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

Texas Instruments SN74ABT827PW

Name: SN74ABT827PW
Brand: Texas Instruments
SKU: SN74ABT827PW
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SN74ABT827PW

Manufacturer:: Texas Instruments

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: 24-TSSOP (0.173", 4.40mm Width)

Datasheet:: SN74ABT827PW.pdf

Description:: IC BUFF NON-INVERT 5.5V 24TSSOP

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Product details

Overview

SN74ABT827PW from Texas Instruments is a 10-bit noninverting 3-state buffer/bus driver in TSSOP-24 package, delivering −32-mA high-level and 64-mA low-level output drive at 5-V supply, with flow-through pinout for optimized PCB layout in wide-data-path bus interface applications.

For engineers reviewing the SN74ABT827PW datasheet, SN74ABT827PW pinout, SN74ABT827PW application, or SN74ABT827PW equivalent, key selection considerations include its dual active-low 3-state enable inputs (OE1/OE2), EPIC-II^B BiCMOS process enabling <1-V output ground bounce, and guaranteed high-impedance state during power-up/down below 2.1 V.

Technical Context

This device implements a 2-input AND gate control logic for 3-state outputs: either OE1 or OE2 high forces all ten Y outputs into high-impedance. It uses Texas Instruments' EPIC-II^B BiCMOS technology to achieve low power dissipation while maintaining TTL-compatible input thresholds (V_IL = 0.8 V, V_VIH = 2.0 V) and rail-to-rail output swing.

Propagation delays are tightly specified: t_PLH/t_PHL ≤ 4.9 ns (max) at V_CC = 5 V, CL = 50 pF; enable/disable times (t_PZH, t_PZL, t_PHZ, t_PLZ) range from 1 ns to 7.9 ns. Latch-up immunity exceeds 500 mA per JEDEC JESD-17.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CC Range	4.5 V to 5.5 V - ensures compatibility with standard 5-V TTL/CMOS systems and robust noise margin
I_O Drive	−32 mA (I_OH), 64 mA (I_OL) - supports heavy capacitive loads and fanout to multiple TTL inputs without buffering
t_PLH/t_PHL	≤ 4.9 ns (max) at 5 V, 50-pF load - enables reliable operation in high-speed data buses up to ~100 MHz
V_OL / V_OH	≤ 0.55 V (I_OL = 64 mA), ≥ 2.0 V (I_OH = −32 mA) - guarantees solid logic low/high under full drive conditions
Power-Up State	High-impedance when V_CC < 2.1 V - prevents bus contention during system power sequencing
Input Clamp Current	−18 mA - protects inputs against transient overvoltage events without external diodes
θ_JA	120°C/W (PW package) - defines thermal derating limit for continuous operation at ambient up to 85°C

Pinout & Package

TSSOP-24 (PW) package: 4.4 mm × 5.0 mm body, 0.65 mm pitch, 1.2 mm max height, exposed pad not present, RoHS-compliant NiPdAu lead finish, MSL Level-1.

Pin/Terminal	Circuit Role	Design Meaning
1, 13	OE1, OE2	Active-low 3-state enable inputs - AND logic: either high disables all outputs
2–11, 14–23	A1–A10, Y1–Y10	Data inputs and true (noninverting) outputs - flow-through arrangement minimizes trace crossovers
12	GND	Ground reference - dedicated pin reduces ground bounce coupling across 10 channels
24	V_CC	5-V supply - decoupling capacitor required adjacent to pin for stable switching performance
NC (pins 5, 15, 16)	No internal connection	Unbonded die pads - must remain unconnected on PCB to avoid parasitic coupling

Key Features

Feature	Design Value
EPIC-II^B BiCMOS Process	Reduces dynamic power vs. bipolar-only designs while retaining high drive strength and speed
Flow-Through Architecture	Input A1–A10 and output Y1–Y10 arranged linearly across opposing sides - eliminates layer jumps in dense bus routing
Output Ground Bounce (V_OLP)	< 1 V at V_CC = 5 V, T_A = 25°C - maintains signal integrity during simultaneous switching of multiple outputs
Power-Up/Down High-Z	Guaranteed high-impedance state when V_CC < 2.1 V - prevents back-driving or contention during hot-swap or brownout
Latch-Up Immunity	> 500 mA per JEDEC JESD-17 - ensures robustness in industrial environments with ESD or surge transients

