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Nexperia USA Inc. 74ABT32D,118
- Part No.:
- 74ABT32D,118
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Gates and Inverters
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
74ABT32D,118.pdf
- Description:
- IC GATE OR 4CH 2-INP 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:2,487
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Product details
Overview
74ABT32D from Nexperia is a quad 2-input OR gate logic IC in SO14 package, operating from 4.5 V to 5.5 V supply, with propagation delays as low as 1.0 ns (tPLH/tPHL), IOFF-enabled partial power-down protection, and guaranteed operation from –40 °C to +85 °C. It performs discrete Boolean OR logic for digital signal routing in bus interface and control logic circuits.
For engineers reviewing the 74ABT32D datasheet, 74ABT32D pinout, 74ABT32D application, or 74ABT32D equivalent, this page delivers verified pin functions, real-world timing behavior, thermal and ESD robustness data, and validated drop-in alternatives for industrial control and legacy TTL-compatible systems.
Technical Context
The 74ABT32D implements four independent 2-input OR gates using BiCMOS technology, enabling high-speed switching (typ. 2.1 ns propagation) while maintaining TTL-level input compatibility and 20 mA output drive capability. Its IOFF circuit actively disables outputs during VCC = 0 V, preventing backflow current in hot-swap or partial-power-down configurations.
All gates share a common VCC (Pin 14) and GND (Pin 7), with no internal inter-gate coupling or shared enable controls. The device exhibits matched propagation delay skew ≤0.5 ns between any two outputs under identical switching conditions, supporting synchronous multi-channel logic decisions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5 V to 5.5 V - Ensures stable operation across standard 5 V rail tolerances and brown-out resilience. |
| Propagation Delay (tPLH/tPHL) | 1.0–3.8 ns - Enables sub-4 ns gate-to-gate timing in high-speed control paths at 5 V. |
| Output Drive (IOL/IOH) | 20 mA sink / –15 mA source - Directly drives multiple TTL inputs or small capacitive loads without buffering. |
| IOFF Leakage (VCC = 0 V) | ±100 μA max - Prevents damaging back-current when powered down while other system rails remain active. |
| Operating Temperature | –40 °C to +85 °C - Qualified for industrial ambient environments without derating. |
| ESD Robustness (HBM/CDM) | 2000 V HBM / 1000 V CDM - Survives handling and board-level electrostatic events per JEDEC JS-001/JS-002. |
Pinout & Package
74ABT32D is housed in a plastic small outline package (SO14, SOT108-1) with 14 leads and 3.9 mm body width. Pin 1 is marked by a notch or bevel; the package is RoHS-compliant and lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A, 2A, 3A, 4A (Pins 1, 4, 9, 12) | Input A of Gate n | First OR input per gate; accepts TTL-compatible voltage levels (VIH ≥ 2.0 V, VIL ≤ 0.8 V). |
| 1B, 2B, 3B, 4B (Pins 2, 5, 10, 13) | Input B of Gate n | Second OR input per gate; electrically identical to A inputs; no priority or inversion. |
| 1Y, 2Y, 3Y, 4Y (Pins 3, 6, 8, 11) | Output Y of Gate n | Active-high OR result; capable of sourcing –15 mA or sinking 20 mA into load. |
| VCC (Pin 14) | Positive Supply | Primary 5 V rail connection; powers all four gates and IOFF circuitry. |
| GND (Pin 7) | Ground Reference | Common return path for all inputs, outputs, and internal biasing; must be low-impedance. |
Key Features
| Feature | Design Value |
|---|---|
| BiCMOS process architecture | Combines bipolar speed and CMOS low static power: typ. ICC = 2 μA at 25 °C, enabling fast transitions without excessive quiescent draw. |
| IOFF partial power-down mode | Automatically disables all outputs when VCC = 0 V, eliminating backfeed risk during live insertion or mixed-rail sequencing. |
| TTL-level input compatibility | VIH = 2.0 V min and VIL = 0.8 V max allow direct connection to legacy 5 V TTL outputs without level-shifting. |
| Latch-up immunity | Exceeds 500 mA per JESD78B Class II Level A - withstands transient overcurrent events without destructive latch-up. |
Applications
| Industrial Bus Interface | Legacy System Logic Expansion |
|---|---|
|
Use Scenario: OR-ing address strobes or interrupt request lines across multiple peripheral modules on an ISA or LPC bus. IC Role / Device Role / Timing Role: Discrete OR combiner for asynchronous control signals; resolves contention by aggregating multiple active-low IRQs into one system interrupt line. Use Value: Eliminates need for external diode-OR networks, reducing board space and improving signal integrity via matched propagation delay (≤0.5 ns skew). |
Use Scenario: Adding parallel logic functionality to aging microcontroller-based controllers where GPIOs are exhausted. IC Role / Device Role / Timing Role: Standalone combinational logic block implementing OR-based enable gating for memory-mapped peripherals or I/O expanders. Use Value: Provides deterministic 1.0 ns minimum propagation with full TTL compatibility-no glue logic redesign required. |
| Hot-Swap Control Logic | Power Sequencing Monitor |
|
Use Scenario: Enabling/disabling power rails in modular backplane systems where cards may be inserted or removed while main power remains active. IC Role / Device Role / Timing Role: OR gate detecting any card's "ready" signal to assert global "backplane OK" status. Use Value: IOFF protection ensures safe operation during partial power states-outputs float cleanly when local VCC is absent. |
