NXP Semiconductors 74AVC20T245DGV,118
- Part No.:
- 74AVC20T245DGV,118
- Manufacturer:
- NXP Semiconductors
- Package:
- 56-TFSOP (0.173", 4.40mm Width)
- Datasheet:
-
74AVC20T245DGV,118.pdf
- Description:
- IC TRANSLATOR BIDIR 56TSSOP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
74AVC20T245DGV,118 from Nexperia is a 20-bit dual-supply translating transceiver enabling bi-directional voltage level translation between 0.8 V and 3.6 V domains. It supports two independent 10-bit channels (1A/1B and 2A/2B), features separate direction (nDIR) and output enable (nOE) controls per channel, and operates across −40 °C to +125 °C for industrial and automotive interface bridging.
For engineers reviewing the 74AVC20T245DGV,118 datasheet, 74AVC20T245DGV,118 pinout, 74AVC20T245DGV,118 application, or 74AVC20T245DGV,118 equivalent, key selection criteria include dual-voltage domain compatibility, IOFF-enabled partial power-down, JEDEC-compliant low-voltage operation (down to 0.8 V), and TSSOP56 package suitability for space-constrained PCBs with mixed-voltage SoC/FPGA interconnects.
Technical Context
The 74AVC20T245DGV,118 implements two independent 10-bit bidirectional data paths, each with dedicated nDIR and nOE inputs referenced to VCC(A). The A-side ports (1An/2An/nDIR/nOE) are powered by VCC(A); B-side ports (1Bn/2Bn) by VCC(B), enabling asymmetric supply configurations.
Its IOFF circuitry actively disables outputs when either VCC(A) or VCC(B) is at GND, preventing backflow current during suspend mode. Input tolerance up to 3.6 V allows interfacing with higher-voltage logic while operating at sub-1.0 V core voltages, satisfying JESD8-12 through JESD8-B compliance across all supported voltage pairs.
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 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 (≥1.8 V ↔ 3.3 V) - supports high-speed DDR memory interface and FPGA I/O bridging |
| Propagation Delay | 2.9 ns min / 9.1 ns max (−40 °C to +125 °C, 3.0–3.6 V) - ensures timing-critical signal integrity in real-time control systems |
| IOFF Leakage | ±1 μA max (VCC = 0 V, VI/VO = 0–3.6 V) - guarantees safe hot-swap and power sequencing in modular systems |
| ESD Rating | HBM >8 kV, CDM >1 kV - meets industrial-grade robustness requirements without external protection |
| Operating Temp | −40 °C to +125 °C - qualified for under-hood automotive and industrial motor drive applications |
Pinout & Package
TSSOP56 package (SOT481-2), plastic thin shrink small outline, 56 leads, body width 4.4 mm. All GND pins must be connected to ground (0 V).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 28 | 1DIR, 2DIR | Direction control inputs referenced to VCC(A); HIGH enables A→B, LOW enables B→A per channel |
| 56, 29 | 1OE, 2OE | Active-LOW output enable; HIGH forces high-impedance OFF-state on respective 10-bit port |
| 55–43, 42–30 | 1A1–1A10, 2A1–2A10 | A-side I/O ports referenced to VCC(A); tolerate up to 3.6 V regardless of VCC(A) level |
| 2–14, 15–27 | 1B1–1B10, 2B1–2B10 | B-side I/O ports referenced to VCC(B); support independent voltage domain translation |
| 7, 22, 35, 50 | VCC(B), VCC(A) | Dual supplies: VCC(A) powers A-side logic and controls; VCC(B) powers B-side I/O buffers |
| 4, 11, 18, 25, 32, 39, 46, 53 | GND | Eight dedicated ground connections - mandatory for noise immunity and thermal dissipation in high-speed operation |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional voltage translation | Enables seamless communication between 0.8 V ASIC cores and 3.3 V peripherals without external level-shifting components |
| IOFF partial power-down | Prevents damaging backflow current when one supply rail is powered off - critical for system-level power gating |
| JEDEC compliance across five standards | Validated for interoperability with JEDEC JESD8-12 (0.8–1.3 V) through JESD8-B (2.7–3.6 V) interfaces |
| Suspend mode operation | Enters high-impedance OFF-state automatically if either VCC(A) or VCC(B) drops to GND - simplifies power management firmware |
| 3.6 V-tolerant inputs | Accepts 3.6 V signals even when VCC(A) = 0.8 V - eliminates need for input clamping diodes in mixed-voltage designs |
Applications
| Automotive ADAS Sensor Hub | FPGA-to-Memory Interface |
|---|---|
Use Scenario: Interfacing 1.2 V image sensor outputs with a 2.5 V ADAS processor's parallel data bus. IC Role / Device Role / Timing Role: Bidirectional voltage translator managing 20-bit pixel data flow between mismatched voltage domains. Use Value: Eliminates discrete level shifters, reduces BOM count, and maintains <9 ns propagation delay for real-time frame capture. | Use Scenario: Connecting a 1.8 V FPGA I/O bank to a 3.3 V DDR2 SDRAM controller bus. IC Role / Device Role / Timing Role: Dual-channel transceiver providing independent direction control for address/data/command lines. Use Value: Supports 380 Mbit/s data rates and IOFF shutdown during FPGA configuration, preventing bus contention. |
| Industrial PLC Backplane | Server Baseboard Management |
