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MC74LVX4245_11 Datasheet, PDF (1/10 Pages) ON Semiconductor – Dual Supply Octal Translating Transceiver | |||
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MC74LVX4245
Dual Supply Octal
Translating Transceiver
with 3âState Outputs
The 74LVX4245 is a 24âpin dualâsupply, octal translating
transceiver that is designed to interface between a 5.0 V bus and a 3.0 V
bus in a mixed 3.0 V / 5.0 V supply environment such as laptop
computers using a 3.3 V CPU and 5.0 V LCD display. The A port
interfaces with the 5V bus; the B port interfaces with the 3.0 V bus.
The Transmit/Receive (T/R) input determines the direction of data
flow. Transmit (activeâHigh) enables data from the A port to the B
port. Receive (activeâLow) enables data from the B port to the A port.
The Output Enable (OE) input, when High, disables both A and B
ports by placing them in 3âState.
Features
⢠Biâdirectional Interface Between 5.0 V and 3.0 V Buses
⢠Control Inputs Compatible with TTL Level
⢠5.0 V Data Flow at A Port and 3.0 V Data Flow at B Port
⢠Outputs Source/Sink 24 mA at 5.0 V Bus and 12 mA at 3.0 V Bus
⢠Guaranteed Simultaneous Switching Noise Level and Dynamic
Threshold Performance
⢠Available in SOIC and TSSOP Packages
⢠Functionally Compatible with the 74 Series 245
⢠These Devices are PbâFree and are RoHS Compliant
VCCB VCCB OE B0 B1 B2 B3 B4 B5 B6 B7 GND
24 23 22 21 20 19 18 17 16 15 14 13
1 2 3 4 5 6 7 8 9 10 11 12
VCCA T/R A0 A1 A2 A3 A4 A5 A6 A7 GND GND
Figure 1. 24âLead Pinout
(Top View)
http://onsemi.com
24
1
MARKING
DIAGRAMS
24
SOICâ24
DW SUFFIX
CASE 751E
LVX4245
AWLYYWWG
1
24
24
1
TSSOPâ24
DT SUFFIX
CASE 948H
LVX
4245G
ALYW
1
LVX4245
A
WL, L
Y
WW, W
G or G
= Specific Device Code
= Assembly Location
= Wafer Lot
= Year
= Work Week
= PbâFree Package
(Note: Microdot may be in either location)
PIN NAMES
Pins
Function
OE
T/R
A0âA7
B0âB7
Output Enable Input
Transmit/Receive Input
Side A 3âState Inputs or 3âState
Outputs
Side B 3âState Inputs or 3âState
Outputs
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 5 of this data sheet.
© Semiconductor Components Industries, LLC, 2011
1
May, 2011 â Rev. 5
Publication Order Number:
MC74LVX4245/D
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