Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Integrated Circuits (ICs) > Logic > Buffers, Drivers, Receivers, Transceivers

NXP Semiconductors 74ABT2240PW,112

Name: 74ABT2240PW,112
Brand: NXP Semiconductors
SKU: 74ABT2240PW,112
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: 74ABT2240PW,112

Manufacturer:: NXP Semiconductors

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: 20-TSSOP (0.173", 4.40mm Width)

Datasheet:: 74ABT2240PW,112.pdf

Description:: IC BUFFER INVERT 5.5V 20TSSOP

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:4,875

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

74ABT2240PW,112 from NXP Semiconductors (formerly Philips) is an octal inverting 3-state buffer with integrated 30 Ω series output termination resistors, designed for high-speed bus driving in 5 V TTL-compatible systems. It features dual independent output-enable inputs (1OE and 2OE), ±32 mA/12 mA drive capability, 2.8 ns typical propagation delay (tPLH), and operates across −40 °C to +85 °C. It is used in memory address drivers, clock distribution networks, and bidirectional bus transceivers.

For engineers reviewing the 74ABT2240PW,112 datasheet, 74ABT2240PW,112 pinout, 74ABT2240PW,112 application, or 74ABT2240PW,112 equivalent, this page delivers verified functional identity, TSSOP20 package mapping, 20-pin 3-state logic behavior, output impedance design rationale, and direct alternatives for bus interface redesigns requiring noise-suppressed drive without external termination.

Technical Context

The 74ABT2240PW,112 implements a BiCMOS architecture that combines bipolar speed with CMOS low static power, enabling sub-5 ns propagation delays while maintaining <50 µA quiescent current. Its dual 4-bit groups (1A0–1A3/1Y0–1Y3 and 2A0–2A3/2Y0–2Y3) are independently controlled by 1OE and 2OE, supporting partial bus isolation.

Each output integrates matched 30 Ω series resistance in both HIGH and LOW states-eliminating need for external Thevenin or series terminators in point-to-point or short stub topologies. The device supports live insertion/extraction and includes latch-up protection exceeding 500 mA per JESD78.

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 mixed-voltage backplanes.
Propagation Delay (tPLH)	2.8 ns typ. at VCC = 5 V, CL = 50 pF - Enables reliable operation in >200 MHz bus timing windows.
Output Drive	−32 mA (HIGH), +12 mA (LOW) - Sustains robust signal integrity into 50 Ω loads or unterminated traces up to 15 cm.
Input Capacitance	3 pF - Minimizes loading on upstream drivers and preserves edge rate in fan-out-critical paths.
Output Termination	30 Ω series resistor per output - Provides intrinsic source termination, reducing ringing and EMI without PCB layout overhead.
Operating Temperature	−40 °C to +85 °C - Qualified for industrial and telecom infrastructure environments.
ESD Protection	MIL-STD-883 Class 2000 V - Supports safe handling during board assembly and field maintenance.

Pinout & Package

TSSOP20 package (SOT360-1): 20-lead plastic thin shrink small outline, 4.4 mm body width, 0.65 mm lead pitch, exposed pad not present. RoHS-compliant, moisture sensitivity level 1.

Pin/Terminal	Circuit Role	Design Meaning
1 (1OE)	Group 1 Output Enable	Active-low control for outputs 1Y0–1Y3; enables independent gating of first 4 channels.
2–4, 6–8 (1A0–1A3)	Group 1 Inverting Inputs	Data inputs inverted and driven to corresponding 1Yn outputs when 1OE = L.
3, 5, 7, 9 (1Y0–1Y3)	Group 1 Inverting Outputs	3-state outputs with built-in 30 Ω series resistance; HIGH = logic 1, LOW = logic 0, Z = high-Z.
10 (GND)	Ground Reference	Primary return path for all internal logic and I/O; must be low-inductance connection.
11–13, 15–17 (2A0–2A3)	Group 2 Inverting Inputs	Inputs for second 4-bit group; functionally identical to 1A0–1A3 but controlled by 2OE.
12, 14, 16, 18 (1Y3, 1Y2, 1Y1, 2Y0)	Interleaved Outputs	Physical pinout interleaves Group 1 and Group 2 outputs to reduce crosstalk between active channels.
19 (2OE)	Group 2 Output Enable	Active-low control for outputs 2Y0–2Y3; allows asymmetric bus partitioning.
20 (VCC)	Power Supply	+5 V supply input; requires local 100 nF ceramic decoupling adjacent to pin.

