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NXP Semiconductors 74ABT2244D,118
- Part No.:
- 74ABT2244D,118
- Manufacturer:
- NXP Semiconductors
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
74ABT2244D,118.pdf
- Description:
- IC BUFF NON-INVERT 5.5V 20SO
- Quantity:
- Payment:
- Shipping:
Inventory:4,997
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Product details
Overview
74ABT2244D,118 from NXP Semiconductors (formerly Philips) is an octal 3-State buffer/line driver with integrated 30Ω series output termination resistors, designed for high-speed bus driving in memory address, clock, and data bus applications. It features dual independent output enables (1OE, 2OE), ±32mA sink/source capability, and operates over –40°C to +85°C at 4.5–5.5V supply.
For engineers reviewing the 74ABT2244D,118 datasheet, 74ABT2244D,118 pinout, 74ABT2244D,118 application, or 74ABT2244D,118 equivalent, key selection criteria include integrated 30Ω series termination, dual OE control per 4-bit group, propagation delay ≤5.6ns, and compatibility with ABT-family logic levels and timing.
Technical Context
The 74ABT2244D,118 implements a BiCMOS architecture delivering low static/dynamic power with high-speed performance. Its outputs integrate matched 30Ω series resistors in both high and low states-eliminating external termination components and reducing line noise in parallel bus systems.
It provides two independent 3-State control paths: 1OE governs outputs 1Y0–1Y3, and 2OE governs 2Y0–2Y3. Inputs are disabled during 3-State mode, and power-up 3-State ensures defined output behavior at VCC ramp.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5V to 5.5V - Ensures robust operation across industrial-grade 5V rail tolerances. |
| Propagation Delay (tPLH/tPHL) | Max 5.6ns at VCC = 5.0V, CL = 50pF - Supports >150MHz bus timing margins. |
| Output Drive Strength | –32mA sink / +5mA source - Drives heavy capacitive loads and multiple TTL inputs without external buffers. |
| Integrated Termination | 30Ω series resistance per output - Eliminates need for discrete 33Ω resistors on PCB, reducing BOM count and layout area. |
| Input Capacitance | 4pF - Minimizes loading on upstream drivers and preserves signal integrity in fan-out-critical paths. |
| 3-State Leakage (IOZL/IOZH) | ±50µA max - Guarantees low off-state current, critical for bus contention avoidance and power-sensitive designs. |
Pinout & Package
74ABT2244D,118 is supplied in a 20-pin plastic SO package (SOT163-1), 7.5 mm body width, surface-mount compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 19 | 1OE, 2OE | Active-low output enable controls for first and second 4-bit output groups respectively; enables 3-State when high. |
| 2, 4, 6, 8 | 1A0–1A3 | Data inputs for first 4-bit channel; routed to outputs 1Y0–1Y3 when 1OE is low. |
| 11, 13, 15, 17 | 2A0–2A3 | Data inputs for second 4-bit channel; routed to outputs 2Y0–2Y3 when 2OE is low. |
| 12, 14, 16, 18 | 1Y0–1Y3 | 3-State buffered outputs with integrated 30Ω series termination; drive bidirectional bus segments. |
| 3, 5, 7, 9 | 2Y0–2Y3 | 3-State buffered outputs with integrated 30Ω series termination; independently controlled by 2OE. |
| 10 | GND | Ground reference for all I/O and internal circuitry; must be low-impedance connection. |
| 20 | VCC | Positive supply input (4.5–5.5V); decoupling capacitor required near pin for noise suppression. |
Key Features
| Feature | Design Value |
|---|---|
| Octal 3-State buffering with dual OE | Enables independent control of two 4-bit data lanes-ideal for split-bus architectures and partial bus isolation. |
| Integrated 30Ω series termination | Reduces reflection-induced ringing on transmission lines up to ~10 cm at 100 MHz, eliminating 8 external resistors. |
| Live insertion/extraction support | Prevents bus disturbance during hot-swap operations in backplane or modular systems with powered slots. |
| Latch-up immunity >500mA | Meets JEDEC Std 17 - ensures robustness against transient ground bounce or supply coupling events. |
| Power-up 3-State behavior | Outputs remain in high-impedance until VCC stabilizes, preventing bus conflicts during system power sequencing. |
Applications
| Memory Address Bus Driver | PCI Local Bus Transmitter |
|---|---|
Use Scenario: Driving 32-bit address lines from a microcontroller to SRAM or Flash memory with trace lengths up to 8 cm. IC Role / Device Role / Timing Role: Octal buffer providing level translation, fan-out expansion, and impedance-matched transmission. Use Value: Integrated 30Ω termination suppresses overshoot/undershoot on address strobes, enabling reliable 25 MHz access timing without added components. |
Use Scenario: Transmitting multiplexed AD[31:0] signals from a PCI controller to a peripheral card edge connector. IC Role / Device Role / Timing Role: High-drive 3-State line driver with dual OE for directional control of shared data/address bus. Use Value: ±32mA drive strength meets PCI spec load requirements; dual OE allows precise timing alignment between address and data phases. |
| Backplane Clock Distribution | Industrial Control Bus Interface |
Use Scenario: Distributing a 40 MHz system clock to four downstream FPGA clock inputs across a 12 cm backplane trace. IC Role / Device Role / Timing Role: Low-skew, terminated clock buffer minimizing jitter accumulation and edge degradation. Use Value: Matched 30Ω series resistance reduces clock edge distortion, maintaining <150 ps rise/fall monotonicity at destination. |
