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

Texas Instruments 74ACT11827DWR

Name: 74ACT11827DWR
Brand: Texas Instruments
SKU: 74ACT11827DWR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74ACT11827DWR

Manufacturer:: Texas Instruments

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: -

Datasheet:: 74ACT11827DWR.pdf

Description:: BUS DRIVER, ACT SERIES, 10-BIT

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Product details

Overview

74ACT11827DWR from Texas Instruments is a 10-bit inverting buffer/bus driver with 3-state outputs, TTL-voltage-compatible inputs, and flow-through pinout optimized for wide data bus or parity bus interface. It operates from −40°C to 85°C at 4.5–5.5 V, delivers ±24 mA output drive, and features center-pin V_CC/GND configuration to suppress high-speed switching noise.

For engineers reviewing the 74ACT11827DWR datasheet, 74ACT11827DWR pinout, 74ACT11827DWR application, or 74ACT11827DWR equivalent, key selection criteria include its inverted logic function, dual-enable 2-input NOR gate control, 3.8 ns typical t_PLH, 10-pin input/output symmetry, and DW package compatibility with standard 28-pin SOIC footprints.

Technical Context

This device implements a 10-bit inverting buffer with independent 3-state control via a 2-input NOR gate (G1, G2): either input high forces all Y outputs into high-impedance. Its flow-through architecture aligns A1–A10 and Y1–Y10 on opposite sides of the package to minimize trace crossovers.

Manufactured in TI's EPIC (Enhanced-Performance Implanted CMOS) 1-µm process, it achieves 500-mA latch-up immunity at 125°C and supports bus-hold-free operation with TTL-compatible VIH/VIL thresholds (2.0 V/0.8 V) while maintaining CMOS-level power efficiency.

Key Specifications

Parameter	Value and Actual Design Meaning
Logic Function	Inverting 10-bit buffer with 3-state outputs
Supply Voltage	4.5 V to 5.5 V - compatible with standard 5-V TTL/CMOS systems
Output Drive	±24 mA - sufficient to drive 50-Ω transmission lines or multiple TTL loads
Propagation Delay	t_PLH = 3.8 ns (typ), t_PHL = 2.7 ns (typ) - enables >100 MHz bus operation
Input Compatibility	TTL-voltage level (VIH = 2.0 V, VIL = 0.8 V) - interoperable with legacy 74LS/74F logic
Operating Temperature	−40°C to +85°C - qualified for commercial and industrial ambient environments
Power Dissipation	C_pd = 35 pF (enabled), 10 pF (disabled) - low dynamic power for high-frequency toggling

Pinout & Package

74ACT11827DWR is supplied in a 28-pin plastic small-outline (SOIC) package (DW package), with 300-mil width and standard JEDEC MS-013AC footprint. Pin 1 is located at the top-left corner with index mark, and V_CC/GND are distributed across center pins (pins 15, 16, 27, 28 for V_CC; pins 10, 11, 12, 13 for GND) to reduce ground bounce.

Pin/Terminal	Circuit Role	Design Meaning
1–10, 17–26 (A1–A10)	Data inputs	Inverted logic inputs driving corresponding Y outputs; TTL-compatible thresholds
1–10, 17–26 (Y1–Y10)	3-state buffered outputs	Inverted outputs; high-impedance when G1 or G2 is high
14, 27 (G1, G2)	3-state enable inputs	NOR logic: either high disables all outputs - supports shared bus arbitration
10–13, 15, 16, 27, 28	V_CC / GND terminals	Multiple V_CC and GND pins centered to minimize simultaneous switching noise

Key Features

Feature	Design Value
Flow-through pinout	A1–A10 and Y1–Y10 arranged on opposing long edges - eliminates layer jumps and reduces PCB routing complexity
Center-pin V_CC/GND	Four GND and four V_CC pins clustered near package center - lowers inductance and suppresses ground bounce
EPIC 1-µm CMOS process	Enables 500-mA latch-up immunity at 125°C - suitable for harsh thermal environments without external protection
TTL-compatible inputs	VIH = 2.0 V, VIL = 0.8 V - allows direct interfacing with 74LS, 74F, and microcontroller GPIO without level shifters
Inverted output logic	Y = NOT(A) with 3-state control - supports active-low bus enable schemes and complements non-inverting drivers in mixed designs

