Overview
The 74AVC2T245GUX, produced by Nexperia USA Inc., is a 2-bit, dual supply transceiver designed for bidirectional level translation. This device is versatile and can be used either as two 1-bit transceivers or as a single 2-bit transceiver. It features two 2-bit input-output ports (An and Bn), direction control inputs (DIRn), and an output enable input (OE). The dual supply pins (VCC(A) and VCC(B)) can be supplied at any voltage between 0.8 V and 3.6 V, making it suitable for translating between various low voltage nodes such as 0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, and 3.3 V.
Key Specifications
| Parameter | Conditions | Min | Max | Unit |
|---|---|---|---|---|
| Data Input Voltage (VI) | VCCI = 0.8 V | 0.70VCCI | 0.70VCCI | V |
| Data Input Voltage (VI) | VCCI = 1.1 V to 1.95 V | 0.65VCCI | 0.65VCCI | V |
| Data Input Voltage (VI) | VCCI = 2.3 V to 2.7 V | 1.6 | 1.6 | V |
| Data Input Voltage (VI) | VCCI = 3.0 V to 3.6 V | 2 | 2 | V |
| DIRn, OE Input Voltage (VIH) | VCC(A) = 0.8 V | 0.70VCC(A) | 0.70VCC(A) | V |
| DIRn, OE Input Voltage (VIH) | VCC(A) = 1.1 V to 1.95 V | 0.65VCC(A) | 0.65VCC(A) | V |
| DIRn, OE Input Voltage (VIH) | VCC(A) = 2.3 V to 2.7 V | 1.6 | 1.6 | V |
| DIRn, OE Input Voltage (VIH) | VCC(A) = 3.0 V to 3.6 V | 2 | 2 | V |
| Operating Temperature Range | -40 °C | +125 °C | °C | |
| Power Dissipation Capacitance (CPD) | VCC(A) = VCC(B) = 0.8 V to 3.3 V | 0.2 to 14 | pF |
Key Features
- Bidirectional Level Translation: Enables translation between any two voltage levels from 0.8 V to 3.6 V.
- Dual Supply Pins: VCC(A) and VCC(B) can be supplied at different voltages.
- Direction Control: DIRn inputs control the direction of data transmission.
- Output Enable: OE input allows disabling the outputs to isolate the buses.
- High-Speed Operation: Supports data transfer rates up to 500 Mbps.
- Compact Packaging: Available in a 10-pin XQFN package.
Applications
- Mixed Voltage Systems: Ideal for systems that require communication between different voltage domains.
- Interface Translation: Used in translating signals between different voltage levels in various interfaces such as I2C, SPI, and UART.
- Power Management Systems: Useful in power management circuits where voltage translation is necessary.
- Embedded Systems: Suitable for use in embedded systems that require level translation between different components.
Q & A
- What is the primary function of the 74AVC2T245GUX?
The primary function is to enable bidirectional level translation between two different voltage domains.
- What is the voltage range for VCC(A) and VCC(B)?
The voltage range for both VCC(A) and VCC(B) is from 0.8 V to 3.6 V.
- How does the direction control input (DIRn) work?
A HIGH on DIRn allows transmission from An to Bn, while a LOW on DIRn allows transmission from Bn to An.
- What is the purpose of the output enable input (OE)?
The OE input can be used to disable the outputs, effectively isolating the buses.
- What is the maximum data transfer rate supported by the 74AVC2T245GUX?
The device supports data transfer rates up to 500 Mbps.
- In what package is the 74AVC2T245GUX available?
The device is available in a 10-pin XQFN package.
- What is the operating temperature range for the 74AVC2T245GUX?
The operating temperature range is from -40 °C to +125 °C.
- How does the power dissipation capacitance (CPD) vary with voltage?
The CPD varies from 0.2 pF to 14 pF depending on the voltage levels and direction of data transmission.
- What are some common applications of the 74AVC2T245GUX?
Common applications include mixed voltage systems, interface translation, power management systems, and embedded systems.
- Where can I find detailed specifications for the 74AVC2T245GUX?
Detailed specifications can be found in the datasheet available on Nexperia's official website or through distributors like Digi-Key and JAK Electronics.
