SN54LS541 データシートの表示（PDF） - Motorola => Freescale
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SN54LS541 Datasheet PDF : 3 Pages
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SN54/74LS540 • SN54/74LS541
(1)
E1 (19)
E2
(2)
D1
(3)
D2
(4)
D3
D4 (5)
(6)
D5
(7)
D6
(8)
D7
(9)
D8
LS540
BLOCK DIAGRAM
(1)
E1 (19)
E2
(18)
Y1
(2)
D1
(17)
Y2
(16)
Y3
(15)
Y4
(14)
Y5
(13)
Y6
(12)
Y7
(11)
Y8
(3)
D2
(4)
D3
D4 (5)
(6)
D5
(7)
D6
(8)
D7
(9)
D8
LS541
(18)
Y1
(17)
Y2
(16)
Y3
(15)
Y4
(14)
Y5
(13)
Y6
(12)
Y7
(11)
Y8
INPUTS
OUTPUTS
E1 E2 D LS540
L LH L
H XX Z
X HX Z
L LL H
L = LOW Voltage Level
H = HIGH Voltage Level
X = Immaterial
Z = High Impedance
LS541
H
Z
Z
L
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified)
Limits
Symbol
Parameter
Min Typ Max Unit
Test Conditions
VIH
Input HIGH Voltage
2.0
V
Guaranteed Input HIGH Voltage for
All Inputs
54
VIL
Input LOW Voltage
74
0.7
Guaranteed Input LOW Voltage for
0.8
V
All Inputs
VIK
VOH
VOL
Input Clamp Diode Voltage
– 0.65 – 1.5
V
VCC = MIN, IIN = – 18 mA
Output HIGH Voltage
54, 74
2.4
3.4
54, 74
2.0
V
VCC = MIN, IOH = – 3.0 mA
V
VCC = MIN, IOH = MAX, VIL = 0.5 V
Output LOW Voltage
54, 74
74
0.25 0.4
0.35 0.5
V
IOL = 12 mA
V
IOL = 24 mA
VCC = VCC MIN,
VIN = VIL or VIH
per Truth Table
VT+–VT– Hysteresis
0.2
0.4
V
VCC = MIN
IOZH
Output Off Current HIGH
20
µA VCC = MAX, VOUT = 2.7 V
IOZL
Output Off Current LOW
– 20
µA VCC = MAX, VOUT = 0.4 V
IIH
Input HIGH Current
20
µA VCC = MAX, VIN = 2.7 V
0.1
mA VCC = MAX, VIN = 7.0 V
IIL
Input LOW Current
– 0.2 mA VCC = MAX, VIN = 0.4 V
IOS
Short Circuit Current (Note 1)
– 40
– 225 mA VCC = MAX
Power Supply Current
Total, Output HIGH
LS540
25
mA
LS541
32
mA
ICC
Total, Output LOW
LS540
LS541
45
mA VCC = MAX
52
mA
Total Output 3-State
LS540
LS541
52
mA
55
mA
Note 1: Not more than one output should be shorted at a time, nor for more than 1 second.
FAST AND LS TTL DATA
5-2
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