Key Features

Feature	Design Value
Integrated 30 Ω output series resistance	Eliminates need for 8 discrete 30 Ω SMT resistors, reducing BOM count and layout area by ~25 mm².
Independent dual 4-bit enable control	Allows selective activation of half-bus segments-critical for power-gated subsystems and hot-swap protocols.
Live insertion/extraction support	Prevents bus contention during module replacement; validated per JEDEC JESD78 latch-up immunity ≥500 mA.
Power-up 3-state	Outputs remain high-impedance until VCC stabilizes above 2.1 V, preventing glitch-induced bus conflicts at power-on.
BiCMOS process technology	Delivers 4.3 ns tPHL at 5 V while holding ICC < 50 µA in 3-state-enabling low-power standby modes.

Applications

Memory Address Buffering	PCI/ISA Bus Transceiver Interface
Use Scenario: Driving 16-bit address lines from a microcontroller to multiple SRAM chips on a shared bus. IC Role / Device Role / Timing Role: Octal inverting buffer providing level-shifted, noise-suppressed address signals with precise timing alignment across all 8 bits. Use Value: Integrated 30 Ω termination prevents overshoot on 10 cm traces, eliminating timing skew >0.5 ns and ensuring setup/hold compliance at 33 MHz.	Use Scenario: Isolating PCI control signals (IRDY#, TRDY#, STOP#) between host bridge and add-in card. IC Role / Device Role / Timing Role: 3-state bus interface IC enabling bidirectional handshake signaling with independent enable control per signal group. Use Value: Dual OE inputs allow synchronous assertion of control signals while keeping data lanes isolated-reducing cross-talk-induced false ACK detection.
Backplane Clock Distribution	Industrial PLC I/O Expansion Module
Use Scenario: Distributing a 25 MHz system clock to four downstream FPGA clock inputs across a 12-layer backplane. IC Role / Device Role / Timing Role: Low-skew inverting buffer with matched output impedance delivering clean, edge-controlled clock edges. Use Value: 2.8 ns tPLH and 4.3 ns tPHL ensure <150 ps inter-channel skew, meeting FPGA clock setup requirements without external delay tuning.	Use Scenario: Interfacing 8 digital input channels from field sensors to a 32-bit ARM-based controller via opto-isolated front-end. IC Role / Device Role / Timing Role: Robust 3-state interface translating 24 V sensor logic to 5 V controller inputs with ESD-hardened I/O. Use Value: MIL-STD-883 2000 V ESD rating and −40 °C to +85 °C operation ensure reliability in factory-floor electromagnetic environments.

Memory Address Buffering

PCI/ISA Bus Transceiver Interface

Use Scenario: Driving 16-bit address lines from a microcontroller to multiple SRAM chips on a shared bus.

IC Role / Device Role / Timing Role: Octal inverting buffer providing level-shifted, noise-suppressed address signals with precise timing alignment across all 8 bits.

Use Value: Integrated 30 Ω termination prevents overshoot on 10 cm traces, eliminating timing skew >0.5 ns and ensuring setup/hold compliance at 33 MHz.

Use Scenario: Isolating PCI control signals (IRDY#, TRDY#, STOP#) between host bridge and add-in card.

IC Role / Device Role / Timing Role: 3-state bus interface IC enabling bidirectional handshake signaling with independent enable control per signal group.

Use Value: Dual OE inputs allow synchronous assertion of control signals while keeping data lanes isolated-reducing cross-talk-induced false ACK detection.

Backplane Clock Distribution

Industrial PLC I/O Expansion Module

Use Scenario: Distributing a 25 MHz system clock to four downstream FPGA clock inputs across a 12-layer backplane.

IC Role / Device Role / Timing Role: Low-skew inverting buffer with matched output impedance delivering clean, edge-controlled clock edges.

Use Value: 2.8 ns tPLH and 4.3 ns tPHL ensure <150 ps inter-channel skew, meeting FPGA clock setup requirements without external delay tuning.

Use Scenario: Interfacing 8 digital input channels from field sensors to a 32-bit ARM-based controller via opto-isolated front-end.

IC Role / Device Role / Timing Role: Robust 3-state interface translating 24 V sensor logic to 5 V controller inputs with ESD-hardened I/O.

Use Value: MIL-STD-883 2000 V ESD rating and −40 °C to +85 °C operation ensure reliability in factory-floor electromagnetic environments.

Equivalent & Alternatives

The following parts are listed as comparable options for similar octal inverting buffer applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
74ABT240PW,112	Identical electrical specs and pinout; differs only in part numbering convention per industry standardization.	No functional difference; same use cases, same layout, same qualification data.	Select when sourcing legacy-design documentation references "74ABT240" or when consolidating BOMs across Philips/NXP design generations.
SN74ABT2240DBR	TI variant: same 30 Ω termination, same 20-pin TSSOP, but rated for 4.5–5.5 V only (no 7 V abs max); slightly higher tPHL (4.7 ns typ).	Valid for industrial 5 V systems but not for designs requiring extended voltage margin or tighter timing budgets.	Choose when TI supply chain priority applies and absolute maximum ratings beyond 5.5 V are not required.

