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S3C9688 Datasheet(Fiches technique) 6 Page - Samsung semiconductor

Numéro de pièce S3C9688
Description  8-bit single-chip CMOS microcontrollers
Télécharger  209 Pages
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Fabricant  SAMSUNG [Samsung semiconductor]
Site Internet  http://www.samsung.com/Products/Semiconductor
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 6 page
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PRODUCT OVERVIEW
S3C9688/P9688
1-6
PIN DESCRIPTIONS
Table 1-1. S3C9688/P9688 Pin Descriptions
Pin Names
Pin
Type
Pin
Description
Circuit
Number
Pin
Numbers
Share
Pins
P0.0– P0.7
I/O
Bit-programmable I/O port for Schmitt trigger input or open-
drain output. Port0 can be individually configured as external
interrupt inputs. Pull-up resistors are assignable by software.
B
36– 29
(30– 23)
INT2
P1.0– P1.7
I/O
Bit-programmable I/O port for Schmitt trigger input or open-
drain output. Pull-up resistors are assignable by software.
B
28– 21
(22– 15)
P2.0– P2.7
I/O
Bit-programmable I/O port for Schmitt trigger input or open-
drain output. Port2 can be individually configured as external
interrupt inputs. Pull-up resistors are assignable by software.
B
3– 10
(41– 44, 1– 4)
INT0
P3.0– P3.3
I/O
Bit-programmable I/O port for Schmitt trigger input, open-
drain or push -pull output. P3.3 can be used to system clock
output (CLO) pin.
C
2, 1, 42, 41
(40– 37)
P3.3/CLO
P4.0– P4.3
I/O
Bit-programmable I/O port for Schmitt trigger input or open-
drain output or push -pull output. Port4 can be individually
configured as external interrupt inputs. In output mode, pull-
up resistors are assignable by software. But in input mode,
pull-up resistors are fixed.
D
16, 17, 19, 20
(10, 11, 13, 14)
INT1
D+/PS2 D-
/PS2
I/O
Programmable port for
USB interface
or PS2 interface.
40– 39
(36– 35)
3.3 V
OUT
3.3 V output from internal voltage regulator
38 (34)
X
IN, XOUT
System clock input and output pin (crystal/ceramic oscillator,
or external clock source)
14, 13
(8, 7)
INT0
INT1
INT2
I
External interrupt for bit-programmable port0, port2 and port4
pins when set to input mode.
3-10, 16,17, 19,
20, 29-36
(30-23, 41-44, 1-
4, 10, 11, 13, 14)
PORT2/
PORT4/
PORT0
RESET
I
RESET signal input pin. Input with internal pull-up resistor.
A
18 (12)
TEST
I
Test signal input pin (for factory use only; connected to VSS)
15 (9)
V
DD
Power input pin
11 (5)
V
SS
Ground input pin
12, (6)
NC
No connection
37 (31,32, 33)
NOTE:
Pin numbers shown in parenthesis '( )' are for the 44-QFP package; others are for the 42-SDIP package.
PIN CIRCUITS DIAGRAMS
Table 1-2. Pin Circuit Assignments for the S3C9688/P9688
Circuit Number
Circuit Type
S3C9688/P9688 Assignments
A
I
RESET signal input
B
I/O
Ports 0, 1, and 2
C
I/O
Port 3
D
I/O
Port 4




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