Datasheet

Package information STM32L433xx
204/224 DocID028794 Rev 4
Device marking
The following figure gives an example of topside marking orientation versus ball A1 identifier
location.
Other optional marking or inset/upset marks, which identify the parts throughout supply
chain operations, are not indicated below.
Figure 53. UFBGA64 marking (package top view)
1. Parts marked as ES or E or accompanied by an Engineering Sample notification letter are not yet qualified
and therefore not approved for use in production. ST is not responsible for any consequences resulting
from such use. In no event will ST be liable for the customer using any of these engineering samples in
production. ST’s Quality department must be contacted prior to any decision to use these engineering
samples to run a qualification activity.
Stencil thickness Between 0.100 mm and 0.125 mm
Pad trace width 0.100 mm
Table 107. UFBGA64 recommended PCB design rules (0.5 mm pitch BGA) (continued)
Dimension Recommended values
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