My Inquiry
My Account
Nexperia USA Inc. 74LVT16543ADGG,112
- Part No.:
- 74LVT16543ADGG,112
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 56-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
74LVT16543ADGG,112.pdf
- Description:
- IC TXRX NON-INVERT 3.6V 56TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,164
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
74LVT16543ADGG,112 from Nexperia is a 3.3 V 16-bit registered transceiver with 3-state outputs, designed for bidirectional data bus interfacing between asynchronous or synchronous logic domains. It supports dual 8-bit or single 16-bit operation, features bus-hold inputs eliminating external pull-ups, operates from 2.7 V to 3.6 V, and tolerates 5.5 V inputs-enabling direct TTL/5 V system interfacing in industrial control backplanes.
For engineers reviewing the 74LVT16543ADGG,112 datasheet, 74LVT16543ADGG,112 pinout, 74LVT16543ADGG,112 application, or 74LVT16543ADGG,112 equivalent, key selection criteria include latch-enable timing (min 0.8 ns setup at 3.3 V), 3.7 ns max A↔B propagation delay, ±64 mA output drive, IOFF power-down protection, and TSSOP56 thermal performance under -40 °C to +85 °C ambient conditions.
Technical Context
The device implements two independent 8-bit registered transceiver channels (A↔B and C↔D), each with separate enable (nEAB/nEBA), latch (nLEAB/nLEBA), and output-enable (nOEAB/nOEBA) controls. Data flow direction is determined by active-LOW control signals, with transparent mode active when both nE and nLE are LOW, and latched mode triggered by LOW-to-HIGH nLE transitions.
Bus-hold circuitry maintains valid logic states on unused I/Os without external resistors, while IOFF functionality isolates I/Os during power-down. The BiCMOS process delivers TTL-compatible input thresholds (VIL ≤ 0.8 V, VIH ≥ 2.0 V) and overvoltage-tolerant inputs up to 5.5 V referenced to GND.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.7 V to 3.6 V - Ensures stable operation across wide industrial rail tolerances and compatibility with 3.3 V logic families. |
| Propagation Delay (A↔B) | 1.0–3.7 ns at 3.3 V - Enables high-speed data transfer in 100+ MHz bus systems with predictable timing margins. |
| Output Drive | +64 mA / -32 mA - Sustains robust signal integrity driving heavy capacitive loads or multiple TTL inputs without external buffers. |
| Input Voltage Tolerance | Up to 5.5 V - Allows direct connection to legacy 5 V buses without level-shifting components. |
| Operating Temperature | -40 °C to +85 °C - Qualified for extended industrial environments including factory automation and telecom infrastructure. |
| Bus-Hold Current | ±75 μA to ±140 μA at 3.0 V - Actively retains last-valid state on floating inputs, eliminating board space and BOM cost for pull-up resistors. |
| IOFF Leakage | ±100 μA at VCC = 0 V - Prevents back-driving of powered subsystems during hot-swap or partial-power-down sequences. |
Pinout & Package
TSSOP56 (SOT364-1) package: 56-pin plastic thin shrink small outline, 6.1 mm body width, 0.5 mm pitch, 1.2 mm max height - optimized for high-density PCB layouts with enhanced thermal dissipation vs. SSOP.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A0–1A7, 2A0–2A7 | Group A data I/Os | 8-bit port for first transceiver channel; bidirectional with bus-hold and 3-state control. |
| 1B0–1B7, 2B0–2B7 | Group B data I/Os | 8-bit port for second transceiver channel; electrically isolated from Group A with independent controls. |
| 1OEAB, 1OEBA, 2OEAB, 2OEBA | Output enable (active LOW) | Asserting LOW enables outputs; HIGH forces high-impedance OFF-state for bus sharing. |
| 1EAB, 1EBA, 2EAB, 2EBA | Enable (active LOW) | Gates data flow direction; must be LOW for transparent or latched operation. |
| 1LEAB, 1LEBA, 2LEAB, 2LEBA | Latch enable (active LOW) | LOW-to-HIGH transition captures and holds input data; enables synchronous register behavior. |
| VCC (pins 7, 22, 35, 50) | Power supply | Four distributed VCC pins reduce IR drop and improve noise immunity across wide bus widths. |
| GND (pins 4, 11, 18, 25, 32, 39, 46, 53) | Ground reference | Eight GND pins provide low-inductance return paths critical for signal integrity in high-speed 16-bit interfaces. |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional registered interface | Two independent 8-bit channels with separate latch/enable controls allow flexible partitioning of 16-bit data paths. |
| Bus-hold inputs | Eliminates need for 16 external pull-up resistors-reducing BOM count, layout area, and risk of floating node failures. |
| IOFF partial power-down | Prevents current leakage between unpowered and powered sections during live insertion or system sleep modes. |
| 5.5 V tolerant inputs | Enables direct connection to 5 V microcontrollers, FPGAs, or legacy peripherals without voltage translators. |
| Power-up 3-state | Outputs remain in high-impedance state until VCC stabilizes, preventing bus contention during power sequencing. |
Applications
| Industrial Backplane Interface | Memory Expansion Subsystem |
|---|---|
Use Scenario: Interfacing a 3.3 V FPGA to a 5 V ISA-style industrial backplane with shared address/data bus. IC Role / Device Role / Timing Role: Registered transceiver providing level-shifted, latched bidirectional data transfer with precise timing control via nLEAB/nLEBA. Use Value: Eliminates discrete level shifters and bus buffers while maintaining setup/hold compliance at 25 ns cycle times. | Use Scenario: Extending SRAM or Flash memory width from 8-bit to 16-bit on an embedded controller board. IC Role / Device Role / Timing Role: Bidirectional data register synchronizing memory read/write cycles between controller and parallel memory devices. Use Value: Provides deterministic 3.7 ns max propagation delay and ±64 mA drive to meet JEDEC memory timing specifications. |
