MC54/74F125
MC54/74F126
3-STATE QUAD BUFFERS
• High Impedance NPN Base Inputs for Reduced Loading
QUAD BUFFERS, 3-STATE
FAST SHOTTKY TTL
MC54/74F125
VCC
4C
4A
4Y
3C
3A
3Y
14
13
12
11
10
9
8
J SUFFIX
CERAMIC
CASE 632-08
14
1
2
3
4
5
6
7
1C
1A
1Y
2C
2A
2Y
GND
VCC
4C
4A
4Y
3C
3A
3Y
14
13
12
11
10
9
8
1
N SUFFIX
PLASTIC
CASE 646-06
MC54/74F126
14
1
14
1
1
2
3
4
5
6
7
1C
1A
1Y
2C
2A
2Y
GND
D SUFFIX
SOIC
CASE 751A-02
ORDERING INFORMATION
MC54FXXXJ
MC74FXXXN
MC74FXXXD
Ceramic
Plastic
SOIC
GUARANTEED OPERATING RANGES
Symbol
Parameter
VCC
Supply Voltage
TA
Operating Ambient Temperature Range
IOH
Output Current — High
IOL
Output Current — Low
Min
Typ
Max
Unit
54, 74
4.5
5.0
5.5
V
54
–55
25
125
°C
74
0
25
–12
74
–15
54
48
74
64
FAST AND LS TTL DATA
4-83
70
54
mA
mA
MC54/74F125 • MC54/74F126
Function Table MC54/74F125
Inputs
C
Function Table MC54/74F126
Inputs
Output
A
Y
Output
L
L
L
C
H
A
L
Y
L
L
H
H
H
H
H
H
X
Z
L
X
Z
L = LOW Voltage Level
H = HIGH Voltage Level
X = Don’t Care
Z = High Impedance (off)
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified)
Limits
Symbol
Parameter
VIH
Input HIGH Voltage
VIL
Input LOW Voltage
VIK
Input Clamp Diode Voltage
VOH
Min
Typ
Max
2.0
Unit
Test Conditions
V
Guaranteed Input HIGH Voltage
0.8
V
Guaranteed Input LOW Voltage
–1.2
V
IIN = –18 mA
VCC = MIN
54,74
2.4
3.4
V
IOH = –3.0 mA
VCC = 4.50 V
74
2.7
3.4
V
IOH = –3.0 mA
VCC = 4.75 V
54
2.0
V
IOH = –12 mA
VCC = 4.50 V
74
2.0
V
IOH = –15 mA
V
IOL = 48 mA
Output HIGH Voltage
54
0.55
74
0.55
V
IOL = 64 mA
50
µA
VOUT = 2.7 V
VCC = MAX
Output Off Current LOW
–50
µA
VOUT = 0.5 V
VCC = MAX
Input HIGH Current
20
VIN = 2.7 V
VCC = MAX
µA
VIN = 7.0 V
VCC = 0 V
–20
µA
VIN = 0.5 V
VCC = MAX
–225
mA
VOUT = GND
VCC = MAX
mA
VCC = MAX
VOL
Output LOW Voltage
IOZH
Output Off Current
HIGH
IOZL
IIH
100
IIL
Input LOW Current
IOS
Output Short Ciru‘cuit Current Note 2
F125
ICC
F126
–100
ICCH
24
ICCL
40
ICCZ
35
ICCH
30
ICCL
48
ICCZ
39
VCC = MAX
NOTES:
1. For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions for the applicable device type.
2. Not more than one output should be shorted at a time, nor for more than 1 second.
FAST AND LS TTL DATA
4-84
MC54/74F125 • MC54/74F126
AC ELECTRICAL CHARACTERISTICS
Symbol
Parameter
54/74F
54F
74F
TA = +25 °C
TA = 0°C to 70°C
TA = 0°C to + 70°C
VCC = +5.0 V
VCC = 5.0 V ± 10%
VCC = 5.0 V ± 10%
CL = 50 pF
CL = 50 pF
CL = 50 pF
Min
Typ
Max
Min
Max
Min
Max
Unit
1.5
4.0
6.0
1.5
7.5
1.5
6.5
ns
nA to nY
3.0
5.5
7.5
3.0
9.0
3.0
8.0
tPZH
Output Enable Time
3.0
5.5
7.5
3.0
9.5
3.0
8.5
tPZL
to HIGH and LOW level
3.0
6.0
8.0
3.0
10
3.0
9.0
tPHZ
Output Disable Time
1.5
3.5
5.0
1.5
7.0
1.5
6.0
tPLZ
from HIGH and LOW level
1.5
3.5
5.5
1.5
7.0
1.5
6.0
tPLH
Propagation Delay,
1.5
4.0
6.5
1.5
8.0
1.5
7.0
tPHL
nA to nY
3.0
5.5
8.0
3.0
9.5
3.0
8.5
tPZH
Output Enable Time
3.0
6.0
7.5
3.0
9.5
3.0
8.5
tPZL
to HIGH and LOW level
3.0
6.0
8.0
3.0
9.5
3.0
8.5
tPHZ
Output Disable Time
2.0
4.5
6.5
2.0
8.5
2.0
7.5
tPLZ
from HIGH and LOW level
3.0
5.5
7.5
3.0
9.0
3.0
8.0
tPLH
Propagation Delay,
tPHL
F125
F126
FAST AND LS TTL DATA
4-85
ns
ns
ns
ns
ns
Case 751A-02 D Suffix
14-Pin Plastic
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14-Pin Ceramic Dual In-Line
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FAST AND LS TTL DATA
4-86
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◊
FAST AND LS TTL DATA
4-87