SN74LXCH8T245PWR

The SN74LXCH8T245 is an 8-bit dual-supply non-inverting bidirectional voltage-level translator with bus-hold circuitry. The Ax pins and control pins (DIR and OE) are referenced to VCCA logic levels, while the Bx pins are referenced to VCCB logic levels. Port A accepts I/O voltages from 1.1V to 5.5V, and Port B accepts I/O voltages from 1.1V to 5.5V. When OE is driven low, a high level on DIR allows data transmission from A to B, and a low level on DIR allows data transmission from B to A. When OE is driven high, both the Ax and Bx pins are placed in a high-impedance state.

Applications

• Eliminates slow or high-noise input signals
• Drives indicator LEDs or buzzers
• Mechanical switch debouncing
• General-purpose I/O level shifting
• Push-pull level translation (UART, SPI, JTAG, etc.)

Key features

• Fully configurable dual supply rail design allows each port to operate from 1.1V to 5.5V
• Robust, glitch-free power supply sequencing
• Supports data rates up to 420Mbps over the 3.3V to 5.0V range
• Bus-hold on data inputs eliminates the need for external pull-up or pull-down resistors
• Schmitt-trigger control inputs accommodate slow or noisy input signals
• Control inputs with integrated static pull-down resistors allow floating control inputs
• High drive strength (up to 32mA at 5V)
• Low power consumption
• 4μA maximum (25℃)
• 12μA maximum (–40℃ to 125℃)
• VCC isolation and VCC disconnect features
• All I/Os go to high-impedance state if either VCC supply falls below 100mV
• Ioff-float supports VCC disconnect operation
• Ioff supports partial power-down mode operation
• Compatible with LVC series level translator control logic (DIR and OE) referenced to VCCA
• Operating temperature range: –40℃ to +125℃
• Latch-up performance exceeds 100mA per JESD 78 Class II
• ESD protection exceeds JESD 22 specifications
• 4000V Human Body Model
• 1000V Charged Device Model