74ALS240AN 查看數據表（PDF） - Philips Electronics
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74ALS240AN Datasheet PDF : 9 Pages
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Philips Semiconductors
Octal inverter buffer (3-State)
Product specification
74ALS240A/
74ALS240A-1
LOGIC DIAGRAM
2
Ia0
18
Ya0
17
Ib0
4
Ia1
16
Ya1
15
Ib1
6
Ia2
8
Ia3
14
Ya2
12
Ya3
13
Ib2
11
Ib3
OEa 1
OEb 10
VCC = Pin 20
GND = Pin 10
3
Yb0
5
Yb1
7
Yb2
9
Yb3
FUNCTION TABLE
INPUTS
OEa
Ia
OEb
Ib
L
L
L
L
L
H
L
H
H
X
H
X
H = High voltage level
L = Low voltage level
X = Don’t care
Z = High impedance “off” state
OUTPUTS
Ya
Yb
H
H
L
L
Z
Z
SF00323
ABSOLUTE MAXIMUM RATINGS
(Operation beyond the limit 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
All versions
-1 version
Tamb
Tstg
Operating free-air temperature range
Storage temperature range
RECOMMENDED OPERATING CONDITIONS
SYMBOL
PARAMETER
VCC
Supply voltage
VIH
High-level input voltage
VIL
Low-level input voltage
IIK
Input clamp current
IOH
High-level output current
IOL
Low-level output current
Tamb
Operating free-air temperature range
NOTE:
1. The 48mA limit applies only under the condition of VCC = 5.0V ±5%.
All versions
-1 version
RATING
–0.5 to +7.0
–0.5 to +7.0
–30 to +5
–0.5 to VCC
48
96
0 to +70
–65 to +150
UNIT
V
V
mA
V
mA
mA
°C
°C
LIMITS
MIN NOM MAX
4.5
5.0
5.5
2.0
0.8
–18
–15
24
48 1
0
+70
UNIT
V
V
V
mA
mA
mA
mA
°C
1991 Feb 08
3
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