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

Texas Instruments 74ACT16470DL

Name: 74ACT16470DL
Brand: Texas Instruments
SKU: 74ACT16470DL
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74ACT16470DL

Manufacturer:: Texas Instruments

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: -

Datasheet:: 74ACT16470DL.pdf

Description:: REGISTERED BUS TRANSCEIVER

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Product details

Overview

74ACT16470DL from Texas Instruments is a 16-bit registered transceiver IC in the Widebus™ family, featuring dual 8-bit or single 16-bit bidirectional data flow with independent A→B and B→A clocking (CLKAB/CLKBA), output-enable (OEAB/OEBA), and chip-enable (CEAB/CEBA) controls. It operates at 5 V, supports 55 MHz clock frequency, delivers ±24 mA drive strength, and is rated for −40°C to 85°C industrial temperature range - used in high-speed bus interface applications between microprocessors and peripheral logic.

For engineers reviewing the 74ACT16470DL datasheet, 74ACT16470DL pinout, 74ACT16470DL application, or 74ACT16470DL equivalent, this page provides verified functional identity, validated pin mapping for the DL package, confirmed timing and DC specs, real-world use cases in bus buffering and level translation, and two technically documented alternative parts with explicit differences.

Technical Context

The 74ACT16470DL implements two independent sets of D-type flip-flops - one for A-to-B and one for B-to-A data paths - each with dedicated control inputs enabling asynchronous direction management. Its flow-through architecture places inputs and outputs on opposite sides of the package to minimize trace crossovers and improve PCB layout efficiency.

Distributed V_CC and GND pins across the 56-pin shrink small-outline (DL) package reduce simultaneous switching noise, while EPIC™ 1-µm CMOS process ensures TTL-voltage-compatible inputs (V_IL = 0.8 V, V_IH = 2 V), 500-mA latch-up immunity at 125°C, and low input/output capacitance (C_i = 3 pF, C_io = 11.5 pF).

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage	4.5 V to 5.5 V - compatible with standard 5-V logic rails and tolerant of typical power rail variation.
Max Clock Frequency	55 MHz - enables high-speed synchronous data transfer between buses without external timing constraints.
Output Drive Strength	±24 mA - sufficient to drive multiple TTL loads or moderate-capacitance traces without external buffers.
Propagation Delay	t_PLH/t_PHL ≤ 11.8 ns - ensures sub-12-ns edge-to-edge latency for time-critical bus handshaking.
Operating Temperature	−40°C to +85°C - qualified for industrial environments including factory automation and telecom infrastructure.
Input Compatibility	TTL-voltage levels (V_IH = 2 V, V_IL = 0.8 V) - interoperable with legacy 74LS/TTL logic without level-shifting circuitry.
Package Type	56-pin shrink small-outline (DL), 300-mil width, 25-mil pin pitch - doubles I/O density vs. standard SOIC in same PCB area.

Pinout & Package

74ACT16470DL is housed in a 56-pin shrink small-outline (DL) package with 300-mil body width and 25-mil center-to-center pin spacing. Pin 1 is marked by a beveled corner; top view orientation follows standard JEDEC conventions.

Pin/Terminal	Circuit Role	Design Meaning
1OEAB, 2OEAB, 1OEBA, 2OEBA	Output Enable (active-low)	Individually disables A→B or B→A outputs to high-impedance state; enables tri-state bus sharing.
1CLKAB, 2CLKAB, 1CLKBA, 2CLKBA	Positive-edge clock inputs	Samples data on rising edge; separate clocks allow independent timing control per 8-bit channel.
1CEAB, 2CEAB, 1CEBA, 2CEBA	Chip Enable (active-low)	Gates clocked data flow; prevents false latching when CE transitions while CLK is high.
1A1–1A8, 2A1–2A8, 1B1–1B8, 2B1–2B8	Bidirectional data I/O ports	Two 8-bit ports per direction; A-side connects to source bus, B-side to destination bus.
V_CC (pins 7, 20, 39, 50)	Power supply	Distributed V_CC pins reduce IR drop and switching noise across high-speed operation.
GND (pins 4, 11, 27, 32, 46, 53)	Ground reference	Multiple ground pins provide low-inductance return paths and improve signal integrity.

