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Texas Instruments CD74HCT174M96G4
- Part No.:
- CD74HCT174M96G4
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
CD74HCT174M96G4.pdf
- Description:
- IC FF D-TYPE SNGL 6BIT 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,816
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Product details
Overview
CD74HCT174M96G4 from Texas Instruments is a hex D-type flip-flop with asynchronous common reset, implemented in silicon-gate CMOS technology for LSTTL-compatible operation at 4.5V–5.5V. It features positive-edge clock triggering, six master-slave stages sharing one clock and one reset pin, and delivers 15 LSTTL load fanout. It is used in digital control logic, state register banks, and synchronous data latching in industrial timing circuits.
For engineers reviewing the CD74HCT174M96G4 datasheet, CD74HCT174M96G4 pinout, CD74HCT174M96G4 application, or CD74HCT174M96G4 equivalent, key selection criteria include its HCT-level input compatibility (VIH ≥ 2V, VIL ≤ 0.8V), -55°C to +125°C operating range, SOIC-16 package, and guaranteed 25 MHz max clock frequency at 5V with 50 pF load.
Technical Context
The CD74HCT174M96G4 implements six independent D-type flip-flops in a single SOIC-16 package, each synchronized to the rising edge of a shared clock (CP) and cleared simultaneously by an active-low MR signal. Its architecture uses master-slave latching to prevent race conditions and ensure deterministic output transitions.
It operates strictly within the 4.5V–5.5V supply range and maintains full DC and AC compatibility with standard LS-TTL inputs-no level-shifting required. Propagation delay from CP to Q is 40 ns (typical) at 5V/50 pF, and setup/hold times are 16 ns/5 ns respectively, enabling reliable interfacing with legacy TTL bus controllers and microcontroller peripherals.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | HCT - TTL-compatible CMOS, enables direct connection to 74LS-series without level shifters |
| Supply Voltage Range | 4.5V to 5.5V - ensures stable operation across industrial 5V rails with ±10% tolerance |
| Max Clock Frequency | 25 MHz at 5V/50 pF - supports medium-speed synchronous logic in control sequencers and I/O expanders |
| Propagation Delay (CP→Q) | 40 ns typical at 5V/50 pF - defines minimum cycle time for reliable state capture in pipeline registers |
| Input Compatibility | VIH ≥ 2.0V, VIL ≤ 0.8V - matches LS-TTL thresholds, eliminating need for external pull-ups or buffers |
| Operating Temperature | -55°C to +125°C - qualified for aerospace, military, and under-hood automotive applications |
| Fanout Capability | 15 LSTTL loads - drives multiple downstream gates without buffer amplification |
Pinout & Package
CD74HCT174M96G4 is housed in a 16-pin SOIC (Small Outline Integrated Circuit) package with standard 1.27 mm pitch, JEDEC MS-012AC compliant, and RoHS-compliant NiPdAu lead finish. The device uses quadrant Q1 orientation in tape-and-reel delivery (2500 pcs/reel).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (MR) | Master Reset | Active-low asynchronous reset controlling all six Q outputs; overrides clock and forces Qn = L |
| 2–7 (D0–D5) | Data Inputs | Independent D inputs for each flip-flop; sampled on rising CP edge if setup/hold times met |
| 8 (GND) | Ground Reference | Power return path for logic core and I/O; requires low-impedance PCB connection |
| 9–14 (Q0–Q5) | Registered Outputs | Complementary latched outputs updated only on CP rising edge; no internal inversion |
| 15 (CP) | Clock Input | Buffered positive-edge-triggered clock; must meet minimum pulse width (20 ns @ 5V) |
| 16 (VCC) | Power Supply | CMOS core supply; bypassing with 0.1 µF ceramic capacitor near pin recommended |
Key Features
| Feature | Design Value |
|---|---|
| Asynchronous Common Reset | Single MR pin clears all six Q outputs to logic low regardless of clock state - simplifies system initialization and fault recovery |
| LSTTL Input Compatibility | Guaranteed VIH ≥ 2.0V and VIL ≤ 0.8V at VCC = 5V - eliminates interface logic when upgrading from 74LS174 |
| High Fanout (15 LSTTL) | Drives up to 15 standard TTL inputs directly - reduces component count in bus-hold or address latch designs |
| Wide Temperature Range | Specified from -55°C to +125°C - supports deployment in extended-environment systems without derating |
| Low Quiescent Current | ICC ≤ 8 µA at 25°C (max 160 µA over full temp range) - enables use in low-power standby modes |
Applications
| Industrial PLC I/O Expansion | Automotive Engine Control Unit (ECU) Register Bank |
|---|---|
|
Use Scenario: Latching sensor status bits from analog-to-digital converters before CPU read cycles in programmable logic controllers. IC Role / Device Role / Timing Role: Hex D-type register capturing parallel 6-bit status data on synchronized rising clock edges, with MR enabling global fault-clear on watchdog timeout. Use Value: Eliminates need for discrete latches or microcontroller GPIO bit-banging; provides deterministic, glitch-free sampling aligned to system clock domain. |
Use Scenario: Holding calibrated actuator enable states (e.g., fuel injector fire signals) during ECU power-up sequencing and diagnostic self-test. IC Role / Device Role / Timing Role: Synchronous state retention block with hard-reset capability via MR, ensuring known-zero output until firmware asserts valid D inputs. Use Value: Prevents spurious actuator activation during boot; leverages -55°C to +125°C rating for under-hood reliability without thermal derating. |
| Aerospace Avionics Data Buffering | Test Equipment Digital Pattern Generator |
|
Use Scenario: Capturing telemetry words from radiation-hardened ADCs prior to serial transmission over MIL-STD-1553 bus interfaces. IC Role / Device Role / Timing Role: Edge-triggered data staging register synchronized to mission clock; MR tied to system health monitor for emergency zeroization. Use Value: Meets TID hardness requirements via CMOS process; 15 LSTTL fanout drives multiple downstream comparators or parity checkers. |
Use Scenario: Generating repeatable 6-bit stimulus patterns for IC functional testing, where pattern stability must persist across test vector transitions. IC Role / Device Role / Timing Role: Static pattern hold register updated only on clock edge; MR allows instant pattern reset between test sequences. Use Value: Enables precise timing control with 40 ns CP→Q delay; SOIC-16 footprint fits high-density ATE board layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hex D-type flip-flop with reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74HCT174N | Same logic function and pinout; PDIP-16 package instead of SOIC-16; identical electrical specs but higher thermal resistance (θJA = 67°C/W vs. 73°C/W) | Preferred for through-hole prototyping or legacy board rework; not suitable for surface-mount volume production | Select SN74HCT174N only when manual soldering or socket-based validation is required. |
| CD74HCT174M96 | Identical SOIC-16 packaging, tape-and-reel format (2500 pcs), and full electrical specification - differs only in part suffix (no 'G4' marking) | No functional or application difference; 'G4' denotes TI's internal assembly/test flow variant with same reliability and qualification | CD74HCT174M96 is functionally interchangeable; CD74HCT174M96G4 offers traceability to TI's latest production lot controls. |
Compared with SN74HCT174N and CD74HCT174M96, the CD74HCT174M96G4 provides identical logic behavior and timing in a RoHS-compliant SOIC-16 package optimized for automated SMT assembly, while offering enhanced traceability and consistent MSL-1 handling per TI's current manufacturing release.
