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NXP Semiconductors 74ABT2241DB,112
- Part No.:
- 74ABT2241DB,112
- Manufacturer:
- NXP Semiconductors
- Package:
- 20-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
74ABT2241DB,112.pdf
- Description:
- IC BUFF NON-INVERT 5.5V 20SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,385
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Product details
Overview
74ABT2241DB,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 output drive capability, and operates over –40°C to +85°C at 4.5–5.5V supply.
For engineers reviewing the 74ABT2241DB,112 datasheet, 74ABT2241DB,112 pinout, 74ABT2241DB,112 application, or 74ABT2241DB,112 equivalent, key selection criteria include its on-die 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 74ABT2241DB,112 implements a high-performance BiCMOS architecture delivering low dynamic power and fast propagation (2.9ns typical at 5V, CL=50pF) while maintaining TTL-compatible input thresholds (VIL ≤ 0.8V, VIH ≥ 2.0V). Its dual 3-state enable structure allows independent control of two 4-bit output groups (1Y0–1Y3 and 2Y0–2Y3).
Each output integrates matched 30Ω series resistors in both high and low states-eliminating external termination components and reducing ringing in high-frequency bus lines. This design directly targets signal integrity in memory address drivers and clock distribution networks where controlled impedance and reduced EMI are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5–5.5 V - Ensures compatibility with standard 5V TTL/CMOS systems and margin against rail droop. |
| Propagation Delay (tPLH/tPHL) | 2.9 ns typical (CL = 50 pF, VCC = 5 V) - Enables reliable operation in sub-5ns timing-critical bus interfaces. |
| Output Drive | +12 mA / –32 mA - Supports heavy capacitive loads and fan-out to multiple TTL inputs without external buffers. |
| Input Capacitance | 3 pF - Minimizes loading on upstream drivers and preserves signal edge rates. |
| 3-State Leakage (IOZL/IOZH) | ±50 µA max - Guarantees low off-state current during bus arbitration and power-sensitive standby modes. |
| Series Termination | 30 Ω integrated per output - Eliminates need for discrete series resistors, saving PCB area and improving impedance matching. |
| Operating Temperature | –40°C to +85°C - Qualified for industrial-grade embedded and computing environments. |
Pinout & Package
74ABT2241DB,112 is supplied in a 20-pin plastic SSOP Type II package (SOT339-1), 5.3 mm body width, with standard 0.65 mm lead pitch and gull-wing leads suitable for surface-mount reflow assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 19 | 1OE, 2OE | Active-low output enables - Independently disable Group 1 (pins 12,14,16,18) or Group 2 (pins 3,5,7,9) outputs to manage bus contention. |
| 2,4,6,8 | 1A0–1A3 | Data inputs for Group 1 outputs - Directly drive corresponding 1Yn outputs when 1OE = L. |
| 17,15,13,11 | 2A0–2A3 | Data inputs for Group 2 outputs - Independent input set for second 4-bit channel under 2OE control. |
| 12,14,16,18 | 1Y0–1Y3 | Group 1 buffered outputs with 30Ω series termination - Deliver low-noise signals to memory address or control buses. |
| 3,5,7,9 | 2Y0–2Y3 | Group 2 buffered outputs with 30Ω series termination - Enable dual-bus or split-function routing without external components. |
| 10 | GND | Ground reference - Shared return path for all I/O and supply currents; requires low-impedance PCB plane connection. |
| 20 | VCC | +5V supply - Powers internal BiCMOS logic and output stages; decoupling capacitor (0.1 µF) required near pin. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 30Ω series termination | Reduces PCB component count and layout complexity while suppressing transmission-line reflections on high-speed buses. |
| Dual independent 3-state enables | Enables selective isolation of two 4-bit data paths-critical for multi-master bus arbitration and memory bank switching. |
| Power-up 3-state behavior | Outputs remain in high-impedance state during power ramp-up, preventing bus contention at system startup. |
| Latch-up immunity >500 mA | Meets JEDEC Std 17 - ensures robustness against transient overcurrent events in noisy industrial environments. |
| ESD protection >2 kV (HBM) | Provides handling safety during assembly and field service without requiring special ESD precautions beyond standard practices. |
Applications
| Memory Address Buffering | System Clock Distribution |
|---|---|
Use Scenario: Driving address lines from a microcontroller or ASIC to multiple SRAM or Flash devices on a shared bus. IC Role / Device Role / Timing Role: Octal buffer with matched 30Ω series termination ensures clean, low-ringing address transitions across parallel traces. Use Value: Eliminates need for eight discrete 30Ω resistors, reduces trace mismatch, and maintains setup/hold timing margins under load. |
Use Scenario: Distributing a single system clock to multiple synchronous peripherals (e.g., UARTs, timers, ADCs) with minimal skew and overshoot. IC Role / Device Role / Timing Role: Low-propagation-delay buffer with controlled output impedance acts as a fanout buffer with inherent signal integrity optimization. Use Value: Prevents clock edge degradation and jitter accumulation across branches, supporting stable timing at up to 300+ MHz effective edge rates. |
| Bus Transceiver Interface | Legacy Peripheral Control |
Use Scenario: Bidirectional data bus isolation between a CPU and legacy ISA-style peripheral cards using separate direction-controlled enable groups. IC Role / Device Role / Timing Role: Dual-OE octal buffer provides directional control (1OE for CPU→peripheral, 2OE for peripheral→CPU) with simultaneous termination. Use Value: Enables clean bidirectional signaling without external direction logic or termination networks, simplifying interface design. |
Use Scenario: Controlling discrete enable, select, or strobe signals for legacy parallel port peripherals (e.g., printers, modems, industrial I/O modules). IC Role / Device Role / Timing Role: High-drive 3-state buffer delivers robust TTL-level control signals with fast edge rates and noise immunity. Use Value: Sustains reliable operation across long cables or noisy factory floors due to ±32mA drive and latch-up immunity. |
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 same SSOP-20 package; identical 30Ω termination and dual-OE function; AC specs match within 0.2ns propagation variance. | No functional deviation - supports drop-in replacement where TI sourcing is preferred or qualified. | Select SN74ABT2241DBR if TI's qualification documentation or long-term availability program better aligns with your production roadmap. |
| 74LVT2241DB,118 | Lower voltage operation (2.7–3.6V), no integrated series termination, 3.3V-tolerant I/O; 3.5ns typical tPLH - lacks noise-suppression feature. | Requires external 30Ω resistors for equivalent signal integrity; unsuitable for 5V-only systems without level shifting. | Choose 74LVT2241DB,118 only for mixed-voltage 3.3V/5V designs where lower power consumption outweighs added BOM cost and layout complexity. |
Compared with SN74ABT2241DBR, the 74ABT2241DB,112 offers identical electrical and mechanical compatibility but differs in manufacturer-specific qualification testing and lifecycle support. Versus 74LVT2241DB,118, the 74ABT2241DB,112 provides built-in termination and 5V operation - eliminating design compromises in legacy industrial bus systems.