Key Features

Feature	Design Value
Flow-through architecture	Inputs on one side, outputs on opposite side - eliminates layer jumps and reduces PCB routing complexity.
Dual independent 8-bit registers	Enables asymmetric data flow: e.g., 8-bit command path A→B and 8-bit status path B→A simultaneously.
Distributed V_CC/GND pinning	Minimizes simultaneous switching noise (SSN) and improves power integrity at 55 MHz operation.
TTL-input compatibility	Accepts standard TTL logic thresholds directly - eliminates need for external level translators in mixed-logic systems.
EPIC™ 1-µm CMOS process	Delivers high noise immunity (500-mA latch-up rating at 125°C) and stable performance across industrial temperature range.

Applications

Microprocessor Bus Interface	Memory Expansion Subsystem
Use Scenario: Interfacing an 80C188 microprocessor's multiplexed address/data bus to discrete SRAM and peripheral chips. IC Role / Device Role / Timing Role: Registered transceiver providing direction-controlled, clock-synchronized data latching between CPU and memory space. Use Value: Eliminates bus contention during read/write cycles via OE-controlled tristate outputs and CE-gated clock sampling.	Use Scenario: Expanding local memory capacity in a PLC controller using multiple 32K×8 SRAM modules. IC Role / Device Role / Timing Role: Bidirectional data register buffering address/data lines between memory controller and parallel memory banks. Use Value: Enables clean separation of A→B (address-out) and B→A (data-in) paths with independent timing control per 8-bit lane.
Industrial Backplane Data Link	Digital I/O Module Isolation
Use Scenario: High-speed data exchange between CPU module and I/O carrier board over a 16-bit parallel backplane. IC Role / Device Role / Timing Role: Registered transceiver managing synchronized, noise-resilient data transfer across long PCB traces. Use Value: Distributed power/ground pins and flow-through layout suppress crosstalk and maintain signal fidelity at 55 MHz.	Use Scenario: Isolating field-side digital inputs/outputs from controller logic in a modular I/O rack. IC Role / Device Role / Timing Role: Directional data buffer with independent enable controls for input sampling and output driving. Use Value: Prevents metastability and bus conflicts via CE-synchronized latching and OE-controlled output isolation.

Microprocessor Bus Interface

Memory Expansion Subsystem

Use Scenario: Interfacing an 80C188 microprocessor's multiplexed address/data bus to discrete SRAM and peripheral chips.

IC Role / Device Role / Timing Role: Registered transceiver providing direction-controlled, clock-synchronized data latching between CPU and memory space.

Use Value: Eliminates bus contention during read/write cycles via OE-controlled tristate outputs and CE-gated clock sampling.

Use Scenario: Expanding local memory capacity in a PLC controller using multiple 32K×8 SRAM modules.

IC Role / Device Role / Timing Role: Bidirectional data register buffering address/data lines between memory controller and parallel memory banks.

Use Value: Enables clean separation of A→B (address-out) and B→A (data-in) paths with independent timing control per 8-bit lane.

Industrial Backplane Data Link

Digital I/O Module Isolation

Use Scenario: High-speed data exchange between CPU module and I/O carrier board over a 16-bit parallel backplane.

IC Role / Device Role / Timing Role: Registered transceiver managing synchronized, noise-resilient data transfer across long PCB traces.

Use Value: Distributed power/ground pins and flow-through layout suppress crosstalk and maintain signal fidelity at 55 MHz.

Use Scenario: Isolating field-side digital inputs/outputs from controller logic in a modular I/O rack.

IC Role / Device Role / Timing Role: Directional data buffer with independent enable controls for input sampling and output driving.

Use Value: Prevents metastability and bus conflicts via CE-synchronized latching and OE-controlled output isolation.

Equivalent & Alternatives

The following parts are listed as comparable options for similar registered transceiver applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
74ACT16245DL	Non-latched, octal transceiver (no internal registers); lacks CLK/CE inputs - only OE-controlled direction.	Used where handshake-free, transparent data flow suffices; unsuitable for clock-synchronized bus arbitration.	Select 74ACT16245DL only if timing-critical registration is unnecessary and lower propagation delay (<8 ns) is prioritized.
SN74LVTH16245ADL	Lower-voltage (3.3 V) LVT logic; higher drive (±64 mA); no TTL input compatibility - requires level shifting for 5-V systems.	Targeted at mixed-voltage 3.3-V/5-V interfaces; not drop-in replaceable due to incompatible input thresholds and V_CC range.	Choose SN74LVTH16245ADL only when migrating to 3.3-V core logic and adding external level shifters is acceptable.

