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Texas Instruments 74ACT11074DRG4
- Part No.:
- 74ACT11074DRG4
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
74ACT11074DRG4.pdf
- Description:
- IC FF D-TYPE DUAL 1BIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,679
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Product details
Overview
74ACT11074DRG4 from Texas Instruments is a dual positive-edge-triggered D-type flip-flop with independent asynchronous preset (PRE) and clear (CLR) inputs, operating at 4.5–5.5 V supply, supporting 100 MHz clock frequency, 4.5 ns setup time, and TTL-voltage-compatible inputs. It is used in synchronous logic control, state machine sequencing, and data latching in industrial digital systems.
For engineers reviewing the 74ACT11074DRG4 datasheet, 74ACT11074DRG4 pinout, 74ACT11074DRG4 application, or 74ACT11074DRG4 equivalent, key selection criteria include guaranteed 100 MHz operation at 85°C, ±24 mA output drive, 500-mA latch-up immunity, and SOIC-14 package compatibility with legacy 74-series timing layouts.
Technical Context
This device implements two independent edge-triggered storage elements with fully asynchronous active-low PRE and CLR controls that override clocked data transfer. Each flip-flop features symmetrical Q and Q̅ outputs, enabling direct implementation of toggle, set/reset, and register functions without external inversion.
Designed using TI's EPIC 1-μm CMOS process, the 74ACT11074DRG4 delivers ACT-series speed and noise immunity: center-pin VCC/GND placement minimizes switching noise, and input clamping supports robust interfacing with TTL-level sources while maintaining CMOS power efficiency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5 V to 5.5 V - Ensures compatibility with standard 5-V TTL/CMOS logic rails and stable operation across industrial temperature range. |
| Max Clock Frequency | 100 MHz - Enables high-speed synchronous data capture in real-time control and communication interface circuits. |
| Setup Time (tsu) | 4.5 ns - Defines minimum data stability window before clock edge, critical for timing closure in fast sequential logic designs. |
| Output Drive | ±24 mA - Supports direct fan-out to ≥10 LSTTL loads or driving moderate-capacitance PCB traces without buffers. |
| Propagation Delay (tPLH/tPHL) | 1.5–9.6 ns - Guarantees predictable timing margins for critical path analysis in registered logic blocks. |
| Operating Temperature | –40°C to +85°C - Qualified for use in industrial automation, test equipment, and embedded control environments. |
| Latch-Up Immunity | 500 mA at 125°C - Provides robust protection against transient-induced parasitic SCR activation in noisy power domains. |
Pinout & Package
74ACT11074DRG4 is packaged in a 14-pin SOIC (D) package with 1.27 mm pitch, 8.75 mm × 3.91 mm body, and 1.75 mm max height. Pin 1 is located at the top-left corner adjacent to the index notch or beveled edge.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1PRE | Asynchronous active-low preset for first flip-flop - forces Q = H, Q̅ = L independent of clock or data. |
| 2 | 1Q | True output of first flip-flop - reflects stored D value after positive clock edge when PRE/CLR inactive. |
| 3 | 1Q̅ | Inverted output of first flip-flop - complementary to 1Q, usable for differential signaling or feedback paths. |
| 4 | GND | Power ground reference - center-positioned to reduce ground bounce during simultaneous output switching. |
| 5 | 2Q | True output of second flip-flop - electrically isolated from first section, enabling dual independent registers. |
| 6 | 2Q̅ | Inverted output of second flip-flop - provides matched delay and phase relationship to 2Q for timing-critical paths. |
| 7 | 2PRE | Asynchronous active-low preset for second flip-flop - operates identically to 1PRE with no cross-talk. |
| 8 | 1CLK | Positive-edge-triggered clock input for first flip-flop - transition detection occurs at ~1.5 V threshold, not dependent on slew rate. |
| 9 | 1D | Data input for first flip-flop - sampled on rising CLK edge only when PRE and CLR are high. |
| 10 | 1CLR | Asynchronous active-low clear for first flip-flop - forces Q = L, Q̅ = H regardless of other inputs. |
| 11 | VCC | Positive supply rail - center-positioned opposite GND to minimize supply noise coupling into internal logic nodes. |
