參數資料
型號: 7544
英文描述: 3.3V LDO POSITVE VOLTAGE REGULATOR 2% TOL.
中文描述: 7544Group數據表數據表503K/JUN.25.03
文件頁數: 14/54頁
文件大小: 503K
代理商: 7544
Rev.1.02 2003.06.25 page 14 of 53
7544 Group
PRELIMINARY
Notice: This is not a final specification.
Some parametric limits are subject to change.
Table 5 I/O port function table
Pin
P0
0
/CNTR
1
P0
1
P0
2
P0
3
/TX
OUT
P0
4
P0
7
P1
0
/RxD
P1
1
/TxD
P1
2
/S
____
P1
3
/S
RDY
P1
4
/CNTR
0
P2
0
/AN
0
P2
5
/AN
5
P3
0
P3
3
P3
4
/INT
1
P3
7
/INT
0
Input/output
I/O individual
bits
I/O format
CMOS compatible
input level
CMOS 3-state output
(
Note
)
Non-port function
Key input interrupt
Timer X function output
Timer A function input
Serial I/O function
input/output
Timer X function input/output
A-D conversion input
External interrupt input
Related SFRs
Pull-up control register
Timer X mode register
Timer A mode register
Interrupt edge selection
register
Serial I/O control register
Port P1,P3 control register
Timer X mode register
A-D control register
Pull-up control register
Interrupt edge selection
register
Pull-up control register
Port P1,P3 control register
Diagram No.
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
Note :
Ports P1
0
, P1
2
, P3
4
, and P3
7
are CMOS/TTL level.
Name
I/O port P0
I/O port P1
I/O port P2
I/O port P3
(10)
(11)
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