參數(shù)資料
型號(hào)： EM78P447SBWM
廠商： ELAN Microelctronics Corp .
英文描述： 8-BIT MICRO-CONTROLLER
中文描述： 8位微控制器
文件頁數(shù)： 6/55頁
文件大?。?/td> 1730K
代理商： EM78P447SBWM
EM78P447S
OTP ROM
3. PIN ASSIGNMENT
TCC
VDD
NC
Vss
/INT
P50
P51
P53
P60
P61
P62
P63
P64
P52
/RESET
OSCI
OSCO
P77
P76
P75
P74
P72
P71
P70
P67
P66
P65
P73
E
E
1
2
3
4
5
6
7
8
9
10
11
12
14
13
26
25
24
23
22
21
20
19
18
17
29
30
27
28
P55
P54
P56
P57
15
16
31
32
TCC
VDD
NC
Vss
/INT
P50
P51
P53
P60
P61
P62
P63
P64
P52
/RESET
OSCI
OSCO
P77
P76
P75
P74
P72
P71
P70
P67
P66
P65
P73
E
E
1
2
3
4
5
6
7
8
9
10
11
12
14
13
26
25
24
23
22
21
20
19
18
17
16
15
27
28
E
TCC
VDD
Vss
/INT
P50
P51
P53
P60
P61
P62
P63
P64
Vss
P52
/RESET
OSCI
OSCO
P77
P76
P75
P74
P72
P71
P70
P67
P66
P65
P73
1
2
3
4
5
6
7
8
9
10
11
12
14
13
26
25
24
23
22
21
20
19
18
17
16
15
27
28
Fig. 1 Pin Assignment
Table 1 EM78P447SAP and EM78P447SAM Pin Description
Symbol Pin No.
VDD
Type
-
Function
2
* Power supply.
* XTAL type: Crystal input terminal or external clock input pin.
* RC type: RC oscillator input pin.
* XTAL type: Output terminal for crystal oscillator or external clock input pin.
* RC type: Instruction clock output.
* External clock signal input.
* The real time clock/counter (with Schmitt trigger input pin) must be tied to
VDD or VSS if not in use.
* Input pin with Schmitt trigger. If this pin remains at logic low, the controller
will also remain in reset condition.
* P50~P53 are bi-directional I/O pins.
* P60~P67 are bi-directional I/O pins. These can be pulled-high internally
by software control.
* P70~P77 are bi-directional I/O pins.
* P74~P75 can be pulled-high internally by software control.
* P76~P77 can have open-drain output by software control.
* P70 and P71 can also be defined as the R-option pins.
* External interrupt pin triggered by falling edge.
* Ground.
* No connection.
OSCI
27
I
OSCO
26
I/O
TCC
1
I
/RESET
28
I
P50~P53
6~9
I/O
P60~P67 10~17
I/O
P70~P77 18~25
I/O
/INT
VSS
NC
5
4
3
I
-
-
This specification is subject to change without prior notice.
06.25.2003 (V1.1)
6
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