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Texas Instruments CD74AC174M96
- Part No.:
- CD74AC174M96
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
CD74AC174M96.pdf
- Description:
- IC FF D-TYPE SNGL 6BIT 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,921
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Product details
Overview
CD74AC174M96 from Texas Instruments is a 16-pin SOIC-packaged hex D-type positive-edge-triggered flip-flop with asynchronous clear (CLR), operating across 1.5 V to 5.5 V supply, delivering ±24 mA output drive, balanced propagation delays, and SCR-latchup-resistant CMOS process - used in synchronous data latching and register staging within industrial control logic circuits.
For engineers reviewing the CD74AC174M96 datasheet, CD74AC174M96 pinout, CD74AC174M96 application, or CD74AC174M96 equivalent, key selection considerations include its 5.5 V max supply rating, 108 MHz max clock frequency at 5 V, 3.5 ns typical tPLH/tPHL, -55°C to +125°C operating range, and SOIC-16 package compatibility with legacy board layouts.
Technical Context
The CD74AC174M96 implements six independent D-type flip-flops sharing a common clock (CLK) and active-low asynchronous clear (CLR) input. Each stage transfers data from D to Q on the rising edge of CLK, with no effect during high/low CLK states - enabling precise edge-synchronized storage without internal feedback paths.
Its AC-series CMOS architecture provides bipolar-speed performance (comparable to F/AS/S families) with significantly lower power consumption, balanced noise immunity (30% of VCC), and buffered inputs to reduce loading effects - making it suitable for mixed-voltage digital systems requiring robust timing margins and low static current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.5 V to 5.5 V - supports single-rail operation across 1.8 V, 3.3 V, and 5 V logic domains without level shifters. |
| Max Clock Frequency | 108 MHz at VCC = 5 V - enables high-speed register staging in real-time control sequencers. |
| Propagation Delay (tPLH/tPHL) | 3.5 ns typical at VCC = 5 V, CL = 50 pF - ensures tight timing budgets in synchronous state machines. |
| Output Drive Current | ±24 mA - drives up to 15 F-series logic loads directly, reducing need for buffer stages. |
| Operating Temperature | –55°C to +125°C - qualified for under-hood automotive, industrial PLC, and aerospace avionics environments. |
| Input Noise Immunity | 30% of VCC - maintains reliable switching in electrically noisy factory-floor or motor-drive proximity. |
| ESD Rating (HBM) | ±2000 V - meets standard handling requirements without special ESD precautions beyond routine controls. |
Pinout & Package
CD74AC174M96 is supplied in a 16-pin SOIC (D) package measuring 9.9 mm × 6.0 mm body size, with gull-wing leads, RoHS-compliant NiPdAu finish, and moisture sensitivity level 1 (260°C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (CLR) | Asynchronous Clear Input | Active-low reset forcing all six Q outputs low regardless of clock state - critical for system initialization and fault recovery. |
| 2–7, 10–12, 14–15 (Q1–Q6, D1–D6) | Output/Inputs | Single-rail D and Q terminals per flip-flop - supports independent data routing without shared bus contention. |
| 8 (GND) | Ground Reference | Primary return path for all internal logic and output currents - must be low-impedance to maintain noise margin. |
| 9 (CLK) | Clock Input | Positive-edge-triggered global clock - synchronizes all six flip-flops simultaneously for coherent register updates. |
| 16 (VCC) | Power Supply | Single-supply rail supporting full 1.5–5.5 V range - eliminates need for dual supplies in mixed-voltage designs. |
Key Features
| Feature | Design Value |
|---|---|
| Wide-Voltage Operation | 1.5 V to 5.5 V supply range enables drop-in use in both legacy 5 V and modern 1.8/3.3 V systems without redesign. |
| Balanced Propagation Delays | Matched tPLH/tPHL minimizes skew between parallel flip-flop outputs - essential for glitch-free parallel data transfer. |
| SCR-Latchup Resistance | Robust CMOS process prevents destructive latchup under transient overvoltage or ESD events - improves field reliability. |
| Buffered Inputs | Reduces capacitive loading on upstream drivers and stabilizes timing margins across temperature and voltage extremes. |
| High Fanout Capability | ±24 mA drive supports fanout to 15 F-series devices - reduces gate count and PCB area in multi-stage logic networks. |
Applications
| Industrial PLC Register Staging | Automotive Body Control Module Latching |
|---|---|
|
Use Scenario: Capturing sensor status bits (e.g., door open/closed, seatbelt fastened) at fixed intervals in a vehicle body controller. IC Role / Device Role / Timing Role: Synchronizes asynchronous mechanical switch inputs to the microcontroller's deterministic scan cycle using a 10 kHz system clock. Use Value: Eliminates contact bounce artifacts via clean edge-triggered sampling, ensuring deterministic state capture without software debouncing overhead. |
Use Scenario: Holding configuration data (e.g., lighting mode, mirror position) across MCU reset cycles in an automotive BCM. IC Role / Device Role / Timing Role: Acts as nonvolatile shadow register - data written pre-reset and restored post-reset via CLR-controlled initialization sequence. Use Value: Maintains user settings without EEPROM wear or backup battery, leveraging the device's -55°C to +125°C qualification for under-dash mounting. |
| Test Equipment Pattern Generator | Factory Automation I/O Expansion |
|
Use Scenario: Generating synchronized 6-bit test vectors for digital IC functional testing in ATE systems. IC Role / Device Role / Timing Role: Provides deterministic, skew-minimized parallel output staging driven by a precision 100 MHz clock generator. Use Value: Enables sub-10 ns inter-bit timing alignment required for high-speed boundary-scan compliance verification. |
