74LVXC3245MTCX Datasheet PDF - Fairchild

●The 74LVXC3245MTCX is a 8-bit dual-supply configurable voltage Interface Transceiver with 3-state outputs. It is suitable for PCMCIA and other real time configurable I/O applications. The VCCA pin accepts a 3V supply level. The A port is a dedicated 3V port. The VCCB pin accepts a 3 to 5V supply level. The B port is configured to track the VCCB supply level respectively. A 5V level on the VCC pin will configure the I/O pins at a 5V level and a 3V VCC will configure the I/O pins at a 3V level. The A port should interface with a 3V host system and the B Port to the card slots. This device will allow the VCCB voltage source pin and I/O pins on the B port to float when OE# is HIGH. This feature is necessary to buffer data to and from a PCMCIA socket that permits PCMCIA cards to be inserted and removed during normal operation.

● Control inputs compatible with TTL level

● Outputs source/sink up to 24mA

● Guaranteed simultaneous switching noise level and dynamic threshold performance

● Implements proprietary EMI reduction circuitry

● Flexible VCCB operating range

● Allows B port and VCCB to float simultaneously when OE# is HIGH

● Functionally compatible with the 74 series 245