SN74LVC16T245-EP Datasheet PDF - TI

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 is designed for asynchronous communication between two data buses. The logic levels of the direction-control (DIR) input and the output-enable (OE) input activate either the B-port outputs or the A-port outputs or place both output ports into the high-impedance mode. The device transmits data from the A bus to the B bus when the B-port outputs are activated, and from the B bus to the A bus when the A-port outputs are activated. The input circuitry on both A and B ports always is active and must have a logic HIGH or LOW level applied to prevent excess ICC and ICCZ.

●The SN74LVC16T245 is designed so that the control pins (1DIR, 2DIR, 1OE, and 2OE) are supplied by VCCA.

●This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.

●The VCC isolation feature ensures that if either VCC input is at GND, then both ports are in the high-impedance state.

●To ensure the high-impedance state during power up or power down, 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.

● Control Inputs VIH and VIL Levels Are

●Referenced to VCCA Voltage

● VCC Isolation Feature – If Either VCC

●Input Is at GND, Both Ports Are in the High-Impedance State

● Overvoltage-Tolerant Inputs and Outputs Allow Mixed-Voltage-Mode Data

●Communications

● Fully Configurable Dual-Rail Design Allows Each Port 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

● 2000-V Human-Body Model (A114-A)

● 200-V Machine Model (A115-A)

● 1000-V Charged-Device Model (C101)