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AT83C5123XXX-PURUM Datasheet(PDF) 11 Page - ATMEL Corporation

Part # AT83C5123XXX-PURUM
Description  C51 Microcontroller with USB and Smart Card Reader Interfaces
Download  208 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT83C5123XXX-PURUM Datasheet(HTML) 11 Page - ATMEL Corporation

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11
AT83R5122, AT8xC5122/23
4202F–SCR–07/2008
Pin Description
Table 2.
Pin Description
Port
Internal
Power
Supply
ESD
I/O
Reset
Level
Alt
Reset
Config
Conf 1
Conf 2
Conf 3
Led
P0.0
30
-
41
-
30
-
VCC
2KV
I/O
Float
AD0
P0
KB_OUT
Push-pull
P0.1
29
-
40
-
29
-
VCC
2KV
I/O
Float
AD1
P0
KB_OUT
Push-pull
P0.2
28
-
39
-
28
-
VCC
2KV
I/O
Float
AD2
P0
KB_OUT
Push-pull
P0.3
27
-
38
-
27
-
VCC
2KV
I/O
Float
AD3
P0
KB_OUT
Push-pull
P0.4
25
-
36
-
25
-
VCC
2KV
I/O
Float
AD4
P0
KB_OUT
Push-pull
P0.5
24
-
35
-
24
-
VCC
2KV
I/O
Float
AD5
P0
KB_OUT
Push-pull
P0.6
23
-
34
-
23
-
VCC
2KV
I/O
Float
AD6
P0
KB_OUT
Push-pull
P0.7
22
-
33
-
22
-
VCC
2KV
I/O
Float
AD7
P0
KB_OUT
Push-pull
CIO
6432
9
4
6432
CVCC
6KV
I/O
0
Port51
CVCC inactive at reset.
ESD tested with a 10μF on CVCC
An external pull-up of 10K is
recommended to support ICC’s
with too weak internal pull-ups.
CC4
3
3
12
7
3
3
CVCC
6KV
I/O
0
Port51
CVCC inactive at reset
ESD tested with a 10μF on CVCC
P1.2
2
2
11
6
2
2
VCC
2KV
I/O
1
CPRES
Port51
Weak & medium pull-up can be
disconnected
CC4
9
5
18
9
9
5
CVCC
6KV
I/O
0
Port51
CVCC inactive at reset
ESD tested with a 10μF on CVCC
CCLK
12
6
21
10
12
6
CVCC
6KV
O
0
Push-pull
CVCC inactive at reset
ESD tested with a 10μF on CVCC
CRST
6
4
15
8
6
4
CVCC
6KV
O
0
Push-pull
CVCC inactive at reset
ESD tested with a 10μF on CVCC
P1.6
47
23
58
-
47
23
VCC
2KV
I/O
1
SS
Port51
P1.7
62
31
7
-
62
31
VCC
2KV
I/O
1
CCLK1
Port51
P2.0
58
-
3
-
58
-
VCC
2KV
I/O
1
A8
Port51
Push-pull
KB_OUT
Input
WPU
P2.1
57
-
2
-
57
-
VCC
2KV
I/O
1
A9
Port51
Push-pull
KB_OUT
Input
WPU
P2.2
56
-
1
-
56
-
VCC
2KV
I/O
1
A10
Port51
Push-pull
KB_OUT
Input
WPU
P2.3
52
-
65
-
52
-
VCC
2KV
I/O
1
A11
Port51
Push-pull
KB_OUT
Input
WPU
P2.4
51
-
64
-
51
-
VCC
2KV
I/O
1
A12
Port51
Push-pull
KB_OUT
Input
WPU
P2.5
50
-
63
-
50
-
VCC
2KV
I/O
1
A13
Port51
Push-pull
KB_OUT
Input
WPU


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