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NXP Semiconductors 74ABT2240PW,118
- Part No.:
- 74ABT2240PW,118
- Manufacturer:
- NXP Semiconductors
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74ABT2240PW,118.pdf
- Description:
- IC BUFFER INVERT 5.5V 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,152
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Product details
Overview
74ABT2240PW,118 from NXP Semiconductors (formerly Philips) is an octal inverting 3-state buffer with integrated 30 Ω series output termination, 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, 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,118 datasheet, 74ABT2240PW,118 pinout, 74ABT2240PW,118 application, or 74ABT2240PW,118 equivalent, this page delivers verified functional identity, TSSOP20 package mapping, propagation delay (2.8 ns typ), output termination value, and direct alternatives - all confirmed from the official 2005 product data sheet.
Technical Context
The 74ABT2240PW,118 implements two independent 4-bit inverting buffer groups, each controlled by a dedicated 3-state enable input (1OE for outputs Y0–Y3; 2OE for Y0–Y3 of second group). Its BiCMOS architecture enables low static current (50 µA typ) while sustaining 4.3 ns max tPHL at 5 V.
All eight outputs integrate matched 30 Ω series resistors in both HIGH and LOW states, eliminating need for external termination in point-to-point or short-bus applications. Power-up 3-state behavior prevents bus contention during power sequencing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Octal inverting buffer with dual 3-state control (1OE/2OE) |
| Supply Voltage | 4.5 V to 5.5 V - ensures compatibility with standard 5 V TTL and ABT logic families |
| Propagation Delay | 2.8 ns (tPLH typ), 4.3 ns (tPHL typ) at CL = 50 pF - supports >200 MHz bus operation |
| Output Drive | −32 mA (IOH), +12 mA (IOL) - sufficient for driving multiple TTL loads or unterminated transmission lines |
| Series Termination | 30 Ω per output in both states - reduces ringing and EMI without external resistors |
| Input Capacitance | 3 pF - minimizes loading on upstream drivers and preserves signal edge rate |
| Operating Temperature | −40 °C to +85 °C - qualified for industrial and extended commercial environments |
Pinout & Package
TSSOP20 package (SOT360-1): 20-pin plastic thin shrink small outline, 4.4 mm body width, 0.65 mm lead pitch, surface-mount compatible.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OE | Enable input for first group of four outputs (1Y0–1Y3); active LOW |
| 2 | 1A0 | Inverting data input for output 1Y0 |
| 3 | 2Y0 | Inverting data output driven by 2A0 when 2OE is active LOW |
| 4 | 1A1 | Inverting data input for output 1Y1 |
| 5 | 2Y1 | Inverting data output driven by 2A1 when 2OE is active LOW |
| 6 | 1A2 | Inverting data input for output 1Y2 |
| 7 | 2Y2 | Inverting data output driven by 2A2 when 2OE is active LOW |
| 8 | 1A3 | Inverting data input for output 1Y3 |
| 9 | 2Y3 | Inverting data output driven by 2A3 when 2OE is active LOW |
| 10 | GND | Ground reference (0 V) for all internal circuitry and I/O |
| 11 | 2A3 | Inverting data input for output 2Y3 |
| 12 | 1Y3 | Inverting data output driven by 1A3 when 1OE is active LOW |
| 13 | 2A2 | Inverting data input for output 2Y2 |
| 14 | 1Y2 | Inverting data output driven by 1A2 when 1OE is active LOW |
| 15 | 2A1 | Inverting data input for output 2Y1 |
| 16 | 1Y1 | Inverting data output driven by 1A1 when 1OE is active LOW |
| 17 | 2A0 | Inverting data input for output 2Y0 |
| 18 | 1Y0 | Inverting data output driven by 1A0 when 1OE is active LOW |
| 19 | 2OE | Enable input for second group of four outputs (2Y0–2Y3); active LOW |
| 20 | VCC | +5 V supply input - powers internal BiCMOS circuitry and output stages |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 30 Ω series output termination | Eliminates external resistors and PCB layout complexity for noise-sensitive bus interfaces |
| Dual independent 3-state control (1OE/2OE) | Enables selective isolation of two 4-bit data paths without shared enable timing constraints |
| Power-up 3-state | Guarantees high-impedance outputs at power-on, preventing bus contention during system initialization |
| Live insertion/extraction support | Allows hot-swap capability in backplane or modular systems without damaging the device or bus |
| Latch-up immunity (JESD78 >500 mA) | Ensures robustness against transient overvoltage events in noisy industrial environments |
Applications
| Memory Address Buffering | System Clock Distribution |
|---|---|
Use Scenario: Driving address lines from a microcontroller to multiple SRAM or ROM chips on a shared bus. IC Role / Device Role: Octal inverting buffer with 30 Ω series termination isolates MCU outputs and suppresses reflections on parallel address traces. Use Value: Prevents address decoding errors caused by ringing or overshoot, enabling reliable 5 V bus operation up to 200 MHz. |
Use Scenario: Distributing a single system clock signal to multiple synchronous peripherals (e.g., ADCs, DACs, FPGAs). IC Role / Device Role: Inverting buffer with matched output impedance maintains signal integrity across fanout branches. Use Value: Reduces skew and jitter accumulation by minimizing reflections at stub junctions in multi-drop clock trees. |
| Bus Transceiver Interface | Legacy Peripheral Expansion |
Use Scenario: Bidirectional data transfer between a CPU and legacy ISA-style peripheral cards using shared data bus lines. IC Role / Device Role: Dual 3-state control allows direction-selective buffering: one group drives outbound data, the other receives inbound responses. Use Value: Enables clean bus turnaround with no dead time, supporting full-duplex-like timing in half-duplex parallel buses. |
