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NXP Semiconductors 74ABT240PW,118
- Part No.:
- 74ABT240PW,118
- Manufacturer:
- NXP Semiconductors
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74ABT240PW,118.pdf
- Description:
- IC BUFFER INVERT 5.5V 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,146
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Product details
Overview
74ABT240PW,118 from NXP Semiconductors (formerly Philips Semiconductors) is an octal inverting 3-state buffer IC designed for high-speed bus interface applications. It features dual output enables (1OE, 2OE), ±32mA/±64mA drive capability, 3.1ns typical propagation delay at 5V/50pF, and operates across –40°C to +85°C.
For engineers reviewing the 74ABT240PW,118 datasheet, 74ABT240PW,118 pinout, 74ABT240PW,118 application, or 74ABT240PW,118 equivalent, key selection criteria include bus-driving strength, 3-state timing (tPZH/tPHZ), power-up 3-state behavior, live insertion support, and TSSOP-20 package compatibility with space-constrained board layouts.
Technical Context
The 74ABT240PW,118 implements two independent 4-bit inverting buffer groups, each controlled by its own output enable (1OE, 2OE). Its BiCMOS architecture delivers low static current (50µA in 3-state) while sustaining high-speed switching and robust output drive.
It supports live insertion/extraction via power-up 3-state functionality and latch-up protection exceeding 500mA per JEDEC Std 17. Input and output voltage tolerances (–0.5V to +7.0V) allow safe interfacing with mixed-voltage systems under transient conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Octal inverting buffer with dual 3-state control (1OE/2OE) |
| Propagation Delay (tPLH/tPHL) | 3.1ns typical at VCC = 5V, CL = 50pF - enables sub-300MHz bus operation |
| Output Drive | +64mA sink / –32mA source - drives heavy capacitive loads and multiple TTL inputs |
| Supply Voltage Range | 4.5V to 5.5V - compatible with standard 5V logic rails and marginal supply conditions |
| Input Capacitance (CIN) | 4pF - minimizes loading on upstream drivers and preserves signal integrity |
| 3-State Leakage (IOZL/IOZH) | ±5µA max at VCC = 5.5V - ensures clean bus isolation during disable |
| Operating Temperature | –40°C to +85°C - qualified for industrial and extended-temperature embedded systems |
Pinout & Package
74ABT240PW,118 is housed in a 20-pin plastic TSSOP Type I package (SOT360-1), measuring 6.5mm × 4.4mm × 1.2mm, with 0.65mm pitch and exposed pad not present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 19 | 1OE, 2OE | Active-low output enables - independently control Group 1 (pins 18,16,14,12) and Group 2 (pins 9,7,5,3) |
| 2,4,6,8 | 1A0–1A3 | Inverting input group 1 - drives corresponding Y outputs with logic inversion |
| 11,13,15,17 | 2A0–2A3 | Inverting input group 2 - isolated control path from Group 1 for flexible bus partitioning |
| 18,16,14,12 | 1Y0–1Y3 | Inverted outputs for Group 1 - high-drive, 3-state outputs tied to 1OE |
| 9,7,5,3 | 2Y0–2Y3 | Inverted outputs for Group 2 - electrically separated from Group 1 for noise containment |
| 10 | GND | Ground reference - shared return for all I/O and supply currents |
| 20 | VCC | Positive supply - powers internal BiCMOS circuitry and output stages |
Key Features
| Feature | Design Value |
|---|---|
| Live insertion/extraction support | Guaranteed 3-state at power-up prevents bus contention during hot-swap operations |
| Latch-up immunity | Exceeds 500mA per JEDEC Std 17 - eliminates risk of destructive latch-up in noisy environments |
| ESD robustness | 2000V HBM / 200V MM - withstands handling and system-level ESD events without protection diodes |
| Low dynamic power | 3.1ns delay with only 50µA ICCZ in 3-state - reduces heat generation in dense logic arrays |
| Input transition rate tolerance | 0–10 ns/V - accepts slow-rising clock or control signals without false triggering |
Applications
| Industrial PLC Backplane Interface | Legacy ISA Bus Buffering |
|---|---|
Use Scenario: Isolating and driving address/data lines between CPU and I/O modules in modular control cabinets. IC Role / Device Role / Timing Role: Octal inverting buffer with dual OE control provides directional bus separation and noise margin enhancement. Use Value: ±64mA drive sustains signal integrity over 15cm backplane traces; 3.1ns delay ensures setup/hold compliance at 20MHz bus rates. | Use Scenario: Level-shifting and fanout buffering for 8-bit ISA data bus segments in retro-computing or test equipment. IC Role / Device Role / Timing Role: Inverting 3-state buffer matches ISA's active-low control signaling and bidirectional data flow requirements. Use Value: Dual OE pins allow independent gating of upper/lower byte lanes; TSSOP-20 footprint fits legacy PCB real estate constraints. |
| Automotive Body Control Module | Test Equipment Signal Conditioning |
Use Scenario: Driving multiplexed sensor readout lines and actuator command buses in under-hood ECUs. IC Role / Device Role / Timing Role: High-current 3-state buffer interfaces microcontroller GPIOs to higher-power external loads. Use Value: –40°C to +85°C rating ensures reliability in engine bay thermal cycling; latch-up immunity prevents field failures due to load dump transients. | Use Scenario: Conditioning digital stimulus/response signals in automated test fixtures with mixed-voltage DUTs. IC Role / Device Role / Timing Role: Inverting buffer with precise tPZH/tPHZ timing isolates tester logic from DUT capacitance and ground bounce. Use Value: 1.1ns typical enable time and 1.8ns disable time support <100ns test cycle margins; 4pF CIN minimizes fixture-induced skew. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal inverting buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ABT240DBR | Same logic function, SOIC-20 package (SOT163-1); 3.5ns max tPLH vs. 4.3ns for 74ABT240PW,118 | Requires PCB layout change due to wider SOIC body (7.5mm vs. 6.5mm); no thermal pad | Select when board space allows larger footprint and SOIC reflow compatibility is preferred |
| 74LVT240PW,118 | Lower voltage operation (2.7–3.6V), 3.2ns tPLH, 32mA drive - not 5V-compatible | Not suitable for 5V bus systems; requires level translation if interfacing with ABT-family logic | Choose only for 3.3V-only designs where power efficiency outweighs 5V interoperability |
Compared with SN74ABT240DBR and 74LVT240PW,118, the 74ABT240PW,118 uniquely balances 5V bus drive strength, TSSOP space efficiency, and industrial temperature resilience - making it optimal for new 5V embedded designs where density and ruggedness are prioritized over legacy package compatibility or ultra-low voltage operation.
