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NXP Semiconductors 74ABT374AN,112
- Part No.:
- 74ABT374AN,112
- Manufacturer:
- NXP Semiconductors
- Category:
- Flip Flops
- Package:
- 20-DIP (0.300", 7.62mm)
- Datasheet:
-
74ABT374AN,112.pdf
- Description:
- IC FF D-TYPE SNGL 8BIT 20DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,368
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Product details
Overview
74ABT374AN,112 from NXP Semiconductors is an octal positive-edge-triggered D-type flip-flop with 3-state outputs, designed for high-speed bus interface and data latching in 5 V TTL-compatible systems. It features 8-bit edge-triggered register functionality, ±32 mA/±64 mA output drive capability, and operates across −40 °C to +85 °C. It is used in address/data bus buffering, microprocessor peripheral interfacing, and memory I/O control.
For engineers reviewing the 74ABT374AN,112 datasheet, 74ABT374AN,112 pinout, 74ABT374AN,112 application, or 74ABT374AN,112 equivalent, this device serves as a high-drive, low-propagation-delay latch for 5 V digital systems requiring robust bus isolation, live insertion support, and JESD78B Class II latch-up immunity.
Technical Context
The 74ABT374AN,112 implements eight independent D-type flip-flops, each triggered on the rising edge of CP, with synchronous data capture referenced to a setup time (tsu(H) = 1.5 ns min) and hold time (th(L) = 1.0 ns min). Its BiCMOS architecture enables both low static current (ICC ≤ 250 µA in disabled state) and high-speed operation (fmax = 200 MHz min over full temperature range).
Independent 3-state control via active-low OE allows output enable/disable without clock dependency. Output buffers deliver +64 mA sink / −32 mA source drive into heavily loaded buses, supporting direct interfacing with MOS memories and microprocessors while maintaining high-impedance OFF-state leakage < 50 µA at VO = 2.7 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Octal D-type flip-flop with 3-state outputs, positive-edge clock trigger |
| Supply Voltage | 4.5 V to 5.5 V - ensures compatibility with standard 5 V TTL and CMOS systems |
| Propagation Delay | tPLH/tPHL ≤ 5.1 ns / 5.2 ns max - enables sub-5 ns timing margins in high-speed bus designs |
| Output Drive | +64 mA sink / −32 mA source - drives heavy capacitive loads and multiple TTL inputs without external buffers |
| Operating Temperature | −40 °C to +85 °C - supports industrial-grade embedded and computing applications |
| Input Clamping | VIK = −1.2 V min - protects against negative transients during live insertion or ESD events |
| ESD Rating | HBM > 2000 V, MM > 200 V - meets JEDEC standards for handling and board-level reliability |
Pinout & Package
74ABT374AN,112 is supplied in a plastic dual in-line package (DIP20), SOT146-1, with 20 leads and 300 mil body width. Pin 1 is index-marked; pins are arranged in two rows with GND (pin 10) and VCC (pin 20) centrally located for noise reduction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OE) | Active-low 3-state enable | Controls all eight outputs simultaneously; HIGH forces high-impedance OFF-state regardless of clock or data |
| 2,5,6,9,12,15,16,19 (Q0–Q7) | Registered 3-state outputs | Reflect D-input state captured at prior CP rising edge when OE is LOW; tri-stated when OE is HIGH |
| 3,4,7,8,13,14,17,18 (D0–D7) | Data inputs | Sampled one setup time before CP rising edge; no internal latching outside register clock domain |
| 11 (CP) | Positive-edge clock input | Edge-triggered only; asynchronous reset or preset not supported |
| 10 (GND) | Ground reference | Primary return path for logic and output currents; requires low-inductance PCB connection |
| 20 (VCC) | Power supply | 5 V nominal supply; decoupling capacitor (0.1 µF ceramic) required within 10 mm of pin |
Key Features
| Feature | Design Value |
|---|---|
| Power-on 3-state | Outputs remain in high-impedance state during power-up, preventing bus contention before system initialization |
| Power-on reset | Internal circuitry ensures known output state (high-Z) at VCC ramp-up, eliminating need for external POR circuitry |
| Live insertion/extraction support | Withstands hot-plug events per JEDEC JESD22-B109; clamping diodes and robust I/O structure prevent damage |
| Latch-up immunity | Exceeds 500 mA per JESD78B Class II Level A - eliminates risk of destructive latch-up in noisy industrial environments |
| BiCMOS process | Combines bipolar speed and CMOS low static power: ICC ≤ 250 µA in disabled state, yet fmax ≥ 200 MHz |
Applications
| Microprocessor Bus Interface | Memory Address Latching |
|---|---|
Use Scenario: Interfacing an 8-bit microprocessor data bus to peripheral devices with timing-critical handshake signals. IC Role / Device Role / Timing Role: Acts as a registered bus transceiver, capturing data on CP rising edge and presenting it to peripherals only when OE is asserted. Use Value: Eliminates need for separate clocked latch + tristate buffer ICs; reduces component count and propagation delay skew between bits. |
Use Scenario: Holding 8-bit address segments for dynamic RAM or EPROM access in legacy computing systems. IC Role / Device Role / Timing Role: Stores address bits synchronized to CPU clock edge, then presents stable address to memory chips during OE-active window. Use Value: Ensures address validity throughout memory access cycle; high drive strength maintains signal integrity across long PCB traces. |
| Industrial I/O Expansion | Digital Signal Routing |
Use Scenario: Adding isolated, latched digital I/O channels to PLC backplanes or sensor acquisition modules. IC Role / Device Role / Timing Role: Buffers and registers control signals from FPGA or MCU to relay drivers or optocouplers, with OE enabling channel-by-channel enable/disable. Use Value: Enables safe hot-swap of I/O modules; power-on 3-state prevents spurious actuation during power sequencing. |
Use Scenario: Routing parallel digital signals between FPGA banks and mixed-voltage peripherals in test equipment. IC Role / Device Role / Timing Role: Provides level-shifted, edge-aligned signal staging with precise timing control via CP and OE. Use Value: Mitigates timing violations caused by inter-bank skew; 3-state isolation prevents back-driving between voltage domains. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal D-type latch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ABT374N | Same logic function, pinout, and DC specs; TI version with identical BiCMOS process and 5 V operation | No functional difference; validated for same bus-interface and memory-latch use cases | Select when TI-sourced supply chain alignment or dual-sourcing is required |
| 74F374N | Lower drive (+20 mA/−15 mA), higher ICC (30 mA typical), no power-on 3-state or live-insertion rating | Not suitable for hot-swap or high-capacitance bus loading; limited to lower-speed legacy designs | Choose only for cost-sensitive, non-industrial applications where 74ABT374AN,112's enhanced drive and robustness are unnecessary |
Compared with SN74ABT374N, the 74ABT374AN,112 offers identical performance and drop-in compatibility; versus 74F374N, it delivers 3× higher output drive, 10× lower static current, and certified live-insertion support - making it superior for modern industrial and computing interfaces.
