STM32F091CB datasheet(61/127 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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DocID026284 Rev 3

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STM32F091xB STM32F091xC

Electrical characteristics

Typical current consumption

The MCU is placed under the following conditions:

•

VDD = VDDA = 3.3 V

•

All I/O pins are in analog input configuration

•

The Flash memory access time is adjusted to fHCLK frequency:

–

0 wait state and Prefetch OFF from 0 to 24 MHz

–

1 wait state and Prefetch ON above 24 MHz

•

When the peripherals are enabled, fPCLK = fHCLK

•

PLL is used for frequencies greater than 8 MHz

•

AHB prescaler of 2, 4, 8 and 16 is used for the frequencies 4 MHz, 2 MHz, 1 MHz and

500 kHz respectively

Table 32. Typical and maximum current consumption from the VBAT supply

Symbol

Parameter

Conditions

Typ @ VBAT

Max(1)

Unit

TA =

25 °C

TA =

85 °C

TA =

105 °C

IDD_VBAT

RTC

domain

supply

current

LSE & RTC ON; “Xtal

mode”: lower driving

capability;

LSEDRV[1:0] = '00'

0.5

0.6

0.7

0.9

1.0

1.3

1.8

µA

LSE & RTC ON; “Xtal

mode” higher driving

capability;

LSEDRV[1:0] = '11'

0.8

0.9

1.0

1.2

1.3

1.4

1.7

2.2

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

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