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Texas Instruments CD74ACT74QM96G4Q1
- Part No.:
- CD74ACT74QM96G4Q1
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
CD74ACT74QM96G4Q1.pdf
- Description:
- IC FF D-TYPE DUAL 1BIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,309
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Product details
Overview
CD74ACT74QM96G4Q1 from Texas Instruments is an automotive-qualified dual positive-edge-triggered D-type flip-flop with independent preset and clear inputs, 85 MHz maximum clock frequency, ±24 mA output drive, TTL-compatible inputs, and operation across −40°C to 125°C. It implements synchronous data latching in safety-critical vehicle control logic, such as transmission shift sequencing and airbag deployment timing circuits.
For engineers reviewing the CD74ACT74QM96G4Q1 datasheet, CD74ACT74QM96G4Q1 pinout, CD74ACT74QM96G4Q1 application, or CD74ACT74QM96G4Q1 equivalent, key selection criteria include automotive AEC-Q100 qualification, balanced propagation delays (2.4–9.5 ns), SCR-latchup-resistant CMOS process, and SOIC-14 package compatibility with legacy board layouts.
Technical Context
This device integrates two independent edge-triggered D flip-flops in a single SOIC-14 package, each with asynchronous active-low PRE and CLR inputs that override clocked behavior. Its TTL-voltage-compatible inputs accept 0.8 V/2.0 V thresholds while operating from a 4.5–5.5 V supply, enabling direct interfacing with legacy bipolar logic without level-shifting.
Propagation delays are tightly balanced between Q and Q outputs (tPLH/tPHL = 2.4–9.5 ns), and setup/hold timing (tsu = 4 ns, th = 0 ns) supports high-speed sampling of sensor signals in engine control units. The ±24 mA drive capability allows fanout to 15 F-series devices without external buffers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5 V to 5.5 V - ensures stable operation under automotive battery transients (e.g., load dump, cold crank). |
| Max Clock Frequency | 85 MHz - supports real-time sampling of high-speed CAN FD or LIN bus status signals in ECU timing paths. |
| Output Drive | ±24 mA - drives multiple downstream logic gates or small-signal LEDs directly, eliminating buffer stages. |
| Propagation Delay | 2.4 ns (min) to 9.5 ns (max) - enables precise edge-aligned timing in dual-channel PWM synchronization circuits. |
| Operating Temperature | −40°C to +125°C - qualified for under-hood applications including powertrain and chassis control modules. |
| Input Compatibility | TTL voltage thresholds (VIL = 0.8 V, VIH = 2.0 V) - interoperates with legacy 74LS/74F logic without level translators. |
| Quiescent Current | 4 µA (typ) to 80 µA (max) at 25°C - minimizes standby power in always-on vehicle subsystems like body control modules. |
Pinout & Package
CD74ACT74QM96G4Q1 uses a 14-pin SOIC (D) package with 1.27 mm pitch, 8.75 mm × 3.9 mm body, and 1.75 mm max height - compatible with standard surface-mount reflow profiles (MSL Level-1, 260°C peak).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 10, 13 | PRE / CLR / CLK / D (per flip-flop) | Asynchronous preset/clear and synchronous clock/data inputs - enable deterministic reset/set independent of clock edge. |
| 2, 5, 11, 14 | Q / Q / Q / Q (complementary outputs) | True and inverted latched outputs - support differential signaling or redundant logic checking in ASIL-B systems. |
| 7 | GND | Power return reference - requires low-inductance connection to minimize ground bounce during simultaneous output switching. |
| 14 | VCC | Positive supply rail - decoupling capacitor (0.1 µF ceramic) must be placed within 3 mm for stable high-speed operation. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Qualified | Automotive-grade reliability validated per Grade 1 temperature range (−40°C to +125°C) and stress testing requirements. |
| SCR-Latchup Resistant | CMOS process prevents destructive latch-up during ESD events or supply rail transients common in vehicle electrical systems. |
| Balanced Q/Q Delays | Matched tPLH/tPHL ensures symmetrical timing margins when both outputs feed complementary logic paths (e.g., H-bridge gate drivers). |
