STM32L433CB datasheet(211/227 Pages) STMICROELECTRONICS

Part #	STM32L433CB

Description	Ultra-low-power Arm® Cortex®-M4 32-bit MCUFPU, 100DMIPS, up to 256KB flash, 64KB SRAM, USB FS, LCD, ext. SMPS

PDF	227 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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211 / 227 page

DS11449 Rev 7

211/227

STM32L433xx

Package information

219

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 56. WLCSP49 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.

Table 112. WLCSP49 - Recommended PCB design rules (0.4 mm pitch)

Dimension

Recommended values

Pitch

0.4

Dpad

0.225 mm

Dsm

0.290 mm typ. (depends on the soldermask

registration tolerance)

Stencil opening

0.250 mm

Stencil thickness

0.100 mm

MSv40139V1

Date code

Pin 1 identifier

L433CCY

Product identification(1)

Revision code

STM32L433CB Datasheet(PDF) 211 Page - STMicroelectronics