參數(shù)資料
型號: μPD70P083
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位單片機微控制器(8位單片微控制器)
文件頁數(shù): 16/56頁
文件大?。?/td> 390K
代理商: ΜPD70P083
16
m
PD78P083
Pin Name
Input/Output
Input/Output
Recommended Connection for Unused Pins
Circuit Type
P00
2
Input
Connect to V
SS
.
P01/INTP1
8-A
Input/Output
Independently connect to V
SS
via a resistor.
P02/INTP2
P03/INTP3
P10/ANI0-P17/ANI7
11
Input/Output
Independently connect to V
DD
or V
SS
via
P30-P32
5-A
a resistor.
P33, P34
8-A
P35/PCL
5-A
P36/BUZ
P37
P50-P57
5-A
P70/SI2/RxD
8-A
P71/SO2/TxD
5-A
P72/SCK2/ASCK
8-A
P100/TI5/TO5
8-A
P101/TI6/TO6
RESET
2
Input
AV
REF
Connect to V
SS
.
AV
DD
Connect to V
DD
.
AV
SS
Connect to V
SS
.
V
PP
Connect directly to V
SS
.
NC
Connect to V
SS
(can leave open)
2.2
Pins in PROM Programming Mode
Pin Name
Input/Output
Function
RESET
Input
PROM programming mode setting
When +5 V or +12.5 V is applied to the V
PP
pin and a low-level signal is applied to the RESET pin,
this chip is set in the PROM programming mode.
V
PP
Input
PROM programming mode setting and high-voltage applied during program write/verification.
A0-A14
Input
Address bus
D0-D7
Input/output
Data bus
CE
Input
PROM enable input/program pulse input
OE
Input
Read strobe input to PROM
PGM
Input
Program/program inhibit input in PROM programming mode.
V
DD
Positive power supply
V
SS
Ground potential
2.3
Pin Input/Output Circuits and Recommended Connection of Unused Pins
Types of input/output circuits of the pins and recommeded connection of unused pins are shown in Table 2-1.
For the configuration of each type of input/output circuit, see Figure 2-1.
Table 2-1. Type of Input/Output Circuit of Each Pin
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