STM32L151VBT6DTR datasheet(66/121 Pages) STMICROELECTRONICS

66 / 121 page

Electrical characteristics

STM32L151x6/8/B, STM32L152x6/8/B

66/121

Doc ID 17659 Rev 8

Low-speed external user clock generated from an external source

The characteristics given in the following table result from tests performed using a low-

speed external clock source, and under ambient temperature and supply voltage conditions

summarized in Table 14.

Figure 14.

Low-speed external clock source AC timing diagram

Table 27.

Low-speed external user clock characteristics(1)

Guaranteed by design, not tested in production

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

fLSE_ext

User external clock source

frequency

32.768

1000

kHz

VLSEH

OSC32_IN input pin high level

voltage

0.7VDD

VDD

VLSEL

OSC32_IN input pin low level

voltage

VSS

0.3VDD

tw(LSE)

OSC32_IN high or low time

465

tr(LSE)

tf(LSE)

OSC32_IN rise or fall time

CIN(LSE)

OSC32_IN input capacitance

0.6

DuCy(LSE) Duty cycle

OSC32_IN Input leakage current

VSS ≤ VIN ≤ VDD

±1

µA

ai18233

OSC32_IN

EXTER NAL

STM32Lxx

CLOCK SOURC E

VLSEH

tf(LSE)

tW(LSE)

90%

10%

TLSE

tr(LSE)

tW(LSE)

fLSE_ext

VLSEL

STM32L151VBT6DTR Fiches technique(PDF) 66 Page - STMicroelectronics

STM32L151VBT6DTR Fiches technique(HTML) 66 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Fiches technique Télécharger

Lien URL