MC74LVXC3245 Datasheet, PDF (6/9 Pages) Motorola, Inc – LOW-VOLTAGE CMOS

MC74LVXC3245
SD(0:15)
PCMCIA 2.0
JEIDA 4.1
COMPATIBLE
CONTROLLER
POWER
SWITCHES
SLOT 0
SLOT 1
5V
3V
VCC VCC
SD(0:15)
VCCA
VCCB
LVXC3245
LVXC3245
SLOT 0
LVXC3245
LVXC3245
SLOT 1
Figure 3. Block Diagram
OPTIONAL
Configurable I/O Application for PCMCIA Cards
The 74LVXC3245 is a dual–supply device well suited for
PCMCIA configurable I/O applications. The LVXC3245
consumes less than 1mW of quiescent power in all modes of
operation, making it ideal for low power notebook designs.
The LVXC3245 meets all PCMCIA I/O voltage requirements
at 5V and 3.3V operation. By tying the VCCB pin to the card
voltage supply, the PCMCIA card will always have rail–to–rail
output swings, maximizing the reliability of the interface.
The VCCA pin must always be tied to a 3.3V power supply.
This voltage connection provides internal references needed
to account for variations in VCCB. When connected as in the
figure above, the LVXC3245 meets all the voltage and
current requirements of the ISA bus standard (IEEE P996).
MOTOROLA
6
LVX Data — Low–Voltage CMOS Logic
BR1492 — Rev 0