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MB90420/5 (A) SERIES F
• Even if the SIN1, SOT1, and SCK1 pins are used for the user system, the control circuit shown in the
figure below is required in the same as P00. The /TICS signal of the flash microcontroller programmer can
be used to disconnect the user circuit during serial writing.
• Connect the AF200 while the user power is off.
• When supplying programming power from AF200, do not short-circuit the programming power and user
power.
AF220/AF210/AF110
write control pin
AF220/AF210/AF110
/TICS pin
2
MC-16LX FAMILY 16-BIT MICROCONTROLLERS HARDWARE MANUAL
10 KΩ
26-8
MB90F428/A
Write control pin
User
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