Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Integrated Circuits (ICs) > Logic > Translators, Level Shifters

Texas Instruments SN74GTLP1394DGVR

Name: SN74GTLP1394DGVR
Brand: Texas Instruments
SKU: SN74GTLP1394DGVR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: SN74GTLP1394DGVR

Manufacturer:: Texas Instruments

Category:: Translators, Level Shifters

Package:

Datasheet:: SN74GTLP1394DGVR.pdf

Description:: IC TRANSLATOR BIDIR 16TVSOP

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:4,382

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

SN74GTLP1394DGVR from Texas Instruments is a 2-bit LVTTL-to-GTLP adjustable-edge-rate bus transceiver with split LVTTL port, feedback path, and selectable polarity. It provides bidirectional level translation between 3.3-V LVTTL logic (5-V tolerant) and 1.5-V GTLP backplane signals, delivers 100 mA GTLP output drive, supports live insertion via Ioff/BIAS VCC/power-up 3-state, and enables incident-wave switching on backplanes with ≥11 Ω equivalent load impedance - deployed in IEEE 1394 backplane physical-layer interfaces for VME/FB+/CPCI systems.

For engineers reviewing the SN74GTLP1394DGVR datasheet, SN74GTLP1394DGVR pinout, SN74GTLP1394DGVR application, or SN74GTLP1394DGVR equivalent, key selection criteria include GTLP edge-rate control (ERC), BIAS VCC precharge for hot-plug, split A/Y/B port topology for diagnostics feedback, polarity-selectable true/complementary mode, and TVSOP-24 (DGV) package thermal performance (θJA = 120°C/W).

Technical Context

The SN74GTLP1394DGVR implements a dual-path transceiver architecture: A-port and Y-port operate at LVTTL levels (VIH = 2 V, VIL = 0.8 V, 5-V tolerant), while B-port operates at GTLP levels (VTT = 1.5 V, VREF = 1 V). Its TI-OPC™ circuitry actively limits overshoot on unevenly loaded backplanes, and OEC™ circuitry reduces EMI and bus settling time.

Edge-rate control is implemented via ERC input (GND = slow, VCC = fast), adjusting B-port rise/fall times to 1.2–2.0 ns (fast) or 2.0–2.5 ns (slow) under distributed RLC load. Polarity control (T/C) selects true or complementary data flow in both directions, and separate OEAB/OEBY enables independent B-port and Y-port gating - supporting transparent/inverted modes with feedback path for real-time diagnostics monitoring.

Key Specifications

Parameter	Value and Actual Design Meaning
Logic Family	GTLP/LVTTL dual-voltage transceiver - translates between 3.3-V LVTTL control/data and 1.5-V GTLP backplane signaling.
Drive Strength	100 mA GTLP sink current (B-port) - enables incident-wave switching on heavily loaded backplanes down to 11 Ω.
Edge-Rate Control	Adjustable via ERC pin: fast mode (tr/tf ≈ 1.2/1.8 ns), slow mode (tr/tf ≈ 2.0/2.5 ns) - optimizes signal integrity vs. data rate trade-off.
Live Insertion Support	Ioff, power-up 3-state, and BIAS VCC - prevents current backflow, driver conflict, and backplane disturbance during card insertion/removal.
Input Tolerance	LVTTL inputs (A1/A2/OEAB/OEBY/T/C/ERC) tolerate 0–5.5 V - compatible with TTL, 5-V CMOS, and mixed-supply systems.
Package	TVSOP-24 (DGV) - 4.4 mm × 5.0 mm body, 0.65 mm pitch, θJA = 120°C/W - suitable for high-density backplane card layouts.
Operating Temperature	–40°C to +85°C - qualified for industrial embedded and telecom backplane environments.

Pinout & Package

SN74GTLP1394DGVR is housed in a 24-pin TVSOP (Thin Very Small Outline Package) with 0.65 mm lead pitch, 4.4 mm × 5.0 mm body size, and exposed pad not present. Pin numbering follows standard DGV top-view orientation (pin 1 at top-left corner, counterclockwise).

