深圳市大源实业科技有限公司

• Control Inputs VIH/VIL Levels are Referenced to VCCA Voltage
• VCC Isolation Feature – If Either VCC Input is atGND, Both Ports are in the High-Impedance State
• Overvoltage-Tolerant Inputs and Outputs AllowMixed Voltage-Mode Data Communications
• Fully Configurable Dual-Rail Design Allows EachPort to Operate Over the Full 1.65-V to 5.5-V Power-Supply Range
• Ioff Supports Partial-Power-Down Mode Operation
• Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
• ESD Protection Exceeds JESD 22

This 16-bit noninverting bus transceiver uses two separate configurable power-supply rails. The A port is designed to track VCCA. VCCA accepts any supply voltage from 1.65 V to 5.5 V. The B port is designed to track VCCB. VCCB accepts any supply voltage from 1.65 V to 5.5 V. This allows for universal low-voltage bidirectional translation between any of the 1.8-V, 2.5-V, 3.3-V, and 5-V voltage nodes.

The SN74LVC16T245 device is designed for asynchronous communication between two data buses. The logic levels of the direction-control (DIR) input and the output-enable (OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.