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參數(shù)資料
| 型號： | MB89T637PFM |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, 10 MHz, MICROCONTROLLER, PQFP64 |
| 封裝： | PLASTIC, QFP-64 |
| 文件頁數(shù)： | 55/56頁 |
| 文件大?。?/td> | 884K |
| 代理商： | MB89T637PFM |
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MB89630 Series
8
s PIN DESCRIPTION
(Continued)
*1: DIP-64P-M01, DIP-64C-A06
*4: FPT-64P-M06
*2: MDP-64C-P02
*5: MQP-M64C-P01
*3: FPT-64P-M09
Pin no.
Pin name
Circuit
type
Function
SH-DIP*1
MDIP*2
QFP2*3
QFP1*4
MQFP*5
30
22
23
X0
A
Main clock crystal oscillator pins
31
23
24
X1
28
20
21
MOD0
D
Operating mode selection pins
Connect directly to VCC or VSS
29
21
22
MOD1
27
19
20
RST
C
Reset I/O pin
This pin is an N-ch open-drain output type with a
pull-up resistor, and a hysteresis input type. “L” is
output from this pin by an internal reset source.
The internal circuit is initialized by the input of “L”.
56 to 49
48 to 41
49 to 42
P00/AD0 to
P07/AD7
F
General-purpose I/O ports
When an external bus is used, these ports
function as the multiplex pins of the lower address
output and the data I/O.
48 to 41
40 to 33
41 to 34
P10/A08 to
P17/A157
F
General-purpose I/O ports
When an external bus is used, these ports
function as an upper address output.
40
32
33
P20/BUFC
H
General-purpose output-only port
When an external bus is used, this port can also
be used as a buffer control output by setting the
BCTR.
39
31
32
P21/HAK
H
General-purpose output-only port
When an external bus is used, this port can also
be used as a hold acknowledge by setting the
BCTR.
38
30
31
P22/HRQ
F
General-purpose output-only port
When an external bus is used, this port can also
be used as a hold request input by setting the
BCTR.
37
29
30
P23/RDY
F
General-purpose output-only port
When an external bus is used, this port functions
as a ready input.
36
28
29
P24/CLK
H
General-purpose output-only port
When an external bus is used, this port functions
as a clock output.
35
27
28
P25/WR
H
General-purpose output-only port
When an external bus is used, this port functions
as a write signal output.
34
26
27
P26/RD
H
General-purpose output-only port
When an external bus is used, this port functions
as a read signal output.
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