| 12 | 2CLR | Asynchronous active-low clear for second flip-flop - fully independent control, no shared logic with first section. |
| 13 | 2D | Data input for second flip-flop - supports independent data loading synchronized to its own clock domain. |
| 14 | 2CLK | Positive-edge-triggered clock input for second flip-flop - enables dual-clock-domain operation within single package. |
Key Features
| Feature | Design Value |
|---|---|
| TTL-Voltage-Compatible Inputs | Accepts standard 0.8 V / 2.0 V logic thresholds - eliminates need for level-shifting when interfacing with legacy 74LS or microcontroller GPIOs. |
| Center-Pin VCC/GND | Reduces simultaneous switching noise by symmetric current return paths - improves signal integrity in high-density PCB layouts. |
| EPIC 1-μm CMOS Process | Delivers ACT-series speed/power balance - achieves 100 MHz operation with typical ICC of 4 μA static current. |
| 500-mA Latch-Up Immunity | Withstands severe I/O transients up to 125°C - meets stringent reliability requirements for industrial and automotive-adjacent applications. |
| Multiple Package Options | SOIC-14 (D), SSOP-14 (DB), PDIP-14 (N) - supports drop-in replacement across prototyping (DIP), volume production (SOIC), and space-constrained (SSOP) designs. |
Applications
| Industrial PLC I/O Register | Digital Test Equipment Pattern Generator |
|---|---|
Use Scenario: Capturing and holding sensor status bits (e.g., limit switches, encoder states) in programmable logic controller backplane modules. IC Role / Device Role / Timing Role: Dual-register latch synchronizing asynchronous field inputs to the PLC's deterministic scan cycle clock. Use Value: Prevents metastability via guaranteed 4.5 ns setup time and 100 MHz clock tolerance, enabling reliable 10 kHz input sampling rates. | Use Scenario: Generating precise, repeatable stimulus waveforms for IC functional testing using pattern memory and sequencer logic. IC Role / Device Role / Timing Role: Edge-triggered storage element building synchronous shift registers and state counters in ATE timing engines. Use Value: Symmetrical tPLH/tPHL (1.5–9.6 ns) ensures minimal skew between Q/Q̅ outputs, critical for jitter-sensitive waveform reconstruction. |
| Legacy System Bus Interface | Motor Control State Machine |
Use Scenario: Glue logic bridging microprocessor address/data buses to peripheral devices requiring strobed handshaking signals. IC Role / Device Role / Timing Role: Dual D-flip-flop implementing address latching and control signal synchronization in ISA or VMEbus adapters. Use Value: TTL-compatible inputs accept direct connection to 8086/80286 bus drivers; ±24 mA outputs drive bus transceivers without buffering. | Use Scenario: Storing commutation sequence states in three-phase BLDC motor controllers using Hall-effect sensor feedback. IC Role / Device Role / Timing Role: Asynchronous preset/clear enables immediate fault reset (e.g., overcurrent) independent of main control loop timing. Use Value: Active-low PRE/CLR asserts within 5 ns (min pulse width), ensuring sub-microsecond emergency stop response in safety-critical drives. |
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 |
|---|---|---|---|
| SN74ACT74DR | Same ACT family, identical pinout and AC/DC specs, but includes dual-enable (OE) per output - adds output disable capability not present in 74ACT11074DRG4. | Required where bus-hold or tri-state output control is needed; otherwise functionally redundant for basic latching. | Select SN74ACT74DR only if output enable functionality is required; otherwise 74ACT11074DRG4 offers lower complexity and identical timing. |
| 74LCX74MTR | Lower voltage (2.0–3.6 V), higher speed (150 MHz), but incompatible 3.3-V logic levels and no TTL input compatibility. | Suitable only for modern low-voltage mixed-signal systems; cannot replace 74ACT11074DRG4 in 5-V legacy designs without level translation. | Choose 74LCX74MTR only in new 3.3-V designs prioritizing speed and power; avoid for 5-V or TTL-interfaced systems. |
Compared with SN74ACT74DR and 74LCX74MTR, the 74ACT11074DRG4 uniquely balances 5-V TTL compatibility, industrial temperature range, and dedicated asynchronous control - making it optimal for retrofitting and maintaining legacy digital control hardware without redesign.
