參數(shù)資料
型號(hào): SDA525X
廠商: SIEMENS AG
英文描述: ICs for Consumer Electronics
中文描述: 消費(fèi)電子集成電路
文件頁(yè)數(shù): 12/143頁(yè)
文件大?。?/td> 1050K
代理商: SDA525X
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SDA 525x
Semiconductor Group
12
1998-04-08
5
Pin Functions (ROM- and ROMless-Version)
Table 1
Pin Functions (ROM- and ROMless-Version)
Symbol
Pin No.
P-SDIP-
52-1
9
8
7
6
5
4
3
2
Pin No.
P-MQFP-
64-1
34
33
31
30
29
28
27
26
Pin No.
P-MQFP-
80-1
56
57
58
59
60
61
62
63
Pin No.
P-LCC-84-
2
48
49
50
51
52
53
54
55
Input (I)
Output (O)
Supply (S)
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
Function
P0.0
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
Port 0 is an 8-bit open drain
bidirectional I/O port. Port 0 pins
that have 1s written to them float; in
this state they can be used as high-
impedance inputs (e.g. for software
driven
I
C Bus).
2
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
23
22
21
20
19
18
17
16
53
52
51
50
48
47
46
44
11
10
9
8
7
6
5
4
84
83
82
81
80
79
78
77
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
Port 1 is an 8-bit bidirectional
multifunctional I/O port with internal
pullup resistors. Port 1 pins that
have 1s written to them are pulled
high by the internal pullup resistors
and in that state can be used as
inputs.
The secondary functions of port 1
pins are:
Port bits P1.0 - P1.5 contain the
6 output channels of the 8-bit pulse
width modulation unit.
Port bits P1.6 - P1.7 contain the two
output channels of the 14-bit pulse
width modulation unit.
P2.0
P2.1
P2.2
P2.3
34
33
32
31
1
63
62
61
67
66
65
64
61
60
59
58
I
I
I
I
P2.0 - P2.3 are working as digital or
analog inputs.
XTAL2
13
40
14
3
O
Output of the inverting oscillator
amplifier.
To drive the device from an external
clock source, XTAL1 should be
driven, while XTAL2 is left open.
XTAL1
12
39
15
4
I
Input to the inverting oscillator
amplifier
RST
15
42
16
5
I
A low level on this pin resets the
processor
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