Pin/Terminal	Circuit Role	Design Meaning
1, 8, 15	GND	Ground reference for LVTTL logic and BIAS VCC circuitry - three dedicated GND pins reduce ground bounce in high-speed switching.
2, 4	B1, B2	GTLP differential data/strobe outputs - driven at 1.5-V GTLP levels with adjustable edge rate and TI-OPC™ overshoot suppression.
3, 5, 6, 7, 10, 11, 12, 13, 14, 16	A1, A2, Y1, Y2, VREF, VCC, OEAB, OEBY, T/C, ERC	LVTTL-level control and interface pins - A1/A2 accept 5-V-tolerant inputs; Y1/Y2 deliver ±24 mA LVTTL outputs; VREF sets B-port input threshold; OEAB/OEBY enable B/Y ports independently; T/C selects polarity; ERC configures edge rate.
9	VCC	3.3-V supply for LVTTL logic core - must be ramped after BIAS VCC for live-insertion compliance.
17–24	Not assigned	No terminals - TVSOP-24 package has only 16 active pins; remaining positions are blank (no internal connection).

Key Features

Feature	Design Value
Adjustable Edge-Rate Control (ERC)	Two discrete slew-rate settings (fast/slow) via single ERC voltage input - eliminates need for external RC networks and enables system-level tuning of GTLP timing margins.
Split LVTTL Port with Feedback Path	Separate A (input) and Y (output) pins per channel - allows real-time loopback monitoring of transceiver operation without interrupting B-port backplane traffic.
TI-OPC™ Overshoot Suppression	Active circuitry limiting low-to-high transition overshoot on unterminated or unevenly loaded backplanes - maintains noise margin at 50–100 Mbps without external termination tuning.
BIAS VCC Live-Insertion Precharge	Dedicated BIAS VCC pin preconditions B-port I/O before VCC ramp-up - prevents transient glitches on active backplane during hot-plug and ensures glitch-free card insertion.
Selectable Polarity (T/C)	Single-pin polarity inversion for both A→B and B→Y paths - supports true or complementary data routing without external inverters, reducing component count in diagnostic or redundancy paths.

Applications

IEEE 1394 Backplane Diagnostics	VME/FB+ System Enhancement
Use Scenario: Real-time monitoring of daughter-card health in modular VME chassis using IEEE 1394 BPSB as auxiliary control bus. IC Role / Device Role / Timing Role: SN74GTLP1394DGVR acts as bidirectional LVTTL/GTLP translator between local FPGA-based link-layer controller and shared GTLP backplane, providing isolated feedback path via Y1/Y2 for status reporting. Use Value: Enables non-intrusive diagnostics without halting main data bus - leverages split A/Y port to read backplane responses while maintaining full bandwidth on primary 64-bit VME data path.	Use Scenario: Adding live-insertion capability to legacy VME64x backplane cards requiring hot-swap without system reboot. IC Role / Device Role / Timing Role: SN74GTLP1394DGVR serves as GTLP interface bridge with BIAS VCC precharge and Ioff protection - isolates card's LVTTL logic from backplane during insertion/removal. Use Value: Eliminates need for complex sequencing circuitry - BIAS VCC activation sequence (GND → BIAS VCC → I/O → VCC) ensures zero disturbance to active GTLP signals during card replacement.
1394 PHY Interface for TSB14AA1	Multi-Slot ATM Clock Distribution
Use Scenario: Interfacing TI TSB14AA1 1394 PHY to host microcontroller in backplane node module. IC Role / Device Role / Timing Role: SN74GTLP1394DGVR routes PHY data (A1/B1/Y1) and strobe (A2/B2/Y2) signals with polarity inversion (T/C = GND) and controlled edge rate (ERC = GND for S50/S100 compliance). Use Value: Matches TSB14AA1's GTLP timing requirements - 4.2 ns typical A→B propagation delay (slow mode) meets 50 MHz (20 ns period) setup/hold margins with margin.	Use Scenario: Distributing synchronized ATM read/write clocks across 16-slot CPCI backplane with variable trace lengths. IC Role / Device Role / Timing Role: SN74GTLP1394DGVR functions as 2-bit GTLP clock buffer with adjustable edge rate - B1/B2 drive clock nets, A1/A2 accept master clock, Y1/Y2 feed local PLLs. Use Value: ERC pin allows edge-rate optimization per slot - slower edges suppress crosstalk on long traces; faster edges maintain jitter budget on short runs.

IEEE 1394 Backplane Diagnostics

VME/FB+ System Enhancement

Use Scenario: Real-time monitoring of daughter-card health in modular VME chassis using IEEE 1394 BPSB as auxiliary control bus.