Use Scenario: Validating correct startup order of multiple DC/DC converters in FPGA or DSP power domains. IC Role / Device Role / Timing Role: Combining individual "PGOOD" outputs into a single "system ready" assertion signal. Use Value: Guaranteed –40 °C to +85 °C operation and ±100 μA IOFF leakage ensure reliability across thermal cycling and rail sequencing variations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad 2-input OR gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ABT32N | Same logic function and pinout; DIP-14 package instead of SO14; slightly higher ICC (max 50 μA vs. 50 μA typical). | Preferred for through-hole prototyping or legacy wave-soldered boards; lacks surface-mount thermal performance. | Select when manual assembly or socket-based testing is required; not suitable for high-density PCBs. |
| 74LVC32APW | Lower VCC range (1.65–3.6 V); CMOS-only (no BiCMOS); tPD up to 4.2 ns; no IOFF support. | Targets 3.3 V systems only; unsuitable for mixed 5 V/3.3 V interfaces or partial power-down use cases. | Choose only for new 3.3 V designs where IOFF and TTL compatibility are unnecessary. |
Compared with SN74ABT32N and 74LVC32APW, the 74ABT32D uniquely combines 5 V TTL compatibility, sub-4 ns timing, and IOFF protection in a compact SO14 package-making it the sole option for industrial hot-swap and legacy bus interface applications requiring all three attributes.
Availability
74ABT32D is available at Aetrix Electronics and suitable for industrial bus interface, legacy system logic expansion, hot-swap control logic, and power sequencing monitor applications requiring stable component supply and long-term manufacturability.
Supply support for 74ABT32D 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 leading Dutch semiconductor manufacturer specializing in high-performance logic, analog, and discrete components, with roots in NXP's standard logic division.
The 74ABT series targets industrial and computing applications demanding robust 5 V logic with advanced power management features like IOFF-designed specifically for systems requiring reliable operation during partial power-down and mixed-voltage interfacing.
FAQ
Does 74ABT32D support mixed-voltage operation between inputs and VCC?
No. Inputs must remain within 0 V to VCC, and VIH/VIL thresholds are specified relative to the applied VCC. Applying 3.3 V inputs while VCC = 5 V is acceptable per datasheet (VI ≤ VCC), but 5 V inputs into a 3.3 V-powered device would violate absolute maximum ratings and cause damage.
Can 74ABT32D outputs safely drive a 50 Ω transmission line?
Not directly. With 20 mA sink capability and ~10 Ω typical output impedance, driving 50 Ω requires series termination or a dedicated line driver. The device is optimized for fanout into CMOS/TTL loads (e.g., 10 × 74ABT inputs), not RF impedance matching.
Is the IOFF feature activated automatically, or does it require external control?
IOFF activates automatically when VCC drops to 0 V-no external enable signal or configuration is needed. The internal circuit detects VCC loss and disables all outputs to prevent back-current, making it transparent to system design.
How does 74ABT32D compare to 74ACT32 in terms of speed and drive strength?
74ABT32D offers faster propagation (1.0–3.8 ns vs. 1.5–5.5 ns for 74ACT32) and stronger output drive (20 mA sink vs. 24 mA for ACT), but with lower input capacitance (3 pF vs. 4.5 pF) and superior IOFF protection-making ABT preferred for high-speed, hot-swap-critical designs.
74ABT32D,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74ABT
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- OR Gate
- Number of Circuits:
- 4
- Number of Inputs:
- 2
- Features:
- -
- Voltage - Supply:
- 4.5V ~ 5.5V
- Current - Quiescent (Max):
- 50 µA
- Current - Output High, Low:
- 15mA, 20mA
- Input Logic Level - Low:
- 0.8V
- Input Logic Level - High:
- 2V
- Max Propagation Delay @ V, Max CL:
- 3.4ns @ 5V, 50pF
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SO
74ABT32D,118 FAQ
1.How can I place an order for 74ABT32D,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ABT32D,118 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 74ABT32D,118 reliable?
The price and inventory of 74ABT32D,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ABT32D,118 is usually 5 days.
3.What payment methods are accepted for 74ABT32D,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ABT32D,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74ABT32D,118?
74ABT32D,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ABT32D,118 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 74ABT32D,118?
For technical support, including 74ABT32D,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ABT32D,118 requirements.
6.How does Aetrix verify that 74ABT32D,118 is sourced from the original manufacturer or authorized distributors?
All 74ABT32D,118 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 74ABT32D,118 meets industry standards.
7.What is the process for return or replacement of 74ABT32D,118?
All 74ABT32D,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74ABT32D,118, 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 74ABT32D,118 part is unused and in its original packaging.
Return procedure for 74ABT32D,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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