NXP Semiconductors 74ABT2241D,112
- Part No.:
- 74ABT2241D,112
- Manufacturer:
- NXP Semiconductors
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
74ABT2241D,112.pdf
- Description:
- IC BUFF NON-INVERT 5.5V 20SO
- Quantity:
- Payment:

- Shipping:

Inventory:2,296
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Product details
Overview
74ABT2241D,112 from NXP Semiconductors (formerly Philips) is an octal 3-state buffer with integrated 30Ω series output termination resistors, designed for high-speed bus driving in memory address, clock, and bus transceiver applications. It features dual independent output enables (1OE, 2OE), ±32mA/±12mA drive capability, and operates over –40°C to +85°C at 4.5–5.5V supply.
For engineers reviewing the 74ABT2241D,112 datasheet, 74ABT2241D,112 pinout, 74ABT2241D,112 application, or 74ABT2241D,112 equivalent, key selection criteria include its built-in series termination for noise reduction, dual OE control per four-channel group, and BiCMOS performance balancing speed (2.9ns typical tPLH) with low static current (50µA ICCZ).
Technical Context
The 74ABT2241D,112 implements a high-performance BiCMOS architecture delivering low dynamic power and high output drive while maintaining TTL-compatible logic thresholds. Its dual 3-state enable structure allows independent control of two 4-bit output groups (1Y0–1Y3 and 2Y0–2Y3), supporting flexible bus partitioning.
Each output integrates matched 30Ω series resistors in both high and low states-eliminating external termination components and reducing ringing on transmission lines. This design directly targets signal integrity in 5V parallel buses operating up to 100 MHz, with propagation delay tightly specified (1.0–5.3ns) across temperature and voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5V to 5.5V - ensures compatibility with standard 5V TTL/CMOS systems and margin against rail droop. |
| Propagation Delay | 2.9ns typical (tPLH/tPHL, CL=50pF) - enables reliable operation in high-speed address/data bus timing budgets. |
| Output Drive | –32mA sink / +12mA source - supports heavy capacitive loads and fan-out to multiple inputs without external buffers. |
| Series Termination | 30Ω integrated per output - eliminates need for discrete series resistors, reduces PCB component count and layout complexity. |
| Input Capacitance | 3pF - minimizes loading on upstream drivers and preserves signal edge rates in dense bus environments. |
| Quiescent Current | 50µA (ICCZ, outputs disabled) - enables low-power standby in systems requiring extended 3-state hold periods. |
Pinout & Package
74ABT2241D,112 is supplied in a 20-pin plastic SO (Small Outline) package per SOT163-1, with 7.5 mm body width and standard 1.27 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 19 | 1OE, 2OE | Active-low enables controlling Y-group 1 (pins 18,16,14,12) and Y-group 2 (pins 3,5,7,9) independently. |
| 2,4,6,8 | 1A0–1A3 | Data inputs for first 4-bit output group; routed to 1Y0–1Y3 when 1OE = L. |
| 17,15,13,11 | 2A0–2A3 | Data inputs for second 4-bit output group; routed to 2Y0–2Y3 when 2OE = L. |
| 18,16,14,12 | 1Y0–1Y3 | 3-state outputs with integrated 30Ω series termination; driven by 1A0–1A3 when enabled. |
| 3,5,7,9 | 2Y0–2Y3 | 3-state outputs with integrated 30Ω series termination; driven by 2A0–2A3 when enabled. |
| 10 | GND | Ground reference for all I/O and internal circuitry; must be low-impedance connection. |
| 20 | VCC | +5V supply input; decoupling capacitor required near pin for stable high-speed switching. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 3-state enables | Allows selective activation of two 4-bit output banks-enabling partial bus driving and reducing simultaneous switching noise. |
| Integrated 30Ω series termination | Eliminates external resistors on each output line, simplifying layout and improving impedance matching on 50Ω traces. |
| Power-up 3-state behavior | Outputs remain in high-impedance state during VCC ramp-up-preventing bus contention at power-on. |
| Latch-up immunity >500mA | Meets JEDEC Std 17-ensures robustness against transient overvoltage events in industrial environments. |
Applications
| Memory Address Drivers | System Clock Distribution |
|---|---|
Use Scenario: Driving 16-bit address bus from microcontroller to SRAM or EPROM in embedded control systems. IC Role / Device Role / Timing Role: Octal buffer providing terminated, low-skew address signals with dual-enable isolation between upper/lower byte lanes. Use Value: Integrated 30Ω resistors suppress reflections on long PCB traces, ensuring clean setup/hold margins at 25MHz+ clock rates. | Use Scenario: Distributing a single system clock to multiple synchronous peripherals (e.g., UARTs, timers, ADCs). IC Role / Device Role / Timing Role: Fan-out buffer with controlled edge rates and matched delays across all eight outputs. Use Value: Dual OE pins allow dynamic clock gating per peripheral group; 2.9ns max skew maintains synchronous timing integrity. |
| Parallel Bus Transceivers | Legacy Peripheral Interface |
