Product Overview MC74LVXC3245: Configurable Dual Supply Octal Transceiver For complete documentation, see the data sheet Product Description 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. Features • • • • • • • • • 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 TSSOP Packages Flexible VCCB Operating Range Allows B Port and VCCB to Float Simultaneously When OE Is High Functionally Compatible with the 74 Series 245 PIN Pins OE T/R A0-A7 B0-B7 Pb-Free Packages are Available* Part Electrical Specifications Product Compliance Status Channels Output VCC Min (V) VCC Max (V) tpd Max (ns) IO Max (mA) Package Type MC74LVXC3245DTG Pb-free Active 8 3-State 2.3 3.6 9 24 TSSOP-24 Active 8 3-State 2.3 3.6 9 24 TSSOP-24 Active 8 3-State 2.3 3.6 9 24 SOIC-24 Halide free MC74LVXC3245DTRG Pb-free Halide free MC74LVXC3245DWR G Pb-free Halide free For more information please contact your local sales support at www.onsemi.com Created on: 6/30/2016