DM-COP8/20D National Semiconductor, DM-COP8/20D Datasheet - Page 230

• Manufacturer Part Number: DM-COP8/20D
• Description: CABLE FOR DEBUG MODULE 20-DIP
• Manufacturer: National Semiconductor

Specifications of DM-COP8/20D

• Accessory Type: 20-DIP Target Cable
• For Use With/related Products: MetaLink Debug Module
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: *DM-COP8/20D

The COP8SAC7 microcontroller can be used to cost-effectively provide a solution for a
laptop keyboard. With only a few passive components, the device can accomplish the
complete keyboard scan function. The same principles can be applied to all types of
keyboards (i.e. desktop keyboards) or data input devices. With low power consumption
being the most important design criteria, the device offers the power saving Multi-Input
Wakeup mode.
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COP8SAx7 APPLICATION IDEAS
V
CC
Figure 4-21 Laptop/Notebook Keyboard Schematics
V
GND
CK0
CK1
RESET
CC
V
D6
CC
4
NUM
LOCK
D7
3
WD
SCROLL
LOCK
G0
V
2
CC
V
G3
D5
CC
1
C4
C5
C6
C7
C0
C1
C2
C3
G2
G4
G5
D0
D1
D2
D3
D4
CAPS
LOCK
L0
L1
L2
L3
L4
L5
L6
L7
J2
COL 1
DATA
CLOCK
ROW 16
COL 1
COL 8
ROW 1
V
CC
J1
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
6
2
4
1
3
6
J3
J4