175BPWG4 is fully specified to operate from 3V to 15V, including 3.3V nominal supplies. At 3.3V, output drive capability reduces to ±1.5 mA, and propagation delay increases to 220 ns max, but all logic functions remain valid. This makes CD40175BPWG4 suitable for mixed-voltage systems where 3.3V microcontrollers control 12V analog subsystems via CD40175BPWG4 latches.

Is the exposed pad on the CD40175BPWG4 package electrically connected?

No, the exposed pad on the CD40175BPWG4 TSSOP package is not electrically connected to any internal node. It serves only as a mechanical thermal relief structure and may be left floating or tied to ground for improved thermal conduction - no electrical function or specification depends on its connection state in CD40175BPWG4.

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

The master reset (MR) pin on CD40175BPWG4 is active-high and asynchronous. During power-up, if MR is held low (≤0.5V), outputs remain in an indeterminate state until MR rises above the input threshold; if MR is pulled high externally at power-on, all Q outputs initialize to logic low. For deterministic startup in CD40175BPWG4-based systems, a dedicated RC reset circuit or microcontroller GPIO assertion is recommended.