My Inquiry
My Account
Texas Instruments SN74ABT16470DL
- Part No.:
- SN74ABT16470DL
- Manufacturer:
- Texas Instruments
- Package:
- 56-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
SN74ABT16470DL.pdf
- Description:
- IC TXRX NON-INVERT 5.5V 56SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,136
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SN74ABT16470DL from Texas Instruments is a 16-bit registered transceiver with 3-state outputs, designed for high-speed bidirectional data buffering in bus interface applications. It features dual 8-bit registers (A↔B), independent clock enable (CLKENAB/CLKENBA), output-enable (OEAB/OEBA), and high-drive capability (–32 mA IOH, 64 mA IOL) at 5 V. Used in backplane and motherboard data routing where latch-controlled flow-through timing and noise-immune PCB layout are critical.
For engineers reviewing the SN74ABT16470DL datasheet, SN74ABT16470DL pinout, SN74ABT16470DL application, or SN74ABT16470DL equivalent, key selection criteria include its 56-pin SSOP (DL) package, –40°C to 85°C industrial temperature range, 150 MHz max clock frequency, and distributed VCC/GND pin architecture for low ground bounce (<1 V VOLP).
Technical Context
The SN74ABT16470DL implements two independent 8-bit D-type flip-flop banks-one for A-to-B and one for B-to-A data flow-each with dedicated clock (CLKAB/CLKBA), clock enable (CLKENAB/CLKENBA), and output-enable (OEAB/OEBA) controls. Its EPIC-IIB BiCMOS process enables high-speed switching while maintaining low power dissipation and robust latch-up immunity (>500 mA per JESD-17).
It supports flow-through architecture with distributed power/ground pins to minimize simultaneous switching noise, and requires OE tied to VCC via pullup resistor during power-up/down to guarantee high-impedance state. Input transition rate is specified at ≤10 ns/V, and all unused inputs must be held static (high or low) to prevent floating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5 V to 5.5 V - ensures compatibility with standard 5-V TTL and CMOS logic domains. |
| Max Clock Frequency | 150 MHz - supports high-throughput synchronous bus transfer without setup/hold violations. |
| Output Drive | –32 mA IOH / 64 mA IOL - drives heavy capacitive loads and multiple TTL inputs without external buffers. |
| Propagation Delay | tPLH/tPHL ≤ 4.9 ns (VCC = 5 V, CL = 50 pF) - enables sub-5-ns timing margins in fast control-path designs. |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded systems and communications equipment. |
| Package | 56-pin SSOP (DL), 300-mil body width - surface-mount compatible with standard reflow profiles (MSL Level-1). |
| Ground Bounce (VOLP) | <1 V at VCC = 5 V, TA = 25°C - reduces signal integrity risk in dense multi-transceiver layouts. |
Pinout & Package
SN74ABT16470DL uses a 56-pin Shrink Small-Outline Package (SSOP-DL) with 0.5-mm pitch, 13.9 mm × 7.9 mm body, and 1.2 mm max height. Pin 1 identifier located at top-left corner with seating plane reference.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OEAB, 2OEAB, 1OEBA, 2OEBA | Output Enable (active-low) | Individually disables 8-bit A→B or B→A output drivers into high-impedance state; critical for bus arbitration. |
| 1CLKAB, 2CLKAB, 1CLKBA, 2CLKBA | Register Clock (rising-edge triggered) | Loads data from A or B ports into respective 8-bit D-flip-flop banks on positive clock edge. |
| 1CLKENAB, 2CLKENAB, 1CLKENBA, 2CLKENBA | Clock Enable (active-high) | Gates clock propagation to flip-flops; prevents false triggering when CLK transitions while CLKEN is low. |
| 1A1–1A8, 2A1–2A8, 1B1–1B8, 2B1–2B8 | Bi-directional Data I/O Ports | Two independent 8-bit port groups (A and B); each pin serves as input or 3-state output depending on direction control. |
| VCC (pins 7, 22, 37, 50) | Power Supply | Distributed VCC pins reduce IR drop and supply noise across the 16-bit data path. |
| GND (pins 4, 11, 25, 32, 46, 53) | Ground Reference | Six GND pins strategically placed to minimize ground bounce and improve return current path integrity. |
Key Features
| Feature | Design Value |
|---|---|
| Flow-through architecture | Input-to-output signal path avoids internal routing bottlenecks, enabling optimal PCB trace routing and reduced layer count. |