Applications

Backplane Data Bus Interface	Industrial PLC I/O Expansion Module
Use Scenario: Interfacing microcontroller local bus to a 10-bit parallel backplane carrying status and control signals across multiple slots. IC Role / Device Role / Timing Role: Bidirectional bus driver isolating master and slave domains while providing level-shifting and drive boost. Use Value: Flow-through pinout simplifies single-layer routing; high drive strength ensures signal integrity over 15-cm traces with 50-pF load.	Use Scenario: Adding isolated digital input/output capability to a programmable logic controller via modular carrier board. IC Role / Device Role / Timing Role: Parallel data latch and buffer between FPGA I/O bank and screw-terminal field wiring. Use Value: Dual OE inputs allow synchronized enable/disable of all 10 channels during module reset; high-impedance on power loss prevents field-side short circuits.
Test Equipment Digital Pattern Generator	Legacy System Bus Extender
Use Scenario: Driving 10-bit stimulus patterns onto DUT pins in automated test equipment with tight timing margins. IC Role / Device Role / Timing Role: Precision-controlled output stage with sub-5-ns propagation delay and minimal skew across channels. Use Value: Guaranteed t_PLH/t_PHL ≤ 4.9 ns and low ground bounce (<1 V) ensure deterministic edge placement at 100-MHz update rates.	Use Scenario: Extending an aging 80C88-based SBC's address/data bus to support additional memory or peripheral cards. IC Role / Device Role / Timing Role: TTL-compatible bus repeater restoring signal amplitude and timing after long trace runs. Use Value: −32-mA/64-mA drive compensates for line losses; 0.55-V V_OL at full load meets TTL VIH minimum for downstream receivers.

Backplane Data Bus Interface

Industrial PLC I/O Expansion Module

Use Scenario: Interfacing microcontroller local bus to a 10-bit parallel backplane carrying status and control signals across multiple slots.

IC Role / Device Role / Timing Role: Bidirectional bus driver isolating master and slave domains while providing level-shifting and drive boost.

Use Value: Flow-through pinout simplifies single-layer routing; high drive strength ensures signal integrity over 15-cm traces with 50-pF load.

Use Scenario: Adding isolated digital input/output capability to a programmable logic controller via modular carrier board.

IC Role / Device Role / Timing Role: Parallel data latch and buffer between FPGA I/O bank and screw-terminal field wiring.

Use Value: Dual OE inputs allow synchronized enable/disable of all 10 channels during module reset; high-impedance on power loss prevents field-side short circuits.

Test Equipment Digital Pattern Generator

Legacy System Bus Extender

Use Scenario: Driving 10-bit stimulus patterns onto DUT pins in automated test equipment with tight timing margins.

IC Role / Device Role / Timing Role: Precision-controlled output stage with sub-5-ns propagation delay and minimal skew across channels.

Use Value: Guaranteed t_PLH/t_PHL ≤ 4.9 ns and low ground bounce (<1 V) ensure deterministic edge placement at 100-MHz update rates.

Use Scenario: Extending an aging 80C88-based SBC's address/data bus to support additional memory or peripheral cards.

IC Role / Device Role / Timing Role: TTL-compatible bus repeater restoring signal amplitude and timing after long trace runs.

Use Value: −32-mA/64-mA drive compensates for line losses; 0.55-V V_OL at full load meets TTL VIH minimum for downstream receivers.

Equivalent & Alternatives

The following parts are listed as comparable options for similar 10-bit noninverting bus driver applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74ABT244PW	Octal (8-bit), identical EPIC-II^B process, same PW package, slightly lower I_OL (48 mA)	Suitable where only 8 data lines require buffering; smaller footprint but reduced channel count	Select when bus width is ≤8 bits and board space is constrained
SN74LVC827APW	3.3-V only (1.65–3.6 V), lower drive (−24/24 mA), CMOS process, higher input capacitance (5 pF)	Requires level translation for 5-V systems; unsuitable for legacy TTL bus loading or noise immunity requirements	Choose only for new 3.3-V designs prioritizing ultra-low static power over drive strength

Compared with SN74ABT244PW and SN74LVC827APW, the SN74ABT827PW uniquely delivers 10-bit width, 5-V TTL compatibility, and 64-mA sink drive in a compact TSSOP - making it irreplaceable for legacy 5-V wide-bus interfaces requiring no voltage translation or redesign.

Availability

SN74ABT827PW is available at Aetrix Electronics and suitable for industrial control systems, test instrumentation, and legacy computing hardware requiring stable component supply, long-lifecycle support, and guaranteed 5-V TTL interoperability.

Supply support for SN74ABT827PW 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 specializing in analog, embedded processing, and logic solutions, with decades of heritage in high-reliability logic families.

