Motorola MC74F539DW, MC74F539N Datasheet
4-209
FAST AND LS TTL DATA
DUAL 1-OF-4 DECODER
WITH 3-STATE OUTPUTS
The MC54/74F539 contains two independent decoders. Each accepts two
Address (A0–A1) input signals and decodes them to select one of four
mutually exclusive outputs. A polarity control input (P) determines whether the
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.
• Demultiplexing Capability
• 3-State Outputs
• Two Completely Independent 1-of-4 Decoders
• Input Clamp Diodes Limit High Speed Termination Effects
• 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
2b
O3bA1bA0bE
b
OE
a
E
a
P
a
O1bO
0b
OE
bA0aA1aO3aO2a
9 10
GND
12 11
O
1a
P
b
O
0a
MC54/74F539
DUAL 1-OF-4 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
VCC = PIN 20
GND = PIN 10
A0A
1
P
O0O1O2O
3
E
OE
DECODER a
A0A
1
P
O0O1O2O
3
E
OE
DECODER b
13 6 7
15
14
12 11 9 8
4 17 18
16
5
3 2 1 19
LOGIC DIAGRAM (1/2 SHOWN)
A
1
A
0
E
P
OE
O
0
O
1
O
2
O
3
Please note that this diagram is provided only for the understanding of logic operations and
should not be used to estimate propagation delays.
4-210
FAST AND LS TTL DATA
MC54/74F539
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 VCC = MIN, IIN = –18 mA
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 40 60 mA
VCC = MAX, A0, A1, E = GND
OE
, 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
3.5
3.0
12.5
12.5
3.0
2.5
18.5
16
3.0
2.5
13.5
13
ns
t
PLH
t
PHL
Propagation Delay
E
to O
n
3.0
3.0
11
11
2.5
3.0
14
13.5
3.0
3.0
12
11.5
ns
t
PLH
t
PHL
Propagation Delay
P to O
n
4.0
3.5
9.5
9.5
3.5
3.0
12.5
11.5
3.5
3.0
10.5
10
ns
t
PLH
t
PHL
Propagation Delay
P to O
n
5.0
3.0
14.5
9.0
4.0
3.0
19.5
11.5
4.0
3.0
15.5
9.5
ns
t
PZH
t
PZL
Output Enable Time
OE
to O
n
2.5
4.0
7.5
10
2.0
3.5
10.5
13.5
2.0
3.5
8.5
11.5
t
PHZ
t
PLZ
Output Disable Time
OE
to O
n
1.5
2.0
6.0
8.0
1.0
1.5
7.5
9.5
1.0
1.5
6.5
8.5
ns
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