| Distributed VCC/GND pinning | Four VCC and six GND pins suppress high-speed switching noise and maintain stable rail integrity across full 16-bit width. |
| High-drive 3-state outputs | –32 mA IOH / 64 mA IOL allows direct interfacing with up to 10 standard TTL loads or long PCB traces without fanout buffers. |
| Latch-up immunity | Exceeds 500 mA per JEDEC JESD-17 - ensures robust operation in noisy industrial environments with transient coupling. |
| Low ground bounce (VOLP) | <1 V at 5 V/25°C - preserves signal integrity in multi-device parallel bus configurations with simultaneous output switching. |
Applications
| Backplane Data Routing | Industrial PLC I/O Expansion |
|---|---|
|
Use Scenario: Bidirectional data transfer between CPU module and peripheral slots in modular rack-based controllers. IC Role / Device Role / Timing Role: Registered transceiver providing synchronized, glitch-free handshaking between asynchronous subsystems using separate A/B clocks and OE controls. Use Value: Flow-through pinout and distributed power pins reduce inter-slot skew and crosstalk, enabling reliable 150 MHz burst transfers over 20-cm backplane traces. |
Use Scenario: Isolating and buffering digital I/O signals between microcontroller and field-side relay/digital input modules. IC Role / Device Role / Timing Role: 16-bit registered buffer with independent OE and CLKEN per 8-bit bank, allowing staggered sampling and output update cycles. Use Value: High noise immunity (500 mA latch-up rating) and –40°C to 85°C operation ensure reliability in electrically harsh factory-floor environments. |
| Memory-Mapped Peripheral Interface | Legacy Bus Bridge (e.g., ISA-to-PCIe) |
|
Use Scenario: Interfacing an FPGA-based memory controller to legacy SRAM or flash devices with strict timing windows. IC Role / Device Role / Timing Role: Registered transceiver latching address/data on rising CLKAB/CLKBA edges, decoupling master timing from slave device latency. Use Value: Sub-5 ns propagation delay and 4 ns setup/1 ns hold time support tight 150 MHz bus cycles without added wait states. |
Use Scenario: Protocol translation layer between modern high-speed host interface and legacy 8/16-bit parallel bus peripherals. IC Role / Device Role / Timing Role: Dual 8-bit register bank acting as synchronous FIFO staging point, absorbing timing mismatches between domains. Use Value: Independent CLKEN and OE per direction allow precise control of data staging, preventing bus contention during protocol handshakes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar registered transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ABT162245DL | Non-registered 16-bit transceiver; no internal flip-flops; only 3-state control. | Suitable for simple level-shifting or bus isolation without timing synchronization. | Select when clocked registration is unnecessary and lower propagation delay (≤3.5 ns) is prioritized over data staging. |
| SN74LVC16T245DGGR | 3.3-V tolerant, dual-supply (1.65–5.5 V), no internal registers, lower drive (–24/24 mA). | Used in mixed-voltage systems requiring voltage translation between 3.3 V and 5 V domains. | Choose for 3.3-V logic compatibility and lower power; not suitable for 150 MHz registered operation or industrial temp range. |
Compared with SN74ABT16470DL, SN74ABT162245DL eliminates clocked storage but improves raw speed and reduces complexity, while SN74LVC16T245DGGR trades registration and industrial temperature rating for voltage flexibility and lower static current - neither matches the SN74ABT16470DL's combination of 150 MHz registered throughput, 5-V drive strength, and –40°C to 85°C qualification.
Availability
SN74ABT16470DL is available at Aetrix Electronics and suitable for industrial control systems, backplane interconnects, and memory-mapped peripheral interfaces requiring stable component supply across extended lifecycle programs.
Supply support for SN74ABT16470DL 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 interface ICs.
The SN74ABT16470DL belongs to TI's Widebus™ family of high-speed bus interface devices, engineered for noise-resilient, high-throughput data routing in industrial and computing infrastructure.