The SN74ABT827PW belongs to TI's ABT advanced bi-directional bus transceiver family, engineered for high-speed, low-noise 5-V bus interfacing in mission-critical industrial and instrumentation systems.

FAQ

What is the maximum clock/data rate supported by the SN74ABT827PW?

The SN74ABT827PW does not operate on a clock; it is a combinatorial buffer. Its 4.9-ns maximum propagation delay (t_PLH/t_PHL) at 5 V and 50-pF load supports reliable data transfer up to approximately 100 MHz in synchronous bus applications, assuming setup/hold timing is managed by the controlling logic. The SN74ABT827PW's performance is load- and layout-dependent - actual usable rate requires validation with target trace capacitance and termination.

Does the SN74ABT827PW require external pull-up resistors on OE1 and OE2?

External pull-up resistors on OE1 and OE2 are recommended only if the driving source cannot guarantee a valid logic high (>2 V) when enabled. The SN74ABT827PW's inputs are TTL-compatible (V_IH = 2.0 V min), so direct connection to a 5-V CMOS or TTL output is sufficient. However, during power-up, tying OE to V_CC via a resistor ensures immediate high-impedance state above 2.1 V - a design choice dependent on system power sequencing. The SN74ABT827PW datasheet specifies minimum resistor value based on driver sink capability.

Can the SN74ABT827PW be used in a 3.3-V system?

No - the SN74ABT827PW is specified only for 4.5–5.5-V operation. Its input thresholds (V_IL = 0.8 V, V_VIH = 2.0 V) and output drive characteristics are optimized for 5-V TTL compatibility. Applying 3.3 V to V_CC violates recommended operating conditions and risks undefined output states, excessive ICC, or latch-up. For 3.3-V systems, consider the SN74LVC827APW instead. The SN74ABT827PW must be operated strictly within its 4.5–5.5-V V_CC range.

How does the SN74ABT827PW handle simultaneous switching of all 10 outputs?

The SN74ABT827PW mitigates simultaneous switching noise via EPIC-II^B BiCMOS design, achieving typical output ground bounce (V_OLP) < 1 V at V_CC = 5 V and T_A = 25°C. Its dedicated GND pin (pin 12) and flow-through layout reduce shared impedance. To maintain this performance, proper PCB design is essential: localized 0.1-µF ceramic decoupling at V_CC (pin 24), solid ground plane, and minimized output trace inductance. The SN74ABT827PW's specification assumes these practices.

Is the SN74ABT827PW pin-compatible with other 24-pin TSSOP logic devices?

Pin compatibility is limited to functionally identical 10-bit noninverting buffers with matching OE logic and flow-through pinout - such as the SN74ABT827PWR or SN74ABT827PWRG4 (same die, different packaging/reel options). It is not pin-compatible with octal buffers (e.g., SN74ABT244), inverters, or transceivers due to differing I/O assignments and control schemes. Always verify pin functions using the SN74ABT827PW top-view diagram - NC pins (5, 15, 16) and dual OE inputs (1, 13) are specific to this part. The SN74ABT827PW's pinout is unique to its 10-bit architecture.

SN74ABT827PW Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: 74ABT

Package/Case:: 24-TSSOP (0.173", 4.40mm Width)

Packaging:: Bulk

Product Status:: Active

Logic Type:: Buffer, Non-Inverting

Number of Elements:: 1

Number of Bits per Element:: 10

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:: 24-TSSOP

SN74ABT827PW FAQ

1.How can I place an order for SN74ABT827PW through Aetrix?

Please submit a Request for Quotation (RFQ) for SN74ABT827PW 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 SN74ABT827PW reliable?

The price and inventory of SN74ABT827PW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74ABT827PW is usually 5 days.

3.What payment methods are accepted for SN74ABT827PW?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74ABT827PW transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SN74ABT827PW?

SN74ABT827PW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SN74ABT827PW 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 SN74ABT827PW?

For technical support, including SN74ABT827PW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74ABT827PW requirements.

6.How does Aetrix verify that SN74ABT827PW is sourced from the original manufacturer or authorized distributors?

All SN74ABT827PW 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 SN74ABT827PW meets industry standards.

7.What is the process for return or replacement of SN74ABT827PW?

All SN74ABT827PW units undergo pre-shipment inspection (PSI). If there is an issue with SN74ABT827PW, 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 SN74ABT827PW part is unused and in its original packaging.

Return procedure for SN74ABT827PW:

1.Submit a request within 90 days.

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

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