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■ MCU footprint design notes

Figure 2 shows the recommended dimensions of the footprint for mounting the NQPACK on the

printed circuit board of the user system.

The printed circuit board of the user system must be designed with due consideration given to this

footprint as well as to the mass production MCU.

For more information, contact Tokyo Eletech Corporation.

*1 : The positions of the holes (φ1.0) for the guide pins when the NQPACK is mounted.

*2 : The position of the screw hole (φ3.2) used to affix the IC socket when the

Figure 2 Recommended dimensions of the footprint for mounting the NQPACK

■ Notes on the sub clock

When using this product, it is not possible to supply the sub clock from the user system to the eval-

uation MCU. If the evaluation MCU operates using the sub clock, use the sub clock on the adapter

board.

See the operation manual for the adapter board for details.

0.65mm × 19 = 12.35mm

0.65mm

φ3.2mm*

2.4mm

These holes are not needed if the guide pins are not used.

NQPACK100RB179-SL-A (Tokyo Eletech Corporation, sold separately) is mount-

ed. This hole is not needed if the NQPACK100RB179-SL-A is not used.

0.35mm

3-φ1.0mm*

6.0mm

13.8mm

2.4mm

No. 1 pin