參數(shù)資料
型號(hào)： KS57C2504
廠商： SAMSUNG SEMICONDUCTOR CO. LTD.
元件分類： 4位微控制器
英文描述： 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER
中文描述： 4位單片機(jī)的小型通用紅外遙控器
文件頁(yè)數(shù)： 5/94頁(yè)
文件大?。?/td> 763K
代理商： KS57C2504
S3C7254
PRODUCT SPECIFICATION
4–5
Table 1. S3C7254 Pin Descriptions (Continued)
Pin Name
CIN0
CIN1
Pin Type
I
Description
Number
29
30
Share Pin
P1.0/INT0
P1.1/INT1
2-channel comparator input.
CIN0: comparator input or external reference input
CIN1: comparator input only.
LCD synchronization clock output for display expan-
sion
LCD clock output for display expansion
Clock output
External clock input for timer/counter 0
Timer/counter 0 clock output
LCD segment signal output
LCD segment signal output
LCDSY
I/O
39
P3.2
LCDCK
CLO
TCL0
TCLO0
SEG32–SEG39
SEG0–SEG29
SEG30–SEG31
COM0–COM7
V
LC1
–V
LC5
I/O
I/O
I/O
I/O
O
O
40
41
42
43
3–10
51–80
1–2
12–19
20–24
P3.3
P4.0
P4.1
P4.2
P5.0–P5.7
–
O
–
LCD common signal output
LCD power supply. Voltage dividing resistors are
assignable by mask option.
Crystal, ceramic or RC oscillator pins for system
clock.
Crystal oscillator pins for subsystem clock.
–
–
X
IN,
X
OUT
–
48, 47
–
XT
IN,
XT
OUT
V
DD
V
SS
–
49, 50
–
–
Main power supply
46
–
–
Ground
11
–
RESET
TEST
I
Chip reset signal input
44
–
I
Chip test signal input (must be connected to V
SS
)
45
–
NOTE:
Pull-up resistors for all I/O ports are automatically disabled if they are configured to output mode.
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