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GD32F310 数据表(PDF) 72 Page - GigaDevice Semiconductor (Beijing) Inc. |
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GD32F310 数据表(HTML) 72 Page - GigaDevice Semiconductor (Beijing) Inc. |
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72 / 81 page ![]() GD32F310xx Datasheet 71 5.4 QFN28 package outline dimensions Figure 5-7. QFN28 package outline Table 5-4. QFN28 package dimensions Symbol Min Typ Max A 0.70 0.75 0.80 A1 0 0.02 0.05 b 0.15 0.20 0.25 b1 — 0.14 — c 0.18 0.20 0.25 D 3.90 4.00 4.10 D2 2.70 2.80 2.90 E 3.90 4.00 4.10 E2 2.70 2.80 2.90 e — 0.40 — h 0.30 0.35 0.40 L 0.30 0.35 0.40 Nd — 2.40 — Ne — 2.40 — (Original dimensions are in millimeters) SIDE VIEW TOP VIEW D e b1 b Nd D2 h 28 2 1 1 2 BOTTOM VIEW 28 PIN 1# (Laser Mark) EXPOSED THERMAL PAD ZONE |
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