Applications

Memory Address Buffering	Wide Data Bus Interface
Use Scenario: Driving 10-bit memory address lines from a microprocessor or FPGA in a 16-bit or wider memory subsystem. IC Role / Device Role / Timing Role: Inverting address buffer with 3-state control synchronized to memory read/write strobes. Use Value: Flow-through layout minimizes trace skew between A and Y signals; ±24 mA drive ensures clean edge integrity across 6-inch PCB traces.	Use Scenario: Isolating and buffering parity bits across a 10-bit parallel data path in industrial I/O backplanes. IC Role / Device Role / Timing Role: Parity bus driver enabling/disabling via shared G1/G2 control lines during bus arbitration cycles. Use Value: Dual-enable NOR gate allows flexible bus ownership handoff without additional logic; center-pin power distribution maintains signal integrity under burst traffic.
Legacy System Logic Upgrade	High-Noise Industrial Control Bus
Use Scenario: Replacing obsolete 74ALS/74F buffers in aging test equipment where TTL input compatibility is mandatory. IC Role / Device Role / Timing Role: Drop-in logic upgrade delivering CMOS power efficiency while retaining identical pinout and voltage thresholds. Use Value: Identical VIH/VIL and 28-pin DW footprint enables zero-change board replacement; 3.8 ns t_PLH exceeds original ALS performance.	Use Scenario: Interfacing programmable logic controllers (PLCs) to noisy sensor/actuator buses in factory automation cabinets. IC Role / Device Role / Timing Role: Noise-immune bus driver isolating field-side signals from controller logic using controlled 3-state transitions. Use Value: 500-mA latch-up immunity and distributed GND/V_CC pins prevent upset from EFT bursts; t_PZL/t_PZH < 12 ns ensures fast bus release during fault recovery.

Memory Address Buffering

Wide Data Bus Interface

Use Scenario: Driving 10-bit memory address lines from a microprocessor or FPGA in a 16-bit or wider memory subsystem.

IC Role / Device Role / Timing Role: Inverting address buffer with 3-state control synchronized to memory read/write strobes.

Use Value: Flow-through layout minimizes trace skew between A and Y signals; ±24 mA drive ensures clean edge integrity across 6-inch PCB traces.

Use Scenario: Isolating and buffering parity bits across a 10-bit parallel data path in industrial I/O backplanes.

IC Role / Device Role / Timing Role: Parity bus driver enabling/disabling via shared G1/G2 control lines during bus arbitration cycles.

Use Value: Dual-enable NOR gate allows flexible bus ownership handoff without additional logic; center-pin power distribution maintains signal integrity under burst traffic.

Legacy System Logic Upgrade

High-Noise Industrial Control Bus

Use Scenario: Replacing obsolete 74ALS/74F buffers in aging test equipment where TTL input compatibility is mandatory.

IC Role / Device Role / Timing Role: Drop-in logic upgrade delivering CMOS power efficiency while retaining identical pinout and voltage thresholds.

Use Value: Identical VIH/VIL and 28-pin DW footprint enables zero-change board replacement; 3.8 ns t_PLH exceeds original ALS performance.

Use Scenario: Interfacing programmable logic controllers (PLCs) to noisy sensor/actuator buses in factory automation cabinets.

IC Role / Device Role / Timing Role: Noise-immune bus driver isolating field-side signals from controller logic using controlled 3-state transitions.

Use Value: 500-mA latch-up immunity and distributed GND/V_CC pins prevent upset from EFT bursts; t_PZL/t_PZH < 12 ns ensures fast bus release during fault recovery.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
74ACT11826DWR	Non-inverting 10-bit buffer; otherwise identical pinout, timing, and electrical specs	Used where signal polarity must be preserved (e.g., address mirroring, non-complementing bus extensions)	Select 74ACT11826DWR when inversion is not required; same DW package and layout compatibility
SN74ACT11244DW	Two independent 4-bit non-inverting buffers (8 total), different pinout, no G1/G2 NOR control	Suited for segmented or split-bus architectures requiring separate enable per group	Choose SN74ACT11244DW only if modular 4-bit control is needed; not pin-compatible with 74ACT11827DWR

Compared with 74ACT11827DWR, the 74ACT11826DWR offers identical drive strength and timing but preserves input polarity, while the SN74ACT11244DW provides finer-grained 4-bit control at the cost of incompatible pin mapping and missing dual-NOR enable logic - making the former a functional substitute and the latter a system-level architectural alternative.

