MC74FXXXDW [MOTOROLA]
DUAL 1-OF-4 DECODER WITH 3-STATE OUTPUTS;
| 型号： | MC74FXXXDW |
| 厂家： | 
MOTOROLA |
| 描述： | DUAL 1-OF-4 DECODER WITH 3-STATE OUTPUTS 输出元件 |
| 文件： | 总3页 (文件大小：83K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MC54/74F539
DUAL 1-OF-4 DECODER
WITH 3-STATE OUTPUTS
The MC54/74F539 contains two independent decoders. Each accepts two
Address (A –A ) input signals and decodes them to select one of four
0
1
DUAL 1-OF-4 DECODER
WITH 3-STATE OUTPUTS
mutuallyexclusiveoutputs. Apolaritycontrolinput(P)determineswhetherthe
outputs are active HIGH (P = L) or active LOW (P = H). An active LOW input
Enable (E) is available for data demultiplexing; data is routed to the selected
output in non-inverted form in the active LOW mode or in inverted form in the
active HIGH mode. A HIGH Signal on the active LOW Output Enable (OE)
input forces the 3-state outputs to the high impedance state.
FAST SCHOTTKY TTL
• Demultiplexing Capability
• 3-State Outputs
• Two Completely Independent 1-of-4 Decoders
• Input Clamp Diodes Limit High Speed Termination Effects
• ESD Protection > 4000 Volts
J SUFFIX
CERAMIC
CASE 732-03
20
CONNECTION DIAGRAM DIP (TOP VIEW)
1
V
O
A
A
E
E
OE
P
O
O
1a
CC
20
3b
19
1b
18
0b
17
b
a
a
a
0a
12
16
15
14
13
11
N SUFFIX
PLASTIC
CASE 738-03
20
1
DW SUFFIX
SOIC
CASE 751D-03
1
2
3
4
5
6
8
9
10
7
20
O
O
O
P
OE
A
A
O
O GND
2a
2b
1b
0b
b
b
0a
1a
3a
1
LOGIC DIAGRAM (1/2 SHOWN)
A
A
1
ORDERING INFORMATION
MC54FXXXJ
MC74FXXXN
Ceramic
Plastic
0
MC74FXXXDW SOIC
E
P
LOGIC SYMBOL
13
6
7
P
A
A
1
0
15
14
E
DECODER a
OE
O
O
O
O
0
1
2 3
12 11
9
8
V
= PIN 20
CC
GND = PIN 10
4
17 18
P
A
A
0 1
OE
16
5
E
DECODER b
O
O
O
O
3
OE
0
1
2
O
O
O
O
0
1
2
3
19
Please note that this diagram is provided only for the understanding of logic operations and
should not be used to estimate propagation delays.
3
2
1
FAST AND LS TTL DATA
4-209
MC54/74F539
GUARANTEED OPERATING RANGES
Symbol
Parameter
Min
4.5
–55
0
Typ
5.0
25
Max
5.5
Unit
V
CC
Supply Voltage
54, 74
54
V
125
70
T
A
Operating Ambient Temperature Range
°C
74
25
I
I
Output Current — High
Output Current — Low
54, 74
54, 74
–3.0
24
mA
mA
OH
OL
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified)
Limits
Min
Typ
Max
Symbol
Parameter
Input HIGH Voltage
Unit
V
Test Conditions
V
V
V
2.0
Guaranteed Input HIGH Voltage
Guaranteed Input LOW Voltage
IH
Input LOW Voltage
0.8
V
IL
Input Clamp Diode Voltage
–1.2
V
V
= MIN, I = –18 mA
IN
IK
CC
OH
OH
54, 74
74
2.4
2.7
V
I
I
I
= –3.0 mA
= –3.0 mA
V
CC
V
CC
V
CC
V
CC
V
CC
= 4.5 V
= 4.75 V
= MIN
V
OH
Output HIGH Voltage
V
V
OL
Output LOW Voltage
0.5
50
V
= 24 mA
OL
I
I
Output OFF Current — HIGH
Output OFF Current — LOW
µA
µA
µA
mA
mA
mA
V
V
V
V
V
V
V
= 2.7 V
= 0.5 V
= MAX
= MAX
OZH
OZL
OUT
OUT
–50
20
= MAX, V = 2.7 V
IN
CC
CC
CC
CC
CC
I
IH
Input HIGH Current
Input LOW Current
0.1
= MAX, V = 7.0 V
IN
I
I
–0.6
–150
= MAX, V = 0.5 V
IN
IL
Output Short Circuit Current (Note 2)
Power Supply Current
–60
= MAX, V
= 0 V
OS
OUT
= MAX, A , A , E = GND
0
1
I
40
60
mA
CCZ
OE, P = HIGH
AC CHARACTERISTICS
54/74F
54F
= –55 to +125°C
74F
T
V
C
= +25°C
T
V
T = 0 to 70°C
A
A
A
= +5.0 V
= 50 pF
= 5.0 V ± 10%
V
= 5.0 V ± 10%
CC
L
CC
C
CC
C
= 50 pF
= 50 pF
L
L
Min
Typ
Max
Min
Max
Min
Max
Symbol
Parameter
Propagation Delay
Unit
t
t
3.5
3.0
12.5
12.5
3.0
2.5
18.5
16
3.0
2.5
13.5
13
PLH
PHL
ns
A
n
to O
n
t
t
Propagation Delay
E to O
3.0
3.0
11
11
2.5
3.0
14
13.5
3.0
3.0
12
11.5
PLH
PHL
ns
ns
ns
n
t
t
Propagation Delay
P to O
4.0
3.5
9.5
9.5
3.5
3.0
12.5
11.5
3.5
3.0
10.5
10
PLH
PHL
n
t
t
Propagation Delay
P to O
5.0
3.0
14.5
9.0
4.0
3.0
19.5
11.5
4.0
3.0
15.5
9.5
PLH
PHL
n
t
t
Output Enable Time
OE to O
2.5
4.0
7.5
10
2.0
3.5
10.5
13.5
2.0
3.5
8.5
11.5
PZH
PZL
n
ns
t
t
Output Disable Time
OE to O
1.5
2.0
6.0
8.0
1.0
1.5
7.5
9.5
1.0
1.5
6.5
8.5
PHZ
PLZ
n
FAST AND LS TTL DATA
4-210
MC54/74F539
TRUTH TABLE (each half)
Inputs
Outputs
OE
H
E
X
H
A
A
O
O
O
O
3
Function
High Impedance
Disable
1
0
0
1
2
X
X
Z
Z
Z
Z
L
X
X
O = P
n
L
L
L
L
L
L
L
L
L
L
H
H
L
H
L
H
L
L
L
L
H
L
L
L
H
L
L
L
L
Active HIGH
Output
(P = L)
H
L
H
L
L
L
L
L
L
L
L
L
L
H
H
L
H
L
L
H
H
H
H
L
H
H
H
H
L
H
H
H
L
Active LOW
Output
(P = H)
H
H
H = HIGH Voltage Level
L = LOW Voltage Level
X = Don’t Care
Z = High Impedance
FAST AND LS TTL DATA
4-211
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