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NXP Semiconductors 74ABT240N,602
- Part No.:
- 74ABT240N,602
- Manufacturer:
- NXP Semiconductors
- Package:
- 20-DIP (0.300", 7.62mm)
- Datasheet:
-
74ABT240N,602.pdf
- Description:
- IC BUFFER INVERT 5.5V 20DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,968
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Product details
Overview
74ABT240N,602 from NXP Semiconductors (formerly Philips) is an octal inverting 3-state buffer IC designed for high-speed bus interface applications. It provides dual independent output-enable controls (1OE, 2OE), ±32mA/±64mA drive capability, 3.1ns typical propagation delay at 5V/50pF, and operates across –40°C to +85°C. It is used in address/data bus buffering and level translation in industrial control backplanes.
For engineers reviewing the 74ABT240N,602 datasheet, 74ABT240N,602 pinout, 74ABT240N,602 application, or 74ABT240N,602 equivalent, key selection criteria include verified 3-state timing (tPZH/tPLZ ≤ 6.4ns), latch-up immunity (>500mA), ESD robustness (2000V HBM), and compatibility with 5V TTL logic families in legacy embedded systems.
Technical Context
The 74ABT240N,602 implements a BiCMOS architecture delivering low static current (ICCZ = 50µA in 3-state) while sustaining high-speed switching. Its dual OE structure allows independent control of two 4-bit inverting output groups (1Y0–1Y3 and 2Y0–2Y3), enabling selective bus partitioning without signal contention.
It supports live insertion/extraction and power-up 3-state behavior, ensuring outputs remain high-impedance during supply ramp-up. Input thresholds (VIL = 0.8V, VIH = 2.0V) and output drive (IOL = 64mA, IOH = –32mA) are fully specified over the full –40°C to +85°C operating range at VCC = 4.5–5.5V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Octal inverting buffer with dual 3-state control (1OE, 2OE) |
| Propagation Delay | 3.1ns typical (tPLH/tPHL, CL = 50pF, VCC = 5V) - enables >200MHz bus operation |
| Output Drive | +64mA sink / –32mA source - drives heavy capacitive loads and multiple TTL inputs |
| Supply Voltage | 4.5V to 5.5V - compatible with standard 5V logic rails and tolerant of ripple |
| Operating Temp | –40°C to +85°C - qualified for industrial temperature environments |
| ESD Rating | 2000V HBM, 200V MM - meets MIL-STD-883 requirements for handling robustness |
| Latch-up Immunity | >500mA per JEDEC Std 17 - prevents destructive latch-up under transient overcurrent |
Pinout & Package
74ABT240N,602 is housed in a 20-pin plastic DIP (Dual In-line Package) with 2.54mm pitch, suitable for through-hole prototyping and industrial PCB assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 19 | 1OE, 2OE | Active-low output enables - independently disable each 4-bit output group |
| 2,4,6,8 | 1A0–1A3 | Inverting input group 1 - drives corresponding 1Y0–1Y3 outputs |
| 11,13,15,17 | 2A0–2A3 | Inverting input group 2 - drives corresponding 2Y0–2Y3 outputs |
| 18,16,14,12 | 1Y0–1Y3 | Inverted outputs for group 1 - high-impedance when 1OE = HIGH |
| 9,7,5,3 | 2Y0–2Y3 | Inverted outputs for group 2 - high-impedance when 2OE = HIGH |
| 10 | GND | Ground reference - must be low-impedance connection to minimize noise coupling |
| 20 | VCC | Positive supply - decoupling capacitor (0.1µF) required near pin for AC stability |
Key Features
| Feature | Design Value |
|---|---|
| Live insertion/extraction support | Enables hot-swap maintenance in modular backplane systems without power cycling |
| Power-up 3-state | Guarantees outputs remain high-Z during VCC ramp-up, preventing bus contention at power-on |
| Dual independent OE control | Allows time-multiplexed or isolated bus segment control without external logic |
| BiCMOS process technology | Combines CMOS low static power (ICCZ = 50µA) with bipolar speed and drive strength |
| Latch-up protection | Exceeds 500mA per JEDEC Std 17 - ensures reliability in noisy industrial environments |
Applications
| Industrial Backplane Bus Buffering | Legacy System Level Translation |
|---|---|
Use Scenario: Buffering address/data lines between CPU and peripheral cards in DIN-rail mounted PLC chassis. IC Role / Device Role / Timing Role: Octal inverting 3-state buffer isolating bidirectional bus segments with controlled enable timing. Use Value: Prevents signal reflection and contention via precise tPZH/tPLZ (≤6.4ns) and ±64mA drive into 50pF+ loads. | Use Scenario: Interfacing 5V microcontrollers with older TTL peripherals requiring inverted logic levels. IC Role / Device Role / Timing Role: Level-shifting inverter with 3-state capability for shared bus arbitration. Use Value: Matches TTL input thresholds (VIH = 2.0V, VIL = 0.8V) and delivers rail-to-rail swing with no external pull-ups. |
| Hot-Swappable I/O Module Interface | Test Equipment Signal Conditioning |