Availability
74ACT11074DRG4 is available at Aetrix Electronics and suitable for industrial PLCs, automated test equipment, legacy bus interfaces, and motor control state machines requiring stable component supply across extended product lifecycles.
Supply support for 74ACT11074DRG4 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 industry-standard logic families.
The 74ACT11074DRG4 belongs to TI's Advanced CMOS Technology (ACT) logic series, engineered for high-speed, low-noise 5-V digital systems where TTL interoperability and industrial reliability are mandatory.
FAQ
What is the maximum clock frequency supported by the 74ACT11074DRG4?
The 74ACT11074DRG4 is characterized for operation up to 100 MHz across the full –40°C to +85°C temperature range. This specification is verified under recommended conditions (VCC = 4.5–5.5 V) and includes margin for process variation and aging. The 74ACT11074DRG4 achieves this performance using TI's EPIC CMOS process and center-pin power/ground layout to suppress switching noise.
Does the 74ACT11074DRG4 support TTL-level input signals?
Yes, the 74ACT11074DRG4 features TTL-voltage-compatible inputs, accepting VIH ≥ 2.0 V and VIL ≤ 0.8 V - matching standard TTL logic thresholds. This allows direct connection to 74LS, 74F, and microcontroller GPIOs without level-shifting circuitry. The 74ACT11074DRG4 maintains CMOS output drive strength while retaining legacy interface compatibility.
What package type is used for the 74ACT11074DRG4?
The 74ACT11074DRG4 uses a 14-pin SOIC (D) package with 1.27 mm lead pitch, 8.75 mm × 3.91 mm body dimensions, and 1.75 mm maximum height. It is RoHS-compliant, has NIPDAU lead finish, and carries a JEDEC MS-012 AB rating with MSL Level-1 (unlimited floor life at ≤30°C/60% RH). This matches the footprint of industry-standard 74-series SOIC logic.
How does the asynchronous preset and clear function in the 74ACT11074DRG4?
The 74ACT11074DRG4 provides independent active-low PRE and CLR inputs for each flip-flop. When either is pulled low, the corresponding outputs force to Q = H / Q̅ = L (PRE) or Q = L / Q̅ = H (CLR), overriding all clock and data activity. These controls operate with 5 ns minimum pulse width and are fully asynchronous - the 74ACT11074DRG4 guarantees correct behavior even when asserted mid-clock cycle.
Is the 74ACT11074DRG4 suitable for industrial temperature applications?
Yes, the 74ACT11074DRG4 is fully specified for operation from –40°C to +85°C, meeting industrial-grade environmental requirements. Its 500-mA latch-up immunity at 125°C, robust ESD protection, and validated AC/DC parameters across this range confirm suitability for factory automation, test instrumentation, and outdoor-rated control systems. All parametric data in the official SCAS498A datasheet applies across this full range.
74ACT11074DRG4 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:
- 125 MHz
- Max Propagation Delay @ V, Max CL:
- 8.5ns @ 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:
- 3.5 pF
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
74ACT11074DRG4 FAQ
1.How can I place an order for 74ACT11074DRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ACT11074DRG4 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 74ACT11074DRG4 reliable?
The price and inventory of 74ACT11074DRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ACT11074DRG4 is usually 5 days.
3.What payment methods are accepted for 74ACT11074DRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ACT11074DRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74ACT11074DRG4?
74ACT11074DRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ACT11074DRG4 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 74ACT11074DRG4?
For technical support, including 74ACT11074DRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ACT11074DRG4 requirements.
6.How does Aetrix verify that 74ACT11074DRG4 is sourced from the original manufacturer or authorized distributors?
All 74ACT11074DRG4 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 74ACT11074DRG4 meets industry standards.
7.What is the process for return or replacement of 74ACT11074DRG4?
All 74ACT11074DRG4 units undergo pre-shipment inspection (PSI). If there is an issue with 74ACT11074DRG4, 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 74ACT11074DRG4 part is unused and in its original packaging.
Return procedure for 74ACT11074DRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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