8-Bit Dual-Supply Bus Transceiver with Voltage Translation
- Control inputs VIH/VIL levels are referenced to VCCA
- VCC isolation feature – if either VCC input is at GND,all are in the high-impedance state
- Fully configurable dual-rail design allows each port to operate over the full 1.65V to 5.5V power supply range
- Recommended temperature range:-40°C to +125°C
- Max data rates
420 Mbps (3.3-V to 5-V Translation)
210 Mbps (Translate to 3.3V)
140 Mbps (Translate to 2.5V)
75 Mbps (Translate to 1.8V)
This 8-bit noninverting bus transceiver uses two separate power-supply rails.The GT74LVC8T245 is optimized to operate with VCCA and VCCB set at 1.65V to 5.5V.The A port is designed to track VCCA.VCCA accepts any supply Voltage from 1.65V to 5.5V.The B port is designed to track VCCB. VCCB accepts any supply Voltage from1.65V to 5.5V.This allows for universal low-voltage bidirectional translation between any of the 1.8V,2.5V,3.3V,and 5.5V Voltage nodes.The logic levels of the direction- control (DIR) input and the output-enable (OEB) 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 is always active and have a logic HIGH or LOW level applied to prevent excess ICC and ICCZ. The GT74LVC8T245 is designed so that the control pins are supplied by VCCA.
- Personal electronic
- Industrial
- Enterprise
- Telecom
