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Nexperia USA Inc. 74AVC4TD245PW,118
- Part No.:
- 74AVC4TD245PW,118
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
74AVC4TD245PW,118.pdf
- Description:
- IC TRANSLATOR BIDIR 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,029
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Product details
Overview
74AVC4TD245PW from Nexperia is a 4-bit dual-supply translating transceiver enabling bidirectional level translation between mismatched voltage domains (e.g., 1.2 V ↔ 3.3 V). It features independent VCC(A) and VCC(B) supplies (0.8–3.6 V), four per-bit direction controls (DIR1–DIR4), active-low output enable (OE), and IOFF partial power-down protection. Used in mixed-voltage SoC interconnects, FPGA I/O bridging, and DDR memory subsystems.
For engineers reviewing the 74AVC4TD245PW datasheet, 74AVC4TD245PW pinout, 74AVC4TD245PW application, or 74AVC4TD245PW equivalent, key selection criteria include configurable per-bit direction control, 380 Mbit/s max data rate (≥1.8 V → 3.3 V), suspend-mode isolation, IOFF leakage suppression, and TSSOP16 package compatibility with high-density PCB layouts.
Technical Context
This device implements eight independent 1-bit bidirectional channels, each with dedicated DIRn input to select An→Bn or Bn→An data flow. Direction control is asynchronous and operates independently per channel-no shared bus arbitration logic is embedded.
VCC(A) powers A-side inputs (An, DIRn, OE) and drives A-side outputs; VCC(B) powers B-side inputs (Bn) and drives B-side outputs. The IOFF circuit actively disables both A- and B-side I/Os when either supply drops to GND, preventing back-current during partial power-down sequences.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | VCC(A) and VCC(B): 0.8 V to 3.6 V - supports translation across 0.8/1.2/1.5/1.8/2.5/3.3 V nodes |
| Max Data Rate | 380 Mbit/s - achievable only for ≥1.8 V ↔ 3.3 V translation; lower rates apply for sub-1.8 V interfaces |
| Propagation Delay | Min 0.2 ns (VCC = 3.3 V), Max 15.6 ns (−40 °C to +125 °C, worst-case VCC pair) - critical for timing-critical interconnects |
| IOFF Leakage | ±5 μA max at 125 °C - ensures safe isolation during system suspend when one rail is powered down |
| ESD Rating | HBM > 8000 V, CDM > 1000 V - meets industrial-grade robustness requirements without external protection |
| Operating Temp | −40 °C to +125 °C - qualified for automotive under-hood and industrial control applications |
Pinout & Package
TSSOP16 (SOT403-1) package: plastic thin shrink small outline, 16-pin, 4.4 mm body width, 0.65 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC(A) | Supply for A-side logic (An, DIRn, OE); defines voltage reference for A-port I/O thresholds |
| 2 | DIR1 | Direction control for bit 1: HIGH = A1→B1, LOW = B1→A1 |
| 3–6 | A1–A4 | Bidirectional A-side data terminals; referenced to VCC(A) |
| 7 | DIR3 | Direction control for bit 3: HIGH = A3→B3, LOW = B3→A3 |
| 8 | GND | Common ground reference for all internal circuitry and ESD structures |
| 9 | OE | Active-low output enable: LOW enables transceiver operation; HIGH forces all A/B ports to high-Z |
| 10 | DIR2 | Direction control for bit 2: HIGH = A2→B2, LOW = B2→A2 |
| 11–14 | B4–B1 | Bidirectional B-side data terminals; referenced to VCC(B) |
| 15 | DIR4 | Direction control for bit 4: HIGH = A4→B4, LOW = B4→A4 |
| 16 | VCC(B) | Supply for B-side logic (Bn); defines voltage reference for B-port I/O thresholds |
Key Features
| Feature | Design Value |
|---|---|
| Per-bit direction control | Four independent DIR inputs allow asymmetric data flow configuration per channel - eliminates need for external multiplexing logic |
| IOFF partial power-down | Prevents damaging backflow current when either VCC(A) or VCC(B) is at GND - enables true mixed-rail suspend mode |
| Wide voltage compatibility | Supports JEDEC standards JESD8-12 through JESD8-B - certified interoperability across 0.8 V to 3.6 V logic families |
| Suspend-mode isolation | Both An and Bn enter high-impedance OFF-state if either supply is at GND - guarantees bus decoupling during power sequencing |
| High-speed translation | 380 Mbit/s max rate (1.8 V → 3.3 V) with <16 ns propagation delay - suitable for DDR clock forwarding and high-throughput peripheral bridges |
Applications
| SoC-to-FPGA Interconnect | DDR Memory Subsystem Bridging |
|---|---|
|
Use Scenario: Connecting a 1.2 V ARM-based SoC to a 3.3 V FPGA I/O bank requiring bidirectional data exchange. IC Role / Device Role / Timing Role: Level-translating transceiver managing per-bit direction control for address/data multiplexing and control signaling. Use Value: Eliminates need for discrete level shifters per signal; IOFF prevents latch-up during FPGA configuration phase when VCC(B) ramps before VCC(A). |
Use Scenario: Isolating DDR3 command/address bus (1.5 V) from a 2.5 V memory controller PHY while maintaining timing integrity. IC Role / Device Role / Timing Role: Bidirectional voltage translator with sub-10 ns propagation delay ensuring setup/hold compliance across voltage domains. Use Value: Enables direct interface without retiming logic; suspend mode isolates DDR bus during controller reset without external isolation switches. |
| Industrial PLC Backplane Interface | Automotive ADAS Sensor Hub |
|
Use Scenario: Interfacing legacy 2.5 V fieldbus controllers with modern 1.8 V microcontroller modules on a shared backplane. IC Role / Device Role / Timing Role: Robust level shifter supporting −40 °C to +125 °C operation and HBM > 8 kV ESD immunity. Use Value: Reduces BOM count by consolidating four independent bidirectional channels in one TSSOP16 package; IOFF protects against hot-swap induced backfeed. |
