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Texas Instruments CD40175BM
- Part No.:
- CD40175BM
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
CD40175BM.pdf
- Description:
- IC FF D-TYPE SNGL 4BIT 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,251
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Product details
Overview
CD40175BM from Texas Instruments is a CMOS quad D-type flip-flop with complementary Q and Q̅ outputs, operating across -55°C to +125°C, featuring 16-pin SOIC (D) package, 15 V max supply voltage, and static operation down to 0 Hz - used in digital logic sequencing, clock division, and state register storage in industrial control systems.
For engineers reviewing the CD40175BM datasheet, CD40175BM pinout, CD40175BM application, or CD40175BM equivalent, key selection criteria include its rail-to-rail input compatibility, low quiescent current (≤1 µA at 5 V), asynchronous master reset, and guaranteed propagation delay (120 ns typical at 10 V) for synchronous edge-triggered latching.
Technical Context
The CD40175BM implements four independent D-type flip-flops sharing a common clock and master reset, each with true and complemented outputs. It uses standard CMOS silicon-gate technology, enabling direct interface with TTL and other CMOS families without level-shifting.
All flip-flops are positive-edge triggered; the master reset (MR) is active-high and asynchronous, forcing all Q outputs low regardless of clock state. Input thresholds are VDD/2, ensuring noise immunity and predictable switching over full temperature and voltage range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | CMOS - enables ultra-low static power consumption and high noise immunity in battery-backed or thermally constrained designs. |
| Supply Voltage Range | 3 V to 15 V - supports wide-range industrial power rails and mixed-voltage system interfacing without external regulators. |
| Propagation Delay (tPLH/tPHL) | 120 ns typical at VDD = 10 V - ensures reliable timing margin in 8 MHz synchronous systems with setup/hold compliance. |
| Input Threshold | VDD/2 ±0.3 V - guarantees consistent switching point across voltage and temperature, eliminating need for external biasing. |
| Quiescent Current (IDD) | ≤1 µA at VDD = 5 V, 25°C - allows use in always-on monitoring circuits without measurable battery drain. |
| Operating Temperature | -55°C to +125°C - qualified for extended-temperature industrial, aerospace, and automotive under-hood applications. |
Pinout & Package
CD40175BM is housed in a 16-pin SOIC (D) package per JEDEC MS-012, 7.5 mm body width, 1.75 mm height max, with 1.27 mm lead pitch and gull-wing leads. Pin 1 is located at the top-left corner with index marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5, 7 | Data Inputs (D1–D4) | Asynchronous data inputs for each flip-flop; accept CMOS- or TTL-level signals directly. |
| 2, 4, 6, 8 | Complementary Outputs (Q̅1–Q̅4) | Active-low inverted outputs; eliminate need for external inverters in toggle or enable logic. |
| 9 | Ground (VSS) | Reference return path for all internal logic and output drivers; must be low-impedance. |
| 10, 11, 12, 13 | True Outputs (Q1–Q4) | Edge-synchronized registered outputs; drive up to 10 CMOS loads or 1 TTL load. |
| 14 | Clock (CLK) | Common positive-edge-triggered clock input; internally buffered to minimize skew across four stages. |
| 15 | Master Reset (MR) | Asynchronous active-high reset; forces all Q outputs low independently of clock or data state. |
| 16 | Supply (VDD) | Positive supply rail; decoupling capacitor (0.1 µF ceramic) required within 10 mm of this pin. |
Key Features
| Feature | Design Value |
|---|---|
| Quad D-type flip-flop with Q/Q̅ outputs | Reduces board space and interconnect count vs. discrete single-bit registers; eliminates external inverters for complemented logic paths. |
| Wide supply range (3–15 V) | Enables reuse across legacy 5 V, modern 3.3 V, and high-voltage industrial 12 V systems without redesign. |
| Asynchronous master reset | Allows deterministic initialization of all four registers on power-up or fault recovery without clock dependency. |
| Static operation (DC to fmax) | Supports zero-frequency hold states - critical for power-gated subsystems and watchdog timer latches. |
| CMOS input compatibility | Accepts TTL input levels directly (VIL ≤ 0.8 V, VIH ≥ 2.0 V at 5 V), simplifying mixed-logic interfacing. |
Applications
| Industrial Sequence Controller | Digital Test Equipment |
|---|---|
|
Use Scenario: A programmable logic controller uses sequential step logic to cycle through motor start/stop, valve actuation, and sensor sampling phases. IC Role / Device Role / Timing Role: CD40175BM stores current step state in four-bit register; clocked by PLC scan interrupt, reset on emergency stop. Use Value: Provides deterministic, glitch-free state retention across wide temperature swings and noisy factory environments. |
Use Scenario: Automated test fixture sequences stimulus patterns to DUT while capturing response timing windows. IC Role / Device Role / Timing Role: CD40175BM acts as pattern counter register, advancing on each test cycle clock edge with synchronized Q outputs driving multiplexers. Use Value: Enables precise, repeatable pattern generation without microcontroller overhead or timing jitter from software loops. |
| Power-Up Configuration Latch | Legacy Bus Interface Register |
|
Use Scenario: Embedded system captures boot-mode jumper settings at power-on to configure flash mapping and peripheral enable. IC Role / Device Role / Timing Role: CD40175BM samples jumper voltages on POR release, latching values into Q outputs that feed FPGA configuration pins. Use Value: Guarantees metastability-free capture using hardware-synchronized edge triggering, avoiding race conditions in cold-start scenarios. |