Availability
CD74HCT174M96G4 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automotive ECU register banks, aerospace avionics buffering, and test equipment pattern generation requiring stable component supply across extended temperature ranges.
Supply support for CD74HCT174M96G4 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 heritage in high-reliability logic families including the 74HCT series.
The CD74HCT174M96G4 belongs to TI's High-Speed CMOS Logic portfolio, designed specifically to replace legacy 74LS devices in industrial, automotive, and defense systems while maintaining pin and function compatibility with significant power savings.
FAQ
What is the maximum clock frequency supported by the CD74HCT174M96G4?
The CD74HCT174M96G4 supports a maximum clock frequency of 25 MHz at VCC = 5V with a 50 pF load, as specified in the switching characteristics table. This value is guaranteed over the full -55°C to +125°C operating temperature range, making CD74HCT174M96G4 suitable for real-time control applications where deterministic timing is critical.
Is the CD74HCT174M96G4 pin-compatible with the 74LS174?
Yes, the CD74HCT174M96G4 is both functionally and pin-compatible with the 74LS174. Its HCT input thresholds (VIH ≥ 2.0V, VIL ≤ 0.8V) match LS-TTL levels, and its SOIC-16 pinout mirrors the PDIP-16 layout of the 74LS174 - enabling drop-in replacement without PCB modification when migrating from bipolar to CMOS technology.
What does the 'G4' suffix in CD74HCT174M96G4 signify?
Within Texas Instruments' part numbering system, the 'G4' suffix in CD74HCT174M96G4 identifies a specific assembly and test flow revision, indicating compliance with TI's latest quality and reliability standards. It does not alter functionality, timing, or electrical specifications - CD74HCT174M96G4 remains fully interchangeable with CD74HCT174M96 in design and application.
Can the CD74HCT174M96G4 operate outside the 4.5V–5.5V supply range?
No - the CD74HCT174M96G4 is characterized and guaranteed only for operation between 4.5V and 5.5V. Operation below 4.5V risks violating input threshold margins and may cause metastability; operation above 5.5V exceeds absolute maximum ratings and risks permanent damage. For wider voltage operation, consider the HC-family variant CD74HC174M96 instead.
Does the CD74HCT174M96G4 require external pull-up resistors on its inputs?
No - the CD74HCT174M96G4 has CMOS input structure with leakage current ≤ ±1 µA and defined VIH/VIL thresholds. Pull-up resistors are unnecessary unless interfacing with open-collector/drain sources or implementing wired-OR logic. For standard TTL or microcontroller GPIO drivers, direct connection suffices.
CD74HCT174M96G4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74HCT
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Function:
- Master Reset
- Type:
- D-Type
- Output Type:
- Non-Inverted
- Number of Elements:
- 1
- Number of Bits per Element:
- 6
- Clock Frequency:
- 25 MHz
- Max Propagation Delay @ V, Max CL:
- 40ns @ 4.5V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 4mA, 4mA
- Voltage - Supply:
- 4.5V ~ 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
CD74HCT174M96G4 FAQ
1.How can I place an order for CD74HCT174M96G4 through Aetrix?
Please submit a Request for Quotation (RFQ) for CD74HCT174M96G4 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 CD74HCT174M96G4 reliable?
The price and inventory of CD74HCT174M96G4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CD74HCT174M96G4 is usually 5 days.
3.What payment methods are accepted for CD74HCT174M96G4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CD74HCT174M96G4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CD74HCT174M96G4?
CD74HCT174M96G4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CD74HCT174M96G4 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 CD74HCT174M96G4?
For technical support, including CD74HCT174M96G4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CD74HCT174M96G4 requirements.
6.How does Aetrix verify that CD74HCT174M96G4 is sourced from the original manufacturer or authorized distributors?
All CD74HCT174M96G4 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 CD74HCT174M96G4 meets industry standards.
7.What is the process for return or replacement of CD74HCT174M96G4?
All CD74HCT174M96G4 units undergo pre-shipment inspection (PSI). If there is an issue with CD74HCT174M96G4, 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 CD74HCT174M96G4 part is unused and in its original packaging.
Return procedure for CD74HCT174M96G4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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