Use Scenario: Bidirectional data path buffering between CPU and ISA-style expansion cards with shared data bus. IC Role / Device Role / Timing Role: Unidirectional buffer stage (used in pairs) with 3-state control synchronized to bus arbitration signals. Use Value: ±32mA drive sustains signal integrity across 10+ inch backplane traces; 30Ω termination prevents overshoot on 5V TTL-level transitions. | Use Scenario: Interfacing modern microcontrollers to legacy parallel devices such as dot-matrix printers or industrial PLC modules. IC Role / Device Role / Timing Role: Level-shifting and drive-strengthening buffer for 5V-tolerant GPIOs connecting to non-3.3V-compatible peripherals. Use Value: TTL-compatible VIH/VIL thresholds (2.0V/0.8V) ensure reliable logic recognition; latch-up protection guards against noisy industrial ground returns. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal 3-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ABT2241DBR | TI version in TSSOP-20 (SOT360-1); identical AC/DC specs but different thermal resistance and moisture sensitivity level. | Same functional replacement; requires requalification for humidity-sensitive assembly processes. | Select when sourcing flexibility across NXP/TI supply chains is needed; verify MSL rating for reflow profile compatibility. |
| 74LVT2241PW | NXP LVT variant in TSSOP-20; lower 3.3V supply operation (2.7–3.6V), reduced drive (–24mA/+24mA), no integrated termination. | Not suitable for 5V bus termination use cases; requires external 33Ω resistors for equivalent noise suppression. | Choose only for 3.3V-only systems where lower power and voltage compatibility outweigh termination benefits. |
Compared with SN74ABT2241DBR and 74LVT2241PW, the 74ABT2241D,112 uniquely delivers 5V operation with factory-integrated 30Ω termination-reducing BOM cost and layout risk in legacy and mixed-voltage industrial designs where signal integrity on unterminated traces is critical.
Availability
74ABT2241D,112 is available at Aetrix Electronics and suitable for memory address drivers, clock distribution networks, and parallel bus transceivers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74ABT2241D,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 74ABT series was developed by Philips (now NXP) to deliver high-speed, low-noise 5V logic with BiCMOS process advantages-targeting demanding bus interface roles in telecom infrastructure, industrial controllers, and legacy computing systems.
FAQ
What is the function of the dual output enables (1OE and 2OE) on the 74ABT2241D,112?
The 74ABT2241D,112 uses two independent active-low output enables: 1OE controls outputs 1Y0–1Y3, and 2OE controls outputs 2Y0–2Y3. This allows selective activation of two 4-bit groups-enabling partial bus driving, reducing simultaneous switching noise, and supporting flexible timing control in multi-peripheral systems. Both enables must be low for their respective outputs to drive; otherwise, outputs enter high-impedance state.
Does the 74ABT2241D,112 require external series termination resistors?
No, the 74ABT2241D,112 does not require external series termination resistors. Each output (1Y0–1Y3 and 2Y0–2Y3) integrates a precise 30Ω resistor in both high and low states-designed to match typical PCB trace impedances and suppress ringing on 5V parallel buses. This eliminates four to eight discrete resistors per device, reducing BOM cost and layout complexity.
What is the maximum operating temperature range for the 74ABT2241D,112?
The 74ABT2241D,112 is rated for continuous operation from –40°C to +85°C, as confirmed in the Philips product specification. This extended industrial temperature range makes it suitable for deployment in harsh environments such as factory automation controllers, outdoor telecom equipment, and transportation electronics where ambient thermal cycling is expected.
Can the 74ABT2241D,112 be used with a 3.3V supply voltage?
No, the 74ABT2241D,112 is not specified for 3.3V operation. Its recommended supply range is strictly 4.5V to 5.5V, and DC electrical characteristics-including VOH, VOL, and VIH/VIL thresholds-are guaranteed only within that window. For 3.3V systems, consider the pin-compatible 74LVT2241PW, which operates at 2.7–3.6V but lacks integrated termination.
Is the 74ABT2241D,112 pin-compatible with other packages of the same part number?
Yes, the 74ABT2241D,112 shares identical pinout and functionality with other package variants including 74ABT2241N (DIP20), 74ABT2241DB (SSOP20), and 74ABT2241PW (TSSOP20). All adhere to the SOT146-1/SOT163-1/SOT339-1/SOT360-1 mechanical outlines and maintain consistent pin numbering and signal mapping per the official Philips datasheet.
74ABT2241D,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74ABT
- Package/Case:
- 20-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Logic Type:
- Buffer, Non-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
74ABT2241D,112 FAQ
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6.How does Aetrix verify that 74ABT2241D,112 is sourced from the original manufacturer or authorized distributors?
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7.What is the process for return or replacement of 74ABT2241D,112?
All 74ABT2241D,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74ABT2241D,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 74ABT2241D,112 part is unused and in its original packaging.
Return procedure for 74ABT2241D,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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