MC74LVXC3245

www.DataSheet4U.com MOTOROLA SEMICONDUCTOR TECHNICAL DATA Advance Information Configurable Dual Supply Octal Transceiver with 3-State Outputs for 3V Systems The 74LVXC3245 is a 24–pin dual–supply, octal configurable voltage interface transceiver especially well suited 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 3V–to–5V supply level. The B port is configured to track the VCCB supply level. A 5V level on the VCCB pin will configure the I/O pins at a 5V level and a 3V VCCB will configure the I/O pins at a 3V level. The A port interfaces 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. The Transmit/Receive (T/R) input determines the direction of data flow. Transmit (active–High) enables data from the A port to B port. Receive (active–Low) enables data from the B port to the A port. MC74LVXC3245 LOW–VOLTAGE CMOS LVX DW SUFFIX 24–LEAD PLASTIC WIDE SOIC PACKAGE CASE 751E–04 Bidirectional Interface Between 3V and 3V/5V Buses Control Inputs Compatible with TTL Level Outputs Source/Sink Up to 24mA Guaranteed Simultaneous Switching Noise Level and Dynamic Threshold Performance Available in SOIC and...