Use Scenario: Bridging 1.2 V image sensor outputs to a 3.3 V domain processor in an automotive camera module operating under engine bay thermal stress. IC Role / Device Role / Timing Role: High-reliability voltage translator with guaranteed operation up to +125 °C and low dynamic power dissipation. Use Value: Meets AEC-Q100 Grade 2 requirements via extended temperature qualification; CPD < 12 pF minimizes switching noise in analog-sensitive imaging paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-supply translating transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74AVC4T245RGE | TSSOP16 package; identical 4-bit dual-supply architecture but rated only to +85 °C; IOFF not specified for full −40 °C to +125 °C range | Limited to commercial/industrial ambient environments; unsuitable for under-hood automotive use | Select when cost sensitivity outweighs extended temperature requirement and system-level suspend-mode validation is not needed |
| TXB0104PWR | Auto-direction sensing (no DIR pins); higher typical propagation delay (20+ ns); supports only 1.2 V to 3.3 V translation | Eliminates direction control wiring but lacks per-bit configurability; incompatible with sub-1.2 V domains | Choose for simplified routing where direction is predictable and voltage combinations are fixed; avoid when DIR flexibility or 0.8 V support is required |
Compared with SN74AVC4T245RGE and TXB0104PWR, the 74AVC4TD245PW uniquely delivers per-bit DIR control, full −40 °C to +125 °C IOFF validation, and 0.8 V minimum supply support - making it the only option for thermally demanding, mixed-voltage, and direction-dynamic applications.
Availability
74AVC4TD245PW is available at Aetrix Electronics and suitable for industrial PLC backplanes, automotive ADAS sensor hubs, and SoC-to-FPGA interconnects requiring stable component supply across extended temperature and mixed-voltage conditions.
Supply support for 74AVC4TD245PW 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 essential efficiency technologies, delivering high-performance logic, analog, and MOSFET solutions optimized for reliability and energy efficiency.
The 74AVC4TD245PW belongs to Nexperia's AVC advanced very low voltage logic family, designed specifically for robust bidirectional level translation in space-constrained, thermally aggressive, and multi-rail embedded systems.
FAQ
Can 74AVC4TD245PW 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-voltage logic and standard 3.3 V I/O. Input thresholds scale with respective supplies, and the device maintains valid logic levels and timing across this full range per JEDEC JESD8-12 and JESD8-B compliance.
What happens to the I/Os when only VCC(A) is powered and VCC(B) = 0 V?
In this condition, the device enters suspend mode: all A-side and B-side I/Os go to high-impedance OFF-state. The IOFF circuit actively blocks current flow from the powered A-side into the unpowered B-side rail, preventing damage and bus contention - confirmed in datasheet Section 1, Table 4, and Figure 2.
Is OE pin referenced to VCC(A) or VCC(B)?
The OE pin is referenced to VCC(A), as explicitly stated in Table 3 (Pin Description) and functional diagram Fig. 1. Its logic threshold scales with VCC(A), and asserting OE = HIGH (relative to VCC(A)) disables both A- and B-side outputs regardless of VCC(B) state.
Does the device support hot-swap insertion while powered?
Yes. The combination of IOFF protection, ±8000 V HBM ESD rating, and defined suspend behavior allows safe insertion into a live backplane. When VCC(B) is initially at 0 V, the B-side I/Os remain isolated until VCC(B) ramps, preventing transient glitches or latch-up - validated per JESD78 Class II latch-up performance (>100 mA).
74AVC4TD245PW,118 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:
- 4
- Voltage - VCCA:
- 0.8 V ~ 3.6 V
- Voltage - VCCB:
- 1.1 V ~ 3.6 V
- Input Signal:
- -
- Output Signal:
- -
- Output Type:
- Tri-State, Non-Inverted
- Data Rate:
- 380Mbps
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Features:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP (0.173", 4.40mm Width)
74AVC4TD245PW,118 FAQ
1.How can I place an order for 74AVC4TD245PW,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AVC4TD245PW,118 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 74AVC4TD245PW,118 reliable?
The price and inventory of 74AVC4TD245PW,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AVC4TD245PW,118 is usually 5 days.
3.What payment methods are accepted for 74AVC4TD245PW,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AVC4TD245PW,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AVC4TD245PW,118?
74AVC4TD245PW,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AVC4TD245PW,118 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 74AVC4TD245PW,118?
For technical support, including 74AVC4TD245PW,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AVC4TD245PW,118 requirements.
6.How does Aetrix verify that 74AVC4TD245PW,118 is sourced from the original manufacturer or authorized distributors?
All 74AVC4TD245PW,118 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 74AVC4TD245PW,118 meets industry standards.
7.What is the process for return or replacement of 74AVC4TD245PW,118?
All 74AVC4TD245PW,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74AVC4TD245PW,118, 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 74AVC4TD245PW,118 part is unused and in its original packaging.
Return procedure for 74AVC4TD245PW,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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