Availability
74ABT2241DB,112 is available at Aetrix Electronics and suitable for memory subsystems, clock distribution networks, and industrial bus interfaces requiring stable component supply, long-term obsolescence management, and guaranteed traceable sourcing.
Supply support for 74ABT2241DB,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, with roots in Philips' pioneering IC development.
The 74ABT2241DB,112 belongs to NXP's ABT (Advanced BiCMOS Technology) logic family - engineered for high-speed, low-noise 5V digital interfacing in mission-critical industrial and computing infrastructure.
FAQ
What is the function of the dual output enables (1OE and 2OE) on the 74ABT2241DB,112?
The 74ABT2241DB,112 uses 1OE and 2OE to independently control two groups of four outputs: 1OE enables 1Y0–1Y3, while 2OE enables 2Y0–2Y3. This allows selective bus isolation-for example, holding one memory bank active while disabling another-without requiring additional logic. Each enable is active-low and features power-up 3-state behavior to prevent contention during power-on sequencing.
Does the 74ABT2241DB,112 require external series termination resistors?
No. The 74ABT2241DB,112 integrates precise 30Ω series resistors in both high and low output states-confirmed in the "DESCRIPTION" and "QUICK REFERENCE DATA" sections of the Philips datasheet. This eliminates the need for eight discrete resistors, reduces PCB footprint, and ensures consistent impedance matching across all eight outputs of the 74ABT2241DB,112.
What is the maximum operating temperature range for the 74ABT2241DB,112?
The 74ABT2241DB,112 is rated for continuous operation from –40°C to +85°C, as specified in the "ORDERING INFORMATION" and "RECOMMENDED OPERATING CONDITIONS" tables. This industrial temperature range is validated across all package variants-including the SSOP-20 (SOT339-1) used for the 74ABT2241DB,112-and supports deployment in harsh environments like factory automation and telecom infrastructure.
Can the 74ABT2241DB,112 be used in 3.3V systems?
No. The 74ABT2241DB,112 is a 5V-only device with recommended VCC of 4.5–5.5V and absolute maximum rating of +7.0V. Its input thresholds (VIH ≥ 2.0V, VIL ≤ 0.8V) and output drive characteristics are optimized for TTL/5V CMOS compatibility. Using it with 3.3V supplies risks undefined logic states and insufficient noise margins-use the 74LVT2241DB,118 instead for 3.3V applications.
How does the 30Ω series termination in the 74ABT2241DB,112 improve signal integrity?
The integrated 30Ω series termination in the 74ABT2241DB,112 matches typical PCB trace impedances (40–70Ω) when combined with load capacitance, damping reflections that cause ringing and overshoot. As stated in the datasheet description, this reduces line noise specifically in memory address drivers, clock drivers, and bus receivers-directly improving timing margin and EMI performance without external components.
74ABT2241DB,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74ABT
- Package/Case:
- 20-SSOP (0.209", 5.30mm 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-SSOP
74ABT2241DB,112 FAQ
1.How can I place an order for 74ABT2241DB,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ABT2241DB,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 74ABT2241DB,112 reliable?
The price and inventory of 74ABT2241DB,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ABT2241DB,112 is usually 5 days.
3.What payment methods are accepted for 74ABT2241DB,112?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ABT2241DB,112 transactions.
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4.How is shipping managed for 74ABT2241DB,112?
74ABT2241DB,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ABT2241DB,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 74ABT2241DB,112?
For technical support, including 74ABT2241DB,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ABT2241DB,112 requirements.
6.How does Aetrix verify that 74ABT2241DB,112 is sourced from the original manufacturer or authorized distributors?
All 74ABT2241DB,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 74ABT2241DB,112 meets industry standards.
7.What is the process for return or replacement of 74ABT2241DB,112?
All 74ABT2241DB,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74ABT2241DB,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 74ABT2241DB,112 part is unused and in its original packaging.
Return procedure for 74ABT2241DB,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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