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Nexperia USA Inc. 74AVC2T45GXX
- Part No.:
- 74AVC2T45GXX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
74AVC2T45GXX.pdf
- Description:
- IC TRANSLTR BIDIRECTIONAL 8X2SON
- Quantity:
- Payment:
- Shipping:
Inventory:10,000
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Product details
Overview
74AVC2T45 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 directionality (A↔B), and IOFF circuitry for partial power-down protection. Used in mixed-voltage SoC interfacing, such as connecting a 1.8 V FPGA I/O bank to a 3.3 V sensor bus.
For engineers reviewing the 74AVC2T45 datasheet, 74AVC2T45 pinout, 74AVC2T45 application, or 74AVC2T45 equivalent, key selection factors include its 500 Mbit/s max data rate (1.8 V–3.3 V), Suspend mode behavior during single-rail power loss, IOFF leakage < ±1 μA at 0 V supply, and JEDEC-compliant voltage thresholds across six logic families.
Technical Context
The device implements a dual-rail CMOS transceiver architecture with separate input-referenced control (DIR tied to VCC(A)) and output-referenced I/O ports (1A/2A to VCC(A), 1B/2B to VCC(B)). Direction switching is synchronous with DIR edge transitions, and propagation delay varies with supply pairing - e.g., A→B tpd = 7.7 ns at VCC(A)=1.8 V / VCC(B)=1.8 V, but 9.2 ns at VCC(A)=1.8 V / VCC(B)=3.3 V.
Suspend mode activates when either VCC(A) or VCC(B) = GND, forcing both ports into high-impedance OFF-state (Z) regardless of DIR state. The IOFF circuit blocks backflow current by disabling outputs during asymmetric power-down, meeting JESD78 Class II latch-up immunity (>100 mA).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | VCC(A): 0.8 V–3.6 V; VCC(B): 0.8 V–3.6 V - enables translation between any two low-voltage nodes (e.g., 1.2 V ↔ 2.5 V, 1.8 V ↔ 3.3 V) |
| Max Data Rate | 500 Mbit/s - achievable only for 1.8 V–3.3 V translation; drops to 320 Mbit/s for sub-1.8 V translations |
| Propagation Delay | A→B: 7.7 ns typical @ 1.8 V/1.8 V; B→A: 12.2 ns typical @ 1.8 V/1.8 V - asymmetry arises from internal path routing |
| IOFF Leakage | < ±1 μA @ VCC(A)=0 V, VCC(B)=3.6 V - prevents damaging backflow current during partial power-down |
| ESD Protection | HBM: >8000 V; CDM: >1000 V - exceeds JEDEC JS-001/JS-002 requirements for robust board handling |
| Operating Temp | −40 °C to +125 °C - qualified for automotive under-hood and industrial control applications |
| Input Thresholds | VIH = 0.65×VCC(A) min @ 1.1–1.95 V; VIL = 0.35×VCC(A) max - ensures noise margin across JEDEC standards JESD8-11/8-7 |
Pinout & Package
Available in multiple compact packages: TSSOP8 (SOT505-2), VSSOP8 (SOT765-1), and XSON8 variants (SOT833-1, SOT1116, SOT1203, SOT1233-2). All are 8-terminal, surface-mount, leadless or gull-wing designs with thermal enhancements per variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC(A) | Supply rail for A-side I/O (1A, 2A) and DIR input - defines logic thresholds for control and A-port signals |
| 2 | 1A | Bidirectional data terminal referenced to VCC(A); functions as input or output depending on DIR state |
| 3 | 2A | Second bidirectional A-side terminal - identical electrical behavior to 1A, independent channel |
| 4 | GND | Common reference ground for both supply domains - mandatory connection before VCC rails per power-up guidance |
| 5 | DIR | Direction control input referenced to VCC(A); HIGH = A→B, LOW = B→A - no internal pull-up/pull-down |
| 6 | 2B | Bidirectional data terminal referenced to VCC(B); mirrors 1B functionality with independent signal path |
| 7 | 1B | Bidirectional data terminal referenced to VCC(B); active only when DIR selects B→A or A→B path |
| 8 | VCC(B) | Supply rail for B-side I/O (1B, 2B) - sets output voltage levels and input thresholds for B-port signals |
