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

NXP Semiconductors 74ABT2240D,118

Name: 74ABT2240D,118
Brand: NXP Semiconductors
SKU: 74ABT2240D,118
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74ABT2240D,118

Manufacturer:: NXP Semiconductors

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: 20-SOIC (0.295", 7.50mm Width)

Datasheet:: 74ABT2240D,118.pdf

Description:: IC BUFFER INVERT 5.5V 20SO

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Product details

Overview

74ABT2240D,118 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 memory address, clock, and data transmission applications. It operates at 4.5–5.5 V, delivers ±32 mA output drive, and achieves 2.8 ns typical t_PLH propagation delay at 5 V with 50 pF load.

For engineers reviewing the 74ABT2240D,118 datasheet, 74ABT2240D,118 pinout, 74ABT2240D,118 application, or 74ABT2240D,118 equivalent, this device is selected for noise-sensitive 5 V TTL-compatible bus interfaces requiring controlled-impedance drive without external termination resistors.

Technical Context

The 74ABT2240D,118 implements dual independent 4-bit inverting buffer sections, each controlled by a dedicated 3-state enable input (1OE and 2OE). Its BiCMOS architecture enables low static current (50 µA typical ICC in 3-state) while sustaining high sink current (−32 mA) and source current (+12 mA).

Each output integrates matched 30 Ω series resistance in both HIGH and LOW states, eliminating need for external termination and reducing ringing and ground bounce in high-speed parallel buses. Power-up 3-state behavior prevents bus contention during power sequencing.

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 systems while maintaining noise margin.
Propagation Delay (t_PLH)	2.8 ns typ. at V_CC = 5 V, C_L = 50 pF - Enables reliable operation in sub-5 ns timing-critical address/data paths.
Output Drive	−32 mA sink / +12 mA source - Supports direct drive of multiple TTL loads or unterminated transmission lines.
Integrated Termination	30 Ω series resistor per output - Eliminates external resistors and reduces PCB area, layout complexity, and signal integrity risk.
Input Capacitance	3 pF max - Minimizes loading on upstream drivers and preserves edge rate in fan-out-heavy configurations.
Operating Temperature	−40 °C to +85 °C - Qualified for industrial-grade embedded and computing applications with ambient thermal stress.
Quiescent Current	50 µA max in 3-state - Reduces system standby power in bus-hold or idle-bus architectures.

Pinout & Package

74ABT2240D,118 is supplied in a plastic small outline package (SO20), 20-pin, 7.5 mm body width (SOT163-1), with standard JEDEC SOIC pin spacing (1.27 mm pitch) and gull-wing leads.

Pin/Terminal	Circuit Role	Design Meaning
1, 19	1OE, 2OE	Active-low enable inputs controlling four outputs each; asserted LOW activates corresponding inverting buffer section.
2, 4, 6, 8, 11, 13, 15, 17	1A0–1A3, 2A0–2A3	Eight buffered data inputs; each inverted and driven to associated Y output when respective OE is active.
3, 5, 7, 9, 12, 14, 16, 18	1Y0–1Y3, 2Y0–2Y3	Eight inverting 3-state outputs with integrated 30 Ω series termination; HIGH-impedance when OE is HIGH.
10	GND	Ground reference for all logic and I/O; must be low-inductance connection to minimize switching noise.
20	V_CC	5 V supply rail; requires local 0.1 µF ceramic decoupling adjacent to pin for stable high-speed operation.

Key Features

Feature	Design Value
Octal inverting 3-state buffers	Dual 4-bit sections allow independent control of two bus segments, enabling flexible partitioning of address/data/control lines.
30 Ω series output termination	Eliminates need for eight discrete 30 Ω resistors, reducing BOM count, layout area, and impedance mismatch risk.
Live insertion/extraction support	Robust ESD protection (≥2000 V HBM) and latch-up immunity (>500 mA per JESD78) permit hot-swap in backplane or modular systems.
Power-up 3-state	Outputs remain high-impedance until V_CC stabilizes, preventing bus contention during power ramp-up or brownout recovery.
BiCMOS process technology	Combines bipolar speed and CMOS low static power, achieving 2.8 ns propagation delay with only 50 µA quiescent current.

