參數(shù)資料
型號(hào)： UPD780018YGF-xxx-3BA
廠商： NEC Corp.
元件分類： 8位微控制器
英文描述： 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash
中文描述： 8位微控制器與2/4/8K字節(jié)在系統(tǒng)可編程閃存
文件頁(yè)數(shù)： 12/42頁(yè)
文件大?。?/td> 189K
代理商： UPD780018YGF-XXX-3BA
12
μ
PD780016Y, 780018Y
3.2 Non-port Pins (2/2)
Low-order address bus at external memory expansion.
High-order address bus at external memory expansion.
External memory read operation strobe signal output.
External memory write operation strobe signal output.
Wait insertion at external memory access.
Strobe output which externally latches the address information output to
ports 4, 5 and 8 to access external memory.
A/D converter analog input.
A/D converter reference voltage input (shared with analog power supply).
A/D converter ground potential. Same potential as V
SS0
.
System reset input.
Main system clock oscillation crystal connection.
Subsystem clock oscillation crystal connection.
Port block positive power supply.
Port block ground potential.
Positive power supply (except for port and analog blocks)
Ground potential (except for port and analog blocks)
Internal connection. Connect directly to V
SS0
.
Function
Pin Name
I/O
A0 to A7
A8 to A15
RD
WR
WAIT
ASTB
ANI0 to ANI7
AV
REF
AV
SS
RESET
X1
X2
XT1
XT2
V
DD0
V
SS0
V
DD1
V
SS1
IC
Alternate
Function Pin
Output
P80 to P87
P50 to P57
P64
P65
P66
P67
P10 to P17
—
—
—
—
—
—
—
—
—
—
—
—
Output
Output
Input
Output
Input
Input
—
Input
Input
—
Input
—
—
—
—
—
—
After
Reset
Input
Input
Input
Input
Input
Input
—
—
—
—
—
Input
—
—
—
—
—
—
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