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Nexperia USA Inc. 74AVCH16T245DGG,11
- Part No.:
- 74AVCH16T245DGG,11
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
74AVCH16T245DGG,11.pdf
- Description:
- IC TRANSLATOR BIDIR 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,351
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Product details
Overview
74AVCH16T245DGG,11 from Nexperia is a 16-bit dual-supply translating transceiver with bidirectional level-shifting, 3-state outputs, and independent VCC(A)/VCC(B) rails (0.8 V to 3.6 V). It supports voltage translation between 0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, and 3.3 V domains, delivers up to 380 Mbit/s data rate (≥1.8 V → 3.3 V), and integrates bus-hold circuitry and IOFF partial power-down protection. It is used in mixed-voltage SoC interconnects, FPGA I/O bridging, and DDR memory subsystems requiring robust signal integrity across voltage domains.
For engineers reviewing the 74AVCH16T245DGG,11 datasheet, 74AVCH16T245DGG,11 pinout, 74AVCH16T245DGG,11 application, or 74AVCH16T245DGG,11 equivalent, this device is selected for high-speed bidirectional level translation in industrial controllers, automotive infotainment gateways, and telecom baseband modules where supply rail independence, suspend-mode behavior, and bus-hold stability are critical design requirements.
Technical Context
The device implements two independent 8-bit transceiver blocks (1A/1B and 2A/2B), each with dedicated DIR and OE controls referenced to VCC(A). Direction control (nDIR) selects data flow direction: HIGH enables A→B, LOW enables B→A. Output enable (nOE, active LOW) places both sides in high-impedance state.
In suspend mode (VCC(A) = GND or VCC(B) = GND), all outputs go to high-impedance regardless of nOE/nDIR states, while bus-hold remains active on the powered side. The IOFF circuit prevents backflow current during partial power-down, and input clamping accepts up to 3.6 V regardless of VCC level.
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 pair of common logic voltages without external level-shifters. |
| Max Data Rate | 380 Mbit/s (1.8 V → 3.3 V) - supports high-speed parallel bus interfaces such as memory expansion or processor-FPGA links. |
| Propagation Delay | 2.7 ns min to 16.2 ns max (VCC(A)/VCC(B) = 3.3 V/3.3 V, -40 °C to +125 °C) - ensures timing closure in sub-ns-critical synchronous designs. |
| Bus-Hold Current | ±100 μA at 3.0 V - actively holds floating inputs at valid logic levels, eliminating need for external pull resistors. |
| IOFF Leakage | ±5 μA (VCC = 0 V, VI/VO = 0–3.6 V) - limits backfeed current during hot-swap or partial power-down sequences. |
| ESD Protection | HBM > 8000 V, CDM > 1000 V - meets stringent IEC 61000-4-2 system-level ESD immunity requirements. |
| Operating Temp | -40 °C to +125 °C - qualified for under-hood automotive, industrial motor drives, and outdoor telecom equipment. |
Pinout & Package
TSSOP48 (SOT362-1) package: plastic thin shrink small outline, 48 leads, 6.1 mm body width, 0.5 mm pitch, surface-mount compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction control input (VCC(A)-referenced) | Selects data flow direction per 8-bit bank: HIGH = A→B, LOW = B→A. |
| 1OE, 2OE | Output enable input (active LOW, VCC(A)-referenced) | Drives corresponding A/B ports into high-impedance when HIGH; enables bidirectional I/O when LOW. |
| 1A1–1A8, 2A1–2A8 | Data I/O port A (VCC(A)-referenced) | Connects to lower-voltage domain (e.g., 1.2 V core logic); supports 0.8–3.6 V signaling. |
| 1B1–1B8, 2B1–2B8 | Data I/O port B (VCC(B)-referenced) | Connects to higher-voltage domain (e.g., 3.3 V peripheral bus); accepts up to 3.6 V inputs regardless of VCC(B). |
| VCC(A), VCC(B) | Independent supply rails | Enable true dual-rail operation: each port powered separately for optimal noise isolation and voltage domain separation. |
| GND (pins 4,10,15,21,28,34,39,45) | Ground reference | All eight GND pins must be connected to system ground to ensure low-impedance return path and minimize ground bounce. |
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 LDOs in mixed-voltage systems. |
| Configurable bidirectional translation | Per-bank DIR/OE control allows flexible partitioning: use as two 8-bit translators or one 16-bit channel with synchronized direction. |
| Integrated bus-hold circuitry | Active on powered side during suspend mode - maintains stable logic states on unused I/O lines without external components. |
| IOFF partial power-down | Outputs disable automatically when either VCC rail drops to GND - prevents damaging current flow in hot-plug or power sequencing scenarios. |
| JEDEC-compliant voltage standards | Meets JESD8-12 through JESD8-B across full voltage range - ensures interoperability with industry-standard logic families. |
Applications
| Processor-to-FPGA Interconnect | DDR Memory Subsystem Buffering |
|---|---|
|
Use Scenario: Bridging a 1.2 V ARM Cortex-A72 core to a 1.8 V FPGA I/O bank in an edge AI inference module. IC Role / Device Role / Timing Role: Bidirectional level translator handling address/data/control signals with sub-3 ns propagation delay at 3.3 V rails. Use Value: Eliminates discrete resistor networks and reduces PCB layer count by integrating bus-hold and IOFF in a single TSSOP48 package. |
Use Scenario: Isolating DDR3L command/address bus between 1.5 V memory controller and 1.35 V DDR3L SDRAM in industrial HMIs. IC Role / Device Role / Timing Role: Translating unidirectional CA signals with matched propagation delay (<5 ns skew) and 3.6 V-tolerant inputs. Use Value: Ensures setup/hold timing margins under temperature variation (-40 °C to +125 °C) while supporting JEDEC JESD8-7 compliance. |
| Automotive Infotainment Gateway | Industrial PLC I/O Expansion |
|