Use Scenario: Interfacing modern microcontrollers to older parallel-port peripherals (e.g., dot-matrix printers, industrial PLC modules). IC Role / Device Role: Level-shifting and drive-strengthening buffer that meets TTL input thresholds while sourcing/sinking required current. Use Value: Eliminates need for discrete resistor networks or additional line drivers, reducing BOM count and board area. |
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,118 | Identical electrical specs and pinout; same die, rebranded per industry naming convention | No functional difference - direct drop-in replacement per Philips documentation | Select when sourcing flexibility or alternate part numbering is preferred in procurement systems |
| SN74ABT2240DBR | TI version: identical 30 Ω termination, same 20-pin TSSOP package, but slightly higher ICC (max 250 µA vs 50 µA typ) | Valid for same bus-driving roles; minor quiescent current increase has negligible impact in most applications | Choose when TI supply chain alignment or dual-sourcing strategy is prioritized |
Compared with 74ABT2240PW,118, the 74ABT240PW,118 offers identical performance and footprint with no design change required, while the SN74ABT2240DBR provides second-source assurance with marginally higher standby current but identical timing and drive strength.
Availability
74ABT2240PW,118 is available at Aetrix Electronics and suitable for memory subsystems, clock distribution networks, and industrial bus interface designs requiring stable component supply and long-term industrial temperature support.
Supply support for 74ABT2240PW,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, formerly Philips Semiconductors, is a global leader in high-performance logic, interface, and automotive ICs, with deep heritage in TTL-compatible ABT family development.
The 74ABT2240PW,118 belongs to the ABT (Advanced BiCMOS Technology) logic family, engineered specifically for high-speed, low-noise bus interfacing in 5 V systems where signal integrity and drive strength are critical.
FAQ
What is the function of the 74ABT2240PW,118?
The 74ABT2240PW,118 is an octal inverting 3-state buffer with dual output-enable inputs (1OE and 2OE) and integrated 30 Ω series output termination. It conditions and drives 5 V TTL-level signals on shared buses, providing noise suppression and high drive capability without external components. Its function is explicitly defined in the Philips 2005 datasheet as "octal inverting buffer with 30 Ω series termination resistors; 3-state".
Does the 74ABT2240PW,118 require external termination resistors?
No, the 74ABT2240PW,118 does not require external termination resistors because it integrates 30 Ω series resistance in both HIGH and LOW output states. This design directly reduces line noise in memory address drivers, clock drivers, and bus receivers/transmitters - a key feature confirmed in the General Description section of the official datasheet.
What is the operating temperature range for the 74ABT2240PW,118?
The 74ABT2240PW,118 is rated for operation from −40 °C to +85 °C, as specified in Table 2 (Ordering Information) of the Philips product data sheet. This industrial-grade temperature range makes it suitable for use in embedded controllers, industrial automation hardware, and telecom infrastructure equipment.
Is the 74ABT2240PW,118 pin-compatible with the 74ABT240PW,118?
Yes, the 74ABT2240PW,118 is functionally and physically identical to the 74ABT240PW,118. The datasheet states: "The 74ABT2240 is the same as the 74ABT240. The part number has been changed to reflect industry standards." Both share identical pinout, electrical specs, and TSSOP20 packaging.
What are the absolute maximum ratings for VCC and VI on the 74ABT2240PW,118?
The absolute maximum rating for VCC is +7.0 V, and for VI (input voltage) it is +7.0 V with a lower limit of −1.2 V, per Table 5 (Limiting Values) in the Philips datasheet. Exceeding these values may cause permanent damage, and operation outside recommended conditions (4.5 V–5.5 V for VCC, 0–VCC for VI) is not guaranteed.
74ABT2240PW,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74ABT
- Package/Case:
- 20-TSSOP (0.173", 4.40mm 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-TSSOP
74ABT2240PW,118 FAQ
1.How can I place an order for 74ABT2240PW,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ABT2240PW,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 74ABT2240PW,118 reliable?
The price and inventory of 74ABT2240PW,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ABT2240PW,118 is usually 5 days.
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Once your 74ABT2240PW,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 74ABT2240PW,118?
For technical support, including 74ABT2240PW,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ABT2240PW,118 requirements.
6.How does Aetrix verify that 74ABT2240PW,118 is sourced from the original manufacturer or authorized distributors?
All 74ABT2240PW,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 74ABT2240PW,118 meets industry standards.
7.What is the process for return or replacement of 74ABT2240PW,118?
All 74ABT2240PW,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74ABT2240PW,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 74ABT2240PW,118 part is unused and in its original packaging.
Return procedure for 74ABT2240PW,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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