Renesas H8S/2214 Series User Manual download pdf (Page 19)

Section 3 Installing the MCU to the User System

CAUTION

1. Check the location of pin 1 before inserting.

2. Use a provided screwdriver.

3. The tightening torque must be 0.054 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.

1. Attach the spacer and cover to the IC socket.

2. Place the spacer on the IC socket. Place the two guide pins of the spacer in the corresponding

holes on the IC socket.

3. Place the MCU gently in the opening of the spacer. Be sure to correctly align pin 1 of the

MCU with the IC socket. The solder balls of the MCU will then be in the correct locations

relative to the connection pins of the IC socket.

4. Put the cover on the spacer. The four holes at the four corners of the spacer and of the cover

must be aligned. Use the four screws to fasten the cover to the IC socket. Each screw in turn

should be made a little tighter, alternating between screws on opposing corners. Use the

screwdriver provided with the package. The torque in tightening must be 0.054 N•m or less.

5. When removing the cover from the IC socket, hold the side of the cover so that no stress is

applied to the soldered connections between the IC socket and user system while the screws

on the cover are being unscrewed. Use tweezers to remove the MCU from the opening in the

spacer,

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Renesas H8S/2214 Series User Manual Page 19