TI SN74LVCZ16245ADLR

The SN74LVCZ16245A is a 16-bit (dual 8-bit) noninverting bus transceiver designed for 2.7 V to 3.6 V VCC operation. The device is designed for asynchronous communication between data buses, with control functions implemented to minimize external timing requirements. The device can be used as two 8-bit transceivers or one 16-bit transceiver, allowing data transmission from bus A to bus B or from bus B to bus A, depending on the logic level of the direction control (DIR) input. The output enable (OE) input can be used to disable the device, effectively isolating the buses. Inputs can be driven by 3.3 V or 5 V devices, allowing the device to be used as a level translator in mixed 3.3 V/5 V system environments. When VCC is between 0 V and 1.5 V, the device is in a high-impedance state during power-up or power-down. To ensure the high-impedance state above 1.5 V, OE should be connected to VCC through a pullup resistor; the minimum value of the resistor is determined by the sink current capability of the driver. The device is characterized for hot-insertion applications with Ioff and power-up 3-state features. The Ioff circuit disables the outputs to prevent damaging backflow current when the device is powered down. The power-up 3-state circuit places the outputs in a high-impedance state during power-up and power-down to prevent driver conflicts.

• Part of the Widebus™ family
• Operating voltage range: 2.7 V to 3.6 V
• Inputs tolerant up to 5.5 V
• Maximum tpd of 3.7 ns at 3.3 V
• Ioff and power-up 3-state support hot insertion
• Mixed-mode signal operation on all ports (5 V I/O at VCC = 3.3 V)
• Latch-up performance exceeds 100 mA per JESD 78 Class II
• ESD protection per JESD 22
• 2000 V Human Body Model (A114-A)
• 1000 V Charged Device Model (C101)