Texas Instruments CD40175BPW
- Part No.:
- CD40175BPW
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
CD40175BPW.pdf
- Description:
- IC FF D-TYPE SNGL 4BIT 16TSSOP
- Quantity:
- Payment:

- Shipping:

Inventory:2,759
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Product details
Overview
CD40175BPW from Texas Instruments is a quad D-type flip-flop IC in a 16-pin TSSOP package, operating across -55°C to +125°C, with supply voltage range 3V–18V, propagation delay ≤120 ns at 5V, and static power dissipation <1 µA at 25°C. It serves as a synchronous edge-triggered storage element in digital control logic, timing sequencers, and state-machine registers.
For engineers reviewing the CD40175BPW datasheet, CD40175BPW pinout, CD40175BPW application, or CD40175BPW equivalent, key selection considerations include its CMOS-compatible input thresholds, rail-to-rail output swing, low quiescent current, and compatibility with legacy CD4000B-series logic families in space-constrained industrial control and instrumentation designs.
Technical Context
The CD40175BPW implements four independent positive-edge-triggered D flip-flops with asynchronous master reset (MR) shared across all sections. Each stage features complementary Q and Q̅ outputs, enabling direct use in toggle, latch, and register configurations without external inversion.
It uses standard CMOS silicon-gate process technology, delivering high noise immunity (typ. 50% VDD), symmetrical output drive capability (±4.2 mA at VDD = 15 V), and full static operation - no minimum clock frequency required. Input hysteresis is not included; inputs are purely threshold-based at 50% VDD.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | CD4000B-series CMOS - ensures compatibility with legacy 4000-series designs and wide VDD tolerance. |
| Supply Voltage Range | 3V to 18V - supports single-supply operation across battery-powered, industrial, and mixed-voltage systems. |
| Propagation Delay (tPLH/tPHL) | ≤120 ns at VDD = 5V - enables reliable operation up to ~3 MHz clock rates in non-critical timing paths. |
| Output Drive Current | ±4.2 mA at VDD = 15V - sufficient to directly drive LEDs, small relays, or interface with TTL/CMOS loads without buffers. |
| Quiescent Supply Current | <1 µA at 25°C - critical for ultra-low-power standby modes in energy-sensitive embedded controllers. |
| Operating Temperature | -55°C to +125°C - qualified for extended-temperature industrial, automotive under-hood, and aerospace environments. |
Pinout & Package
TSSOP-16 (PW) package: 4.4 mm × 5.0 mm body, 1.2 mm max height, 0.65 mm lead pitch, exposed pad not present, RoHS-compliant NiPdAu lead finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 9, 13 | Data Input (DA–DD) | Asynchronous data inputs for each of four flip-flop sections; CMOS-compatible thresholds at 50% VDD. |
| 2, 6, 10, 14 | Q Output (QA–QD) | True output of corresponding D flip-flop; rail-to-rail swing, capable of sourcing/sinking ≥4 mA. |
| 3, 7, 11, 15 | Q̅ Output (Q̅A–Q̅D) | Inverted output complementing each Q; eliminates need for external inverters in toggle or differential bus applications. |
| 4 | CLK | Common positive-edge clock input for all four flip-flops; triggers simultaneous latching on rising transition. |
| 8 | VSS | Ground reference terminal; must be connected to system common return for proper CMOS biasing. |
| 16 | VDD | Positive supply terminal; accepts 3V–18V DC; decoupling capacitor (0.1 µF) recommended near pin. |
| 12 | MR (Master Reset) | Active-high asynchronous reset; forces all Q outputs low regardless of clock or data state. |
Key Features
| Feature | Design Value |
|---|---|
| Quad independent D flip-flops | Four fully isolated storage elements in one package reduce board area and interconnect complexity vs discrete solutions. |
| Complementary Q/Q̅ outputs per stage | Eliminates need for external inverters in applications requiring both true and inverted latched signals (e.g., bidirectional bus control). |
| Wide supply voltage range (3V–18V) | Enables drop-in replacement across legacy 5V, modern 3.3V, and high-voltage industrial 12V/15V logic domains. |
| Low static current (<1 µA) | Supports always-on monitoring circuits and battery-backed state retention without measurable drain impact. |
| Extended temperature rating (−55°C to +125°C) | Validated for deployment in harsh environments including motor drives, downhole tools, and avionics subsystems. |
Applications
| Industrial Sequence Controller | Legacy System Logic Upgrade |
|---|---|
|
Use Scenario: A programmable logic controller (PLC) module requires synchronized state storage for 4-bit status flags during cyclic scan execution. IC Role / Device Role / Timing Role: CD40175BPW acts as a clock-synchronized 4-bit register, capturing sensor inputs on each scan cycle edge while maintaining stable outputs between updates. Use Value: Its guaranteed setup/hold timing and rail-to-rail outputs ensure deterministic flag capture without external conditioning, reducing BOM count by eliminating level shifters or buffers. |
Use Scenario: Retrofitting obsolete 40175BE PDIP parts in aging test equipment where PCB real estate is constrained and thermal management is limited. IC Role / Device Role / Timing Role: CD40175BPW replaces through-hole logic with surface-mount equivalent, retaining identical logic function and timing behavior while enabling automated assembly. Use Value: The TSSOP package reduces footprint by >70% vs PDIP and lowers thermal resistance, improving long-term reliability in sealed enclosures without airflow. |
| Power Sequencing Monitor | LED Array State Register |
|
Use Scenario: Monitoring startup sequence of multi-rail power supplies (3.3V, 5V, 12V) in telecom line cards, requiring latched fault indicators per rail. IC Role / Device Role / Timing Role: CD40175BPW stores individual power-good assertions triggered by comparator outputs, held until manual or software reset clears MR. Use Value: Asynchronous MR allows centralized fault clearing; complementary outputs drive dual-color LEDs directly, eliminating discrete transistor drivers. |