IC Role / Device Role / Timing Role: SN74GTLP1394DGVR acts as bidirectional LVTTL/GTLP translator between local FPGA-based link-layer controller and shared GTLP backplane, providing isolated feedback path via Y1/Y2 for status reporting.

Use Value: Enables non-intrusive diagnostics without halting main data bus - leverages split A/Y port to read backplane responses while maintaining full bandwidth on primary 64-bit VME data path.

Use Scenario: Adding live-insertion capability to legacy VME64x backplane cards requiring hot-swap without system reboot.

IC Role / Device Role / Timing Role: SN74GTLP1394DGVR serves as GTLP interface bridge with BIAS VCC precharge and Ioff protection - isolates card's LVTTL logic from backplane during insertion/removal.

Use Value: Eliminates need for complex sequencing circuitry - BIAS VCC activation sequence (GND → BIAS VCC → I/O → VCC) ensures zero disturbance to active GTLP signals during card replacement.

1394 PHY Interface for TSB14AA1

Multi-Slot ATM Clock Distribution

Use Scenario: Interfacing TI TSB14AA1 1394 PHY to host microcontroller in backplane node module.

IC Role / Device Role / Timing Role: SN74GTLP1394DGVR routes PHY data (A1/B1/Y1) and strobe (A2/B2/Y2) signals with polarity inversion (T/C = GND) and controlled edge rate (ERC = GND for S50/S100 compliance).

Use Value: Matches TSB14AA1's GTLP timing requirements - 4.2 ns typical A→B propagation delay (slow mode) meets 50 MHz (20 ns period) setup/hold margins with margin.

Use Scenario: Distributing synchronized ATM read/write clocks across 16-slot CPCI backplane with variable trace lengths.

IC Role / Device Role / Timing Role: SN74GTLP1394DGVR functions as 2-bit GTLP clock buffer with adjustable edge rate - B1/B2 drive clock nets, A1/A2 accept master clock, Y1/Y2 feed local PLLs.

Use Value: ERC pin allows edge-rate optimization per slot - slower edges suppress crosstalk on long traces; faster edges maintain jitter budget on short runs.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74GTLP1395DGVR	3-bit configuration (vs. 2-bit); identical GTLP/LVTTL specs, ERC, BIAS VCC, and pin-compatible footprint.	Requires PCB layout change for third bit; otherwise drop-in for higher channel density needs.	Choose when 3-bit data path required - same thermal profile (θJA = 120°C/W) and live-insertion behavior as SN74GTLP1394DGVR.
SN74GTLP1394PWR	TSSOP-24 (PW) package - larger body (5.0 mm × 6.4 mm), lower θJA (108°C/W), same electrical specs and pinout.	Higher thermal margin in convection-cooled slots; requires different land pattern and stencil design.	Choose for improved thermal performance where board space permits - identical functionality and timing, no firmware or logic changes needed.

Compared with SN74GTLP1394PWR and SN74GTLP1395DGVR, the SN74GTLP1394DGVR offers optimal density for 2-bit 1394 backplane interfaces in space-constrained modules, while retaining full live-insertion support and ERC-adjustable signal integrity - making it the preferred choice for compact VME/CPCI node cards where thermal headroom is managed via airflow.

Availability

SN74GTLP1394DGVR is available at Aetrix Electronics and suitable for IEEE 1394 backplane diagnostics, VME64x live-insertion upgrades, and multi-slot ATM clock distribution requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for industrial embedded programs.

Supply support for SN74GTLP1394DGVR 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 expertise in high-speed interface ICs and backplane technologies.

The SN74GTLP1394DGVR belongs to TI's GTLP transceiver product line, engineered specifically for robust, high-speed communication between LVTTL controllers and GTLP backplanes in industrial, telecom, and computing infrastructure - emphasizing live insertion, signal integrity, and IEEE 1394 compliance.

FAQ

What is the function of the BIAS VCC pin on the SN74GTLP1394DGVR?

The BIAS VCC pin on the SN74GTLP1394DGVR supplies precharge current to the B-port I/O structures prior to VCC ramp-up, enabling true live-insertion capability. When BIAS VCC is applied before VCC, it preconditions GTLP drivers/receivers to prevent transient disturbances on the active backplane during card insertion. This feature is mandatory for hot-plug compliance in VME/FB+/CPCI systems and is distinct from standard VCC - it must be sequenced first in the power-up sequence.

