參數(shù)資料
型號: μPD784224
廠商: NEC Corp.
英文描述: 16 Bit Single Chip Microcontrollers(16 位單片微控制器)
中文描述: 16位單片機微控制器(16位單片微控制器)
文件頁數(shù): 14/68頁
文件大小: 384K
代理商: ΜPD784224
14
m
PD784224, 784225
5.2 Pins Other Than Port Pins (2/2)
Pin Name
I/O
Alternate Function
Function
RD
Output
P64
Strobe signal output for read operation of external memory
WR
P65
Strobe signal output for write operation of external memory
WAIT
Input
P66
To insert wait state(s) when external memory is accessed
ASTB
Output
P67
Strobe output to externally latch address information output to ports
4 through 6 to access external memory
EXA
Output
P37
External access status output
RESET
Input
System reset input
X1
Input
To connect main system clock oscillation crystal
X2
XT1
Input
To connect subsystem clock oscillation crystal
XT2
ANI0-ANI7
Input
P10-P17
Analog voltage input for A/D converter
ANO0, ANO1
Output
P130, P131
Analog voltage output for D/A converter
AV
REF1
To apply reference voltage for D/A converter
AV
DD
Positive power supply for A/D converter. Connected to V
DD0
.
AV
SS
GND for A/D converter and D/A converter. Connected to V
SS0
.
V
DD0
Positive power supply for port block
V
SS0
GND potential for port block
V
DD1
Positive power supply (except port block)
V
SS1
GND potential (except port block)
TEST
Directly connect this pin to V
SS0
(this pin is for IC test).
相關(guān)PDF資料
PDF描述
μPD784225 16 Bit Single Chip Microcontrollers(16 位單片微控制器)
μPD784225Y 16 Bit Single Chip Microcontrollers(16 位單片微控制器)
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μPD78F9177Y 8 Bit Single Chip Microcontrollers(8 位單片微控制器)
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