The FXL4TD245BQX is a 4-bit dual supply Configurable Translator designed for both uni-directional and bi-directional voltage translation between two logic levels. The device allows translation between voltages as high as 3.6V to as low as 1.1V. The A port tracks the VCCA level and the B port tracks the VCCB level. The device remains in 3-STATE until both VCCs reach active levels allowing either VCC to be powered-up first. Internal power down control circuits place the device in 3-state if either VCC is removed. The transmit/receive (T/R\\) input determines the direction of data flow through the device. The OE\ input, when high, disables both the A and B ports by placing them in a 3-state condition. The FXL4TD245 is designed so that the control pins (T/R\ and OE) are supplied by VCCA.
Fully configurable - Inputs track VCC level
Power-OFF protection
Non-preferential power-up sequencing; either VCC may be powered-up first
Outputs remain in 3-STATE until active VCC level is reached
Outputs switch to 3-STATE if either VCC is at GND
Control inputs (T/R n, OE) levels are referenced to VCCA voltage