Applications

Memory Address Drivers	Clock Distribution Networks
Use Scenario: Driving 20-bit address bus from microcontroller to SRAM or Flash memory in embedded control systems. IC Role / Device Role / Timing Role: Inverting buffer with 30 Ω series termination ensures clean, low-ringing address transitions across 15 cm PCB traces. Use Value: Prevents address decoding errors caused by overshoot/undershoot, eliminating need for external termination resistors and saving 16 passives per device.	Use Scenario: Distributing a 25 MHz system clock to multiple synchronous peripherals (ADC, DAC, FPGA) on a single-layer industrial PCB. IC Role / Device Role / Timing Role: Low-skew inverting buffer with matched output impedance maintains signal integrity across parallel clock fanout. Use Value: Reduces clock jitter induced by trace reflections, improving setup/hold margins by up to 150 ps compared to non-terminated drivers.
Bus Transceivers	Legacy Peripheral Interfaces
Use Scenario: Bidirectional data bus isolation between CPU and ISA-style expansion cards in ruggedized test equipment. IC Role / Device Role / Timing Role: Dual 4-bit sections act as direction-controlled transceivers, with OE pins synchronized to bus control signals. Use Value: Enables deterministic bus arbitration using standard TTL-level handshaking, with no added propagation delay penalty from external termination.	Use Scenario: Interfacing modern microcontrollers to legacy parallel LCD controllers or dot-matrix printer ports operating at 5 V. IC Role / Device Role / Timing Role: Level-shifting and drive-strengthening buffer for TTL-compatible 8-bit data/control buses with long trace runs. Use Value: Restores signal rise/fall times degraded by capacitive loading, supporting reliable 10 MHz data rates over 10 cm ribbon cables.

Memory Address Drivers

Clock Distribution Networks

Use Scenario: Driving 20-bit address bus from microcontroller to SRAM or Flash memory in embedded control systems.

IC Role / Device Role / Timing Role: Inverting buffer with 30 Ω series termination ensures clean, low-ringing address transitions across 15 cm PCB traces.

Use Value: Prevents address decoding errors caused by overshoot/undershoot, eliminating need for external termination resistors and saving 16 passives per device.

Use Scenario: Distributing a 25 MHz system clock to multiple synchronous peripherals (ADC, DAC, FPGA) on a single-layer industrial PCB.

IC Role / Device Role / Timing Role: Low-skew inverting buffer with matched output impedance maintains signal integrity across parallel clock fanout.

Use Value: Reduces clock jitter induced by trace reflections, improving setup/hold margins by up to 150 ps compared to non-terminated drivers.

Bus Transceivers

Legacy Peripheral Interfaces

Use Scenario: Bidirectional data bus isolation between CPU and ISA-style expansion cards in ruggedized test equipment.

IC Role / Device Role / Timing Role: Dual 4-bit sections act as direction-controlled transceivers, with OE pins synchronized to bus control signals.

Use Value: Enables deterministic bus arbitration using standard TTL-level handshaking, with no added propagation delay penalty from external termination.

Use Scenario: Interfacing modern microcontrollers to legacy parallel LCD controllers or dot-matrix printer ports operating at 5 V.

IC Role / Device Role / Timing Role: Level-shifting and drive-strengthening buffer for TTL-compatible 8-bit data/control buses with long trace runs.

Use Value: Restores signal rise/fall times degraded by capacitive loading, supporting reliable 10 MHz data rates over 10 cm ribbon cables.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
74ABT240D,118	Identical electrical specs, pinout, and functionality; differs only in part numbering convention per industry standardization.	No functional difference; used interchangeably in same designs and PCB footprints.	Select based on distributor stock availability or legacy BOM alignment.
SN74ABT2240DBR	TI version with identical 30 Ω termination, same 20-pin SOIC package, but slightly higher t_PHL (4.8 ns max vs 5.8 ns) and tighter V_IL/V_IH thresholds.	Valid drop-in replacement where TI sourcing is preferred; verified compatible in memory address driver validation tests.	Prefer for new designs requiring TI's extended lifecycle support or dual-sourcing strategy.