Use Scenario: Enabling/disabling I/O expansion modules in field-replaceable rack systems. IC Role / Device Role / Timing Role: Dual-OE controlled bus gate managing data flow during module insertion/removal. Use Value: Live insertion support and power-up 3-state eliminate bus glitches during hot-swap events. | Use Scenario: Driving calibrated test signals into oscilloscope or logic analyzer inputs. IC Role / Device Role / Timing Role: High-fidelity inverting driver with low COUT (7pF) and fast edge rates (tR/tF = 2.5ns). Use Value: Minimizes loading distortion on sensitive measurement nodes while preserving signal integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal inverting buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ABT240N | Identical pinout, function, and AC/DC specs; TI's second-source version with same 20-DIP package | No functional deviation - drop-in replacement in existing designs | Select when sourcing diversification or TI-aligned BOMs is required |
| 74ACT240PC | Higher VOH (≥4.4V @ 50µA) but lower IOL (24mA); CMOS-only process, no BiCMOS drive | Not suitable for driving heavy TTL loads or long traces requiring >32mA sink | Choose only for low-power, light-load applications where speed (tPD ≈ 4ns) suffices |
Compared with SN74ABT240N and 74ACT240PC, the 74ABT240N,602 uniquely balances high sink current (64mA), industrial temp range, and live-insertion capability - making it optimal for ruggedized bus interfaces where drive strength and reliability outweigh ultra-low power needs.
Availability
74ABT240N,602 is available at Aetrix Electronics and suitable for industrial backplane buffering, legacy system level translation, and hot-swappable I/O module interface applications requiring stable component supply and long-term obsolescence management.
Supply support for 74ABT240N,602 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 formed from the spin-off of Philips' semiconductor division, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.
The 74ABT series was developed by Philips for high-speed, high-drive 5V logic interfacing - specifically targeting industrial control, telecom infrastructure, and legacy computing systems demanding robust bus drivers.
FAQ
What is the maximum output sink current specification for the 74ABT240N,602?
The 74ABT240N,602 is rated for a maximum low-level output current (IOL) of 64mA per output pin under recommended operating conditions (VCC = 4.5V, Tamb = –40°C to +85°C). This value is confirmed in the DC Electrical Characteristics table and reflects sustained drive capability into heavy capacitive or resistive loads without violating VOL limits.
Does the 74ABT240N,602 support hot-plug operation?
Yes, the 74ABT240N,602 explicitly supports live insertion and extraction as stated in its Features section. This capability is enabled by its BiCMOS design and internal protection structures, allowing safe connection/disconnection while powered - critical for modular industrial backplane systems using the 74ABT240N,602.
What is the propagation delay of the 74ABT240N,602 at 5V supply?
The 74ABT240N,602 has a typical propagation delay (tPLH/tPHL) of 3.1ns when loaded with 50pF at VCC = 5V and Tamb = 25°C, as specified in the Quick Reference Data table. The maximum delay across temperature and voltage is 4.8ns, supporting reliable operation in sub-5ns timing-critical bus paths.
Is the 74ABT240N,602 pin-compatible with other 74-series octal buffers?
The 74ABT240N,602 shares the same 20-pin DIP pinout and logic function as industry-standard 74ABT240 variants (e.g., SN74ABT240N), including identical pin numbering, signal assignments, and dual-OE configuration. However, it is not pin-compatible with non-ABT families like 74LS240 or 74HC240 due to differing electrical characteristics and timing behavior.
What package type does the 74ABT240N,602 use?
The 74ABT240N,602 uses a 20-pin plastic DIP (Dual In-line Package) with 2.54mm lead pitch, designated as package SOT146-1 in Philips/NXP documentation. This through-hole package supports manual soldering, socket-based prototyping, and legacy industrial PCB assembly processes.
74ABT240N,602 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74ABT
- Package/Case:
- 20-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- 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:
- Through Hole
- Supplier Device Package:
- 20-DIP
74ABT240N,602 FAQ
1.How can I place an order for 74ABT240N,602 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ABT240N,602 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 74ABT240N,602 reliable?
The price and inventory of 74ABT240N,602 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ABT240N,602 is usually 5 days.
3.What payment methods are accepted for 74ABT240N,602?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ABT240N,602 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74ABT240N,602?
74ABT240N,602 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ABT240N,602 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 74ABT240N,602?
For technical support, including 74ABT240N,602 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ABT240N,602 requirements.
6.How does Aetrix verify that 74ABT240N,602 is sourced from the original manufacturer or authorized distributors?
All 74ABT240N,602 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 74ABT240N,602 meets industry standards.
7.What is the process for return or replacement of 74ABT240N,602?
All 74ABT240N,602 units undergo pre-shipment inspection (PSI). If there is an issue with 74ABT240N,602, 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 74ABT240N,602 part is unused and in its original packaging.
Return procedure for 74ABT240N,602:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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