CJ74LVC4T245BEN

CJ74LVC/LVCH4T245 is a 4-bit dual-supply level-shifting transceiver with 3-state outputs, supporting bidirectional voltage translation. The device can be configured as two 2-bit transceivers or one 4-bit transceiver. Key features include four 2-bit I/O ports (nAn and nBn), a direction control input (nDIR), an output enable input (/nOE), and dual supply pins (VCC(A) and VCC(B)). Both VCC(A) and VCC(B) can operate at any voltage between 1.2V and 5.5V, making the device suitable for level translation between any low-voltage nodes (1.2V, 1.5V, 1.8V, 2.5V, 3.3V, and 5.0V). Pins nAn, /nOE, and nDIR are referenced to VCC(A), while pin nBn is referenced to VCC(B). When nDIR is HIGH, data transmission from nAn to nBn is enabled; when nDIR is LOW, data transmission from nBn to nAn is enabled. The output enable input (/nOE) can be used to disable the outputs, effectively isolating the bus. The device is fully compatible with partial power-down applications via the IOFF feature. The IOFF circuitry disables the outputs, preventing any damaging backflow current when the device is powered down. In suspend mode, when VCC(A) or VCC(B) is at GND level, both the nAn and nBn ports are in a high-impedance off state. The active bus-hold circuit in the CJ74LVCH4T245 holds unused or floating data inputs at a valid logic level.

Applications

• Enterprise & Communications
• Industrial
• Personal Electronics
• Wireless Infrastructure
• Building Automation
• Point of Sale

Key features

• Wide supply voltage range:
• VCC(A): 1.2V to 5.5V
• VCC(B): 1.2V to 5.5V
• Suspend mode
• ±24mA output drive capability (Vcc=3.0V)
• Inputs accept up to 5.5V
• Low power consumption: max Icc of 30uA
• IOFF circuitry enables partial power-down mode operation
• Operating temperature range: -40℃ to +125℃