Product Overview

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
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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