74F245 Просмотр технического описания (PDF) - Philips Electronics
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74F245 Datasheet PDF : 10 Pages
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Philips Semiconductors
Octal transceiver (3-State)
Product specification
74F245
LOGIC DIAGRAM
A0
A1
A2
A3
A4
A5
A6
A7
2
3
4
5
6
7
8
9
OE 19
1
T/R
VCC = Pin 20
GND = Pin 10
18
B0
17
B1
16
B2
15
B3
14
B4
13
B5
12
B6
11
B7
SF00201
FUNCTION TABLE
INPUTS
OE
T/R
L
L
L
H
H
X
H = High voltage level
L = Low voltage level
X = Don’t care
Z = High impedance “off” state
OUTPUTS
Bus B data to Bus A
Bus A data to Bus B
Z
ABSOLUTE MAXIMUM RATINGS
(Operation beyond the limits set forth in this table may impair the useful life of the device.
Unless otherwise noted these limits are over the operating free-air temperature range.)
SYMBOL
PARAMETER
VCC
VIN
IIN
VOUT
IOUT
Supply voltage
Input voltage
Input current
Voltage applied to output in High output state
Current applied to output in Low output state
A0–A7
B0–B7
Tamb
Tstg
Operating free-air temperature range
Storage temperature range
RECOMMENDED OPERATING CONDITIONS
SYMBOL
PARAMETER
MIN
VCC
Supply voltage
VIH
High-level input voltage
VIL
Low-level input voltage
IIK
Input clamp current
IOH
High-level output current
4.5
2.0
A0–A7
B0–B7
IOL
Low-level output current
A0–A7
B0–B7
Tamb
Operating free-air temperature range
0
RATING
–0.5 to +7.0
–0.5 to +7.0
–30 to +5
–0.5 to +5.5
48
128
0 to +70
–65 to +150
LIMITS
NOM
5.0
MAX
5.5
0.8
–18
–3
–15
24
64
+70
UNIT
V
V
mA
V
mA
mA
°C
°C
UNIT
V
V
V
mA
mA
mA
mA
mA
°C
November 15, 1994
3
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