參數(shù)資料
型號(hào): EM78Q156A
廠商: ELAN Microelctronics Corp .
英文描述: 8-Bit Micro-Controller for General-Purpose Product(工作電壓2.5V-6.5V的8位微控制器)
中文描述: 8位微控制器的通用產(chǎn)品(工作電壓為2.5V至6.5V的8位微控制器)
文件頁數(shù): 2/24頁
文件大小: 274K
代理商: EM78Q156A
* This specification are subject to be changed without notice.
EM78Q156A/B
8-BIT MICRO-CONTROLLER FOR GENERAL PURPOSE PRODUCT
2
6.30.1998
Preliminary
PIN DESCRIPTIONS
Symbol
I/O
Function
OSCI
I
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: clock output with a period of one instruction cycle is put on this pin.
Real time clock/counter, Schmitt trigger input pin. Must be tied to V
DD
or
V
if not in use.
Schmitt trigger input pin. If this pin remains logic low, the controller is reset.
P50~P53 are bi-directional I/O ports. P50 and P51 are also the R-option
pins. P50~P52 can be pulled-down by software control.
OSCO
I/O
TCC
I
RESET
P50~P53
I
I/O
FUNCTIONAL BLOCK DIAGRAM
PIN ASSIGNMENTS
OTP
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
10
EM78Q156AP/BP
P52
P53
TCC
RESET
V
SS
P60,INT
P61
P62
P63
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
10
P51
P50
OSCI
OSCO
V
DD
P67
P66
P65
P64
EM78Q156AM/BM
SOIC
DIP
P52
P53
TCC
RESET
V
SS
V
SS
P60,INT
P61
P62
P63
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
P51
P50
OSCI
OSCO
V
DD
V
DD
P67
P66
P65
P64
EM78Q156AS/BS
SSOP
P52
P53
TCC
RESET
V
SS
P60,INT
P61
P62
P63
P51
P50
OSCI
OSCO
V
DD
P67
P66
P65
P64
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