Use Scenario: Bridging 0.8 V microcontroller GPIOs to 3.3 V fieldbus transceivers in modular I/O modules. IC Role / Device Role / Timing Role: Voltage-translating buffer with suspend mode for hot-plug-safe module insertion/removal. Use Value: IOFF leakage <1 μA prevents backfeeding into unpowered modules; −40 °C to +125 °C rating ensures reliability in cabinet environments. | Use Scenario: Isolating 1.5 V BMC (Baseboard Management Controller) signals from 3.3 V server management EEPROM and fan controllers. IC Role / Device Role / Timing Role: Level-shifting transceiver with independent OE control for selective bus segmentation. Use Value: Enables firmware-controlled power isolation of management peripherals without altering PCB layout or adding MOSFET switches. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage translation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74AVC20T245RGZR | 64-pin VQFN package; identical electrical specs but different thermal profile and soldering requirements | Preferred for thermally constrained, high-density PCBs where TSSOP reflow is problematic | Select when board assembly uses QFN-compatible processes and thermal performance exceeds TSSOP limits |
| 74LVC20T245DGV,118 | Lower max VCC (3.3 V only); no 0.8 V operation; reduced max data rate (240 Mbit/s) | Suitable only for 1.2–3.3 V translation; not viable for sub-1.0 V core interfaces | Choose only if design operates strictly within 1.2–3.3 V range and cost sensitivity outweighs future voltage scalability |
Compared with SN74AVC20T245RGZR and 74LVC20T245DGV,118, the 74AVC20T245DGV,118 uniquely supports 0.8 V operation and delivers 380 Mbit/s performance in the industry-standard TSSOP56 footprint - making it optimal for next-generation low-power embedded systems requiring backward-compatible packaging.
Availability
74AVC20T245DGV,118 is available at Aetrix Electronics and suitable for automotive ADAS sensor hubs, industrial PLC backplanes, and server baseboard management systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74AVC20T245DGV,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 leader in discrete, logic, and PowerMOS semiconductors, serving automotive, industrial, computing, and consumer markets with high-reliability silicon solutions.
The 74AVC20T245DGV,118 belongs to Nexperia's advanced AVC (Advanced Very-low-voltage CMOS) logic family, engineered specifically for ultra-low-voltage bidirectional interface bridging in power-sensitive, mixed-domain digital systems.
FAQ
What voltage levels can the 74AVC20T245DGV,118 translate between?
The 74AVC20T245DGV,118 supports bi-directional translation between any pair of voltages from 0.8 V to 3.6 V on its dual supplies (VCC(A) and VCC(B)), including 0.8 V ↔ 1.2 V, 1.5 V ↔ 2.5 V, and 1.8 V ↔ 3.3 V. Its inputs tolerate up to 3.6 V regardless of supply level, enabling robust interfacing across legacy and next-gen logic families.
Does the 74AVC20T245DGV,118 support partial power-down?
Yes, the 74AVC20T245DGV,118 integrates IOFF circuitry that disables outputs and limits leakage to ±1 μA when either VCC(A) or VCC(B) is at GND. This feature enables safe partial power-down in systems with staggered rail sequencing, such as modular industrial controllers or hot-swappable server components.
What is the maximum data rate supported by the 74AVC20T245DGV,118?
The 74AVC20T245DGV,118 achieves up to 380 Mbit/s when translating between ≥1.8 V and 3.3 V domains. Performance scales with supply voltage: 260 Mbit/s (≥1.1 V ↔ 3.3 V), 210 Mbit/s (≥1.1 V ↔ 1.8 V), and 100 Mbit/s (≥1.1 V ↔ 1.2 V), all verified across −40 °C to +125 °C.
How does the 74AVC20T245DGV,118 handle direction control?
The 74AVC20T245DGV,118 provides two independent direction inputs (1DIR and 2DIR), each controlling one 10-bit channel. A HIGH on 1DIR enables data flow from 1A ports to 1B ports; a LOW enables reverse flow. Direction is latched asynchronously and remains valid during 3-state transitions controlled by 1OE/2OE.
Is the 74AVC20T245DGV,118 pin-compatible with other 20-bit transceivers in the same family?
Yes, the 74AVC20T245DGV,118 shares identical pinout and functionality with 74AVC20T245DGG (TSSOP56, 6.1 mm body) and 74AVC20T245BX (HXQFN60), differing only in package dimensions and thermal characteristics. All variants use the same SOT481-2/SOT364-1 pin mapping for drop-in replacement in existing TSSOP56 layouts.
74AVC20T245DGV,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74AVC
- Package/Case:
- 56-TFSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Logic Type:
- Translation Transceiver
- Number of Elements:
- 2
- Number of Bits per Element:
- 10
- 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:
- 56-TSSOP
74AVC20T245DGV,118 FAQ
1.How can I place an order for 74AVC20T245DGV,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AVC20T245DGV,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 74AVC20T245DGV,118 reliable?
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5.How can I obtain technical support or documentation for 74AVC20T245DGV,118?
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6.How does Aetrix verify that 74AVC20T245DGV,118 is sourced from the original manufacturer or authorized distributors?
All 74AVC20T245DGV,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 74AVC20T245DGV,118 meets industry standards.
7.What is the process for return or replacement of 74AVC20T245DGV,118?
All 74AVC20T245DGV,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74AVC20T245DGV,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 74AVC20T245DGV,118 part is unused and in its original packaging.
Return procedure for 74AVC20T245DGV,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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