Availability
74ABT374AN,112 is available at Aetrix Electronics and suitable for industrial control systems, legacy computing upgrades, and embedded microprocessor peripheral interfaces requiring stable component supply and long-term lifecycle assurance.
Supply support for 74ABT374AN,112 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
NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT applications.
The 74ABT374AN,112 belongs to NXP's ABT-series advanced BiCMOS logic family, engineered for high-speed, low-power 5 V digital interfacing in mission-critical industrial and computing infrastructure.
FAQ
What is the maximum clock frequency supported by the 74ABT374AN,112?
The 74ABT374AN,112 guarantees a minimum operating frequency of 200 MHz across the full −40 °C to +85 °C temperature range at VCC = 5.0 V ± 0.5 V. Typical performance reaches 300 MHz at 25 °C. This makes the 74ABT374AN,112 suitable for high-speed bus buffering and real-time data capture in industrial controllers and legacy computing platforms.
Does the 74ABT374AN,112 support live insertion into powered systems?
Yes, the 74ABT374AN,112 is explicitly rated for live insertion and extraction per JEDEC JESD22-B109. Its BiCMOS I/O structure includes integrated clamping diodes and robust ESD protection (HBM > 2000 V), allowing safe hot-plug operation in backplane and modular I/O systems without risk of latch-up or permanent damage.
What is the purpose of the power-on 3-state feature in the 74ABT374AN,112?
The power-on 3-state feature ensures that all Q0–Q7 outputs remain in high-impedance mode during VCC ramp-up, preventing bus contention or unintended signal assertion before system firmware initializes the OE control line. This eliminates the need for external power-on reset circuitry and enhances reliability in complex multi-IC digital systems using the 74ABT374AN,112.
Can the 74ABT374AN,112 operate at 3.3 V supply voltage?
No, the 74ABT374AN,112 is specified only for 4.5 V to 5.5 V operation per its Recommended Operating Conditions table. Attempting 3.3 V operation violates the minimum VCC requirement and will result in undefined logic behavior, degraded noise margins, and failure to meet timing specifications such as tPLH or fmax. For 3.3 V systems, consider NXP's 74LVC374 or compatible families.
How does the 74ABT374AN,112 differ from standard 74LS374 in terms of drive capability?
The 74ABT374AN,112 provides +64 mA sink and −32 mA source output drive, exceeding the 74LS374's ±8 mA by 4–8×. This enables direct driving of heavier loads - such as multiple TTL inputs or long PCB traces - without external buffers. Additionally, the 74ABT374AN,112 achieves sub-5 ns propagation delays versus ~15 ns for 74LS374, delivering significantly improved timing margins in high-speed designs.
74ABT374AN,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74ABT
- Package/Case:
- 20-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Function:
- Standard
- Type:
- D-Type
- Output Type:
- Tri-State, Non-Inverted
- Number of Elements:
- 1
- Number of Bits per Element:
- 8
- Clock Frequency:
- 300 MHz
- Max Propagation Delay @ V, Max CL:
- 4.9ns @ 5V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 32mA, 64mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Current - Quiescent (Iq):
- 250 µA
- Input Capacitance:
- 4 pF
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 20-DIP
74ABT374AN,112 FAQ
1.How can I place an order for 74ABT374AN,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ABT374AN,112 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 74ABT374AN,112 reliable?
The price and inventory of 74ABT374AN,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ABT374AN,112 is usually 5 days.
3.What payment methods are accepted for 74ABT374AN,112?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ABT374AN,112 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74ABT374AN,112?
74ABT374AN,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ABT374AN,112 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 74ABT374AN,112?
For technical support, including 74ABT374AN,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ABT374AN,112 requirements.
6.How does Aetrix verify that 74ABT374AN,112 is sourced from the original manufacturer or authorized distributors?
All 74ABT374AN,112 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 74ABT374AN,112 meets industry standards.
7.What is the process for return or replacement of 74ABT374AN,112?
All 74ABT374AN,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74ABT374AN,112, 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 74ABT374AN,112 part is unused and in its original packaging.
Return procedure for 74ABT374AN,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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