MM74C923N Fairchild Semiconductor, MM74C923N Datasheet - Page 5

• Manufacturer Part Number: MM74C923N
• Description: IC ENCODER 20-KEY 20-DIP
• Manufacturer: Fairchild Semiconductor
• Series: 74Cr
• Type: 20-Key Encoderr

Specifications of MM74C923N

• Circuit: 1 x 9:4
• Independent Circuits: 1
• Current - Output High, Low: 15mA, 16mA
• Voltage Supply Source: Single Supply
• Voltage - Supply: 3 V ~ 15 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Through Hole
• Package / Case: 20-DIP (0.300", 7.62mm)
• Product: Decoders, Encoders, Multiplexers & Demultiplexers
• Logic Family: 74C
• Number Of Bits: 4
• Number Of Lines (input / Output): 8.0 / 5.0
• Propagation Delay Time: 150 ns at 5 V, 80 ns at 10 V, 60 ns at 15 V
• Supply Voltage (max): 15 V
• Supply Voltage (min): 3 V
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 55 C
• Mounting Style: Through Hole
• Number Of Input Lines: 8.0
• Number Of Output Lines: 5.0
• Power Dissipation: 700 mW
• Applications: Switches, Keyboard
• Logic Type: Key Encoder
• No. Of Outputs: 4
• Supply Voltage Range: 3V To 15V
• Logic Case Style: DIP
• No. Of Pins: 20
• Operating Temperature Range: -40°C To +85°C
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 74C923; 74C923N

t
t
t
C
C
OUTPUT DRIVE (See Family Characteristics Data Sheet) (Short Circuit Current)
I
I
I
pd0
0H
H0
SOURCE
I
SINK
SINK
DC Electrical Characteristics
AC Electrical Characteristics
T
Note 3: AC Parameters are guaranteed by DC correlated testing.
Note 4: Capacitance is guaranteed by periodic testing.
SOURCE
IN
OUT
Symbol
Symbol
V
A
, t
, t
, t
OUT(0)
1H
H1
pd1
25 C, C
Propagation Delay Time to
Logical “0” or Logical “1”
from D.A.
Propagation Delay Time from
Logical “0” or Logical “1”
into High Impedance State
Propagation Delay Time from
High Impedance State to a
Logical “0” or Logical “1”
Input Capacitance
3-STATE Output Capacitance
Output Source Current
(P-Channel)
Output Source Current
(P-Channel)
Output Sink Current
(N-Channel)
Output Sink Current
(N-Channel)
L
50 pF, unless otherwise noted
Logical “0” Output Voltage
Parameter
Parameter
I
V
I
V
T
V
T
V
T
V
T
C
V
V
V
R
V
V
V
R
V
V
V
Any Input (Note 4)
Any Output (Note 4)
O
O
A
A
A
A
CC
CC
CC
CC
CC
L
CC
CC
CC
L
CC
CC
CC
L
CC
CC
CC
25 C
25 C
25 C
25 C
50 pF (Figure 1)
10k, C
10k, C
(Note 3)
360 A
360 A
(Continued)
4.75V
5V, V
10V, V
5V, V
10V, V
5V
10V
15V
5V, R
10V, C
15V
5V, R
10V, C
15V
L
L
OUT
OUT
L
L
OUT
OUT
L
L
Conditions
Conditions
10 pF (Figure 2)
50 pF (Figure 2)
10k
10k
50 pF
10 pF
0V,
V
5
0V,
V
CC
CC
,
,
Min
1.75
1.75
Min
8
8
Typ
3.6
Typ
100
16
3.3
60
35
25
65
40
10
15
80
50
55
5
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Max
0.4
Max
200
150
250
125
110
150
7.5
80
90
60
Units
Units
mA
mA
mA
mA
ns
ns
ns
ns
ns
ns
ns
pF
V
ns
ns
pF