MC74LCX245
Low-Voltage CMOS Octal
Transceiver
With 5 V–Tolerant Inputs and Outputs
(3–State, Inverting)
http://onsemi.com
The MC74LCX245 is a high performance, non–inverting octal
transceiver operating from a 2.3 to 3.6 V supply. High impedance TTL
compatible inputs significantly reduce current loading to input drivers
while TTL compatible outputs offer improved switching noise
performance. A VI specification of 5.5 V allows MC74LCX245 inputs
to be safely driven from 5 V devices. The MC74LCX245 is suitable
for memory address driving and all TTL level bus oriented transceiver
applications.
Current drive capability is 24 mA at both A and B ports. The
Transmit/Receive (T/R) input determines the direction of data flow
through the bi–directional transceiver. Transmit (active–HIGH)
enables data from A ports to B ports; Receive (active–LOW) enables
data from B to A ports. The Output Enable input, when HIGH,
disables both A and B ports by placing them in a HIGH Z condition.
MARKING
DIAGRAMS
20
20
1
LCX245
AWLYYWW
1
SO–20
DW SUFFIX
CASE 751D
20
20
1
•
•
•
•
•
•
•
•
Designed for 2.3 to 3.6 V VCC Operation
5 V Tolerant — Interface Capability With 5 V TTL Logic
Supports Live Insertion and Withdrawal
IOFF Specification Guarantees High Impedance When VCC = 0 V
LVTTL Compatible
LVCMOS Compatible
24 mA Balanced Output Sink and Source Capability
20
TSSOP–20
DT SUFFIX
CASE 948E
LCX
245
ALYW
1
20
74LCX245
1
AWLYYWW
1
Near Zero Static Supply Current in All Three Logic States (10
µA)
Substantially Reduces System Power Requirements
•
Latchup Performance Exceeds 500 mA
SO EIAJ–20
M SUFFIX
CASE 967
A
L , WL
Y, YY
W, WW
•
ESD Performance: Human Body Model >2000 V; Machine Model
>200 V
= Assembly Location
= Wafer Lot
= Year
= Work Week
ORDERING INFORMATION
Device
MC74LCX245DW
MC74LCX245DWR2
MC74LCX245DT
MC74LCX245DTEL
MC74LCX245DTR2
MC74LCX245M
MC74LCX245MEL
Package
SO–20
SO–20
TSSOP–20
TSSOP–20
TSSOP–20
SO
EIAJ–20
SO
EIAJ–20
Shipping
38 Units/Rail
1000 Units/Reel
75 Units/Rail
2000 Units/Reel
2500 Units/Reel
40 Units/Rail
2000 Units/Reel
©
Semiconductor Components Industries, LLC, 2000
1
December, 2000 – Rev. 4
Publication Order Number:
MC74LCX245/D
ONSEMI [ ON SEMICONDUCTOR ]
