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S3C9644 Datasheet(PDF) 10 Page - Samsung semiconductor

Part # S3C9644
Description  SAM87RI family of 8-bit single-chip CMOS microcontrollers
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Manufacturer  SAMSUNG [Samsung semiconductor]
Direct Link  http://www.samsung.com/Products/Semiconductor
Logo SAMSUNG - Samsung semiconductor

S3C9644 Datasheet(HTML) 10 Page - Samsung semiconductor

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PRODUCT OVERVIEW
S3C9644/C9648/P9648
1-10
APPLICATION CIRCUIT
XOUT
KEYBOARD
MATRIX
0
1
2
3
15
0
1
2
3
7
XIN
VSS1
VDD
5V
RESET
H
O
S
T
DP
DM
S3C9644
S3C9648
S3P9648
5V
D+/PS2
D-/PS2
NOTE:
Port4 can use expend keyboard MATRIX.
D+/PS2, D-/PS2 can use PS2 keyboard interface (see PS2CONINT, page 4-25).
Port 4.2, 4.3 can use PS2 mouse interface.
Port 3 can use LED direct drive.
Figure 1-8. Keyboard Application Circuit Diagram


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