| TTL-Compatible Inputs | Accepts standard 74LS logic levels directly - eliminates need for external level shifters in mixed-technology ECUs. |
| Low Input Capacitance | 10 pF typical - reduces loading on upstream clock or data sources, preserving signal integrity in high-frequency routing. |
Applications
| Engine Control Unit (ECU) | Transmission Control Module (TCM) |
|---|---|
Use Scenario: Capturing camshaft position sensor pulses synchronized to crankshaft rotation for fuel injection timing. IC Role / Device Role / Timing Role: Dual D flip-flop latches rising edges of two Hall-effect sensor signals on separate clock domains to resolve phase relationship. Use Value: Enables sub-degree crank angle resolution using asynchronous preset/clear to force known initial state before engine start. |
Use Scenario: Debouncing gear selector switch inputs and synchronizing them to internal control clock before shift solenoid activation. IC Role / Device Role / Timing Role: Synchronizer and metastability filter - samples mechanical switch transitions on clock edge while suppressing bounce via hold-time zero requirement. Use Value: Eliminates need for RC filters or firmware debouncing, reducing BOM count and improving response time in fail-safe shift logic. |
| Body Control Module (BCM) | Advanced Driver Assistance Systems (ADAS) |
Use Scenario: Latching door-open status from microswitches and driving interior lighting with controlled fade timing. IC Role / Device Role / Timing Role: Edge-triggered storage element holding door state until next wake-up event; Q output drives LED driver enable line. Use Value: ±24 mA drive directly powers low-current LED strings, avoiding discrete transistor stage and saving PCB area. |
Use Scenario: Capturing radar sensor frame sync pulses and aligning them with camera exposure triggers for sensor fusion timestamping. IC Role / Device Role / Timing Role: Dual-channel pulse stretcher and alignment buffer - one flip-flop captures rising edge, second holds duration for FPGA interface handshake. Use Value: 85 MHz clock support accommodates high-frame-rate radar sensors (e.g., 77 GHz automotive radar), ensuring nanosecond-level timestamp accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual D-type flip-flop applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC74AQPWRQ1 | Lower supply range (1.65–5.5 V), 32 mA drive, but only 24 MHz max clock at 3.3 V; no TTL input compatibility. | Suitable for 3.3 V-only domains (e.g., infotainment SoC interfaces); not drop-in for 5 V legacy systems. | Select when migrating to lower-voltage domains and requiring higher drive strength at reduced speed. |
| CD74HC74QME4Q1 | Same pinout and function, but HC logic family: slower (25 MHz max), lower drive (±5.2 mA), wider VCC range (2–6 V). | Used where cost or wide supply tolerance matters more than speed - e.g., HVAC control panels with variable battery input. | Choose for cost-sensitive, lower-speed automotive subsystems where 85 MHz performance is unnecessary. |
Compared with CD74ACT74QM96G4Q1, SN74LVC74AQPWRQ1 offers higher drive but sacrifices 5 V TTL compatibility and speed headroom, while CD74HC74QME4Q1 trades performance for broader voltage flexibility and lower cost - making CD74ACT74QM96G4Q1 optimal for 5 V, high-speed, legacy-interfaced automotive logic.
Availability
CD74ACT74QM96G4Q1 is available at Aetrix Electronics and suitable for engine control units, transmission control modules, and body control modules requiring stable component supply across automotive production lifecycles.
Supply support for CD74ACT74QM96G4Q1 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 company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for automotive, industrial, and consumer markets since 1930.
CD74ACT74QM96G4Q1 belongs to TI's ACT (Advanced CMOS TTL-compatible) logic family, designed specifically for automotive applications requiring robust noise immunity, wide temperature operation, and seamless integration with legacy 5 V logic systems.
FAQ
What is the AEC-Q100 qualification status of CD74ACT74QM96G4Q1?
