Overview
The 74AVC4T245PW-Q100118 is a 4-bit, dual supply transceiver designed by Nexperia, enabling bidirectional level translation between different voltage levels. This device can be used as two 2-bit transceivers or as a single 4-bit transceiver, making it highly versatile for various applications. It supports voltage translation between any of the low voltage nodes such as 0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, and 3.3 V, making it suitable for a wide range of electronic systems.
Key Specifications
| Parameter | Value |
|---|---|
| Type Number | 74AVC4T245PW |
| Product Status | Active |
| VCC(A) (V) | 0.8 - 3.6 |
| VCC(B) (V) | 0.8 - 3.6 |
| Logic Switching Levels | CMOS/LVTTL |
| Output Drive Capability (mA) | ± 12 |
| tpd (ns) | 2.1 |
| Number of Bits | 4 |
| Power Dissipation Considerations | Very low |
| Tamb (°C) | -40 to 125 |
| Rth(j-a) (K/W) | 124 |
| Ψth(j-top) (K/W) | 4.4 |
| Rth(j-c) (K/W) | 53.6 |
| Package Name | TSSOP16 |
Key Features
- Bidirectional Level Translation: Enables translation between any of the low voltage nodes (0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, and 3.3 V).
- Dual Supply Pins: VCC(A) and VCC(B) can be supplied at any voltage between 0.8 V and 3.6 V.
- Direction Control and Output Enable: Direction control input (nDIR) and output enable input (nOE) allow for flexible data transmission and output control.
- Partial Power-Down Capability: Fully specified for partial power-down applications using IOFF circuitry to prevent damaging backflow current.
- Low Power Dissipation: Very low power dissipation considerations.
- High-Impedance State: Both ports enter a high-impedance state when either VCC(A) or VCC(B) is at GND level.
Applications
- Asynchronous Communication: Designed for asynchronous communication between two data buses.
- Voltage Translation: Ideal for systems requiring level translation between different voltage domains.
- Embedded Systems: Suitable for use in various embedded systems where voltage level translation is necessary.
- Industrial Automation: Can be used in industrial automation systems where different voltage levels are encountered.
Q & A
- What is the primary function of the 74AVC4T245PW?
The primary function is to enable bidirectional level translation between different voltage levels.
- What are the supported voltage ranges for VCC(A) and VCC(B)?
Both VCC(A) and VCC(B) can be supplied at any voltage between 0.8 V and 3.6 V.
- How does the direction control input (nDIR) work?
A HIGH on nDIR allows transmission from nAn to nBn, and a LOW on nDIR allows transmission from nBn to nAn.
- What is the purpose of the output enable input (nOE)?
The output enable input (nOE) can be used to disable the outputs, putting the buses in a high-impedance state.
- Is the device suitable for partial power-down applications?
Yes, the device is fully specified for partial power-down applications using IOFF circuitry.
- What is the thermal range for the device?
The device operates within a temperature range of -40°C to 125°C.
- What package type is the 74AVC4T245PW available in?
The device is available in a TSSOP16 package.
- How many bits does the 74AVC4T245PW support?
The device supports 4 bits.
- What are the logic switching levels supported by the device?
The device supports CMOS/LVTTL logic switching levels.
- What is the output drive capability of the device?
The output drive capability is ± 12 mA.
