參數(shù)資料
型號(hào): μPD78P0208
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): 15/72頁
文件大?。?/td> 424K
代理商: ΜPD78P0208
15
m
PD78P0208
(2) Non-port pins (2/2)
Pin name
ANI0-ANI7
AV
REF
AV
DD
AV
SS
RESET
X1
X2
XT1
XT2
V
DD
V
PP
V
SS
Combination pin
P10-P17
P04
I/O
Input
Input
Input
Input
Input
Function
Analog input for A/D converter
Reference voltage input for A/D converter
Analog power supply for A/D converter. Connect to V
DD
.
Ground for A/D converter. Connect to V
SS
.
System reset input
Crystal connection for main system clock oscillation
Crystal connection for subsystem clock oscillation
Positive power supply
Connect to V
SS
.
Ground level
Reset
Input
Input
2.2 PINS FOR PROM PROGRAMMING MODE
Pin name
RESET
V
PP
A0-A16
D0-D7
CE
OE
PGM
V
DD
V
SS
I/O
Input
Input
Input
I/O
Input
Input
Input
Function
PROM programming mode selection.
PROM programming mode is selected when +5 V or +12.5 V is added to the V
PP
pin or low-
level input is added to the RESET pin.
PROM programming mode selection and high voltage input during program write or verification
Address bus
Data bus
PROM enable input/program pulse input
Read strobe input to PROM
Program/program inhibit input during PROM programming mode
Positive power supply
Ground level
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