Use Scenario: Controlling 4-channel LED brightness sequencing in an industrial HMI panel using PWM-modulated D inputs synchronized to a global frame clock. IC Role / Device Role / Timing Role: CD40175BPW holds the current LED enable state for each channel, updated only on frame boundaries to prevent flicker or partial updates. Use Value: Low propagation delay ensures precise timing alignment across channels; Q̅ outputs drive sinking LEDs without additional inverters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad D-type flip-flop applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CD40175BM96 | SOIC-16 package (5.3 mm × 10.2 mm), same electrical specs, MSL Level-1, but larger footprint and higher thermal mass. | Better suited for prototyping or hand-soldered boards where TSSOP reflow is unavailable; less suitable for high-density layouts. | Select CD40175BM96 if board assembly lacks fine-pitch reflow capability or requires mechanical robustness over miniaturization. |
| MC14013BDR2G | Onsemi dual D flip-flop (2×) in SOIC-14; requires two devices for quad functionality; slightly faster (tPD ≤90 ns @ 15V) but no Q̅ outputs per section. | Needs external inverters for complemented outputs; increases component count and layout area; not pin-compatible. | Choose MC14013BDR2G only when higher speed is mandatory and Q̅ outputs are generated externally or unused. |
Compared with CD40175BM96 and MC14013BDR2G, the CD40175BPW delivers optimal balance of density, full functionality (integrated Q/Q̅), and drop-in compatibility with legacy CD4000B designs - making it the preferred choice for new industrial control and instrumentation layouts where space and BOM simplicity are prioritized.
Availability
CD40175BPW is available at Aetrix Electronics and suitable for industrial PLC modules, legacy system upgrades, and power sequencing monitors requiring stable component supply, long-lifecycle assurance, and RoHS-compliant packaging.
Supply support for CD40175BPW 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 with core expertise in analog, embedded processing, and logic technologies, serving industrial, automotive, and communications markets since 1930.
The CD4000B logic family - including CD40175BPW - was designed for robust, wide-voltage-range digital control in harsh environments, emphasizing interoperability, longevity, and backward compatibility across decades of system deployments.
FAQ
Is CD40175BPW pin-compatible with CD40175BE (PDIP-16)?
Yes, CD40175BPW is functionally and electrically identical to CD40175BE, with identical pin numbering and signal assignments. However, the TSSOP package has different physical dimensions and soldering requirements - PCB layout must follow TI's PW0016A land pattern, not the PDIP footprint. No logic redesign is needed, but mechanical adaptation is required.
What is the maximum clock frequency supported by CD40175BPW?
The CD40175BPW does not specify a maximum clock frequency in its datasheet because it is a static CMOS device. Its usable clock rate depends on propagation delay: at VDD = 5V, tPD ≤120 ns implies reliable operation up to approximately 3 MHz in typical conditions. At VDD = 15V, tPD improves to ≤40 ns, supporting >10 MHz in controlled environments.
Does CD40175BPW include Schmitt-trigger inputs?
No, CD40175BPW does not include Schmitt-trigger inputs. Its D and CLK inputs use standard CMOS threshold detection at approximately 50% VDD, with no hysteresis. For noisy signal environments, external RC filtering or dedicated Schmitt-trigger buffers (e.g., CD40106B) must be used ahead of CD40175BPW inputs.
Can the master reset (MR) pin of CD40175BPW be left floating?
No, MR must never be left floating. CD40175BPW has no internal pull-up or pull-down on MR. An unconnected MR pin may float to an indeterminate voltage, causing unintended resets or metastability. TI recommends tying MR to VDD via a 10 kΩ resistor for active-high default operation, or driving it actively from a microcontroller or supervisor IC.
Is CD40175BPW suitable for automotive applications?
CD40175BPW is not AEC-Q100 qualified, but its -55°C to +125°C operating range and robust CMOS process make it suitable for under-hood or industrial automotive subsystems where formal qualification is not mandated. For safety-critical ADAS or infotainment ECUs, TI's automotive-grade alternatives (e.g., CD40175BQDR) should be specified instead of CD40175BPW.
CD40175BPW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 4000B
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Function:
- Master Reset
- Type:
- D-Type
- Output Type:
- Complementary
- Number of Elements:
- 1
- Number of Bits per Element:
- 4
- Clock Frequency:
- 14 MHz
- Max Propagation Delay @ V, Max CL:
- 120ns @ 15V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 6.8mA, 6.8mA
- Voltage - Supply:
- 3V ~ 18V
- Current - Quiescent (Iq):
- 4 µA
- Input Capacitance:
- 5 pF
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
CD40175BPW FAQ
1.How can I place an order for CD40175BPW through Aetrix?
Please submit a Request for Quotation (RFQ) for CD40175BPW on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for CD40175BPW reliable?
The price and inventory of CD40175BPW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CD40175BPW is usually 5 days.
3.What payment methods are accepted for CD40175BPW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CD40175BPW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CD40175BPW?
CD40175BPW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CD40175BPW order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for CD40175BPW?
For technical support, including CD40175BPW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CD40175BPW requirements.
6.How does Aetrix verify that CD40175BPW is sourced from the original manufacturer or authorized distributors?
All CD40175BPW products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that CD40175BPW meets industry standards.
7.What is the process for return or replacement of CD40175BPW?
All CD40175BPW units undergo pre-shipment inspection (PSI). If there is an issue with CD40175BPW, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The CD40175BPW part is unused and in its original packaging.
Return procedure for CD40175BPW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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