Availability
74ABT240PW,118 is available at Aetrix Electronics and suitable for industrial PLC backplanes, automotive body control modules, and legacy ISA bus expansion requiring stable component supply, long-lifecycle availability, and guaranteed 5V-tolerant 3-state performance.
Supply support for 74ABT240PW,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 delivering high-performance logic, analog, and RF solutions for automotive, industrial, and communication markets.
The 74ABT series was engineered for high-speed, high-drive 5V TTL-compatible bus interfacing - targeting applications demanding robust noise immunity, live insertion, and reliable operation across extended temperature ranges.
FAQ
What is the maximum output current specification for 74ABT240PW,118?
The 74ABT240PW,118 supports up to +64mA output sink current and –32mA output source current per pin under recommended operating conditions (VCC = 4.5V to 5.5V). This drive strength is specified at VO = 0.55V for sinking and VO = 2.0V for sourcing, enabling direct interface with multiple TTL loads or moderate-capacitance transmission lines without external buffers.
Does 74ABT240PW,118 support live insertion into a powered backplane?
Yes, the 74ABT240PW,118 supports live insertion/extraction due to its power-up 3-state feature and robust ESD/latch-up protection. During power ramp-up, outputs remain in high-impedance until VCC stabilizes above ~2.1V, preventing bus contention. This behavior is verified per Philips/NXP datasheet Section "Power-up 3-State" and JEDEC Std 17 latch-up testing.
What is the propagation delay of 74ABT240PW,118 at 5V supply?
The 74ABT240PW,118 exhibits a typical propagation delay (tPLH/tPHL) of 3.1ns at VCC = 5.0V and CL = 50pF, with a maximum of 4.3ns over the full –40°C to +85°C temperature range. These values are measured from input (nAx) to corresponding output (nYx) under defined AC test conditions and directly impact maximum achievable bus clock frequency.
Is 74ABT240PW,118 pin-compatible with other 74ABT240 variants?
Yes, the 74ABT240PW,118 shares identical pin configuration and logic function with all 74ABT240 variants (e.g., 74ABT240D, 74ABT240DB), including the same 20-pin TSSOP pinout, dual OE placement, and I/O assignment. Differences are limited to package type and marking - no electrical or functional variation exists between these orderable versions of the same base device.
What are the absolute maximum voltage ratings for 74ABT240PW,118 inputs and outputs?
The 74ABT240PW,118 has absolute maximum input voltage (VI) of –1.2V to +7.0V and output voltage (VOUT) of –0.5V to +5.5V when in Off or High state. These ratings permit safe operation during power sequencing, hot-swap events, or transient coupling - provided input/output current limits (e.g., IIK ≤ –18mA, IOK ≤ –50mA) are not exceeded, as specified in the Philips/NXP datasheet Absolute Maximum Ratings table.
74ABT240PW,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, 64mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-TSSOP
74ABT240PW,118 FAQ
1.How can I place an order for 74ABT240PW,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ABT240PW,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 74ABT240PW,118 reliable?
The price and inventory of 74ABT240PW,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ABT240PW,118 is usually 5 days.
3.What payment methods are accepted for 74ABT240PW,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ABT240PW,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74ABT240PW,118?
74ABT240PW,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ABT240PW,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 74ABT240PW,118?
For technical support, including 74ABT240PW,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ABT240PW,118 requirements.
6.How does Aetrix verify that 74ABT240PW,118 is sourced from the original manufacturer or authorized distributors?
All 74ABT240PW,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 74ABT240PW,118 meets industry standards.
7.What is the process for return or replacement of 74ABT240PW,118?
All 74ABT240PW,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74ABT240PW,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 74ABT240PW,118 part is unused and in its original packaging.
Return procedure for 74ABT240PW,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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