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Home > Products > Integrated Circuits (ICs) > Logic > Buffers, Drivers, Receivers, Transceivers

Texas Instruments SN64BCT25244DWRG4

Name: SN64BCT25244DWRG4
Brand: Texas Instruments
SKU: SN64BCT25244DWRG4
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SN64BCT25244DWRG4

Manufacturer:: Texas Instruments

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: 24-SOIC (0.295", 7.50mm Width)

Datasheet:: SN64BCT25244DWRG4.pdf

Description:: IC BUF NON-INVERT 5.5V 24SOIC

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Product details

Overview

SN64BCT25244DWRG4 from Texas Instruments is a 25-Ω octal 3-state buffer/line driver optimized for incident-wave switching on 25-Ω transmission lines, sinking up to 188 mA per output, operating from −40°C to 85°C at 4.5–5.5 V supply, and featuring distributed V_CC/GND pins to suppress simultaneous-switching noise in memory address and clock distribution systems.

For engineers reviewing the SN64BCT25244DWRG4 datasheet, SN64BCT25244DWRG4 pinout, SN64BCT25244DWRG4 application, or SN64BCT25244DWRG4 equivalent, key selection criteria include I_OL = 188 mA drive capability, high-impedance state during power-up/down (<3 V), ESD protection >2000 V (MIL-STD-883C), t_PZH/t_PZL < 9.7 ns, and SOIC-24 package compatibility with legacy 300-mil DIP footprints.

Technical Context

This BiCMOS octal buffer implements dual independent 4-bit channels (1A→1Y and 2A→2Y), each controlled by dedicated 3-state enable inputs (1OE, 2OE). Its low-impedance output stage enables incident-wave termination without external resistors on 25-Ω lines, while distributed power/ground pins reduce ground bounce across all eight outputs.

The device enters high-impedance state when V_CC < ~3 V-ensuring safe bus isolation during power sequencing-and supports two temperature grades: −40°C to 85°C (industrial) and 0°C to 70°C (commercial), with absolute maximum V_CC of 7 V and input/output voltage tolerance up to 5.5 V in disabled states.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CC Range	4.5 V to 5.5 V - Ensures stable operation under standard 5-V TTL/CMOS supply tolerances.
I_OL (per output)	188 mA - Enables direct incident-wave switching on 25-Ω transmission lines without external series termination.
t_PZH/t_PZL	≤9.7 ns - Guarantees fast 3-state enable/disable timing for dynamic bus sharing in high-speed memory systems.
Power-Up/Down Hi-Z	Active below ~3 V - Prevents bus contention during system power ramp-up or brownout conditions.
ESD Protection	>2000 V HBM - Meets MIL-STD-883C Method 3015, supporting robust handling in manufacturing and field environments.
Operating Temperature	−40°C to 85°C - Qualified for industrial-grade embedded control and data acquisition applications.
C_i/C_o	5.5 pF / 17 pF - Low input/output capacitance minimizes loading on driving logic and signal integrity degradation.

Pinout & Package

SN64BCT25244DWRG4 is housed in a 24-pin SOIC (DW) package with 300-mil width, gull-wing leads, RoHS-compliant NiPdAu finish, and moisture sensitivity level (MSL) 1 (unlimited floor life at ≤30°C/60% RH).

Pin/Terminal	Circuit Role	Design Meaning
1OE, 2OE	Active-low 3-state enable inputs	Assert low to enable respective 4-bit channel; high forces Y outputs into high-impedance state.
1A1–1A4, 2A1–2A4	Input data terminals	Accept TTL/CMOS-compatible logic levels; VIH ≥ 2 V, VIL ≤ 0.8 V at VCC = 5 V.
1Y1–1Y4, 2Y1–2Y4	Output drivers	Sink up to 188 mA each; support 25-Ω line matching via low-impedance pull-down (no external resistor needed).
V_CC (Pins 4, 10, 21)	Distributed power supply	Three separate V_CC pins minimize IR drop and supply noise during simultaneous output switching.
GND (Pins 2, 5, 8, 11, 18, 23)	Distributed ground returns	Six GND pins provide low-inductance return paths, reducing ground bounce and crosstalk in dense PCB layouts.

Key Features

Feature	Design Value
25-Ω line driver architecture	Eliminates need for external series termination resistors on matched-impedance buses, saving board space and BOM cost.
BiCMOS process technology	Reduces ICCZ quiescent current to 7–11 mA (vs. bipolar-only equivalents), lowering standby power in always-on systems.
Power-rail-safe 3-state behavior	Outputs remain high-impedance until V_CC exceeds ~3 V, preventing bus conflicts during cold-start or partial-power conditions.
Distributed V_CC/GND pin layout	Suppresses simultaneous switching noise (SSN) by isolating current transients across multiple supply/ground nodes.
MIL-STD-883C ESD rating	Withstands >2000 V human-body model stress-critical for automated assembly and field-replaceable module reliability.