Compared with 74ABT2240D,118, the 74ABT240D,118 offers identical performance and footprint, while SN74ABT2240DBR provides equivalent termination and drive strength with minor timing variations acceptable in most 5 V bus applications.

Availability

74ABT2240D,118 is available at Aetrix Electronics and suitable for memory address drivers, clock distribution networks, and bus transceiver applications requiring stable component supply across industrial temperature ranges and long production lifecycles.

Supply support for 74ABT2240D,118 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, with roots in Philips' pioneering logic and interface IC development.

The 74ABT2240D,118 belongs to NXP's ABT-series advanced BiCMOS logic family, engineered specifically for high-speed, low-noise 5 V bus interfacing in noise-sensitive computing and control systems.

FAQ

What is the function of the 74ABT2240D,118?

The 74ABT2240D,118 is an octal inverting 3-state buffer with integrated 30 Ω series output termination resistors. It features two independent 4-bit sections, each controlled by its own active-low output enable input (1OE and 2OE), allowing selective activation of eight inverted outputs. This makes the 74ABT2240D,118 ideal for driving noisy or unterminated parallel buses in memory, clock, and data path applications.

Does the 74ABT2240D,118 require external termination resistors?

No, the 74ABT2240D,118 does not require external termination resistors. Each output incorporates a precisely matched 30 Ω series resistor in both HIGH and LOW states, designed to match typical PCB trace impedances and suppress reflections. This internal termination eliminates the need for eight discrete resistors, simplifying layout and improving signal integrity in high-speed 5 V bus designs using the 74ABT2240D,118.

What is the maximum output current capability of the 74ABT2240D,118?

The 74ABT2240D,118 supports −32 mA sink current (I_OL) and +12 mA source current (I_OH) per output under recommended operating conditions. These values are specified at V_CC = 4.5 V to 5.5 V and ambient temperatures from −40 °C to +85 °C, enabling robust drive of multiple TTL loads or moderate-capacitance transmission lines without external buffering - a key capability of the 74ABT2240D,118 in bus-driving roles.

Is the 74ABT2240D,118 pin-compatible with other ABT-series buffers?

Yes, the 74ABT2240D,118 is pin-compatible with the 74ABT240D,118, as confirmed in the official datasheet stating "The 74ABT2240 is the same as the 74ABT240. The part number has been changed to reflect industry standards." Both share identical pinout, electrical characteristics, and SO20 (SOT163-1) packaging, making them fully interchangeable in existing designs using the 74ABT2240D,118.

What package type is used for the 74ABT2240D,118?

The 74ABT2240D,118 is packaged in a plastic small outline package (SO20) with 20 leads and 7.5 mm body width, designated SOT163-1. This JEDEC-standard SOIC package features 1.27 mm lead pitch, gull-wing terminations, and is compatible with standard reflow soldering processes - the exact mechanical form factor specified for the 74ABT2240D,118 in Philips/NXP ordering information.

74ABT2240D,118 Specifications

Product attributes: Attribute value

Manufacturer:: NXP Semiconductors

Series:: 74ABT

Package/Case:: 20-SOIC (0.295", 7.50mm Width)

Packaging:: Tape & Reel (TR)

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-SO

74ABT2240D,118 FAQ

1.How can I place an order for 74ABT2240D,118 through Aetrix?

Please submit a Request for Quotation (RFQ) for 74ABT2240D,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 74ABT2240D,118 reliable?

The price and inventory of 74ABT2240D,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ABT2240D,118 is usually 5 days.

3.What payment methods are accepted for 74ABT2240D,118?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ABT2240D,118 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74ABT2240D,118?

74ABT2240D,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74ABT2240D,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 74ABT2240D,118?

For technical support, including 74ABT2240D,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ABT2240D,118 requirements.

6.How does Aetrix verify that 74ABT2240D,118 is sourced from the original manufacturer or authorized distributors?

All 74ABT2240D,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 74ABT2240D,118 meets industry standards.

7.What is the process for return or replacement of 74ABT2240D,118?

All 74ABT2240D,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74ABT2240D,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 74ABT2240D,118 part is unused and in its original packaging.

Return procedure for 74ABT2240D,118:

1.Submit a request within 90 days.

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

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