Datasheet

ManualsBrandsST ManualsEmbedded Processors & ControllersMicrocontroller 32bit 128KB LQFP

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DS9716 Rev 11 115/139

STM32F401xB STM32F401xC Package information

132

Figure 47. WLCSP49 - 49-ball, 2.999 mm, 0.4 mm pitch wafer level chip scale

recommended footprint

Table 79. WLCSP49 - 49-ball, 2.965 x 2.965 mm, 0.4 mm pitch wafer level chip scale

package mechanical data

Symbol

millimeters inches

(1)

1. Values in inches are converted from mm and rounded to 4 decimal digits.

Min Typ Max Min Typ Max

A 0.525 0.555 0.585 0.0207 0.0219 0.0230

A1 - 0.175 - - 0.0069 -

A2 - 0.380 - - 0.0150 -

(2)

2. Back side coating.

- 0.025 - - 0.0010 -

(3)

3. Dimension is measured at the maximum bump diameter parallel to primary datum Z.

0.220 0.250 0.280 0.0087 0.0098 0.0110

D 2.930 2.965 3.000 0.1154 0.1167 0.1181

E 2.930 2.965 3.000 0.1154 0.1167 0.1181

e - 0.400 - - 0.0157 -

e1 - 2.400 - - 0.0945 -

e2 - 2.400 - - 0.0945 -

F - 0.2825 - - 0.0111 -

G - 0.2825 - - 0.0111 -

aaa - 0.100 - - 0.0039 -

bbb - 0.100 - - 0.0039 -

ccc - 0.100 - - 0.0039 -

ddd - 0.050 - - 0.0020 -

eee - 0.050 - - 0.0020 -

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