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Nexperia USA Inc. 74AVC2T45GD,125
- Part No.:
- 74AVC2T45GD,125
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
74AVC2T45GD,125.pdf
- Description:
- IC TRANSLTR BIDIRECTIONAL 8XSON
- Quantity:
- Payment:
- Shipping:
Inventory:3,315
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Product details
Overview
74AVC2T45GD,125 from Nexperia is a dual-bit, dual-supply voltage level translator/transceiver enabling bidirectional logic-level translation between 0.8 V and 3.6 V domains. It features independent VCC(A) and VCC(B) supplies, DIR-controlled data direction (A↔B), and IOFF circuitry for partial power-down protection. Used in mixed-voltage SoC interconnects, such as 1.8 V FPGA I/O interfacing with 3.3 V peripherals.
For engineers reviewing the 74AVC2T45GD,125 datasheet, 74AVC2T45GD,125 pinout, 74AVC2T45GD,125 application, or 74AVC2T45GD,125 equivalent, key selection criteria include bidirectional translation capability, 500 Mbit/s max data rate at 1.8–3.3 V, IOFF-enabled suspend mode, and compatibility with JEDEC standards JESD8-12 through JESD8-B.
Technical Context
The device implements a dual-rail transceiver architecture where pins 1A/2A and DIR are referenced to VCC(A), while 1B/2B are referenced to VCC(B); direction control is asynchronous and unidirectional per cycle. Internal IOFF circuitry actively disables outputs when either supply drops to GND, enforcing high-impedance OFF-state on both ports during suspend mode.
Propagation delay varies with supply pairing: tpd(A→B) ranges from 5.7 ns (VCC(A)=3.3 V, VCC(B)=2.5 V) to 9.2 ns (VCC(A)=0.8 V, VCC(B)=3.3 V); enable time (ten) is calculated as tdis(DIR→opposite port) + tpd(opposite path), supporting deterministic timing in bidirectional bus arbitration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply range VCC(A) | 0.8 V to 3.6 V - supports direct interface with 0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, and 3.3 V logic domains |
| Supply range VCC(B) | 0.8 V to 3.6 V - independently configurable to match target-side voltage, enabling asymmetric translation |
| Max data rate | 500 Mbit/s - achievable only when translating between 1.8 V–3.3 V domains; defines maximum usable clock frequency for synchronous interfaces |
| IOFF current | ±1 μA max at VCC = 0 V - ensures negligible backflow current during partial power-down, protecting powered-down subsystems |
| Propagation delay (A→B) | 5.7 ns min (VCC(A)=3.3 V, VCC(B)=2.5 V) - determines minimum cycle time for A-to-B data transfer in high-speed links |
| Enable time (DIR→B) | 14.8 ns max (VCC(A)=3.3 V, VCC(B)=3.3 V) - critical for bus turnaround timing in bidirectional protocols like I²C or custom dual-port memory interfaces |
| ESD rating (HBM) | >8000 V - exceeds JEDEC JS-001 Class 3B, enabling robust handling in automated assembly and field-replaceable modules |
Pinout & Package
74AVC2T45GD,125 is packaged in SOT765-1 (VSSOP8): plastic very thin shrink small outline package, 8 leads, body width 2.3 mm, 0.5 mm lead pitch, -40 °C to +125 °C operating range.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC(A) | Supply rail for A-side I/O and DIR input; sets VIH/VIL thresholds for DIR and nA pins |
| 2 | 1A | Bidirectional data terminal referenced to VCC(A); functions as input or output depending on DIR state |
| 3 | 2A | Bidirectional data terminal referenced to VCC(A); mirrors 1A behavior with independent signal path |
| 4 | GND | Common reference ground for all internal circuitry and ESD protection networks |
| 5 | DIR | Direction control input referenced to VCC(A); HIGH enables A→B, LOW enables B→A |
| 6 | 2B | Bidirectional data terminal referenced to VCC(B); output when DIR=HIGH, input when DIR=LOW |
| 7 | 1B | Bidirectional data terminal referenced to VCC(B); operates synchronously with 2B under same DIR control |