FAQ
What is the maximum operating frequency of the SN74ABT16470DL?
The SN74ABT16470DL supports a maximum clock frequency of 150 MHz under recommended operating conditions (VCC = 5 V, TA = 25°C). This value is characterized and applies to both CLKAB and CLKBA inputs. At full industrial temperature range (–40°C to 85°C), timing margins remain compliant per the datasheet's switching characteristics table with CL = 50 pF.
Does the SN74ABT16470DL require external pull-up resistors on OE pins?
Yes - to ensure a defined high-impedance state during power-up or power-down, each OE pin (1OEAB, 2OEAB, 1OEBA, 2OEBA) must be tied to VCC through a pull-up resistor. The minimum resistance value depends on the current-sinking capability of the driving source; TI recommends verifying against the specific control logic's output low voltage and sink current specs.
Can the SN74ABT16470DL be used as two independent 8-bit transceivers?
Yes - the SN74ABT16470DL contains two fully independent 8-bit registered transceiver sections: one for A1–A8 ↔ B1–B8 (controlled by CLKAB/OEAB/CLKENAB) and another for A9–A16 ↔ B9–B16 (controlled by CLKBA/OEBA/CLKENBA). Each section operates synchronously but can be clocked and enabled separately for flexible data partitioning.
What is the thermal performance of the SN74ABT16470DL in its DL package?
The SN74ABT16470DL in the 56-pin SSOP (DL) package has a junction-to-ambient thermal impedance (θJA) of 74°C/W, measured per EIA/JEDEC Std JESD51. This value assumes standard JEDEC 2S2P test board conditions and supports continuous operation at full drive strength within its –40°C to 85°C ambient range when PCB copper area and airflow meet typical industrial layout guidelines.
Is the SN74ABT16470DL pin-compatible with other Widebus™ transceivers like the SN74ABT162245?
No - the SN74ABT16470DL is not pin-compatible with SN74ABT162245 or other members of the Widebus™ family. Its 56-pin DL package includes dedicated clock enable (CLKEN), dual-clock (CLKAB/CLKBA), and dual-OE signals not present on non-registered transceivers. Pin mapping, function allocation, and power pin distribution differ fundamentally due to the internal register architecture.
SN74ABT16470DL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74ABT
- Package/Case:
- 56-BSSOP (0.295", 7.50mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- Transceiver, Non-Inverting
- Number of Elements:
- 2
- Number of Bits per Element:
- 8
- 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:
- 56-SSOP
SN74ABT16470DL FAQ
1.How can I place an order for SN74ABT16470DL through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74ABT16470DL 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 SN74ABT16470DL reliable?
The price and inventory of SN74ABT16470DL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74ABT16470DL is usually 5 days.
3.What payment methods are accepted for SN74ABT16470DL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74ABT16470DL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74ABT16470DL?
SN74ABT16470DL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74ABT16470DL 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 SN74ABT16470DL?
For technical support, including SN74ABT16470DL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74ABT16470DL requirements.
6.How does Aetrix verify that SN74ABT16470DL is sourced from the original manufacturer or authorized distributors?
All SN74ABT16470DL 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 SN74ABT16470DL meets industry standards.
7.What is the process for return or replacement of SN74ABT16470DL?
All SN74ABT16470DL units undergo pre-shipment inspection (PSI). If there is an issue with SN74ABT16470DL, 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 SN74ABT16470DL part is unused and in its original packaging.
Return procedure for SN74ABT16470DL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SN74ABT16470DL Tags
-
SN74LVC1G17DBVR
Texas Instruments
-
SN74LVC1G07DCKR
Texas Instruments
-
SN74LVC1G17DCKR
Texas Instruments
-
SN74LVC1G07DBVR
Texas Instruments
-
SN74LVC1G125DCKR
Texas Instruments
-
SN74AHCT1G126DBVR
Texas Instruments
-
SN74LVC1G125DBVR
Texas Instruments
-
SN74AHCT1G125DBVR
Texas Instruments
-
SN74LVC2G17DBVR
Texas Instruments
-
SN74LVC2G07DCKR
Texas Instruments
-
SN74LVC1G34DCKR
Texas Instruments
-
SN74LVC2G17DCKR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
