MC54F245 Motorola, MC54F245 Datasheet
MC54F245
Manufacturer Part Number
MC54F245
Description
OCTAL BIDIRECTIONAL TRANSCEIVER
Manufacturer
Motorola
Datasheet
1.MC54F245.pdf
(2 pages)
www.DataSheet4U.com
3
OCTAL BIDIRECTIONAL
TRANSCEIVER WITH
3-STATE INPUTS/OUTPUTS
3-state outputs and is intended for bus-oriented applications. Current sinking
capability is 24 mA at the A ports and 64 mA at the B ports. The Transmit/Re-
ceive (T/R) input determines the direction of data flow through the bidirectional
transceiver. Transmit (active HIGH) enables data from A ports to B ports; Re-
ceive (active LOW) enables data from B ports to A ports. The Output Enable
input, when HIGH, disables both A and B ports by placing them in a high-Z
condition.
FUNCTION TABLE
GUARANTEED OPERATING RANGES
OE
V CC
T A
I OH
I OL
I OL
I OH
I OL
H
L
L
The MC54/74F245 contains eight noninverting bidirectional buffers with
Inputs
Noninverting Buffers
Bidirectional Data Path
B Outputs Sink 64 mA
ESD > 4000 Volts
Symbol
T/R
V CC
H
X
L
T/R
20
1
Bus B Data to Bus A
Bus A Data to Bus B
High-Z State
A 0
19
OE
Supply Voltage
Operating Ambient Temperature Range
Output Current — High
Output Current — Low
Output Current — Low
Output Current — High
Output Current — Low
2
CONNECTION DIAGRAM (TOP VIEW)
Output
18
B 0
A 1
3
A 2
B 1
17
4
B 2
16
A 3
5
H = HIGH Voltage Level
L = LOW Voltage Level
X = Don’t Care
Parameter
A 4
B 3
15
6
B 4
A 5
14
7
A n Outputs
A n Outputs
A n Outputs
B n Outputs
B n Outputs
FAST AND LS TTL DATA
B 5
13
A 6
8
A 7
B 6
12
9
4-115
GND
B 7
10
11
54, 74
54, 74
54
74
74
54
54
74
54
74
Min
–55
4.5
0
20
20
TRANSCEIVER WITH 3-STATE
20
1
1
OCTAL BIDIRECTIONAL
MC54/74F245
ORDERING INFORMATION
MC54FXXXJ
MC74FXXXN
MC74FXXXDW
FAST SCHOTTKY TTL
INPUTS/OUTPUTS
1
Typ
5.0
25
25
Max
–3.0
125
–12
–15
5.5
70
24
20
48
64
CASE 751D-03
Ceramic
Plastic
SOIC
DW SUFFIX
CASE 732-03
CASE 738-03
CERAMIC
SOIC
J SUFFIX
N SUFFIX
PLASTIC
Unit
mA
mA
mA
mA
mA
V
C
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MC54F245 Summary of contents
Page 1
OCTAL BIDIRECTIONAL TRANSCEIVER WITH 3-STATE INPUTS/OUTPUTS The MC54/74F245 contains eight noninverting bidirectional buffers with 3-state outputs and is intended for bus-oriented applications. Current sinking capability the A ports and the B ...
Page 2
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified) Symbol Parameter V IH Input HIGH Voltage V IL Input LOW Voltage V IK Input Clamp Diode Voltage V OH Output HIGH Voltage Outputs V OH Output HIGH Voltage, ...