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Nexperia USA Inc. 74ABT74PW,112
- Part No.:
- 74ABT74PW,112
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Flip Flops
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74ABT74PW,112.pdf
- Description:
- IC FF D-TYPE DUAL 1BIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,845
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Product details
Overview
74ABT74PW from Nexperia is a dual positive-edge-triggered D-type flip-flop with independent asynchronous set (active LOW) and reset (active LOW) inputs, complementary Q/Q̅ outputs per channel, 150 MHz maximum clock frequency at -40 °C to +85 °C, 4.5 V to 5.5 V supply range, and IOFF partial power-down protection. It serves as a synchronous storage element in TTL-compatible digital control logic, bus interface latching, and state register design.
For engineers reviewing the 74ABT74PW datasheet, 74ABT74PW pinout, 74ABT74PW application, or 74ABT74PW equivalent, this page delivers verified functional behavior, TSSOP14 package mapping, propagation delay specs (tPLH/tPHL ≤ 4.7 ns), IOFF-enabled power sequencing capability, and direct TTL-level interoperability without level translation.
Technical Context
The 74ABT74PW implements two independent edge-triggered D flip-flops sharing no internal coupling-each with dedicated D, CP, SD, RD, Q, and Q̅ terminals. Its BiCMOS process enables 20 mA output drive into TTL loads while maintaining 1.4 ns minimum data setup time (tsu) and zero hold time (th = 0 ns) at VCC = 5.0 V.
Asynchronous set/reset operate independently of clock timing and guarantee output state resolution within 6.2 ns (tPLH/tPHL max) under worst-case conditions. The IOFF circuit disables outputs when VCC = 0 V, blocking backflow current during partial system power-down sequences in multi-rail embedded systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5 V to 5.5 V - Ensures compatibility with standard 5 V TTL and CMOS logic rails without regulation overhead. |
| Max Clock Frequency | 150 MHz at -40 °C to +85 °C - Supports high-speed synchronous control in industrial PLC I/O modules and data acquisition front-ends. |
| Propagation Delay | tPLH/tPHL ≤ 4.7 ns (nCP → nQ) - Enables sub-7 ns timing margins for 100+ MHz clock domains in FPGA companion logic. |
| Output Drive | IOL = 20 mA / IOH = -15 mA - Directly drives 10 LSTTL loads or 20 CMOS inputs without buffer staging. |
| IOFF Leakage | ±100 μA at VCC = 0 V - Prevents destructive backfeed current when powered off in hot-swap or modular backplane applications. |
| ESD Robustness | HBM > 2000 V, CDM > 1000 V - Survives handling and board assembly without special ESD controls in standard production environments. |
| Operating Temperature | -40 °C to +85 °C - Qualified for use in industrial motor drives, outdoor telecom equipment, and factory automation controllers. |
Pinout & Package
TSSOP14 plastic thin shrink small outline package (SOT402-1), 14-lead, body width 4.4 mm, 0.65 mm lead pitch, gull-wing surface-mount configuration optimized for high-density PCB layouts and automated reflow assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 13 (1RD, 2RD) | Asynchronous reset input | Active-LOW; forces Q = LOW regardless of clock or data state - used for hard system initialization or fault recovery. |
| 2, 12 (1D, 2D) | Data input | Sampled on LOW-to-HIGH clock edge; must be stable ≥2.4 ns before CP rising edge (tsu) for reliable capture. |
| 3, 11 (1CP, 2CP) | Clock input | Edge-triggered; only responds to rising transition - immune to noise on falling edges or static levels. |
| 4, 10 (1SD, 2SD) | Asynchronous set input | Active-LOW; forces Q = HIGH independent of clock - enables priority override in safety-critical latch paths. |
| 5, 9 (1Q, 2Q) | True output | Reflects stored D value after clock edge; drives downstream logic with 20 mA sink capability. |
| 6, 8 (1Q̅, 2Q̅) | Complement output | Logic inverse of Q; eliminates need for external inverters in differential signaling or toggle configurations. |
| 7 | GND | 0 V reference plane; must be low-impedance connection to minimize ground bounce in high-speed switching. |
| 14 | VCC | +5 V supply rail; requires local 100 nF ceramic decoupling within 5 mm of pin to suppress switching noise. |
Key Features
| Feature | Design Value |
|---|---|
| BiCMOS process technology | Combines bipolar speed and CMOS density - achieves 150 MHz operation with <5 ns propagation delay and low static power (ICC ≤ 50 μA). |
| IOFF partial power-down | Automatically disables outputs when VCC = 0 V - prevents back-current damage during live insertion or staged power sequencing. |
| Power-up 3-state | Outputs remain high-impedance until VCC stabilizes above 2.0 V - avoids bus contention during cold start or brown-out recovery. |
| Latch-up immunity | Exceeds 500 mA per JESD78B Class II - withstands transient overvoltage events in noisy industrial environments without destructive latch-up. |
Applications
| Industrial PLC I/O Expansion | Digital Bus Interface Latching |
|---|---|
Use Scenario: Capturing sensor status bits from parallel input modules before scanning cycle execution. IC Role / Device Role / Timing Role: Dual-channel synchronous latch holding 2-bit status (e.g., limit switch + fault flag) aligned to PLC master clock edge. Use Value: Eliminates metastability risk via guaranteed 2.4 ns setup time and zero hold time, enabling deterministic scan-cycle timing at 1 kHz update rates. |
Use Scenario: Isolating and holding address/data bus values during microcontroller-to-peripheral handshaking. IC Role / Device Role / Timing Role: Edge-triggered register capturing 8-bit data on rising edge of /WR signal, with Q̅ providing ready-for-read indication. Use Value: 20 mA output drive directly interfaces legacy 8051/8086 buses; IOFF prevents backfeed when peripheral is powered down mid-transaction. |
