Fujitsu LQFP-100P Посібник з експлуатації - Сторінка 9
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5. Mounting Mass Production MCUs
To mount a mass production MCU on the user system, use the supplied HQPACK (See Figure 5).
Mounting
1. To mount a mass production MCU on the user system, match the index mark ( ) on the NQ-
PACK 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. Next, insert the
HQPACK into a NQPACK.
The pin of HQPACK is thin and easy to bent. Insert NQPACK after confirm that the pin of HQ-
PACK is not bent.
3. Insert each screw for securing HQPACK in each of the four drilled holes on the HQPACK,(See
Figure 5).
To tighten the screws, use the special screwdriver supplied with the NQPACK to finally tighten-
the four screws in sequence. Please tighten a screw to a diagonal by equal power using a special-
screwdriver. Tightening the screws too tight might result in a defective contact.
Disconnection
To remove the HQPACK, remove all four screws, and pull out the HQPACK vertically.
6
User system
Figure 5 Mounting a mass production MCU
Screws for securing HQPACK
HQPACK
Mass production MCU
NQPACK