CD74ACT74QM96G4Q1 is fully qualified to AEC-Q100 Grade 1 standards, covering temperature cycling, HTOL, ESD, and latch-up testing for automotive use. The "Q1" suffix explicitly denotes this qualification, and test reports confirm operation from −40°C to +125°C ambient with full parametric compliance throughout the range. This makes CD74ACT74QM96G4Q1 suitable for powertrain and chassis applications where reliability is critical.
Does CD74ACT74QM96G4Q1 support true 5 V TTL input compatibility?
Yes, CD74ACT74QM96G4Q1 features TTL-voltage-compatible inputs with guaranteed VIL ≤ 0.8 V and VIH ≥ 2.0 V at VCC = 4.5–5.5 V. This allows direct connection to 74LS, 74F, and other legacy bipolar logic families without level-shifting circuitry - a key differentiator from LVC or HC variants that require 3.3 V logic levels or have tighter input thresholds.
What is the minimum setup time required for reliable operation of CD74ACT74QM96G4Q1?
The CD74ACT74QM96G4Q1 requires a minimum data setup time (tsu) of 4 ns relative to the clock's positive-going edge, specified over the full −40°C to +125°C temperature range at VCC = 5 V ± 0.5 V. This tight timing enables integration into high-speed control loops, such as those found in electric power steering motor commutation logic, where deterministic sampling is essential.
Can CD74ACT74QM96G4Q1 operate with a 3.3 V supply?
No - CD74ACT74QM96G4Q1 is not characterized or guaranteed for operation below 4.5 V. Its recommended operating conditions specify VCC = 4.5–5.5 V only. Attempting 3.3 V operation may result in undefined logic states, increased propagation delay variation, or failure to meet timing specifications. For 3.3 V systems, consider SN74LVC74AQPWRQ1 instead.
How does the SCR-latchup resistance of CD74ACT74QM96G4Q1 benefit automotive designs?
CD74ACT74QM96G4Q1 employs a proprietary SCR-latchup-resistant CMOS process that prevents destructive parasitic thyristor conduction during ESD events or supply rail transients - common in automotive environments due to load dump or jump-start conditions. This eliminates need for external protection components and improves field reliability in harsh electrical environments.
CD74ACT74QM96G4Q1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74ACT
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Set(Preset) and Reset
- Type:
- D-Type
- Output Type:
- Complementary
- Number of Elements:
- 2
- Number of Bits per Element:
- 1
- Clock Frequency:
- 85 MHz
- Max Propagation Delay @ V, Max CL:
- 9.5ns @ 5V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 24mA, 24mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Current - Quiescent (Iq):
- 4 µA
- Input Capacitance:
- 10 pF
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
CD74ACT74QM96G4Q1 FAQ
1.How can I place an order for CD74ACT74QM96G4Q1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CD74ACT74QM96G4Q1 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 CD74ACT74QM96G4Q1 reliable?
The price and inventory of CD74ACT74QM96G4Q1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CD74ACT74QM96G4Q1 is usually 5 days.
3.What payment methods are accepted for CD74ACT74QM96G4Q1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CD74ACT74QM96G4Q1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CD74ACT74QM96G4Q1?
CD74ACT74QM96G4Q1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CD74ACT74QM96G4Q1 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 CD74ACT74QM96G4Q1?
For technical support, including CD74ACT74QM96G4Q1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CD74ACT74QM96G4Q1 requirements.
6.How does Aetrix verify that CD74ACT74QM96G4Q1 is sourced from the original manufacturer or authorized distributors?
All CD74ACT74QM96G4Q1 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 CD74ACT74QM96G4Q1 meets industry standards.
7.What is the process for return or replacement of CD74ACT74QM96G4Q1?
All CD74ACT74QM96G4Q1 units undergo pre-shipment inspection (PSI). If there is an issue with CD74ACT74QM96G4Q1, 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 CD74ACT74QM96G4Q1 part is unused and in its original packaging.
Return procedure for CD74ACT74QM96G4Q1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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