STM32WB55VC 查看數據表（PDF） - STMicroelectronics

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STM32WB55VC

Multiprotocol wireless 32-bit MCU Arm®-based Cortex®-M4 with FPU, Bluetooth® 5 and 802.15.4 radio solution

STMicroelectronics 

STM32WB55xx STM32WB35xx

Electrical characteristics

Table 60. MSI oscillator characteristics(1) (continued)

Symbol

Parameter

Conditions

Min

VDD = 

1.62 to 3.6 V

-1.2

Range 0 to 3

VDD = 

2.4 to 3.6 V

-0.5

∆VDD(MSI)(2)

MSI oscillator

frequency drift

over VDD

(reference is 3 V)

MSI mode

Range 4 to 7

VDD = 

1.62 to 3.6 V

VDD = 

2.4 to 3.6 V

-2.5

-0.8

VDD = 

1.62 to 3.6 V

-5

Range 8 to 11

VDD = 

2.4 to 3.6 V

-1.6

∆(FMSSAMI)(P2L)(IN6)G

Frequency

variation in

MSI mode

sampling mode(3)

TA= -40 to 85 °C

TA= -40 to 125 °C

-

-

P_USB

Period jitter for

Jitter(MSI)(6) USB clock(4)

PLL mode

Range 11

For next

transition

For paired

transition

-

-

-

-

MT_USB

Jitter(MSI)(6)

Medium term jitter PLL mode

for USB clock(5) Range 11

For next

transition

For paired

transition

-

-

-

-

CC jitter(MSI)(6)

P jitter(MSI)(6)

RMS cycle-to-

cycle jitter

RMS period jitter

PLL mode Range 11

PLL mode Range 11

-

-

-

-

Range 0

-

-

Range 1

-

-

tSU(MSI)(6)

MSI oscillator

start-up time

Range 2

Range 3

-

-

-

-

Range 4 to 7

-

-

Range 8 to 11

-

-

10 % of final

frequency

-

-

tSTAB(MSI)(6)

MSI oscillator

PLL mode 5 % of final

stabilization time Range 11 frequency

-

-

1 % of final

frequency

-

-

Typ Max Unit

-

0.5

-

-

0.7

-

%

-

1

-

1

2

2

4

- 3.458

- 3.916

ns

-

2

-

1

60

-

ps

50

-

10

20

5

10

4

8

μs

3

7

3

6

2.5

6

0.25 0.5

0.5 1.25 ms

-

2.5

DS11929 Rev 10

125/193

169

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