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Device electronic signature RM0453

1444/1454 RM0453 Rev 2

39.1.3 Package data register (PKG)

Base address: 0x1FFF 7500

Address offset: 0x00

Reset value: 0xFFXX

Note: X is either factory- or user-programmed.

39.1.4 IEEE 64-bit unique device ID register (UID64)

A 64-bit unique device identification (UID64) is stored in the Flash memory and can be

accessed by the CPUs.

Base address: 0x1FFF 7580

Address offset: 0x00

Reset value: 0xXXXX XXXX

Note: X is factory-programmed.

1514131211109876543210

Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. PKG[4:0]

rrrrr

Bits 15:5 Reserved, must be kept at reset value.

Bits 4:0 PKG[4:0]: package type

00000: UFBGA73

00010: WLCSP59

01010: UFQFPN48

Others: reserved

31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16

DEVNUM[31:16]

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1514131211109876543210

DEVNUM[15:0]

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Bits 31:0 DEVNUM[31:0]: device number

The 32-bit unique device number is a sequential number, different for each individual device.

ST STM32WL55JC User Manual

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