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Texas Instruments 74ACT11374DBLE
- Part No.:
- 74ACT11374DBLE
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- -
- Datasheet:
-
74ACT11374DBLE.pdf
- Description:
- IC FF D-TYPE SNGL 8BIT 24SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
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Product details
Overview
74ACT11374DBLE from Texas Instruments is an octal edge-triggered D-type flip-flop with 3-state outputs in a 24-pin SSOP package. It functions as a high-speed bus interface register, providing true-level outputs, TTL-voltage-compatible inputs, and flow-through architecture for optimized PCB layout. Key specs include 55 MHz max clock frequency, ±24 mA output drive, 3.94 V min VOH at 4.5 V VCC, and operation from –40°C to 85°C.
For engineers reviewing the 74ACT11374DBLE datasheet, 74ACT11374DBLE pinout, 74ACT11374DBLE application, or 74ACT11374DBLE equivalent, this device supports bidirectional bus driving, I/O port buffering, and working register implementation in industrial control and legacy digital systems requiring robust 3-state bus contention management.
Technical Context
The 74ACT11374DBLE implements eight independent positive-edge-triggered D flip-flops with asynchronous 3-state output control via OE. Its EPIC (Enhanced-Performance Implanted CMOS) 1-μm process enables latch-up immunity of 500 mA at 125°C and supports full parallel data loading.
Center-pin VCC and GND placement minimizes high-speed switching noise, while flow-through pinout (inputs on one side, outputs on the other) reduces trace crossovers. OE operates independently of clock and data-outputs enter high-Z without affecting internal state retention or new data capture capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | ACT (Advanced CMOS TTL-compatible), ensuring interoperability with 5 V TTL systems |
| Max Clock Frequency | 55 MHz - supports high-throughput synchronous data latching in bus interfaces |
| Output Drive | ±24 mA - sufficient to drive 50 pF loads with defined VOH/VOL under worst-case conditions |
| Propagation Delay | tPLH/tPHL ≤ 12.4 ns - ensures timing predictability in fast clock domains |
| 3-State Enable Delay | tPZH/tPLZ ≤ 13.2 ns - guarantees clean bus release/activation during OE transitions |
| Operating Temperature | –40°C to +85°C - qualified for industrial ambient environments without derating |
| Supply Voltage | 4.5 V to 5.5 V - compatible with standard 5 V logic rails and tolerant of ripple |
Pinout & Package
74ACT11374DBLE uses a 24-pin Shrink Small-Outline Package (SSOP, DB), 0.209-inch body width, with gull-wing leads and JEDEC MO-150 compliance. Pin 1 is located in Quadrant 1 (Q1), and center-aligned VCC (pins 14, 15) and GND (pins 5–8) reduce ground bounce.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1D–8D (pins 1–4, 20–23) | Data inputs | Asynchronous parallel load points; TTL-compatible thresholds (VIL = 0.8 V, VIH = 2 V) |
| CLK (pin 13) | Clock input | Positive-edge-sensitive trigger for simultaneous latching of all eight D inputs |
| OE (pin 12) | Output enable | Active-low control: drives Q outputs to high-impedance when high; no effect on internal flip-flop state |
| 1Q–8Q (pins 9–11, 16–19) | True 3-state outputs | Bus-capable outputs with defined VOH/VOL and ±24 mA drive; high-Z prevents bus contention |
| VCC (pins 14, 15) | Power supply | Center-placed dual VCC pins reduce IR drop and improve decoupling effectiveness |
| GND (pins 5–8) | Ground reference | Four adjacent GND pins provide low-inductance return paths for high-speed switching currents |
Key Features
| Feature | Design Value |
|---|---|
| Flow-through architecture | Input pins on left side (1–4, 20–23), outputs on right (9–11, 16–19), enabling straight PCB traces and minimal layer transitions |
| Center-pin VCC/GND | Dual VCC (pins 14, 15) and quad GND (pins 5–8) minimize simultaneous switching noise and improve power integrity |
| EPIC 1-μm CMOS process | Delivers 500 mA latch-up immunity at 125°C - critical for reliability in unregulated or thermally stressed environments |
| TTL-voltage-compatible inputs | Accepts standard TTL logic levels (VIH ≥ 2 V, VIL ≤ 0.8 V) without level-shifting circuitry |
| Independent OE control | Allows real-time bus arbitration: outputs go high-Z while internal registers retain data or accept new inputs |
Applications
| Industrial PLC I/O Modules | Legacy Bus Interface Adapters |
|---|---|
Use Scenario: Isolating and buffering parallel data between microcontroller GPIO banks and field-side 24 V digital I/O cards in programmable logic controllers. IC Role / Device Role / Timing Role: Acts as an octal latch and 3-state bus driver, synchronizing sensor/actuator data to system clock edges while preventing backdrive during hot-swap events. Use Value: Enables deterministic sampling of 8-bit status words with sub-13 ns propagation delay and guaranteed high-Z isolation during configuration changes. | Use Scenario: Interfacing ISA-bus peripherals to modern FPGA-based controller boards where legacy 5 V bus signaling must coexist with newer logic families. IC Role / Device Role / Timing Role: Provides bidirectional bus transceivers with direction control via OE, allowing shared data lines between master and slave devices without external direction logic. Use Value: Eliminates need for discrete pull-ups or bus buffers by delivering rail-to-rail VOH/VOL and 24 mA drive into 50 pF loads per line. |
| Test Equipment Digital Pattern Generators | Automated Test Fixture Controllers |
Use Scenario: Generating synchronized multi-channel digital stimulus waveforms in ATE systems where precise edge alignment and bus isolation are required. IC Role / Device Role / Timing Role: Functions as a clocked pattern register, capturing parallel test vectors on CLK↑ and presenting them simultaneously to DUT pins via 3-state outputs. Use Value: Delivers 55 MHz maximum clock rate and <5.5 ns data hold time - ensuring setup/hold margin for high-speed vector delivery. | Use Scenario: Controlling relay matrices and signal routing switches in benchtop test fixtures where multiple independent control lines must be updated atomically. IC Role / Device Role / Timing Role: Serves as a buffered output register, holding relay driver states until a global strobe (CLK) updates all eight channels simultaneously. Use Value: Prevents partial activation glitches via edge-triggered update and eliminates bus contention using OE-controlled high-Z during reconfiguration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal D-type flip-flop with 3-state output applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74ACT11374DWR | Same logic function, pinout, and AC/DC specs; SOIC-24 (DW) package instead of SSOP-24 (DB); RoHS-compliant, active status | Preferred for new designs requiring volume availability and tape-and-reel support (2000-unit reels) | Select when board space allows wider SOIC footprint and long-term supply continuity is required. |
| SN74ACT574N | Octal D flip-flop with 3-state outputs but single OE (not per-group); PDIP-20 package; identical ACT family specs except 20-pin vs 24-pin pinout | Limited to 8-bit buses without dedicated CLK/OE separation; lacks flow-through layout and center VCC/GND | Choose only for socket-based prototyping or legacy DIP layouts where SSOP/SOIC assembly is unavailable. |
Compared with 74ACT11374DBLE, the 74ACT11374DWR offers identical functionality in a more readily available SOIC package, while SN74ACT574N provides functional equivalence in DIP but sacrifices noise-reduction layout features and pin count flexibility.