Availability

74ACT11827DWR is available at Aetrix Electronics and suitable for memory subsystem design, industrial backplane interfacing, legacy logic upgrades, and high-noise control bus applications requiring stable component supply and long-term obsolescence management.

Supply support for 74ACT11827DWR 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 founded in 1930, specializing in analog, embedded processing, logic, and power management ICs for industrial, automotive, and communications markets.

The 74ACT11827DWR belongs to TI's advanced CMOS (ACT) logic family, designed specifically for high-speed, low-noise bus interface in commercial and industrial systems requiring TTL compatibility and robust latch-up immunity.

FAQ

What is the logic function of the 74ACT11827DWR?

The 74ACT11827DWR is a 10-bit inverting buffer with 3-state outputs. Each Y output equals the logical inverse of its corresponding A input (Yn = NOT An), and all outputs enter high-impedance when either G1 or G2 is high. This behavior is defined in the device's function table and confirmed by its logic diagram in the SCAS078 datasheet.

Does the 74ACT11827DWR support 3.3-V operation?

No, the 74ACT11827DWR is specified only for 4.5 V to 5.5 V supply operation per its recommended operating conditions. It does not guarantee functionality or DC parameters at 3.3 V, and attempting to operate outside this range may result in undefined behavior or damage.

What is the purpose of the dual-enable NOR gate (G1/G2) on the 74ACT11827DWR?

The dual-enable NOR gate allows either G1 or G2 high to place all ten outputs in high-impedance state - enabling flexible bus arbitration in multi-master systems. This design eliminates need for external OR logic and simplifies control signaling compared to single-enable buffers like the 74ACT244.

Is the 74ACT11827DWR pin-compatible with the 54ACT11827 variant?

Yes - both 74ACT11827DWR and 54ACT11827 share identical DW package pinout and terminal assignments. The difference lies solely in temperature rating: 74ACT11827DWR is rated for −40°C to +85°C, while 54ACT11827 covers −55°C to +125°C; electrical timing and DC specs are otherwise aligned.

How does the flow-through architecture benefit PCB layout for the 74ACT11827DWR?

The flow-through architecture places A1–A10 on one long edge and Y1–Y10 on the opposite edge, allowing straight-line routing with minimal vias or layer changes. This reduces trace length mismatch, lowers crosstalk risk, and improves signal integrity in high-speed parallel bus implementations - a key advantage over traditional folded layouts.

74ACT11827DWR Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: *

Package/Case:: -

Packaging:: Bulk

Product Status:: Active

Logic Type:: -

Number of Elements:: -

Number of Bits per Element:: -

Input Type:: -

Output Type:: -

Current - Output High, Low:: -

Voltage - Supply:: -

Operating Temperature:: -

Grade:: -

Qualification:: -

Mounting Type:: -

Supplier Device Package:: -

74ACT11827DWR FAQ

1.How can I place an order for 74ACT11827DWR through Aetrix?

Please submit a Request for Quotation (RFQ) for 74ACT11827DWR 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 74ACT11827DWR reliable?

The price and inventory of 74ACT11827DWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ACT11827DWR is usually 5 days.

3.What payment methods are accepted for 74ACT11827DWR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ACT11827DWR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74ACT11827DWR?

74ACT11827DWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74ACT11827DWR 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 74ACT11827DWR?

For technical support, including 74ACT11827DWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ACT11827DWR requirements.

6.How does Aetrix verify that 74ACT11827DWR is sourced from the original manufacturer or authorized distributors?

All 74ACT11827DWR 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 74ACT11827DWR meets industry standards.

7.What is the process for return or replacement of 74ACT11827DWR?

All 74ACT11827DWR units undergo pre-shipment inspection (PSI). If there is an issue with 74ACT11827DWR, 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 74ACT11827DWR part is unused and in its original packaging.

Return procedure for 74ACT11827DWR:

1.Submit a request within 90 days.

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

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