Key Features
| Feature | Design Value |
|---|---|
| Dual-supply translation | Independent VCC(A)/VCC(B) rails allow simultaneous interfacing of heterogeneous voltage domains without external level-shifting components |
| IOFF partial power-down | Automatically disables outputs and limits leakage to <±1 μA when either VCC rail is at 0 V - eliminates need for external isolation switches |
| Suspend mode | Both A and B ports enter high-impedance Z-state if VCC(A) = GND or VCC(B) = GND - prevents bus contention during rail sequencing faults |
| JEDEC compliance | Meets JESD8-12 through JESD8-B across 0.8–3.6 V range - guarantees interoperability with legacy and next-gen logic families |
| High-speed operation | 500 Mbit/s max data rate with sub-10 ns propagation delays supports DDR memory interfaces and high-throughput sensor links |
Applications
| Mobile Baseband Interface | FPGA-to-ASIC Interconnect |
|---|---|
|
Use Scenario: Connecting a 1.2 V mobile application processor's GPIO bank to a 2.5 V RF transceiver IC. IC Role / Device Role / Timing Role: Bidirectional voltage translator ensuring signal integrity across voltage domains while maintaining timing alignment via matched A↔B propagation paths. Use Value: Eliminates discrete resistor-divider or MOSFET-based translators, reducing BOM count and PCB area by >60% versus discrete solutions. |
Use Scenario: Interfacing a 1.8 V Artix-7 FPGA I/O bank to a 3.3 V industrial ADC with SPI interface. IC Role / Device Role / Timing Role: Level-shifting transceiver managing direction control for full-duplex SPI clock/data lines with sub-10 ns skew control. Use Value: Enables reliable 50 MHz SPI operation without timing violations, validated per JEDEC JESD8-5 (1.8 V–2.7 V) compliance. |
| Automotive Camera Link | Industrial PLC I/O Expansion |
|
Use Scenario: Bridging a 3.3 V MIPI CSI-2 serializer to a 1.5 V image signal processor in ADAS camera modules. IC Role / Device Role / Timing Role: Dual-channel translator supporting parallel pixel data lanes with DIR-synchronized direction switching for command/response protocols. Use Value: Supports −40 °C to +125 °C operation with <100 ps inter-channel skew - critical for pixel-clock-aligned video capture. |
Use Scenario: Isolating 24 V digital input modules from a 1.2 V microcontroller in programmable logic controllers. IC Role / Device Role / Timing Role: Unidirectional level shifter (DIR fixed LOW) translating optocoupler outputs to MCU GPIO with IOFF protection during firmware updates. Use Value: Prevents backfeed into powered-down MCU during hot-swap I/O module replacement - certified per IEC 61000-4-2 Level 4 ESD. |
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 |
|---|---|---|---|
| Texas Instruments TXB0102 | Auto-direction sensing (no DIR pin); higher ICC (25 μA typ vs. 16 μA); 320 Mbit/s max | Eliminates system-level DIR control logic but adds capacitive loading sensitivity; less suitable for deterministic bidirectional protocols like SPI | Select when DIR pin routing is constrained and direction changes are infrequent; avoid for high-frequency bidirectional buses. |
| ON Semiconductor NLSX4014MUTAG | 4-channel; push-pull outputs only; no 3-state; 240 Mbit/s max; VCC range 1.65–4.5 V | Lacks Suspend mode and IOFF - requires external power sequencing control; limited to 1.65+ V domains | Choose for cost-sensitive 4-channel applications where both rails ≥1.65 V and partial power-down is not required. |
Compared with TXB0102 and NLSX4014MUTAG, the 74AVC2T45 provides deterministic DIR-controlled directionality, lowest static current (16 μA), and guaranteed Suspend mode behavior - making it optimal for safety-critical and mixed-rail industrial systems requiring predictable power-down states.
