Description

The 74AVC4T774 device is 4-bit, dual supply transceiver that enables bi-directional level translation, designed for asynchronous communication between two data buses. It has four 1-bit input-output ports (An and Bn), 4 direction control input (DIRn), an output enable input (OE) and dual supply pins (VCCA and VCCB). Both VCCA and VCCB can be supplied at any voltage features between 0.8V and 3.6V, making the device suitable for translating between any of the low voltage nodes (0.8V, 1.2V, 1.5V, 1.8V, 2.5V and 3.3V). Pins An, OE and DIRn are referenced to VCCA and pins Bn are referenced to VCCB. A HIGH on DIRn allows transmission from An to Bn and a LOW on DIRn allows transmission from Bn to An. The output enable input (OE) can be used to disable the outputs so the buses are effectively isolated. The device is fully specified for partial power-down applications using IOFF. The IOFF circuitry disables the output, preventing any damaging backflow current through the device when it is powered down. In suspend mode when either VCCA or VCCB are at GND level, both An and Bn are in the high-impedance OFF-state.

The 74AVC4T774 is available in TSSOP-16 package and is specified for operation from -40°C to +125°C among all supply voltages. The wide temperature ranges and high ESD tolerance facilitate its use in harsh applications.

Feature(s)

Supply Voltage Range: VCCA/VCCB: from 0.8V to 3.6V
Max Data Rates:
- 380Mbps (1.8V to 3.3V Translation)
- 200Mbps (< 1.8V to 3.3V Translation)
- 200Mbps (Translate to 2.5V or 1.8V)
- 150Mbps (Translate to 1.5V)
- 100Mbps (Translate to 1.2V)
- 50Mbps (Translate to 0.8V-1.1V)
High Drive Strength (±12mA at 3.3V)
Each Channel Has an Independent DIR Control Input
IOFF Supports Partial-Power-Down Mode Operation
ESD Protection Exceeds JESD 22
- Exceeds 8000V Human Body Model (A114)
- Exceeds 1000V Charged Device Model (C101)
Latchup Exceeds 100mA per JESD 78, Class II
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/104/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative. https://www.diodes.com/quality/product-definitions/

Application(s)

Personal electronics
Industrial
Enterprises
Telecoms

Specifications & Technical Documents

Product Parameters

Compliance (Only Automotive Supports PPAP)	Standard
Translation From (V)	0.8 to 3.6
Translation To (V)	0.8 to 3.6
Max Signal Rate	380Mbps
Bits Needed	4
Auto Direction Sensing?	No
Shift	DIR-Control
Prop Delay (ns)	2.8
Ambient or Junction Temperature (°C)	-40 to 125

Technical Documents

Recommended Soldering Techniques

TN1.pdf

Additional Technical Documents are available upon request:
Application information, Evaluation board, and Other technical documents

Request Documents

Purchase & Availability

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Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN #	Issue Date	Implementation Date	Subject
PCN-2770	2025-10-30	2025-10-30	Add Fab Site Code, Country of Diffusion (COD) and Assembly Site Origin (ASO) on Product and Shipping Labels for all Diodes Products

74AVC4T774