MM74C922 Fairchild, MM74C922 Datasheet - Page 4

• Manufacturer Part Number: MM74C922
• Description: 16-Key Encoder 20-Key Encoder
• Manufacturer: Fairchild

www.fairchildsemi.com
CMOS TO CMOS
V
V
V
V
I
V
V
R
I
I
I
CMOS/LPTTL INTERFACE
V
V
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(1)
IN(0)
OUT(1)
OUT(0)
Symbol
Operating Temperature Range
Storage Temperature Range
Power Dissipation (P
Voltage at Any Pin
Dual-In-Line
Small Outline
MM74C922, MM74C923
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
Logical “0” Output Voltage
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
I
V
I
I
V
I
V
V
O
O
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
CC
CC
360 A
360 A
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
4.75V
0.3V
IN
IN
O
O
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
Operating V
V
Lead Temperature
CC
(Soldering, 10 seconds)
CC
Range
V
CC
12.5
13.5
Min
3.0
6.0
9.0
0.7
1.4
2.1
3.5
8.0
4.5
2.4
9
1.0
1.5
0.005
13.5
0.005
Typ
300
200
500
0.55
3.6
1.4
4.5
1.5
1.1
1.7
6.8
3.2
0.5
10
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
0.4
1.5
0.8
2
20
45
1
5
3V to 15V
260 C
Units
18V
mA
mA
mA
V
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