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參數(shù)資料
| 型號： | UPD784021 |
| 廠商： | NEC Corp. |
| 英文描述： | 16/8-BIT SINGLE-CHIP MICROCOMPUTER |
| 中文描述： | 16/8-BIT單片機(jī) |
| 文件頁數(shù)： | 13/90頁 |
| 文件大?。?/td> | 614K |
| 代理商： | UPD784021 |
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13
m
PD784020, 784021
6.2 NON-PORT PINS (1/2)
Pin
I/O
Dual-function
Function
TO0-TO3
Output
P34-P37
Timer output
CI
Input
P23/INTP2
Input of a count clock for timer/counter 2
R
X
D
Input
P30/SI1
Serial data input (UART0)
R
X
D2
P13/SI2
Serial data input (UART2)
T
X
D
Output
P31/SO1
Serial data output (UART0)
T
X
D2
P14/SO2
Serial data output (UART2)
ASCK
Input
P25/INTP4/SCK1
Baud rate clock input (UART0)
ASCK2
P12/SCK2
Baud rate clock input (UART2)
SB0
I/O
P33/SO0
Serial data I/O (SBI)
SI0
Input
P27
Serial data input (3-wire serial I/O0)
SI1
P30/R
X
D
Serial data input (3-wire serial I/O1)
SI2
P13/R
X
D2
Serial data input (3-wire serial I/O2)
SO0
Output
P33/SB0
Serial data output (3-wire serial I/O0)
SO1
P31/T
X
D
Serial data output (3-wire serial I/O1)
SO2
P14/T
X
D2
Serial data output (3-wire serial I/O2)
SCK0
I/O
P32
Serial clock I/O (3-wire serial I/O0, SBI)
SCK1
P25/INTP4/ASCK
Serial clock I/O (3-wire serial I/O1)
SCK2
P12/ASCK2
Serial clock I/O (3-wire serial I/O2)
NMI
Input
P20
External interrupt request
—
INTP0
P21
Y
Input of a count clock for timer/counter 1
Y
Capture/trigger signal for CR11 or CR12
INTP1
P22
Y
Input of a count clock for timer/counter 2
Y
Capture/trigger signal for CR22
INTP2
P23/CI
Y
Input of a count clock for timer/counter 2
Y
Capture/trigger signal for CR21
INTP3
P24
Y
Input of a count clock for timer/counter 0
Y
Capture/trigger signal for CR02
INTP4
P25/ASCK/SCK1
—
INTP5
P26
Input of a conversion start trigger for A/D converter
AD0-AD7
I/O
—
Time multiplexing address/data bus (for connecting external memory)
A8-A15
Output
—
High-order address bus (for connecting external memory)
A16-A19
Output
P60-P63
High-order address bus during address expansion (for connecting external memory)
RD
Output
—
Strobe signal output for reading the contents of external memory
WR
Output
—
Strobe signal output for writing on external memory
WAIT
Input
P66/HLDRQ
Wait signal insertion
REFRQ
Output
P67/HLDAK
Refresh pulse output to external pseudo static memory
HLDRQ
Input
P66/WAIT
Input of bus hold request
HLDAK
Output
P67/REFRQ
Output of bus hold response
ASTB
Output
—
Latch timing output of time multiplexing address (A0-A7) (for
connecting external memory)
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相關(guān)代理商/技術(shù)參數(shù) |
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| UPD784031GC-8BT-A | 制造商:Renesas Electronics Corporation 功能描述:MCU 8BIT/16BIT 78K4 CISC ROMLESS 3.3V/5V 80PQFP - Trays 制造商:Renesas Electronics 功能描述:16 制造商:Renesas Electronics 功能描述:16 Cut Tape |
| UPD784031GK-9EU-A | 制造商:Renesas Electronics Corporation 功能描述:16BIT K4 ROMLESS - Bulk |
| UPD784031YGC-8BT | 制造商:Renesas Electronics Corporation 功能描述: |
| UPD784031YGC-8BT-A | 制造商:Renesas Electronics Corporation 功能描述: |
| UPD784031YGK-9EU | 制造商:Renesas Electronics Corporation 功能描述: |
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