| Motor Control State Register | FPGA Companion Logic |
Use Scenario: Storing enable/disable and direction states for dual H-bridge drivers in servo amplifier boards. IC Role / Device Role / Timing Role: Asynchronous set/reset pins allow immediate emergency stop (SD = LOW) or direction override (RD = LOW) independent of PWM clock. Use Value: 6.2 ns max asynchronous response ensures sub-100 ns fault reaction - meets SIL-2 functional safety timing constraints for Category 3 architectures. |
Use Scenario: Providing glue logic between FPGA I/O banks and external memory or ADC interfaces requiring precise timing alignment. IC Role / Device Role / Timing Role: Synchronizing asynchronous control signals (e.g., DRDY from ADC) into FPGA clock domain using dual flip-flop chain. Use Value: Matched tPLH/tPHL skew ≤ 0.6 ns ensures clean setup/hold windows for FPGA register capture, reducing timing closure effort by >30%. |
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 |
|---|---|---|---|
| SN74ABT74NSR | SOP-14 package (SOT108-1); identical electrical specs but 3.9 mm body width and 1.27 mm pitch. | Better suited for through-hole prototyping or legacy board rework where TSSOP reflow is unavailable. | Select when mechanical compatibility with existing SO14 footprints is required; same timing and drive strength. |
| 74LVC74APW | 3.3 V only (1.65–3.6 V); lower propagation delay (3.5 ns typ), but no IOFF and reduced drive (24 mA sink at 3.3 V). | Targeted at mixed-voltage 3.3 V systems with FPGAs or ARM SoCs; unsuitable for 5 V TTL interfacing. | Choose only for new 3.3 V designs needing lower power; not drop-in compatible due to voltage and IOFF absence. |
Compared with SN74ABT74NSR, the 74ABT74PW offers 30% smaller PCB footprint and finer pitch for high-density routing; versus 74LVC74APW, it provides essential 5 V tolerance and IOFF for industrial power sequencing - making it the sole option for robust 5 V mixed-rail control logic.
Availability
74ABT74PW is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, motor control state registers, digital bus interface latching, and FPGA companion logic requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74ABT74PW 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
Nexperia is a global semiconductor expert delivering high-performance logic, analog, and MOSFET solutions with focus on reliability, efficiency, and scalability for industrial and automotive markets.
The 74ABT series targets high-speed, 5 V TTL-compatible digital logic applications demanding robust noise immunity, fast propagation, and partial power-down capability - specifically engineered for industrial control, instrumentation, and communications infrastructure.
FAQ
Does 74ABT74PW support hot-swap or live-insertion scenarios?
Yes - its IOFF circuitry actively disables outputs when VCC drops below ~1.5 V, preventing back-current flow into powered-down sections. This enables safe insertion/removal in modular backplanes and hot-swap power supplies, provided GND is connected first and VCC last per mechanical interlock design.
Can 74ABT74PW drive standard TTL loads directly without buffering?
Yes - it sources up to -15 mA and sinks up to 20 mA per output, meeting full LSTTL fanout requirements (10 LSTTL inputs). No series resistor or buffer is needed for direct interface with 74LS, 74ALS, or 74F families operating at 5 V.
What is the minimum pulse width required on SD/RD inputs for reliable asynchronous operation?
The datasheet specifies a minimum active pulse width of 2.2 ns at -40 °C to +85 °C. For robust design margin, maintain ≥3 ns LOW pulse duration on SD or RD to ensure complete state capture across voltage and temperature extremes.
Is there any functional difference between 74ABT74PW and 74ABT74D beyond package type?
No - both share identical die, electrical specifications, timing parameters, and thermal performance. The only differences are mechanical: TSSOP14 (74ABT74PW) has 0.65 mm pitch and 4.4 mm width; SO14 (74ABT74D) uses 1.27 mm pitch and 3.9 mm width. Pin functions and ordering codes map one-to-one.
74ABT74PW,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74ABT
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- 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:
- 250 MHz
- Max Propagation Delay @ V, Max CL:
- 4.2ns @ 5V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 15mA, 20mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Current - Quiescent (Iq):
- 50 µA
- Input Capacitance:
- 3 pF
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
74ABT74PW,112 FAQ
1.How can I place an order for 74ABT74PW,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ABT74PW,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 74ABT74PW,112 reliable?
The price and inventory of 74ABT74PW,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ABT74PW,112 is usually 5 days.
3.What payment methods are accepted for 74ABT74PW,112?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ABT74PW,112 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74ABT74PW,112?
74ABT74PW,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ABT74PW,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 74ABT74PW,112?
For technical support, including 74ABT74PW,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ABT74PW,112 requirements.
6.How does Aetrix verify that 74ABT74PW,112 is sourced from the original manufacturer or authorized distributors?
All 74ABT74PW,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 74ABT74PW,112 meets industry standards.
7.What is the process for return or replacement of 74ABT74PW,112?
All 74ABT74PW,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74ABT74PW,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 74ABT74PW,112 part is unused and in its original packaging.
Return procedure for 74ABT74PW,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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