MM74C923N Fairchild Semiconductor, MM74C923N Datasheet - Page 4

• 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

www.fairchildsemi.com
CMOS TO CMOS
V
V
V
V
I
V
V
R
I
I
I
CMOS/LPTTL INTERFACE
V
V
rp
CC
IN(1)
IN(0)
Absolute Maximum Ratings
DC Electrical Characteristics
Min/Max limits apply across temperature range unless otherwise specified
T
T
IN(1)
IN(0)
OUT(1)
OUT(0)
on
IN(0)
OUT(1)
Symbol
Operating Temperature Range
Storage Temperature Range
Power Dissipation (P
Operating V
V
Lead Temperature
V
Voltage at Any Pin
CC
IN(1)
Dual-In-Line
Small Outline
MM74C922, MM74C923
(Soldering, 10 seconds)
Positive-Going Threshold Voltage
at Osc and KBM Inputs
Negative-Going Threshold Voltage
at Osc and KBM Inputs
Logical “1” Input Voltage,
Except Osc and KBM Inputs
Logical “0” Input Voltage,
Except Osc and KBM Inputs
Row Pull-Up Current at Y1, Y2,
Y3, Y4 and Y5 Inputs
Logical “1” Output Voltage
Logical “0” Output Voltage
Column “ON” Resistance at
X1, X2, X3 and X4 Outputs
Supply Current
Osc at 0V, (one Y low)
Logical “1” Input Current
at Output Enable
Logical “0” Input Current
at Output Enable
Except Osc and KBM Inputs
Except Osc and KBM Inputs
Logical “1” Output Voltage
CC
Range
D
Parameter
)
V
CC
0.3V to V
65 C to 150 C
40 C to 85 C
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
I
V
I
O
O
(Note 2)
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
3V to 15V
CC
360 A
360 A
700 mW
500 mW
5V, I
10V, I
15V, I
5V, I
10V, I
15V, I
5V
10V
15V
5V
10V
15V
5V, V
10V
15V
5V, I
10V, I
15V, I
5V, I
10V, I
15V, I
5V, V
10V, V
15V, V
5V
10V
15V
15V, V
15V, V
4.75V
4.75V
4.75V
260 C
0.3V
IN
IN
O
O
18V
IN
O
IN
IN
IN
IN
O
O
O
O
O
O
IN
IN
Conditions
10 A
0.7 mA
0.7 mA
0.5V
0.1 V
10 A
10 A
10 A
1.4 mA
2.1 mA
1.4 mA
2.1 mA
1V
1.5V
10 A
10 A
15V
0V
4
Note 2: “Absolute Maximum Ratings” are those values beyond which the
safety of the device cannot be guaranteed. Except for “Operating Tempera-
ture Range” they are not meant to imply that the devices should be oper-
ated at these limits. The table of “Electrical Characteristics” provides
conditions for actual device operation.
CC
V
CC
12.5
13.5
Min
6.0
9.0
1.4
2.1
3.5
8.0
3.0
0.7
4.5
2.4
9
1.0
1.5
0.005
13.5
0.005
Typ
500
300
200
0.55
3.6
1.4
4.5
1.5
1.1
1.7
6.8
10
3.2
0.5
9
10
22
5
1
2
1400
12.9
Max
700
500
4.3
8.6
2.0
4.0
6.0
1.5
2.5
0.5
1.1
1.9
2.6
1.0
1.5
0.8
2
20
45
1
5
Units
mA
mA
mA
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
A
A
A
A
A