Applications

Memory Address Drivers	Clock Distribution Networks
Use Scenario: Driving parallel address buses in SRAM, EPROM, or FPGA configuration memory subsystems with tight timing margins and 25-Ω trace impedance. IC Role / Device Role / Timing Role: Octal 3-state buffer providing low-skew, high-current address signal fanout with guaranteed t_PLH/t_PHL ≤ 5.6 ns. Use Value: Enables incident-wave switching to meet setup/hold timing without adding series resistors or degrading edge rate.	Use Scenario: Distributing high-fanout clock signals to multiple synchronous logic blocks (e.g., microcontroller peripherals, ADC/DAC interfaces) over controlled-impedance PCB traces. IC Role / Device Role / Timing Role: Low-jitter, low-skew clock buffer with fast 3-state control for dynamic clock gating and domain isolation. Use Value: Maintains signal integrity on 25-Ω clock lines while supporting hot-swap reconfiguration via OE-controlled bus release.
Bus-Oriented Transceivers	Industrial Backplane Interfaces
Use Scenario: Bidirectional data bus isolation in legacy ISA or custom parallel backplanes where multiple masters share a common data path. IC Role / Device Role / Timing Role: Dual-channel 4-bit transceiver section enabling direction-controlled data flow with independent OE control per channel. Use Value: Provides deterministic bus arbitration timing (t_PZH/t_PZL ≤ 9.7 ns) and prevents contention during bus handoff transitions.	Use Scenario: Interfacing modular I/O cards to a central controller via rigid 25-Ω parallel backplane wiring in programmable logic controllers (PLCs) and test equipment. IC Role / Device Role / Timing Role: Robust line driver ensuring signal fidelity across long, noisy backplane runs with immunity to ground shift and ESD events. Use Value: Delivers 188 mA sink current per line to overcome backplane capacitance and maintain clean logic thresholds at 20+ MHz rates.

Memory Address Drivers

Clock Distribution Networks

Use Scenario: Driving parallel address buses in SRAM, EPROM, or FPGA configuration memory subsystems with tight timing margins and 25-Ω trace impedance.

IC Role / Device Role / Timing Role: Octal 3-state buffer providing low-skew, high-current address signal fanout with guaranteed t_PLH/t_PHL ≤ 5.6 ns.

Use Value: Enables incident-wave switching to meet setup/hold timing without adding series resistors or degrading edge rate.

Use Scenario: Distributing high-fanout clock signals to multiple synchronous logic blocks (e.g., microcontroller peripherals, ADC/DAC interfaces) over controlled-impedance PCB traces.

IC Role / Device Role / Timing Role: Low-jitter, low-skew clock buffer with fast 3-state control for dynamic clock gating and domain isolation.

Use Value: Maintains signal integrity on 25-Ω clock lines while supporting hot-swap reconfiguration via OE-controlled bus release.

Bus-Oriented Transceivers

Industrial Backplane Interfaces

Use Scenario: Bidirectional data bus isolation in legacy ISA or custom parallel backplanes where multiple masters share a common data path.

IC Role / Device Role / Timing Role: Dual-channel 4-bit transceiver section enabling direction-controlled data flow with independent OE control per channel.

Use Value: Provides deterministic bus arbitration timing (t_PZH/t_PZL ≤ 9.7 ns) and prevents contention during bus handoff transitions.

Use Scenario: Interfacing modular I/O cards to a central controller via rigid 25-Ω parallel backplane wiring in programmable logic controllers (PLCs) and test equipment.

IC Role / Device Role / Timing Role: Robust line driver ensuring signal fidelity across long, noisy backplane runs with immunity to ground shift and ESD events.

Use Value: Delivers 188 mA sink current per line to overcome backplane capacitance and maintain clean logic thresholds at 20+ MHz rates.

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
SN74BCT244N	Same BiCMOS architecture, but 20-pin PDIP package; I_OL = 188 mA, t_PZH = 10 ns, no distributed V_CC/GND pins.	Lacks SOIC-24 footprint and noise-suppression pin layout; suited for through-hole prototyping or legacy DIP-based designs.	Select SN74BCT244N only when DIP packaging and manual assembly are required; not recommended for new surface-mount designs demanding low SSN.
SN64BCT25244DW	Identical die and electrical specs; differs only in tape-and-reel packaging (DWRG4 = 2000-piece reel, DW = tube); same marking "6BCT25244".	No functional or application difference; both qualified for −40°C to 85°C operation and share identical SOIC-24 mechanicals.	SN64BCT25244DW is functionally identical and interchangeable-choose DWRG4 for automated SMT production, DW for sampling or low-volume hand assembly.

Compared with SN74BCT244N, SN64BCT25244DWRG4 offers superior noise immunity via distributed power/ground pins and SOIC-24 compatibility with modern PCB assembly, while SN64BCT25244DW provides identical performance in tube packaging-making DWRG4 optimal for high-volume SMT lines requiring traceable reel delivery.

