參數(shù)資料
型號: μPD78075B
廠商: NEC Corp.
元件分類: 8位微控制器
英文描述: 8 Bit Single Chip Microcontrollers
中文描述: 8位單片機微控制器
文件頁數(shù): 14/76頁
文件大小: 568K
代理商: ΜPD78075B
14
μ
PD78074B, 78075B
Pin Name
I/O
Function
After
Reset
Shared by:
RTP0 to RTP7
Output
Real-time output port by which data is output in synchronization with a trigger
Input
P120 to P127
AD0 to AD7
Input/output
Low-order address/data bus at external memory expansion
Input
P40 to P47
A0 to A7
Output
Low-order address bus at external memory expansion
Input
P80 to P87
A8 to A15
Output
High-order address bus at external memory expansion
Input
P50 to P57
RD
Output
External memory read operation strobe signal output
Input
P64
WR
External memory write operation strobe signal output
P65
WAIT
Input
Wait insertion at external memory access
Input
P66
ASTB
Output
Input
P67
ANI0 to ANI7
Input
A/D converter analog input
Input
P10 to P17
ANO0, ANO1
Output
D/A converter analog output
Input
P130, P131
AV
REF0
Input
A/D converter reference voltage input (also used for analog power supply)
AV
REF1
Input
D/A converter reference voltage input
AV
SS
A/D converter ground potential. The same potential as V
SS0
.
RESET
Input
System reset input
X1
Input
Main system clock oscillation crystal connection
X2
XT1
Input
Subsystem clock oscillation crystal connection
Input
P07
XT2
V
DD0
Positive power supply of ports
V
SS0
Ground potential of ports
V
DD1
Positive power supply (except ports and analog)
V
SS1
Ground potential (except ports and analog)
IC
Internal connection. Connect directly to V
SS0
.
3.2 Non-port Pins (2/2)
Strobe output which externally latches the address information output to
ports 4, 5 and 8 to access external memory
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