參數(shù)資料
型號： μPD780205
廠商： NEC Corp.
英文描述： 8 Bit Single Chip Microcontrollers(8位單片微控制器)
中文描述： 8位單片機(jī)微控制器（8位單片微控制器）
文件頁數(shù)： 10/78頁
文件大?。?/td> 406K
代理商： ΜPD780205
m
PD780204, 780205, 780206, 780208
10
Sharde by:
INTP0/TI0
INTP1
INTP2
INTP3
XT1
ANI0-ANI7
SI1
SO1
SCK1
STB
BUSY
SI0/SB0
SO0/SB1
SCK0
TO0
TO1
TO2
TI1
TI2
PCL
BUZ
—
I/O
I/O
Port 2
8-bit I/O port
Can be specified for input or output in 1-bit units.
When used as an input port pin, an on-chip pull-up resistor can be
used through software.
Port 0
5-bit I/O port
On Reset
Input
Input
Input
Input
Input
Input
Input only
Can be specified for input or output in 1-
bit units. When used as an input port pin,
an on-chip pull-up resistor can be used
through software.
Input only
Port 1
8-bit I/O port
Can be specified for input or output in 1-bit units.
When used as an input port pin, an on-chip pull-up resistor can be
used through software.
Note 2
3. PIN FUNCTIONS
3.1 PORT PINS (1/2)
I/O
Input
I/O
Input
I/O
Function
Notes
1.
When the P04/XT1 pins is used as an input port pin, bit 6 (FRC) of the porcessor clock control register (PCC)
must be set to 1. (At this time, do not use the feedback resistor of the subsystem clock oscillator circuit.)
2.
When the P10/ANI0 through P17/ANI7 pins are used as the analog input lines of the A/D converter, be sure
to place the port 1 in the input mode. In this case, the on-chip pull-up resistors are automaticaly unused.
Port 3
8-bit I/O port
Can be specified for input or output in 1-bit units.
Can directly drive LEDs.
When used as an input port pin, an on-chip pull-up resistor can be
used through software.
A pull-down resistor can be connected in 1-bit units by mask
option.
Pin Name
P00
P01
P02
P03
P04
Note 1
P10-P17
P20
P21
P22
P23
P24
P25
P26
P27
P30
P31
P32
P33
P34
P35
P36
P37
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