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Nexperia USA Inc. 74AVCH4T245PW,118
- Part No.:
- 74AVCH4T245PW,118
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74AVCH4T245PW,118.pdf
- Description:
- IC TRANSLATION TXRX 3.6V 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:83,303
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Product details
Overview
74AVCH4T245PW,118 from Nexperia is a 4-bit dual-supply translating transceiver enabling bidirectional level translation between 0.8 V and 3.6 V domains. It supports two independent 2-bit paths or unified 4-bit operation, features active bus hold on all I/Os, IOFF partial power-down protection, and operates across –40 °C to +125 °C. Used in mixed-voltage SoC interconnects, FPGA I/O bridging, and low-power sensor hub interfaces.
For engineers reviewing the 74AVCH4T245PW,118 datasheet, 74AVCH4T245PW,118 pinout, 74AVCH4T245PW,118 application, or 74AVCH4T245PW,118 equivalent, key selection criteria include configurable direction control (nDIR), dual-rail supply independence (VCC(A)/VCC(B)), suspend-mode isolation, bus hold current specifications, and propagation delay asymmetry between A→B and B→A data paths.
Technical Context
The device implements a dual-rail CMOS transceiver architecture with separate input reference domains: nAn, nDIR, and nOE are referenced to VCC(A); nBn pins to VCC(B). Direction control is synchronous and non-latched - HIGH on nDIR enables A-to-B transmission, LOW enables B-to-A.
IOFF circuitry actively disables outputs during partial power-down (e.g., VCC(A) = 0 V while VCC(B) = 3.3 V), preventing backflow current. Bus hold circuitry maintains valid logic states on floating inputs without external resistors, with sustaining currents specified at ±24 μA (1.2 V) to ±100 μA (3.0 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | VCC(A) and VCC(B): 0.8 V to 3.6 V independently - enables translation between any low-voltage node (0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V) |
| Max Data Rate | 380 Mbit/s for ≥1.8 V ↔ 3.3 V translation - supports high-speed inter-ASIC communication |
| Propagation Delay | A→B: 2.9 ns min / 9.1 ns max (VCC(A)=3.3 V, VCC(B)=3.3 V, –40 °C to +125 °C); B→A path is slower due to internal topology |
| Bus Hold Current | ±100 μA at 3.0 V - eliminates need for external pull resistors on unused I/Os in space-constrained designs |
| IOFF Leakage | ±5 μA max per port during suspend mode - ensures safe hot-swap and power-gating in modular systems |
| ESD Rating | HBM >8 kV, CDM >1 kV - meets industrial IEC 61000-4-2 robustness requirements without added protection circuitry |
| Operating Temp | –40 °C to +125 °C - qualified for under-hood automotive and industrial edge computing environments |
Pinout & Package
TSSOP16 package (SOT403-1), 4.4 mm body width, 0.65 mm pitch, 16-pin surface-mount with exposed pad not electrically connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3 | VCC(A) | Supply for A-side I/Os and control inputs (nDIR, nOE); defines logic thresholds for A-port signals |
| 2, 4 | nDIR, nOE | Active-HIGH direction control and active-LOW output enable - both referenced to VCC(A) |
| 5–7, 10–13 | nA1–nA2, nB1–nB2 | Bidirectional data terminals: nAn referenced to VCC(A), nBn to VCC(B); support 2×2-bit or 4-bit configuration |
| 8, 9, 14, 15 | GND | Four dedicated ground connections - mandatory for noise immunity and thermal dissipation in TSSOP layout |
| 16 | VCC(B) | Supply for B-side I/Os only - fully independent of VCC(A), enabling true voltage domain isolation |
Key Features
| Feature | Design Value |
|---|---|
| Dual-rail voltage translation | Independent VCC(A)/VCC(B) supplies allow simultaneous interfacing of 0.8 V ASIC core and 3.3 V peripheral bus |
| IOFF partial power-down | Outputs disable automatically when either supply drops to GND - prevents back-current damage during staged power sequencing |
| Integrated bus hold | Eliminates external pull-up/down resistors on all 8 I/Os - reduces BOM count and PCB area in high-density layouts |
| Suspend mode isolation | Both A and B ports enter high-Z state when either VCC is at GND - essential for hot-plug and modular system architectures |
| JEDEC compliance | Validated to JESD8-12 through JESD8-B standards - guarantees interoperability across multi-vendor low-voltage logic families |
Applications
| Application 1 | Application 2 |
|---|---|
Use Scenario: Interfacing a 1.2 V FPGA I/O bank to a 3.3 V industrial analog front-end ADC. IC Role / Device Role / Timing Role: Bidirectional level translator managing data and control lines (CS#, SCLK, SDATA) with precise timing alignment. Use Value: Eliminates discrete resistor networks and timing skew from passive translation, supporting 380 Mbit/s SPI clock rates without signal integrity degradation. | Use Scenario: Isolating a 0.8 V AI accelerator core from a 1.8 V memory subsystem in an edge inference module. IC Role / Device Role / Timing Role: Voltage-domain boundary transceiver with IOFF protection during core sleep cycles. Use Value: Prevents leakage-induced wake-up events and ensures clean power-state transitions with <5 μA suspend-mode leakage per port. |
| Application 3 | Application 4 |