Use Scenario: Retro-computing expansion card interfaces Z80 address/data bus with modern peripherals requiring stable register access. IC Role / Device Role / Timing Role: CD40175BM holds I/O port addresses during bus read/write cycles, driven by Z80 WR signal as clock. Use Value: Delivers TTL-compatible output drive and sub-150 ns timing alignment - essential for cycle-accurate 4 MHz Z80 bus timing. |
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 |
|---|---|---|---|
| CD4013BM | Dual D-type flip-flop (2×), same SOIC-14 package; lacks Q̅ outputs and shared clock/reset. | Requires two devices and external logic to match CD40175BM's 4-bit register density and output polarity. | Select when only two-bit storage is needed or board layout constrains pin count. |
| 74HC175N | Quad D-type flip-flop in PDIP-16; 2–6 V supply range, 125 °C max rating, no extended temp support. | Not rated for -55°C operation; unsuitable for aerospace or extended industrial deployments. | Choose for cost-sensitive commercial-grade 5 V systems where extended temperature is not required. |
Compared with CD40175BM, CD4013BM requires additional components to achieve equivalent functionality, while 74HC175N sacrifices military/industrial temperature range and fails to meet the same long-term reliability requirements in harsh environments.
Availability
CD40175BM is available at Aetrix Electronics and suitable for industrial sequence controllers, digital test equipment, and power-up configuration latches requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for CD40175BM 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 ICs, with over 90 years of innovation in high-reliability components.
CD40175BM belongs to TI's CD4000B series of radiation-tolerant, extended-temperature CMOS logic - designed specifically for mission-critical industrial, aerospace, and defense systems demanding robustness and longevity.
FAQ
What is the maximum clock frequency supported by CD40175BM?
The CD40175BM supports a maximum clock frequency of 8 MHz at VDD = 10 V and 25°C, based on measured propagation delay (120 ns) and setup/hold timing margins. At 15 V, frequency capability increases slightly, but design margin should account for worst-case temperature (-55°C to +125°C) and process variation. The CD40175BM remains functional at DC, enabling static latch operation in power-gated systems.
Does CD40175BM have Schmitt-trigger inputs?
No, CD40175BM does not feature Schmitt-trigger inputs. Its input threshold is fixed at approximately VDD/2 with ±0.3 V tolerance, optimized for clean digital waveforms. For noisy or slow-rising signals, external RC filtering or a dedicated Schmitt-trigger buffer (e.g., CD40106) must precede the CD40175BM clock or data inputs to prevent metastability.
Is CD40175BM pin-compatible with CD40175BE or CD40175BM96?
Yes, CD40175BM is pin-compatible with CD40175BE (PDIP-16) and CD40175BM96 (SOIC-16), sharing identical pin numbering, function assignment, and electrical interface. However, thermal performance and PCB layout constraints differ due to package type - SOIC variants require tighter trace spacing and controlled reflow profiles per Level-1 MSL rating.
Can CD40175BM drive LED indicators directly?
No, CD40175BM outputs are not rated for direct LED drive. Its CMOS outputs source/sink ≤1 mA at VDD = 5 V, insufficient for typical LEDs (requiring 5–20 mA). Use a discrete NPN transistor or dedicated LED driver (e.g., ULN2003) between CD40175BM Q outputs and LEDs to ensure reliable illumination and avoid output voltage droop or latch-up risk.
What is the status of CD40175BM according to Texas Instruments?
CD40175BM is marked as Obsolete by Texas Instruments per official packaging addendum, though CD40175BM96.A (same SOIC-16 package, tape-and-reel) remains Active. Aetrix Electronics maintains legacy inventory and offers cross-reference support to active variants, including full parametric and footprint compatibility verification for CD40175BM replacement in existing designs.
CD40175BM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 4000B
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- 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-SOIC
CD40175BM FAQ
1.How can I place an order for CD40175BM through Aetrix?
Please submit a Request for Quotation (RFQ) for CD40175BM 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 CD40175BM reliable?
The price and inventory of CD40175BM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CD40175BM is usually 5 days.
3.What payment methods are accepted for CD40175BM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CD40175BM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CD40175BM?
CD40175BM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CD40175BM 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 CD40175BM?
For technical support, including CD40175BM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CD40175BM requirements.
6.How does Aetrix verify that CD40175BM is sourced from the original manufacturer or authorized distributors?
All CD40175BM 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 CD40175BM meets industry standards.
7.What is the process for return or replacement of CD40175BM?
All CD40175BM units undergo pre-shipment inspection (PSI). If there is an issue with CD40175BM, 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 CD40175BM part is unused and in its original packaging.
Return procedure for CD40175BM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CD40175BM Tags
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