| 8 | VCC(B) | Supply rail for B-side I/O; defines VOH/VOL levels and input thresholds for nB pins |
Key Features
| Feature | Design Value |
|---|---|
| Dual-supply translation | Independent 0.8–3.6 V rails on A and B sides eliminate need for external level-shifting components in heterogeneous voltage systems |
| IOFF partial power-down | Automatically places both ports in high-Z when either VCC(A) or VCC(B) = GND, preventing backdrive damage during hot-swap or sleep-mode sequencing |
| Suspend mode | Guaranteed high-impedance OFF-state on all I/Os when one supply is at GND - required for PCIe/USB companion chip power gating |
| JEDEC compliance | Validated across five JEDEC standards (JESD8-12 to JESD8-B), ensuring interoperability with industry-standard low-voltage logic families |
| Low dynamic power | CPD = 2 pF (A port, A→B direction at 0.8 V) - minimizes switching power in battery-powered edge nodes with frequent I/O activity |
Applications
| Mobile Baseband Interface | FPGA-to-ASIC Interconnect |
|---|---|
Use Scenario: Connecting 1.2 V baseband processor GPIOs to 1.8 V RF transceiver control lines in LTE/5G handsets. IC Role / Device Role / Timing Role: Bidirectional voltage translator managing control signaling (e.g., PA enable, antenna switch) with sub-10 ns propagation delay. Use Value: Eliminates discrete resistor-divider networks, reducing PCB area by >70% and enabling full-speed handshaking without timing margin loss. |
Use Scenario: Interfacing 3.3 V FPGA configuration I/O banks with 1.5 V ASIC debug ports in prototyping platforms. IC Role / Device Role / Timing Role: Dual-bit transceiver providing isolated level translation for JTAG TCK/TMS signals with DIR-controlled directionality. Use Value: Supports IEEE 1149.1 compliance at 25 MHz clock rates while maintaining <100 ps skew between TCK and TMS paths. |
| Industrial Sensor Hub | Automotive ADAS Camera Link |
Use Scenario: Bridging 0.8 V microcontroller UART TX/RX to 2.5 V industrial sensor SPI bus in smart factory gateways. IC Role / Device Role / Timing Role: Unidirectional translator (DIR fixed) converting logic levels for serial command/response traffic. Use Value: Enables direct connection without level-shifter ICs or MOSFET-based solutions, cutting BOM cost by $0.18/unit at 10k volume. |
Use Scenario: Transmitting MIPI D-PHY clock/data lanes from 1.8 V camera SoC to 3.3 V automotive infotainment display processor. IC Role / Device Role / Timing Role: Dual-bit translator handling HS clock and LP data lanes with matched propagation delay (Δtpd ≤ 0.5 ns). Use Value: Maintains D-PHY timing budget integrity across voltage domains, avoiding lane realignment firmware overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-supply voltage translation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TXS0102DCUR | Single-directional (no DIR pin); auto-direction sensing; lower max data rate (24 Mbps) | Only suitable for open-drain buses (I²C); cannot support push-pull bidirectional protocols like SPI or custom parallel interfaces | Select when replacing legacy I²C level shifters; avoid for any application requiring DIR-controlled direction or >100 Mbps throughput |
| SN74AVC4T245PWR | Quad-bit (4-channel), wider VCC range (1.2–3.6 V), higher ICC (23 μA typ), larger TSSOP16 package | Over-spec'd for dual-bit needs; occupies 2.5× PCB area; requires additional decoupling due to higher supply current | Choose only when scaling to 4+ signal lines; not cost- or space-optimal for 2-signal translation tasks |
Compared with TXS0102DCUR and SN74AVC4T245PWR, the 74AVC2T45GD,125 uniquely balances minimal footprint (VSSOP8), DIR-controlled bidirectionality, and 500 Mbit/s capability-making it optimal for space-constrained, high-speed dual-signal bridges where direction must be externally managed.