How does the ERC pin affect timing performance of the SN74GTLP1394DGVR?

The ERC pin on the SN74GTLP1394DGVR selects between two discrete edge-rate modes: ERC = GND enables slow mode (B-port tr/tf ≈ 2.0/2.5 ns), while ERC = VCC enables fast mode (tr/tf ≈ 1.2/1.8 ns). This directly impacts propagation delay - e.g., A→B tPHL is 4.2 ns (typ) in slow mode vs. 3.6 ns (typ) in fast mode under distributed RLC load. Designers use ERC to balance signal integrity (slower edges reduce ringing on unterminated stubs) against timing margin (faster edges support higher data rates).

Can the SN74GTLP1394DGVR interface with both GTL and GTLP signal standards?

Yes, the SN74GTLP1394DGVR supports both GTL (VTT = 1.2 V, VREF = 0.8 V) and GTLP (VTT = 1.5 V, VREF = 1.0 V) signaling standards. Its ac specifications are guaranteed only for GTLP, but dc parameters allow operation at GTL levels. The device's input thresholds and output swing are compatible with JEDEC JESD8-3, and VREF can be adjusted to optimize noise margin - though TI recommends setting VREF ≈ 2/3 × VTT for best performance in either mode.

What is the purpose of the split LVTTL port (A and Y pins) in the SN74GTLP1394DGVR?

The split LVTTL port - with dedicated A1/A2 (inputs) and Y1/Y2 (outputs) - provides a hardware feedback path for diagnostics and control monitoring without disrupting B-port GTLP backplane traffic. For example, a host controller can write data to A1/A2, observe the corresponding response on Y1/Y2, and verify transceiver health or backplane connectivity in real time - all while B1/B2 remain active on the shared GTLP bus. This architecture is essential for IEEE 1394 BPSB diagnostic applications.

Does the SN74GTLP1394DGVR support polarity inversion, and how is it configured?

Yes, the SN74GTLP1394DGVR supports polarity inversion via the T/C (True/Complement) input. When T/C = HIGH, data flows in true mode (A→B, B→Y); when T/C = LOW, both paths invert (A→B̅, B→Ȳ). This is implemented internally with no additional latency - propagation delays for inverted paths match true-mode values (e.g., A→B tPLH = 4.4 ns typ in both modes). The feature eliminates external inverters in redundancy or test configurations, reducing BOM count and board area.

SN74GTLP1394DGVR Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: 74GTLP

Package/Case:

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Translator Type:: Mixed Signal

Channel Type:: Bidirectional

Number of Circuits:: 1

Channels per Circuit:: 2

Voltage - VCCA:: -

Voltage - VCCB:: -

Input Signal:: LVTTL

Output Signal:: GTLP

Output Type:: Tri-State, Inverted

Data Rate:: -

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

Grade:: -

Qualification:: -

Features:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 16-TFSOP (0.173", 4.40mm Width)

SN74GTLP1394DGVR FAQ

1.How can I place an order for SN74GTLP1394DGVR through Aetrix?

Please submit a Request for Quotation (RFQ) for SN74GTLP1394DGVR 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 SN74GTLP1394DGVR reliable?

The price and inventory of SN74GTLP1394DGVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74GTLP1394DGVR is usually 5 days.

3.What payment methods are accepted for SN74GTLP1394DGVR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74GTLP1394DGVR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SN74GTLP1394DGVR?

SN74GTLP1394DGVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SN74GTLP1394DGVR 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 SN74GTLP1394DGVR?

For technical support, including SN74GTLP1394DGVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74GTLP1394DGVR requirements.

6.How does Aetrix verify that SN74GTLP1394DGVR is sourced from the original manufacturer or authorized distributors?

All SN74GTLP1394DGVR 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 SN74GTLP1394DGVR meets industry standards.

7.What is the process for return or replacement of SN74GTLP1394DGVR?

All SN74GTLP1394DGVR units undergo pre-shipment inspection (PSI). If there is an issue with SN74GTLP1394DGVR, 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 SN74GTLP1394DGVR part is unused and in its original packaging.

Return procedure for SN74GTLP1394DGVR:

1.Submit a request within 90 days.

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

Tech Hub

2026-09-03 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

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.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

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…

2026-09-01 74HC595 Pinout, Timing, Output Current, and Applications

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…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

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…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

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 …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

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…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

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…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

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…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

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…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

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…