STM32F091CB datasheet(74/127 Pages) STMICROELECTRONICS

部件名	STM32F091CB

功能描述	ARM-based 32-bit MCU, up to 256 KB Flash, CAN, 12 timers, ADC, DAC & comm. interfaces, 2.0 - 3.6V

PDF	127 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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74 / 127 page

Electrical characteristics

STM32F091xB STM32F091xC

74/127

DocID026284 Rev 3

High-speed internal 48 MHz (HSI48) RC oscillator

Figure 21. HSI48 oscillator accuracy characterization results

Table 43. HSI48 oscillator characteristics(1)

1. VDDA = 3.3 V, TA = –40 to 105 °C unless otherwise specified.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

fHSI48

Frequency

MHz

TRIM

HSI48 user-trimming step

0.09(2)

0.14

0.2(2)

DuCy(HSI48) Duty cycle

45(2)

2. Guaranteed by design, not tested in production.

-55(2)

ACCHSI48

Accuracy of the HSI48

oscillator (factory calibrated)

TA = –40 to 105 °C -4.9(3)

3. Data based on characterization results, not tested in production.

-4.7(3)

TA = –10 to 85 °C

-4.1(3)

-3.7(3)

TA = 0 to 70 °C

-3.8(3)

-3.4(3)

TA = 25 °C

-2.8

2.9

tsu(HSI48)

HSI48 oscillator startup time

6(2)

µs

IDDA(HSI48)

HSI48 oscillator power

consumption

312

350(2)

µA

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