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參數(shù)資料
| 型號(hào)： | UPD780024AGB-xxx-8EU |
| 廠商： | NEC Corp. |
| 元件分類： | 8位微控制器 |
| 英文描述： | 8-BIT SINGLE-CHIP MICROCONTROLLERS |
| 中文描述： | 8位單晶片微控制器 |
| 文件頁(yè)數(shù)： | 16/96頁(yè) |
| 文件大?。?/td> | 661K |
| 代理商： | UPD780024AGB-XXX-8EU |
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16
μ
PD780021A, 780022A, 780023A, 780024A, 780021AY, 780022AY, 780023AY, 780024AY
Data Sheet U14042EJ4V0DS
3. PIN FUNCTIONS
3.1 Port Pins (1/2)
Pin Name
I/O
Function
After
Reset
Alternate
Function
P00 to P02
I/O
Port 0
4-bit I/O port
Input
INTP0 to
INTP2
P03
Input/output can be specified in 1-bit units.
An on-chip pull-up resistor can be used by setting software.
INTP3/ADTRG
P10 to P17
Input
Port 1
8-bit input only port
Input
ANI0 to ANI7
P20
I/O
Port 2
Input
SI30
P21
6-bit I/O port
SO30
P22
Input/output can be specified in 1-bit units.
SCK30
P23
An on-chip pull-up resistor can be used by setting software.
RxD0
P24
TxD0
P25
ASCK0
P30
I/O
Port 3
N-ch open-drain I/O port
Input
—
P31
7-bit I/O port
An on-chip pull-up resistor can be
P32
Input/output can be specified in
specified by the mask option.
SDA0
Note 1
P33
1-bit units.
LEDs can be driven directly.
SCL0
Note 1
P34
An on-chip pull-up resistor can be
SI31
Note 2
P35
used by setting software.
SO31
Note 2
P36
SCK31
Note 2
P40 to P47
I/O
Port 4
8-bit I/O port
Input/output can be specified in 1-bit units.
An on-chip pull-up resistor can be used by setting software.
The interrupt request flag (KRIF) is set to 1 by falling edge detection.
Input
AD0 to AD7
P50 to P57
I/O
Port 5
8-bit I/O port
LEDs can be driven directly.
Input/output can be specified in 1-bit units.
An on-chip pull-up resistor can be used by setting software.
Input
A8 to A15
P64
I/O
Port 6
Input
RD
P65
4-bit I/O port
WR
P66
Input/output can be specified in 1-bit units.
WAIT
P67
An on-chip pull-up resistor can be used by setting software.
ASTB
Notes 1.
SDA0 and SCL0 are incorporated only in the
μ
PD780024AY Subseries.
2.
SI31, SO31, and SCK31 are incorporated only in the
μ
PD780024A Subseries.
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