Motorola MC74F537DW, MC74F537N, MC54F537J Datasheet
4-203
FAST AND LS TTL DATA
1-OF-10 DECODER
WITH 3-STATE OUTPUTS
The MC54/74F537 is a one-of-ten decoder/demultiplexer with four active
HIGH BCD inputs and ten mutually exclusive outputs. A polarity control input
determines whether the outputs are active LOW or active HIGH. The
MC54/74F537 has 3-state outputs, and a HIGH signal on the Output Enable
(OE
) input forces all outputs to the high impedance state. Two input enables,
active HIGH E2 and active LOW E
1
, are available for demultiplexing data to
the selected output in either non-inverted or inverted form. Input codes greater
than BCD nine cause all outputs to go to the inactive state (i.e., same polarity
as the P input).
• Demultiplexing Capability
• 3-State Outputs
• Multiple Input Enable for Expansion
• Polarity Control Input
• ESD Protection > 4000 Volts
CONNECTION DIAGRAM DIP (TOP VIEW)
18 17 16 15 14 13
1 2 3 4 5 6
7
20 19
8
V
CC
O
2
O3O4A3A
2
E
2
E
1
O
9
O1O
0
OE
A0A1O5O
6
9 10
GND
12 11
O8O
7
P
MC54/74F537
1-OF-10 DECODER
WITH 3-STATE OUTPUTS
FAST SCHOTTKY TTL
ORDERING INFORMATION
MC54FXXXJ Ceramic
MC74FXXXN Plastic
MC74FXXXDW SOIC
20
1
J SUFFIX
CERAMIC
CASE 732-03
20
1
N SUFFIX
PLASTIC
CASE 738-03
20
1
DW SUFFIX
SOIC
CASE 751D-03
LOGIC SYMBOL
E
1
E
2
OE
O0O1O2O3O4O5O6O7O8O
9
A0A1A2A
3
P
VCC = PIN 20
GND = PIN 10
4 6 7 16 17
15
14
5
3 2 1 19 18 8 9 11 12 13
LOGIC DIAGRAM
A
3
A
2
A
1
A
0
E
1
E
2
P
OE
O0O1O2O3O4O5O6O7O8O
9
Please note that this diagram is provided only for the understanding of logic operations and
should not be used to estimate propagation delays.
4-204
FAST AND LS TTL DATA
MC54/74F537
GUARANTEED OPERATING RANGES
Symbol Parameter Min Typ Max Unit
V
CC
Supply Voltage 54, 74 4.5 5.0 5.5 V
54 –55 25 125
TAOperating Ambient Temperature Range
74 0 25 70
°C
I
OH
Output Current — High 54, 74 –3.0 mA
I
OL
Output Current — Low 54, 74 24 mA
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified)
Limits
Symbol
Parameter
Min Typ Max
Unit
Test Conditions
V
IH
Input HIGH Voltage 2.0 V Guaranteed Input HIGH Voltage
V
IL
Input LOW Voltage 0.8 V Guaranteed Input LOW Voltage
V
IK
Input Clamp Diode Voltage –1.2 V IIN = –18 mA VCC = MIN
54, 74 2.4 V
IOH = –3.0 mA VCC = 4.5 V
VOHOutput HIGH Voltage
74 2.7 V
IOH = –3.0 mA VCC = 4.75 V
V
OL
Output LOW Voltage 0.5 V IOL = 24 mA VCC = MIN
I
OZH
Output OFF Current — HIGH 50 µA V
OUT
= 2.7 V VCC = MAX
I
OZL
Output OFF Current — LOW –50 µA V
OUT
= 0.5 V VCC = MAX
20 µA VCC = MAX, VIN = 2.7 V
IIHInput HIGH Current
0.1 mA VCC = MAX, VIN = 7.0 V
I
IL
Input LOW Current –0.6 mA VCC = MAX, VIN = 0.5 V
I
OS
Output Short Circuit Current (Note 2) –60 –150 mA VCC = MAX, V
OUT
= 0 V
I
CCZ
Power Supply Current 44 66 mA
VCC = MAX: A0–A3, E
1
= GND
OE
, E2, P = HIGH
AC CHARACTERISTICS
54/74F 54F 74F
TA= +25°C
VCC= +5.0 V
CL= 50pF
TA = –55 to +125°C
VCC = 5.0 V ± 10%
CL= 50pF
TA = 0 to 70°C
VCC = 5.0 V ± 10%
CL= 50pF
Symbol
Parameter
Min Typ Max Min Max Min Max
Unit
t
PLH
t
PHL
Propagation Delay
An to O
n
4.0
2.5
14
11
3.5
2.0
19
15
3.5
2.0
16
12
t
PLH
t
PHL
Propagation Delay
E1 to O
n
4.0
3.0
11
11
4.0
3.0
14
14
4.0
3.0
12
12
ns
t
PLH
t
PHL
Propagation Delay
E2 to O
n
6.0
4.0
11.5
11.5
5.0
4.0
15
14.5
5.0
4.0
13
12.5
t
PLH
t
PHL
Propagation Delay
P to O
n
5.0
3.5
16
11.5
5.0
3.5
21
13
4.5
3.5
17
12
ns
t
PZH
t
PZL
Output Enable Time
OE
to O
n
2.5
4.0
7.0
8.0
2.5
4.0
11
10
2.5
4.0
8.0
9.0
t
PHZ
t
PLZ
Output Disable Time
OE
to O
n
1.5
1.5
6.0
6.5
1.0
1.0
8
8
1.0
1.0
7.0
7.0
ns
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