Compared with 74ACT16470DL, 74ACT16245DL offers faster transparent transfer but no clocked registration, while SN74LVTH16245ADL supports higher drive and 3.3-V operation but sacrifices 5-V TTL compatibility and requires voltage translation - making 74ACT16470DL uniquely suited for legacy 5-V registered bus expansion.

Availability

74ACT16470DL is available at Aetrix Electronics and suitable for industrial control systems, telecom line cards, and embedded computing platforms requiring stable component supply, long-term lifecycle support, and guaranteed authentic TI sourcing.

Supply support for 74ACT16470DL 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, and logic solutions for industrial, automotive, and communications markets.

The 74ACT16470DL belongs to TI's Widebus™ family of high-speed registered transceivers, designed specifically for noise-immune, high-density parallel bus interfacing in industrial and telecom equipment.

FAQ

What is the maximum operating frequency of the 74ACT16470DL?

The 74ACT16470DL supports a maximum clock frequency of 55 MHz under recommended operating conditions (V_CC = 5 V ± 0.5 V, T_A = −40°C to +85°C). This value is specified in the timing requirements table of the SCAS237A datasheet and reflects guaranteed performance across the full industrial temperature range - not a typical-only or derated figure.

Does the 74ACT16470DL support TTL-level inputs?

Yes, the 74ACT16470DL features TTL-voltage-compatible inputs with V_IL = 0.8 V (max) and V_IH = 2 V (min), allowing direct connection to standard 74LS, 74F, and other TTL-family outputs without level-shifting circuitry. This compatibility is explicitly stated in the device description and confirmed in the recommended operating conditions table.

What is the pin count and package type of the 74ACT16470DL?

The 74ACT16470DL uses a 56-pin shrink small-outline (DL) package with 300-mil body width and 25-mil center-to-center pin spacing. This is clearly indicated in the datasheet's package diagram and "Package Options" section, distinguishing it from the WD ceramic flat package used for the military-grade 54ACT16470 variant.

Can the 74ACT16470DL be used as two independent 8-bit transceivers?

Yes, the 74ACT16470DL contains two fully independent 8-bit registered transceiver sections (labeled "1" and "2"), each with dedicated CLKAB/CLKBA, OEAB/OEBA, and CEAB/CEBA controls. The function table and logic diagram confirm separate operation - enabling simultaneous A→B and B→A transfers on distinct 8-bit lanes without interference.

What is the supply current consumption of the 74ACT16470DL at 5 V?

At V_CC = 5.5 V and T_A = 25°C, the 74ACT16470DL exhibits a typical supply current (I_CC) of 8 µA and a maximum of 80 µA under static conditions (all inputs at V_CC or GND, outputs unloaded). Dynamic current increases with switching activity and load capacitance, as quantified by the power dissipation capacitance (C_pd = 59 pF enabled, 39 pF disabled).

74ACT16470DL 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:: -

74ACT16470DL FAQ

1.How can I place an order for 74ACT16470DL through Aetrix?

Please submit a Request for Quotation (RFQ) for 74ACT16470DL 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 74ACT16470DL reliable?

The price and inventory of 74ACT16470DL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ACT16470DL is usually 5 days.

3.What payment methods are accepted for 74ACT16470DL?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ACT16470DL transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74ACT16470DL?

74ACT16470DL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74ACT16470DL 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 74ACT16470DL?

For technical support, including 74ACT16470DL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ACT16470DL requirements.

6.How does Aetrix verify that 74ACT16470DL is sourced from the original manufacturer or authorized distributors?

All 74ACT16470DL 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 74ACT16470DL meets industry standards.

7.What is the process for return or replacement of 74ACT16470DL?

All 74ACT16470DL units undergo pre-shipment inspection (PSI). If there is an issue with 74ACT16470DL, 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 74ACT16470DL part is unused and in its original packaging.

Return procedure for 74ACT16470DL:

1.Submit a request within 90 days.

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

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