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Nexperia USA Inc. 74AVC8T245PW:112
- Part No.:
- 74AVC8T245PW:112
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 24-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74AVC8T245PW:112.pdf
- Description:
- IC TRANSLATION TXRX 3.6V 24TSSOP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
74AVC8T245PW:112 from Nexperia is an 8-bit dual-supply translating transceiver enabling bidirectional level translation between 0.8 V and 3.6 V domains. It features independent VCC(A) and VCC(B) supplies, DIR-controlled direction, active-low OE for 3-state output control, and IOFF circuitry for partial power-down isolation. Used in mixed-voltage SoC interconnects, FPGA I/O bridging, and memory subsystem voltage translation.
For engineers reviewing the 74AVC8T245PW:112 datasheet, 74AVC8T245PW:112 pinout, 74AVC8T245PW:112 application, or 74AVC8T245PW:112 equivalent, key selection criteria include configurable voltage translation range (0.8–3.6 V per rail), maximum data rate (380 Mbit/s at ≥1.8 V→3.3 V), suspend-mode behavior under single-rail power-down, and TSSOP24 package compatibility with industrial temperature operation (−40 °C to +125 °C).
Technical Context
The device implements a dual-rail CMOS transceiver architecture with separate input-reference domains: An, DIR, and OE referenced to VCC(A); Bn referenced to VCC(B). Direction control is synchronous and non-latched - signal flow follows DIR state in real time without internal storage.
IOFF circuitry actively disables outputs when either VCC(A) or VCC(B) is at GND, forcing both An and Bn into high-impedance OFF-state and blocking backflow current. Suspend mode compliance ensures safe hot-insertion and power sequencing in multi-rail systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range (VCC(A)/VCC(B)) | 0.8 V to 3.6 V each - enables translation across 0.8/1.2/1.5/1.8/2.5/3.3 V logic nodes without external level shifters. |
| Max Data Rate | 380 Mbit/s (1.8 V → 3.3 V) - supports high-speed parallel bus interfaces like low-voltage memory data buses or FPGA configuration links. |
| Propagation Delay (An→Bn) | 2.7 ns min / 9.9 ns max (−40 °C to +125 °C) - ensures timing closure in sub-5 ns critical paths with 1.8 V/3.3 V domain crossing. |
| IOFF Leakage Current | ±1 μA max per port at 0 V supply - guarantees <1 μA backfeed during partial power-down, meeting JEDEC JESD78 Class II latch-up immunity. |
| ESD Protection | HBM >8 kV, CDM >1 kV - provides robust handling margin for automated PCB assembly and field-replaceable module integration. |
| Operating Temperature | −40 °C to +125 °C - qualified for under-hood automotive ECUs, industrial motor drives, and telecom base station control planes. |
| Package | TSSOP24 (SOT355-1), 4.4 mm body width - surface-mount compatible with standard reflow profiles and IPC-7351B land patterns. |
Pinout & Package
TSSOP24 package (SOT355-1) with 24 leads, 0.65 mm pitch, and 4.4 mm body width. Pin 1 index located at top-left corner; GND pins (11, 12, 13) require connection to system ground plane for noise immunity and thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 23, 24 | VCC(A), VCC(B), VCC(B) | VCC(A) powers A-side inputs (An, DIR, OE); dual VCC(B) pins supply B-side outputs (Bn) and reduce IR drop in high-current switching. |
| 2 | DIR | Direction control: HIGH enables An→Bn flow; LOW enables Bn→An flow - no internal latching, real-time bidirectional routing. |
| 3–10 | A1–A8 | 8-bit A-side I/O port referenced to VCC(A); accepts input voltages up to 3.6 V regardless of VCC(A) level. |
| 11–13 | GND | Three dedicated ground terminals - must be connected to common 0 V reference to ensure signal integrity and ESD path continuity. |
| 14–21 | B8–B1 | 8-bit B-side I/O port referenced to VCC(B); output swing tracks VCC(B), enabling precise voltage-domain matching. |
| 22 | OE | Active-low output enable: LOW enables transceiver; HIGH forces all A/B pins into high-Z - essential for bus arbitration and hot-swap isolation. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent supply rails | VCC(A) and VCC(B) operate independently from 0.8 V to 3.6 V - eliminates need for external regulators or charge pumps in heterogeneous voltage systems. |
| IOFF partial power-down | Outputs disable automatically when either supply drops to GND - prevents back-driving powered subsystems during power sequencing or fault conditions. |
| Suspend mode | Both A and B ports enter high-Z when VCC(A) = GND or VCC(B) = GND - enables safe insertion/removal in live backplanes and modular computing architectures. |
| JEDEC-compliant voltage standards | Meets JESD8-12 through JESD8-B across full supply range - ensures interoperability with DDR, LPDDR, PCIe, and MIPI interface voltage families. |
| Low dynamic power dissipation | CPD as low as 0.2 pF per A-port channel - reduces switching power in high-frequency data paths, critical for battery-powered edge AI modules. |
Applications
| Automotive ADAS Sensor Hub | FPGA-to-Memory Interface |
|---|---|
|
Use Scenario: Interfacing 1.2 V image sensor outputs to a 1.8 V ADAS processor SoC via parallel LVCMOS bus. IC Role / Device Role / Timing Role: Bidirectional voltage translator isolating sensor domain from processor domain while preserving setup/hold timing margins. Use Value: Eliminates discrete resistor-divider networks or dedicated level-shifter ICs, reducing BOM count and PCB area by 40% in compact camera modules. |
Use Scenario: Connecting 3.3 V FPGA I/O banks to 1.5 V DDR3L memory controller signals in industrial PLC mainboards. IC Role / Device Role / Timing Role: Configurable transceiver enabling synchronous read/write bursts across voltage domains with sub-10 ns propagation delay. Use Value: Maintains 380 Mbit/s effective throughput at 1.8 V→3.3 V translation, supporting real-time motion control loop bandwidths >20 kHz. |