Availability

SN64BCT25244DWRG4 is available at Aetrix Electronics and suitable for memory address drivers, clock distribution networks, and industrial backplane interfaces requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for SN64BCT25244DWRG4 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

Texas Instruments is a global semiconductor leader delivering analog, embedded processing, and logic solutions for industrial, automotive, and communications markets.

The BCT family-including SN64BCT25244DWRG4-is engineered for high-speed, high-drive 3-state buffering in memory, clock, and bus systems where incident-wave switching, noise resilience, and power-rail-safe operation are critical.

FAQ

What is the maximum output sink current per channel for SN64BCT25244DWRG4?

The SN64BCT25244DWRG4 delivers a guaranteed I_OL of 188 mA per output under recommended operating conditions (V_CC = 4.5 V, T_A = −40°C to 85°C). This enables direct incident-wave switching on 25-Ω transmission lines without external series termination resistors. The SN64BCT25244DWRG4 maintains this drive strength across its full industrial temperature range and supports short-duration peak loads consistent with its absolute maximum rating of 376 mA per output.

Does SN64BCT25244DWRG4 enter high-impedance state during power-up?

Yes, the SN64BCT25244DWRG4 automatically places all outputs in high-impedance state whenever V_CC falls below approximately 3 V-covering both power-up ramp and power-down discharge phases. This behavior is intrinsic to its BiCMOS design and ensures bus isolation without requiring external reset sequencing or pull-up/pull-down networks. The SN64BCT25244DWRG4 remains in this safe state until V_CC stabilizes within its recommended operating range of 4.5–5.5 V.

What package type and lead finish does SN64BCT25244DWRG4 use?

SN64BCT25244DWRG4 uses a 24-pin SOIC (DW) package with 300-mil body width, gull-wing leads, and a NiPdAu (nickel-palladium-gold) lead finish compliant with RoHS and JS709B low-halogen requirements. It is rated MSL Level-1 (unlimited floor life at ≤30°C/60% RH) and ships in 2000-piece tape-and-reel format (DWRG4 suffix). The SN64BCT25244DWRG4 shares mechanical dimensions and solder profile compatibility with industry-standard SOIC-24 footprints.

How does SN64BCT25244DWRG4 differ from SN74BCT244 in noise performance?

SN64BCT25244DWRG4 incorporates distributed V_CC (pins 4, 10, 21) and six GND pins (2, 5, 8, 11, 18, 23) to minimize simultaneous switching noise (SSN), whereas SN74BCT244 uses single-point V_CC/GND connections. This architecture reduces ground bounce and supply rail disturbance during multi-output transitions-critical for high-density memory and clock routing. The SN64BCT25244DWRG4's layout directly improves signal integrity where SN74BCT244 may require additional decoupling or layout mitigation.

Is SN64BCT25244DWRG4 compatible with 3.3-V logic interfaces?

No, SN64BCT25244DWRG4 is specified only for 4.5–5.5 V operation and is not 3.3-V tolerant. Its input thresholds (VIH ≥ 2 V, VIL ≤ 0.8 V) and output voltage levels (VOH ≥ 2 V at I_OH = −80 mA) align with 5-V TTL/CMOS logic families. Driving the SN64BCT25244DWRG4 inputs from 3.3-V sources risks marginal VIH margin, and interfacing its 5-V outputs to 3.3-V receivers requires level-shifting circuitry. For mixed-voltage systems, consider TI's AVC or LVC series instead of SN64BCT25244DWRG4.

SN64BCT25244DWRG4 Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: 64BCT

Package/Case:: 24-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:: 80mA, 188mA

Voltage - Supply:: 4.5V ~ 5.5V

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 24-SOIC

SN64BCT25244DWRG4 FAQ

1.How can I place an order for SN64BCT25244DWRG4 through Aetrix?

Please submit a Request for Quotation (RFQ) for SN64BCT25244DWRG4 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 SN64BCT25244DWRG4 reliable?

The price and inventory of SN64BCT25244DWRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN64BCT25244DWRG4 is usually 5 days.

3.What payment methods are accepted for SN64BCT25244DWRG4?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN64BCT25244DWRG4 transactions.

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4.How is shipping managed for SN64BCT25244DWRG4?

SN64BCT25244DWRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SN64BCT25244DWRG4 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 SN64BCT25244DWRG4?

For technical support, including SN64BCT25244DWRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN64BCT25244DWRG4 requirements.

6.How does Aetrix verify that SN64BCT25244DWRG4 is sourced from the original manufacturer or authorized distributors?

All SN64BCT25244DWRG4 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 SN64BCT25244DWRG4 meets industry standards.

7.What is the process for return or replacement of SN64BCT25244DWRG4?

All SN64BCT25244DWRG4 units undergo pre-shipment inspection (PSI). If there is an issue with SN64BCT25244DWRG4, 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 SN64BCT25244DWRG4 part is unused and in its original packaging.

Return procedure for SN64BCT25244DWRG4:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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