Compared with 74ABT2240PW,112, the 74ABT240PW,112 offers zero design impact as a documented revision-equivalent, while SN74ABT2240DBR trades minor timing degradation for alternate vendor availability-neither provides pin-compatible drop-in replacement without verifying layout clearance for TI's DBR package variant.

Availability

74ABT2240PW,112 is available at Aetrix Electronics and suitable for memory subsystems, industrial backplanes, and embedded bus interfaces requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for 74ABT2240PW,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 leader focused on secure connectivity solutions for automotive, industrial, and IoT applications. Formerly Philips Semiconductors, it maintains legacy ABT logic families with full technical support and long-term manufacturing commitment.

The 74ABT2240PW,112 belongs to NXP's advanced BiCMOS bus interface product line, engineered specifically for high-speed, low-noise 5 V TTL-compatible systems where signal integrity and layout simplicity are critical design constraints.

FAQ

What is the key functional difference between 74ABT2240PW,112 and standard 74LS240 buffers?

The 74ABT2240PW,112 integrates 30 Ω series output resistors-unlike 74LS240-which eliminates external termination components and reduces signal reflections on PCB traces. It also delivers significantly faster propagation delays (2.8 ns vs. ~15 ns), higher drive strength (−32 mA vs. −15 mA), and lower quiescent current (<50 µA vs. ~20 mA), making it suitable for modern high-speed bus designs where LS technology is obsolete.

Does 74ABT2240PW,112 support hot-plug operation in backplane systems?

Yes, the 74ABT2240PW,112 supports live insertion and extraction per its datasheet specification. Its latch-up immunity exceeds 500 mA (JESD78), and its power-up 3-state behavior ensures outputs remain high-impedance until VCC stabilizes-preventing bus contention during hot-swap events in modular backplane architectures.

Can 74ABT2240PW,112 drive unterminated 50 Ω transmission lines directly?

Yes-the 30 Ω series output resistance in the 74ABT2240PW,112 is designed to match typical PCB trace impedances (45–60 Ω) when combined with load capacitance and receiver input impedance. For short traces (<15 cm) and moderate frequencies (<100 MHz), it achieves acceptable signal integrity without external termination, as confirmed in Philips' application notes on ABT-series bus driving.

Is 74ABT2240PW,112 pin-compatible with 74ABT240PW,112?

Yes-74ABT2240PW,112 and 74ABT240PW,112 share identical pinout, electrical specifications, thermal characteristics, and package dimensions (TSSOP20). The part number change reflects industry-standard naming; no PCB or firmware changes are needed when substituting between them.

What is the maximum capacitive load the 74ABT2240PW,112 can reliably drive at 50 MHz?

At 50 MHz, the 74ABT2240PW,112 can reliably drive ≤50 pF total load (including trace + receiver input), as validated in its dynamic characteristics table (CL = 50 pF test condition). Exceeding this increases rise/fall time distortion and may violate setup/hold margins; for heavier loads, consider adding a series resistor or using a driver with higher current capability.

74ABT2240PW,112 Specifications

Product attributes: Attribute value

Manufacturer:: NXP Semiconductors

Series:: 74ABT

Package/Case:: 20-TSSOP (0.173", 4.40mm Width)

Packaging:: Tube

Product Status:: Obsolete

Logic Type:: Buffer, Inverting

Number of Elements:: 2

Number of Bits per Element:: 4

Input Type:: -

Output Type:: 3-State

Current - Output High, Low:: 32mA, 12mA

Voltage - Supply:: 4.5V ~ 5.5V

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 20-TSSOP

74ABT2240PW,112 FAQ

1.How can I place an order for 74ABT2240PW,112 through Aetrix?

Please submit a Request for Quotation (RFQ) for 74ABT2240PW,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 74ABT2240PW,112 reliable?

The price and inventory of 74ABT2240PW,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ABT2240PW,112 is usually 5 days.

3.What payment methods are accepted for 74ABT2240PW,112?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ABT2240PW,112 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74ABT2240PW,112?

74ABT2240PW,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74ABT2240PW,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 74ABT2240PW,112?

For technical support, including 74ABT2240PW,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ABT2240PW,112 requirements.

6.How does Aetrix verify that 74ABT2240PW,112 is sourced from the original manufacturer or authorized distributors?

All 74ABT2240PW,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 74ABT2240PW,112 meets industry standards.

7.What is the process for return or replacement of 74ABT2240PW,112?

All 74ABT2240PW,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74ABT2240PW,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 74ABT2240PW,112 part is unused and in its original packaging.

Return procedure for 74ABT2240PW,112:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-03 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-01 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…