Use Scenario: Extending discrete I/O count on programmable logic controllers via parallel interface to main CPU. IC Role / Device Role / Timing Role: Buffers and latches 6-bit parallel command words from the CPU bus before driving external relay drivers. Use Value: Isolates sensitive control logic from relay coil transients while maintaining 108 MHz update capability for rapid machine cycle response. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar D-type flip-flop applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74AC174N | Same AC-family logic, identical pinout and electrical specs, but PDIP-16 package (19.3 mm × 9.4 mm) - larger footprint and higher thermal resistance (RθJA = 67°C/W). | Preferred where through-hole assembly, manual prototyping, or socket-based test fixtures are required. | Select SN74AC174N when board space allows and hand-soldering or socket reuse is needed; not drop-in for SOIC footprints. |
| CD74HC174M96 | HC-family variant: slower max clock (25 MHz at 6 V), higher VCC min (2 V), lower drive (±5.2 mA), but lower ICC (4 μA typical). | Better suited for ultra-low-power battery-operated systems where speed < 25 MHz suffices and supply is ≥2 V. | Choose CD74HC174M96 only if power budget is constrained and timing requirements are relaxed - not functionally interchangeable at 100+ MHz. |
Compared with SN74AC174N and CD74HC174M96, the CD74AC174M96 uniquely balances high-speed operation (108 MHz), wide supply range (1.5–5.5 V), and SOIC-16 manufacturability - making it optimal for cost-sensitive, high-volume industrial control boards requiring both performance and layout compatibility.
Availability
CD74AC174M96 is available at Aetrix Electronics and suitable for industrial PLCs, automotive body control modules, automated test equipment, and factory I/O expansion systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for CD74AC174M96 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 decades of experience in high-reliability industrial and automotive-grade components.
The CD74AC174M96 belongs to TI's Advanced CMOS (AC) logic family, designed specifically for applications demanding bipolar-speed performance with CMOS power efficiency and robust noise immunity in harsh environments.
FAQ
What is the maximum clock frequency supported by CD74AC174M96?
The CD74AC174M96 supports a maximum clock frequency of 108 MHz when operated at VCC = 5 V ± 0.5 V and TA = –40°C to +85°C. At 3.3 V, the max frequency drops to 77 MHz, and at 1.5 V it is 9 MHz - all values verified per TI's SCHS346C datasheet Section 5.8.
Does CD74AC174M96 require external pull-up or pull-down resistors on unused inputs?
Yes - all unused inputs of the CD74AC174M96 must be tied to either VCC or GND to prevent floating states that cause undefined outputs and increased power consumption. This requirement is explicitly stated in Section 5.3 of the TI datasheet and applies to any unconnected D or CLR pins.
Is CD74AC174M96 pin-compatible with CD74HC174M96?
Yes - CD74AC174M96 and CD74HC174M96 share identical SOIC-16 pinouts, pin functions, and logic behavior. However, they differ electrically: AC offers higher speed and drive strength, while HC provides lower quiescent current and narrower supply range - direct substitution requires validation of timing and voltage margins.
What is the thermal resistance (RθJA) of CD74AC174M96 in its SOIC package?
The junction-to-ambient thermal resistance (RθJA) for CD74AC174M96 in the SOIC (D) package is 106.6°C/W, as specified in Section 5.4 of the TI SCHS346C datasheet. This value assumes standard JEDEC 2-layer board conditions and informs heatsinking decisions for high-duty-cycle applications.
Can CD74AC174M96 operate reliably at –55°C?
Yes - the CD74AC174M96 is fully specified and tested for operation from –55°C to +125°C, including all electrical characteristics (propagation delay, setup/hold times, output drive) and timing parameters. This extended range is confirmed in Sections 5.3 and 5.8–5.11 of the official TI datasheet.
CD74AC174M96 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AC
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Master Reset
- Type:
- D-Type
- Output Type:
- Non-Inverted
- Number of Elements:
- 1
- Number of Bits per Element:
- 6
- Clock Frequency:
- 95 MHz
- Max Propagation Delay @ V, Max CL:
- 13.5ns @ 5V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 24mA, 24mA
- Voltage - Supply:
- 1.5V ~ 5.5V
- Current - Quiescent (Iq):
- 8 µA
- Input Capacitance:
- 10 pF
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
CD74AC174M96 FAQ
1.How can I place an order for CD74AC174M96 through Aetrix?
Please submit a Request for Quotation (RFQ) for CD74AC174M96 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 CD74AC174M96 reliable?
The price and inventory of CD74AC174M96 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CD74AC174M96 is usually 5 days.
3.What payment methods are accepted for CD74AC174M96?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CD74AC174M96 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CD74AC174M96?
CD74AC174M96 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CD74AC174M96 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 CD74AC174M96?
For technical support, including CD74AC174M96 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CD74AC174M96 requirements.
6.How does Aetrix verify that CD74AC174M96 is sourced from the original manufacturer or authorized distributors?
All CD74AC174M96 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 CD74AC174M96 meets industry standards.
7.What is the process for return or replacement of CD74AC174M96?
All CD74AC174M96 units undergo pre-shipment inspection (PSI). If there is an issue with CD74AC174M96, 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 CD74AC174M96 part is unused and in its original packaging.
Return procedure for CD74AC174M96:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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