Use Scenario: Interfacing a PLC CPU module to a distributed I/O rack via a 2-meter shielded ribbon cable carrying 16-bit status/control data. IC Role / Device Role / Timing Role: Robust bus interface IC with ESD-hardened I/O (2000V HBM) and latch-up protection. Use Value: 2000V HBM ESD rating and >500mA latch-up immunity ensure reliability in electrically noisy factory environments. |
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 |
|---|---|---|---|
| SN74ABT2244DBR | TI part in SSOP-20 (SOT339-1); identical AC/DC specs but different thermal resistance and moisture sensitivity level (MSL3 vs MSL1). | SSOP package requires tighter pitch layout; suitable where board space is constrained but reflow profile supports MSL3 handling. | Select SN74ABT2244DBR only if SSOP footprint is already standardized in design and humidity-controlled assembly is available. |
| 74LVT2244PW,118 | NXP LVT variant: lower VCC range (2.7–3.6V), 3.3V-compatible, no integrated 30Ω termination; higher speed (tPD ≤ 3.4ns) but requires external termination. | Designed for 3.3V systems only; unsuitable for 5V buses unless level-shifted; adds 8 resistors and layout complexity. | Choose 74LVT2244PW,118 only for new 3.3V-only designs where maximum speed outweighs BOM and layout cost. |
Compared with SN74ABT2244DBR and 74LVT2244PW,118, the 74ABT2244D,118 uniquely combines 5V operation, integrated 30Ω termination, and SO package manufacturability-making it optimal for cost-sensitive, noise-critical 5V industrial bus interfaces requiring zero-external-component implementation.
Availability
74ABT2244D,118 is available at Aetrix Electronics and suitable for memory address drivers, PCI bus transmitters, backplane clock distribution, and industrial control bus interfaces requiring stable component supply and long-term industrial temperature support.
Supply support for 74ABT2244D,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 analog IC development.
The 74ABT2244D,118 belongs to NXP's ABT-series advanced BiCMOS logic family, engineered for high-speed, low-noise 5V bus interfacing in industrial and computing infrastructure where signal integrity and component count reduction are critical.
FAQ
What is the function of the 30Ω series termination in the 74ABT2244D,118?
The 30Ω series termination in each output of the 74ABT2244D,118 matches typical PCB trace impedances (≈60–70Ω differential / ≈30–35Ω single-ended) to suppress reflections and ringing. This eliminates the need for eight external 33Ω resistors, simplifying layout and improving signal fidelity on memory address and clock lines up to 10 cm in length.
Does the 74ABT2244D,118 support live insertion into a powered system?
Yes, the 74ABT2244D,118 supports live insertion and extraction per its datasheet specification. Its inputs are disabled during 3-State mode, and the device includes robust ESD protection (2000V HBM) and latch-up immunity (>500mA), making it safe for use in hot-pluggable backplane or modular industrial systems.
How does the dual Output Enable (1OE/2OE) architecture benefit system design?
The dual OE structure in the 74ABT2244D,118 allows independent control of two 4-bit output groups (1Y0–1Y3 and 2Y0–2Y3). This enables selective bus segmentation-for example, isolating address and data lanes or managing separate memory banks-without requiring additional logic or timing overhead.
What is the maximum operating temperature range for the 74ABT2244D,118?
The 74ABT2244D,118 is rated for continuous operation from –40°C to +85°C, meeting industrial temperature requirements. This range is validated across all electrical parameters in the datasheet, including propagation delay, drive strength, and leakage current, ensuring reliability in harsh environments.
Is the 74ABT2244D,118 pin-compatible with the 74ABT244-1?
Yes-the 74ABT2244D,118 is functionally and pin-compatible with the 74ABT244-1, as explicitly stated in the Philips datasheet: "The 74ABT2244 is the same as the 74ABT244-1. The part number has been changed to reflect industry standards." Both share identical pinout, logic function, and electrical specifications.
74ABT2244D,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, 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
74ABT2244D,118 FAQ
1.How can I place an order for 74ABT2244D,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ABT2244D,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 74ABT2244D,118 reliable?
The price and inventory of 74ABT2244D,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ABT2244D,118 is usually 5 days.
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Once your 74ABT2244D,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 74ABT2244D,118?
For technical support, including 74ABT2244D,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ABT2244D,118 requirements.
6.How does Aetrix verify that 74ABT2244D,118 is sourced from the original manufacturer or authorized distributors?
All 74ABT2244D,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 74ABT2244D,118 meets industry standards.
7.What is the process for return or replacement of 74ABT2244D,118?
All 74ABT2244D,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74ABT2244D,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 74ABT2244D,118 part is unused and in its original packaging.
Return procedure for 74ABT2244D,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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