Use Scenario: Bridging a 1.5 V microcontroller GPIO header to legacy 2.5 V sensor nodes in smart building controllers. IC Role / Device Role / Timing Role: Configurable 2-bit transceiver per sensor channel, using nDIR to manage read/write direction per device. Use Value: Reduces component count by replacing four discrete level shifters with one 16-pin TSSOP, cutting assembly cost and routing complexity. | Use Scenario: Enabling hot-swap capability in a modular PLC backplane where modules power up/down independently. IC Role / Device Role / Timing Role: Suspend-mode isolator ensuring signal integrity during insertion/removal of powered modules. Use Value: Guarantees high-Z isolation on both sides when VCC(A) or VCC(B) is unpowered - no bus contention or latch-up risk. |
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 |
|---|---|---|---|
| SN74AVCH4T245PWR | TSSOP16 package, identical pinout and electrical specs; TI version with different ESD rating (HBM >12 kV vs Nexperia's >8 kV) | Qualified for extended temperature range (–55 °C to +125 °C) - suitable for aerospace-grade thermal cycling | Select if higher HBM ESD margin or MIL-PRF-38535 qualification is required; otherwise functionally interchangeable. |
| 74LVC4T245GT,118 | Same Nexperia family but LVC variant: narrower VCC range (1.65 V–3.6 V), no 0.8 V support, lower bus hold current (±20 μA @1.8 V) | Lacks sub-1.0 V compatibility - unsuitable for ultra-low-power IoT SoCs operating at 0.8 V core voltage | Choose only for 1.8 V/3.3 V-only systems where cost sensitivity outweighs 0.8 V flexibility and bus hold strength. |
Compared with SN74AVCH4T245PWR and 74LVC4T245GT,118, the 74AVCH4T245PW,118 uniquely supports 0.8 V operation and delivers strongest bus hold (±100 μA), making it optimal for next-gen low-voltage mixed-signal integration where voltage scalability and pin-count efficiency are critical.
Availability
74AVCH4T245PW,118 is available at Aetrix Electronics and suitable for industrial automation interfaces, automotive ADAS sensor hubs, and battery-powered edge AI modules requiring stable component supply across extended temperature and voltage ranges.
Supply support for 74AVCH4T245PW,118 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 standard logic, discrete, and MOSFET solutions, with leadership in advanced packaging and automotive-qualified components.
This device belongs to the AVCH logic family, engineered specifically for ultra-low-voltage bidirectional translation in power-constrained, thermally demanding embedded systems - emphasizing IOFF safety, bus hold integration, and JEDEC-compliant interoperability.
FAQ
Can 74AVCH4T245PW,118 translate between 0.8 V and 3.3 V simultaneously?
Yes. VCC(A) can be set to 0.8 V (powering nAn/nDIR/nOE) while VCC(B) is set to 3.3 V (powering nBn), enabling full bidirectional translation. The device guarantees 380 Mbit/s data rate and valid logic thresholds across this combination, with propagation delay of 6.0 ns (A→B) and 12.0 ns (B→A) at 25 °C.
What happens to I/Os when only VCC(A) is powered and VCC(B) = 0 V?
In suspend mode, both nAn and nBn outputs enter high-impedance OFF-state regardless of nDIR/nOE state. Bus hold remains active on the powered side (nAn), maintaining valid logic levels on A-port inputs, while B-port pins float but are isolated from back-current.
Is external termination required for 380 Mbit/s operation?
No. The device's typical output drive strength (±12 mA at 3.0 V) and low output capacitance (≤0.4 pF) support 380 Mbit/s over short PCB traces (<5 cm) without series termination. For longer runs or noisy environments, 22 Ω to 33 Ω series resistors at the driver end are recommended per JEDEC guidelines.
How does bus hold interact with external pull resistors?
Bus hold is internally enabled and cannot be disabled. If external pull resistors are used, their values must exceed the bus hold sustaining current (e.g., >100 kΩ for 3.0 V operation) to avoid contention. In most cases, external resistors are unnecessary and discouraged to prevent signal distortion and increased power draw.
74AVCH4T245PW,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74AVCH
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Translation Transceiver
- Number of Elements:
- 2
- Number of Bits per Element:
- 2
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 12mA, 12mA
- Voltage - Supply:
- 0.8V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
74AVCH4T245PW,118 FAQ
1.How can I place an order for 74AVCH4T245PW,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AVCH4T245PW,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 74AVCH4T245PW,118 reliable?
The price and inventory of 74AVCH4T245PW,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AVCH4T245PW,118 is usually 5 days.
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Once your 74AVCH4T245PW,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 74AVCH4T245PW,118?
For technical support, including 74AVCH4T245PW,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AVCH4T245PW,118 requirements.
6.How does Aetrix verify that 74AVCH4T245PW,118 is sourced from the original manufacturer or authorized distributors?
All 74AVCH4T245PW,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 74AVCH4T245PW,118 meets industry standards.
7.What is the process for return or replacement of 74AVCH4T245PW,118?
All 74AVCH4T245PW,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74AVCH4T245PW,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 74AVCH4T245PW,118 part is unused and in its original packaging.
Return procedure for 74AVCH4T245PW,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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