參數(shù)資料
型號: μPD784218Y
廠商: NEC Corp.
英文描述: 8 /16 Bit Single Chip Microcontrollers(8/16位單片微控制器)
中文描述: 8 / 16位單片機微控制器(8 / 16位單片微控制器)
文件頁數(shù): 17/50頁
文件大小: 207K
代理商: ΜPD784218Y
17
μ
PD784217Y,784218Y
6.2 Non-port Pins (2/2)
Pin Name
I/O
Alternate Function
Function
PCL
Output
P23
Clock output (for trimming main system clock and subsystem clock)
BUZ
Output
P24
Buzzer output
RTP0 to RTP7
Output
P120 to P127
Real-time output port that outputs data in synchronization with
trigger
AD0 to AD7
I/O
P40 to P47
Low-order address/data bus when external memory is connected
A0 to A7
Output
P80 to P87
Low-order address bus when external memory is connected
A8 to A15
P50 to P57
Middle-order address bus when external memory is connected
A16 to A19
P60 to P63
High-order address bus when external memory is connected
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 and port 8 to access external memory
EXA
Output
P37
Status signal output when external memory is accessed
RESET
Input
System reset input
X1
Input
Crystal connection for main system clock oscillation
X2
XT1
Input
Crystal connection for subsystem clock oscillation
XT2
ANI0 to ANI7
Input
P10 to P17
Analog voltage input for A/D converter
ANO0, ANO1
Output
P130, P131
Analog voltage output for D/A converter
AV
REF0
To apply reference voltage for A/D converter
AV
REF1
To apply reference voltage for D/A converter
AV
DD
Positive power supply for A/D converter. Connected to V
DD
.
AV
SS
GND for A/D converter and D/A converter. Connected to V
SS
.
V
DD
Positive power supply
V
SS
GND
TEST
Directly connect this pin to V
SS
(this pin is for IC test).
相關(guān)PDF資料
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μPD784218 8 /16 Bit Single Chip Microcontrollers(8/16位單片微控制器)
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