| Industrial Ethernet PHY Interface | Hot-Swappable Module Backplane |
|
Use Scenario: Level-shifting MDIO management bus signals between 2.5 V Ethernet PHY and 3.3 V MAC controller in switch ASIC designs. IC Role / Device Role / Timing Role: Low-leakage transceiver with IOFF ensuring no current injection during PHY reset or link renegotiation sequences. Use Value: Enables reliable MDIO communication across voltage islands with ±0.1 μA IOFF leakage - prevents bus contention during PHY firmware updates. |
Use Scenario: Isolating 1.8 V module-side logic from 3.3 V backplane control bus during live insertion/removal in telecom line cards. IC Role / Device Role / Timing Role: Suspend-mode transceiver entering high-Z on loss of either rail, preventing backfeed into powered backplane infrastructure. Use Value: Achieves zero-fault hot-swap compliance per IEC 61000-4-2 Level 4 (8 kV contact discharge) due to integrated HBM ESD protection. |
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 |
|---|---|---|---|
| SN74AVC8T245RHLR | QFN24 package (3.5 × 5.5 mm), −40 °C to +125 °C, identical electrical specs but higher thermal conductivity. | Better suited for space-constrained, thermally demanding applications where TSSOP24 footprint exceeds board area budget. | Select when thermal resistance <45 °C/W is required and reflow-compatible QFN assembly is available. |
| 74LVC8T245PW,118 | Single 1.65–3.6 V supply only; no dual-rail capability; lower max speed (240 Mbit/s); lacks IOFF/suspend mode. | Limited to same-voltage-domain translation; unsuitable for mixed-voltage SoC interconnects requiring true 0.8 V ↔ 3.3 V bridging. | Choose only for cost-sensitive, single-rail legacy designs where voltage translation depth is ≤1.8 V. |
Compared with SN74AVC8T245RHLR and 74LVC8T245PW,118, the 74AVC8T245PW:112 uniquely delivers full 0.8–3.6 V dual-rail translation with suspend-mode safety and industrial temperature support in a widely adopted TSSOP24 footprint - making it the only option for robust, mixed-voltage hot-swap and automotive ADAS use cases.
Availability
74AVC8T245PW:112 is available at Aetrix Electronics and suitable for automotive ADAS sensor hubs, industrial Ethernet PHY interfaces, and FPGA-to-memory subsystems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74AVC8T245PW: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 focused on high-volume, high-reliability logic, analog, and MOSFET solutions for automotive, industrial, and consumer markets.
The 74AVC8T245 belongs to Nexperia's Advanced Voltage Controlled (AVC) logic family, engineered specifically for low-voltage, high-speed bidirectional translation in heterogeneous voltage systems found in modern SoCs and modular electronics.
FAQ
Can 74AVC8T245PW:112 translate between 0.8 V and 3.3 V simultaneously?
Yes. VCC(A) can be set to 0.8 V (for 0.8 V logic domain) and VCC(B) to 3.3 V (for 3.3 V domain), enabling bidirectional translation. The device supports this combination at up to 100 Mbit/s, with propagation delay of 5.3 ns (An→Bn) and 3.0 ns (Bn→An) at −40 °C to +125 °C.
What happens to outputs when only VCC(A) is powered and VCC(B) = 0 V?
In this suspend condition, both A and B ports enter high-impedance OFF-state. The IOFF circuitry blocks current flow, limiting leakage to ±1 μA per port. This prevents back-driving the unpowered 3.3 V domain and meets JEDEC JESD78 Class II latch-up immunity requirements.
Is the TSSOP24 package RoHS and REACH compliant?
Yes. The 74AVC8T245PW:112 carries Nexperia's standard RoHS-compliant, halogen-free, and lead-free qualification. It meets EU Directive 2011/65/EU and Regulation (EC) No 1907/2006 (REACH), with full material declarations available upon request.
How does OE interact with DIR during state transitions?
OE is asynchronous and overrides DIR: when OE is HIGH, all outputs go high-Z regardless of DIR state. When OE goes LOW, direction immediately follows DIR - no metastability or glitching occurs due to synchronous design of the output enable path relative to DIR sampling.
74AVC8T245PW:112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74AVC
- Package/Case:
- 24-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Logic Type:
- Translation Transceiver
- Number of Elements:
- 1
- Number of Bits per Element:
- 8
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 12mA, 12mA
- Voltage - Supply:
- 0.8V ~ 3.6V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-TSSOP
74AVC8T245PW:112 FAQ
1.How can I place an order for 74AVC8T245PW:112 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AVC8T245PW: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 74AVC8T245PW:112 reliable?
The price and inventory of 74AVC8T245PW:112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AVC8T245PW:112 is usually 5 days.
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74AVC8T245PW:112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AVC8T245PW: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 74AVC8T245PW:112?
For technical support, including 74AVC8T245PW:112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AVC8T245PW:112 requirements.
6.How does Aetrix verify that 74AVC8T245PW:112 is sourced from the original manufacturer or authorized distributors?
All 74AVC8T245PW: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 74AVC8T245PW:112 meets industry standards.
7.What is the process for return or replacement of 74AVC8T245PW:112?
All 74AVC8T245PW:112 units undergo pre-shipment inspection (PSI). If there is an issue with 74AVC8T245PW: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 74AVC8T245PW:112 part is unused and in its original packaging.
Return procedure for 74AVC8T245PW:112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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