Use Scenario: Interfacing a 3.3 V CAN FD transceiver PHY to a 1.8 V microcontroller in a vehicle head unit. IC Role / Device Role / Timing Role: Level-shifting CAN TX/RX and control lines with suspend-mode behavior during MCU sleep cycles. Use Value: Maintains bus integrity during low-power states via automatic high-Z output and active bus-hold on powered side. |
Use Scenario: Extending 24 V digital I/O module communication to a 2.5 V programmable logic controller (PLC) backplane. IC Role / Device Role / Timing Role: Translating opto-isolated input status and relay control signals with ±100 μA bus-hold drive strength. Use Value: Reduces component count by replacing 16 discrete Schmitt-trigger buffers and pull-up resistors in space-constrained DIN-rail enclosures. |
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 |
|---|---|---|---|
| SN74AVCH16T245DGGR | TSSOP48 package, same electrical specs, but rated only to +85 °C ambient (vs. +125 °C for DGG,11) | Suitable for commercial-grade computing or consumer electronics; not qualified for under-hood automotive or industrial thermal environments. | Select when cost sensitivity outweighs extended temperature requirement and board layout allows same footprint. |
| 74LVC16T245PW,118 | Single 1.2–3.6 V supply (VCC only); no independent VCC(A)/VCC(B); max data rate 200 Mbit/s | Limited to unidirectional or fixed-rail translation; lacks suspend-mode behavior and IOFF protection. | Choose only for simpler, lower-speed applications where dual-rail independence and hot-swap safety are not required. |
Compared with SN74AVCH16T245DGGR and 74LVC16T245PW,118, the 74AVCH16T245DGG,11 provides guaranteed operation up to +125 °C, full IOFF-enabled partial power-down, and superior bus-hold drive strength - making it the sole option for thermally demanding, safety-critical, or hot-pluggable systems.
Availability
74AVCH16T245DGG,11 is available at Aetrix Electronics and suitable for automotive infotainment gateways, industrial PLC I/O expansion, and DDR memory subsystem buffering requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74AVCH16T245DGG,11 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, serving automotive, industrial, and consumer markets with ISO/TS 16949-certified manufacturing.
The 74AVCH16T245 belongs to Nexperia's Advanced Very High-Speed CMOS (AVCH) logic family, engineered specifically for low-voltage, high-speed bidirectional level translation in thermally constrained and mixed-rail embedded systems.
FAQ
What is the minimum recommended load capacitance for reliable 380 Mbit/s operation?
For 380 Mbit/s operation (1.8 V → 3.3 V), the datasheet specifies CL ≤ 15 pF with RL = 2 kΩ and Δt/ΔV ≤ 1.0 ns/V. Measured propagation delay increases to 6.0 ns at 15 pF, remaining within timing budget for DDR3/DDR4 command buses. Exceeding 15 pF degrades edge rate and may violate setup/hold windows in high-speed synchronous interfaces.
How does the bus-hold circuit behave when VCC(A) = 0 V and VCC(B) = 3.3 V?
When VCC(A) = 0 V and VCC(B) = 3.3 V, the A-side I/Os enter suspend mode (high-Z), but the B-side bus-hold remains fully active - sinking or sourcing up to ±100 μA at 3.0 V to hold floating B-port inputs at valid logic levels. This behavior is confirmed in Table 7 and Section 6 function table footnote [1].
Can 1DIR and 2DIR be tied together for unified 16-bit direction control?
Yes - 1DIR and 2DIR can be connected to a single controller GPIO. The device's logic diagram (Fig. 1) and function table confirm identical DIR functionality per bank. However, doing so forfeits independent 8-bit direction control, limiting flexibility in asymmetric data flow architectures like split-memory-mapped peripherals.
What is the maximum allowable voltage difference between VCC(A) and VCC(B)?
No maximum differential is specified - VCC(A) and VCC(B) may differ by up to 2.8 V (e.g., 0.8 V and 3.6 V) per Absolute Maximum Ratings (Table 4). The device maintains correct translation and IOFF behavior across the full 0.8 V–3.6 V range for each rail independently, as verified in functional description Section 1 and Table 3.
74AVCH16T245DGG,11 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74AVCH
- Package/Case:
- 48-TFSOP (0.240", 6.10mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Logic Type:
- Translation Transceiver
- Number of Elements:
- 2
- 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:
- 48-TSSOP
74AVCH16T245DGG,11 FAQ
1.How can I place an order for 74AVCH16T245DGG,11 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AVCH16T245DGG,11 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 74AVCH16T245DGG,11 reliable?
The price and inventory of 74AVCH16T245DGG,11 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AVCH16T245DGG,11 is usually 5 days.
3.What payment methods are accepted for 74AVCH16T245DGG,11?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AVCH16T245DGG,11 transactions.
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4.How is shipping managed for 74AVCH16T245DGG,11?
74AVCH16T245DGG,11 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AVCH16T245DGG,11 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 74AVCH16T245DGG,11?
For technical support, including 74AVCH16T245DGG,11 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AVCH16T245DGG,11 requirements.
6.How does Aetrix verify that 74AVCH16T245DGG,11 is sourced from the original manufacturer or authorized distributors?
All 74AVCH16T245DGG,11 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 74AVCH16T245DGG,11 meets industry standards.
7.What is the process for return or replacement of 74AVCH16T245DGG,11?
All 74AVCH16T245DGG,11 units undergo pre-shipment inspection (PSI). If there is an issue with 74AVCH16T245DGG,11, 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 74AVCH16T245DGG,11 part is unused and in its original packaging.
Return procedure for 74AVCH16T245DGG,11:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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