Renesas H8/350 Technical Information download pdf (Page 18)

Section 3 Installing the MCU to the User System

CAUTION

1. Check the location of pin 1 before inserting.

2. Use a Phillips-type screwdriver whose head matches

the screw head.

3. The tightening torque must be 0.0784 N•m or less.

If the applied torque cannot be accurately measured,

stop tightening when the force required to turn the screw

becomes significantly greater than that needed when first

tightening. If a screw is tightened too much, the screw head

may break or an IC socket contact error may be caused by

a crack in the IC socket solder.

4. If the MCU does not operate correctly, cracks might have

occurred in the solder. Check conduction with a tester

and re-solder the IC socket if necessary.

Check the location of pin 1 before inserting the MCU into the IC socket on the user system, as

shown in figure 8. After inserting the MCU, fasten the socket cover with the provided four

screws (M2.0

x 8 mm). Take special care, such as manually securing the IC socket soldered area,

to prevent the IC socket from being damaged by overtightening the screws or twisting the

components.

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Renesas H8/350 Technical Information Page 18