Fujitsu LQFP-64P, Operation Manual

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6
5. Mounting Mass Production MCUs
Use the supplied HQPACK to mount a mass production MCU on the user system.
■
Mounting
1. To mount a mass production MCU on the user system, align the index mark (
▲
) on the NQPACK
mounted on the user system with the index mark (
●
) on the mass production MCU.
2. Confirm that the mass production MCU is correctly mounted on the NQPACK, and then align the
index mark (the only corner with an angle cut-out) of the HQPACK with the index mark of the
NQPACK, and insert it (See “Figure 5”).
The HQPACK pins are thin and easy to bend. Check that the HQPACK pins are not bent before
inserting it into the NQPACK.
3. Insert each of the screws for securing the HQPACK into each of the four screw holes on the HQ-
PACK and tighten the diagonally opposite screws in turn.
To tighten the screws, use the special screwdriver supplied with the NQPACK to finally tighten
the four screws in sequence. Tightening the screws too tight might result in a defective contact.
Figure 5 Mounting a mass production MCU
■
Disconnection
To remove the HQPACK, remove all of the four screws, and pull the HQPACK vertically out from
the NQPACK.
Screws for securing
the HQPACK
HQPACK
Mass production MCU
NQPACK
User system