Availability
74ACT11374DBLE is available at Aetrix Electronics and suitable for industrial PLC I/O modules, legacy bus interface adapters, and automated test fixture controllers requiring stable component supply despite its obsolete status-inventory is held for continuity support of installed base systems.
Supply support for 74ACT11374DBLE 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 U.S.-based semiconductor company founded in 1930, specializing in analog, embedded processing, and logic solutions for industrial, automotive, and communications markets.
The 74ACT11374DBLE belongs to TI's Advanced CMOS (ACT) logic family, designed specifically for high-speed, noise-immune 5 V digital systems requiring TTL compatibility, bus driving capability, and industrial temperature operation.
FAQ
What is the operating voltage range for the 74ACT11374DBLE?
The 74ACT11374DBLE operates over a supply voltage range of 4.5 V to 5.5 V. This 1 V window ensures compatibility with standard 5 V logic rails while accommodating typical power supply ripple and tolerance. Operation outside this range risks undefined behavior or permanent damage, as absolute maximum ratings limit VCC to –0.5 V to 7 V.
Does the 74ACT11374DBLE support hot-swapping or dynamic bus arbitration?
Yes-the 74ACT11374DBLE supports dynamic bus arbitration via its active-low OE input. When OE is high, all eight Q outputs enter high-impedance mode without affecting internal flip-flop state, allowing new data to be loaded or retained while the bus is released. This enables safe hot-swapping and multi-master bus sharing without external isolation components.
What is the maximum clock frequency supported by the 74ACT11374DBLE?
The 74ACT11374DBLE supports a maximum clock frequency of 55 MHz across its full operating temperature range (–40°C to +85°C). At 25°C, typical performance reaches 70 MHz, but design margins must respect the guaranteed 55 MHz limit for reliable operation in industrial environments.
How does the flow-through architecture of the 74ACT11374DBLE benefit PCB layout?
The flow-through architecture places all data inputs (1D–8D) on the left side and all outputs (1Q–8Q) on the right side of the 24-pin SSOP package. This allows straight, non-overlapping signal traces between controller and peripheral, reducing layer count, vias, and crosstalk-especially critical in dense industrial control boards where EMI and signal integrity are tightly constrained.
Is the 74ACT11374DBLE pin-compatible with other 74ACT-series octal flip-flops?
No-the 74ACT11374DBLE has a unique 24-pin SSOP (DB) pinout optimized for flow-through layout and center VCC/GND. It is not pin-compatible with 20-pin variants like SN74ACT574N or 24-pin SOIC versions such as 74ACT11374DWR, though logic function and AC/DC specifications are identical across the 74ACT11374 family.
74ACT11374DBLE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Function:
- -
- Type:
- -
- Output Type:
- -
- Number of Elements:
- -
- Number of Bits per Element:
- -
- Clock Frequency:
- -
- Max Propagation Delay @ V, Max CL:
- -
- Trigger Type:
- -
- Current - Output High, Low:
- -
- Voltage - Supply:
- -
- Current - Quiescent (Iq):
- -
- Input Capacitance:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
74ACT11374DBLE FAQ
1.How can I place an order for 74ACT11374DBLE through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ACT11374DBLE 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 74ACT11374DBLE reliable?
The price and inventory of 74ACT11374DBLE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ACT11374DBLE is usually 5 days.
3.What payment methods are accepted for 74ACT11374DBLE?
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Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74ACT11374DBLE?
74ACT11374DBLE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ACT11374DBLE 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 74ACT11374DBLE?
For technical support, including 74ACT11374DBLE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ACT11374DBLE requirements.
6.How does Aetrix verify that 74ACT11374DBLE is sourced from the original manufacturer or authorized distributors?
All 74ACT11374DBLE 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 74ACT11374DBLE meets industry standards.
7.What is the process for return or replacement of 74ACT11374DBLE?
All 74ACT11374DBLE units undergo pre-shipment inspection (PSI). If there is an issue with 74ACT11374DBLE, 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 74ACT11374DBLE part is unused and in its original packaging.
Return procedure for 74ACT11374DBLE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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