
(4) In dual-power supply and memory expansion mode
*: Open-collector buffer
P65
P66
P67
CNVss
RESET
Vcc1 Vcc1 Vcc1 Vcc1
User
logic
Vcc1
*
User System
Pulled-up at
4.7Ω or more
Pulled-up at 4.7Ω or more
Pulled-down at
4.7Ω or more
Pulled-up at
4.7Ω or more
14-pin 2.54mm
pitch connector
P64
P55 [*1]
P50
M16C/62P
Vcc
SCLK
RxD
TxD
BUSY
EPM
CE
CNVss
RESET
Vss
Pulled-up at
4.7kΩ to 22kΩ
Vcc2
Vcc2
Pulled-up at
4.7Ω or more
Figure 4.4 Example of E8 Connection (Dual-power Supply and Memory Expansion Mode)
[*1]: The HOLD signal cannot be used. Pulled-up P55 on the user system.
10
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