Availability
74AVC2T45 is available at Aetrix Electronics and suitable for mobile baseband interfaces, FPGA-to-ASIC interconnects, and automotive camera links requiring stable component supply across extended temperature ranges and mixed-voltage designs.
Supply support for 74AVC2T45 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 focused on high-volume, high-reliability logic, analog, and MOSFET solutions for automotive, industrial, and consumer markets.
The 74AVC2T45 belongs to Nexperia's AVC advanced voltage-tolerant logic family, engineered specifically for robust bidirectional level translation in space-constrained, thermally demanding applications with strict power sequencing requirements.
FAQ
What is the minimum valid voltage difference between VCC(A) and VCC(B)?
No minimum voltage difference is specified - the device operates correctly with VCC(A) = VCC(B) = 0.8 V or VCC(A) = 0.8 V / VCC(B) = 3.6 V. Static and dynamic parameters are characterized across the full 0.8–3.6 V range for each rail independently, per Tables 6 and 9–13.
Can DIR be driven from a different supply than VCC(A)?
No - DIR is explicitly referenced to VCC(A) per Table 3 and Section 7. Driving DIR from another rail violates absolute maximum ratings and may cause undefined logic states or increased leakage. A level shifter is required if DIR originates from a non-VCC(A) domain.
Does the device support hot insertion when one VCC rail is already powered?
Yes - IOFF circuitry ensures safe hot insertion: when VCC(A) is powered and VCC(B) is floating or grounded, A-port outputs are disabled and leakage remains <±1 μA. However, VCC(B) must be ramped within recommended operating conditions before applying signals to 1B/2B pins.
How does propagation delay vary with asymmetric VCC pairings?
Delay is asymmetric and supply-dependent: A→B tpd increases as VCC(B) rises (e.g., 7.7 ns @ 1.8 V/1.8 V → 9.2 ns @ 1.8 V/3.3 V), while B→A tpd decreases (12.2 ns → 11.8 ns). This is due to internal driver strength scaling relative to the destination rail voltage, as confirmed in Table 9.
74AVC2T45GXX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74AVC
- Package/Case:
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Translator Type:
- Voltage Level
- Channel Type:
- Bidirectional
- Number of Circuits:
- 1
- Channels per Circuit:
- 2
- Voltage - VCCA:
- 1.65 V ~ 3.6 V
- Voltage - VCCB:
- 1.2 V ~ 3.6 V
- Input Signal:
- -
- Output Signal:
- -
- Output Type:
- Tri-State, Non-Inverted
- Data Rate:
- 500Mbps
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Features:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-XFDFN Exposed Pad
74AVC2T45GXX FAQ
1.How can I place an order for 74AVC2T45GXX through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AVC2T45GXX 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 74AVC2T45GXX reliable?
The price and inventory of 74AVC2T45GXX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AVC2T45GXX is usually 5 days.
3.What payment methods are accepted for 74AVC2T45GXX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AVC2T45GXX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AVC2T45GXX?
74AVC2T45GXX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AVC2T45GXX 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 74AVC2T45GXX?
For technical support, including 74AVC2T45GXX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AVC2T45GXX requirements.
6.How does Aetrix verify that 74AVC2T45GXX is sourced from the original manufacturer or authorized distributors?
All 74AVC2T45GXX 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 74AVC2T45GXX meets industry standards.
7.What is the process for return or replacement of 74AVC2T45GXX?
All 74AVC2T45GXX units undergo pre-shipment inspection (PSI). If there is an issue with 74AVC2T45GXX, 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 74AVC2T45GXX part is unused and in its original packaging.
Return procedure for 74AVC2T45GXX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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