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參數(shù)資料
| 型號： | 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位單片機的小型通用紅外遙控器 |
| 文件頁數(shù)： | 4/94頁 |
| 文件大小： | 763K |
| 代理商： | KS57C2504 |
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PRODUCT SPECIFICATION
S3C7254
4–4
Table 1. S3C7254 Pin Descriptions
Pin Name
P0.0
P0.1
P0.2
P0.3
Pin Type
I/O
Description
Number
25
26
27
28
Share Pin
4-bit I/O port.
1-bit or 4-bit read/write and test is possible.
Individual pins are software configurable as input or
output.
Individual pins are software configurable as open-
drain or push-pull output.
4-bit pull-up resistors are software assignable; pull-up
resistors are automatically disabled for output pins.
4-bit input port.
1-bit or 4-bit read and test are possible.
The 1-bit unit pull-up resistors are assigned to input
pins by software.
An interrupt is generated by digital input at P1.0,
P1.1.
Same as port 0 except that 8-bit read/write and test is
possible.
K0/
SCK
K1/SO
K2/SI
K3/BUZ
P1.0
P1.1
P1.2
P1.3
I
29
30
31
32
INT0/CIN0
INT1/CIN1
INT2
INT4
P2.0–P2.3
I/O
33–36
–
P3.0
P3.1
P3.2
P3.3
P4.0
P4.1
P4.2
P5.0–P5.7
37
38
39
40
41
42
43
3–10
–
–
LCDSY
LCDCK
CLO
TCL0
TCLO0
SEG32–
SEG39
P0.0/K0
I/O
Same as port 0 except that port 4 is 3-bit I/O port.
O
Output port for 1-bit data
SCK
SO
SI
BUZ
I/O
Serial I/O interface clock signal
25
I/O
I/O
I/O
Serial data output
Serial data input
2 KHz, 4 KHz, 8 KHz or 16 KHz frequency output for
buzzer sound
External interrupt. The triggering edge is selectable.
External interrupts. The triggering edge for INT0 and
INT1 is selectable.
Quasi-interrupt with detection of rising or falling
edges
External interrupts with detection of rising and falling
edges
26
27
28
P0.1/K1
P0.2/K2
P0.3/K3
K0–K3
INT0
INT1
INT2
I/O
I
25–28
29
30
31
P0.0–P0.3
P1.0/CIN0
P1.1/CIN1
P1.2
I
INT4
I
32
P1.3
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