Availability
74AVC2T45GD,125 is available at Aetrix Electronics and suitable for mobile baseband interfaces, FPGA-to-ASIC interconnects, and industrial sensor hubs requiring stable component supply across extended temperature ranges (-40 °C to +125 °C).
Supply support for 74AVC2T45GD,125 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 optimized for efficiency, reliability, and miniaturization in consumer, industrial, and automotive markets.
The 74AVC2T45GD,125 belongs to Nexperia's AVC advanced voltage-tolerant logic family, engineered specifically for low-voltage, high-speed bidirectional translation in power-sensitive, mixed-rail digital systems.
FAQ
Can 74AVC2T45GD,125 translate between 0.8 V and 3.3 V simultaneously?
Yes. VCC(A) can be set to 0.8 V while VCC(B) is set to 3.3 V, enabling direct translation between ultra-low-power sensor nodes and standard 3.3 V peripherals. Input thresholds scale with respective supplies, and output drive strength meets VOL/VOH specs across this full range per JEDEC JESD8-12 and JESD8-B compliance.
What happens if DIR is left floating?
DIR is referenced to VCC(A) and has no internal pull-up/down; a floating DIR causes undefined direction control and potential bus contention. Designers must tie DIR to a defined logic level (e.g., via MCU GPIO or resistor to VCC(A)/GND) before enabling I/O activity to ensure deterministic A↔B data flow.
Does 74AVC2T45GD,125 support hot insertion?
Yes. Its IOFF circuitry activates when either VCC(A) or VCC(B) reaches GND, forcing both ports into high-impedance OFF-state. This prevents backdrive current during live insertion into powered-backplane systems, satisfying IEC 61000-4-2 Level 4 ESD immunity requirements.
How does suspend mode affect timing parameters?
In suspend mode (VCC(A) = GND or VCC(B) = GND), all I/Os enter guaranteed high-Z state within 100 ns; propagation delay, enable, and disable times become undefined. The device exits suspend mode only after both supplies stabilize within recommended operating conditions - no reset sequence is required.
74AVC2T45GD,125 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74AVC
- Package/Case:
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Translator Type:
- Voltage Level
- Channel Type:
- Bidirectional
- Number of Circuits:
- 1
- Channels per Circuit:
- 2
- Voltage - VCCA:
- 0.8 V ~ 3.6 V
- Voltage - VCCB:
- 0.8 V ~ 3.6 V
- Input Signal:
- -
- Output Signal:
- -
- Output Type:
- Tri-State, Non-Inverted
- Data Rate:
- 500Mbps
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Features:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-XFDFN
74AVC2T45GD,125 FAQ
1.How can I place an order for 74AVC2T45GD,125 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AVC2T45GD,125 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 74AVC2T45GD,125 reliable?
The price and inventory of 74AVC2T45GD,125 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AVC2T45GD,125 is usually 5 days.
3.What payment methods are accepted for 74AVC2T45GD,125?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AVC2T45GD,125 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AVC2T45GD,125?
74AVC2T45GD,125 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AVC2T45GD,125 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 74AVC2T45GD,125?
For technical support, including 74AVC2T45GD,125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AVC2T45GD,125 requirements.
6.How does Aetrix verify that 74AVC2T45GD,125 is sourced from the original manufacturer or authorized distributors?
All 74AVC2T45GD,125 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 74AVC2T45GD,125 meets industry standards.
7.What is the process for return or replacement of 74AVC2T45GD,125?
All 74AVC2T45GD,125 units undergo pre-shipment inspection (PSI). If there is an issue with 74AVC2T45GD,125, 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 74AVC2T45GD,125 part is unused and in its original packaging.
Return procedure for 74AVC2T45GD,125:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74AVC2T45GD,125 Tags
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