| FPGA I/O Expansion Bridge | Legacy Peripheral Adapter |
Use Scenario: Connecting a resource-constrained FPGA I/O bank to multiple 8-bit peripheral ICs sharing a common data bus. IC Role / Device Role / Timing Role: Dual-channel transceiver enabling time-multiplexed access to UARTs, ADCs, and GPIO expanders via shared bus. Use Value: Bus-hold inputs prevent glitches during arbitration; 3-state outputs avoid contention during peripheral selection. | Use Scenario: Adapting modern 3.3 V SoC designs to legacy 5 V parallel printer or display interfaces. IC Role / Device Role / Timing Role: Level-tolerant registered buffer managing handshake signals (STROBE, ACK) and 8-bit data lines. Use Value: Overvoltage-tolerant inputs accept 5 V printer signals directly; latch function captures strobed data reliably. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit registered transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC16543DGGR | Lower drive (+32 mA/-32 mA), 1.65–3.6 V supply, no bus-hold | Requires external pull-ups; suited for low-power portable systems where 5 V tolerance is not needed | Select when power budget is constrained and 5 V interfacing is absent |
| 74ALVCH16543TTR | Higher speed (2.1 ns typ tpd), 1.65–3.6 V, no IOFF or bus-hold | Lacks power-down isolation and floating-input protection; requires careful power sequencing | Select only in fully 3.3 V systems with strict timing closure requirements |
Compared with SN74LVC16543DGGR and 74ALVCH16543TTR, the 74LVT16543ADGG,112 uniquely combines 5.5 V input tolerance, bus-hold, and IOFF in a single 16-bit registered transceiver-making it the only choice for mixed-voltage industrial backplanes requiring robustness during hot-swap and undefined power states.
Availability
74LVT16543ADGG,112 is available at Aetrix Electronics and suitable for industrial backplane interfaces, FPGA I/O expansion bridges, memory subsystems, and legacy peripheral adapters requiring stable component supply across extended temperature ranges.
Supply support for 74LVT16543ADGG,112 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
Nexperia is a global semiconductor expert delivering high-performance logic, analog, and MOSFET solutions with focus on efficiency, reliability, and sustainability in industrial and automotive applications.
The 74LVT series targets high-speed, mixed-voltage digital interfacing-designed specifically for robust 3.3 V system integration with legacy 5 V infrastructure in factory automation, telecom, and test equipment.
FAQ
What is the minimum setup time required for nLEAB relative to data inputs at 3.3 V?
The minimum setup time (tsu(H)) for nLEAB relative to data inputs is 0.8 ns at VCC = 3.3 V, measured with VI = 2.0 V. This ensures reliable latching of data before the LOW-to-HIGH transition of nLEAB, supporting clock rates up to 125 MHz in transparent mode.
Does the 74LVT16543ADGG,112 support live insertion into a powered backplane?
Yes-its IOFF circuitry disables I/O leakage when VCC = 0 V, and bus-hold inputs maintain defined logic states during insertion. Combined with power-up 3-state behavior, this enables safe hot-plug operation in modular industrial systems without bus contention.
Can unused I/O pins be left floating without external biasing?
Yes-bus-hold circuitry actively maintains the last-valid logic state on all data I/O pins (1A0–1A7, 1B0–1B7, etc.) without external resistors. This eliminates floating-node risks and reduces BOM complexity in partially populated designs.
How does the device behave when VCC drops below 2.7 V during operation?
Below 2.7 V, static characteristics degrade: VOL increases beyond 0.55 V at 64 mA, and propagation delay exceeds 4.4 ns. The device remains functional down to 2.0 V but violates recommended operating conditions; IOFF and bus-hold remain active until VCC reaches 0 V.
74LVT16543ADGG,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74LVT
- Package/Case:
- 56-TFSOP (0.240", 6.10mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 56-TSSOP
74LVT16543ADGG,112 FAQ
1.How can I place an order for 74LVT16543ADGG,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVT16543ADGG,112 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 74LVT16543ADGG,112 reliable?
The price and inventory of 74LVT16543ADGG,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVT16543ADGG,112 is usually 5 days.
3.What payment methods are accepted for 74LVT16543ADGG,112?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVT16543ADGG,112 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVT16543ADGG,112?
74LVT16543ADGG,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVT16543ADGG,112 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 74LVT16543ADGG,112?
For technical support, including 74LVT16543ADGG,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVT16543ADGG,112 requirements.
6.How does Aetrix verify that 74LVT16543ADGG,112 is sourced from the original manufacturer or authorized distributors?
All 74LVT16543ADGG,112 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 74LVT16543ADGG,112 meets industry standards.
7.What is the process for return or replacement of 74LVT16543ADGG,112?
All 74LVT16543ADGG,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVT16543ADGG,112, 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 74LVT16543ADGG,112 part is unused and in its original packaging.
Return procedure for 74LVT16543ADGG,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74LVT16543ADGG,112 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…
