STM32F302VB Просмотр технического описания (PDF) - STMicroelectronics

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STM32F302VB

ARM®-based Cortex®-M4 32b MCU+FPU, up to 256KB Flash+ 40KB SRAM, 2 ADCs, 1 DAC ch., 4 comp, 2 PGA, timers, 2.0-3.6 V

STMicroelectronics 

STM32F302xB STM32F302xC

Electrical characteristics

6.3.23

VBAT monitoring characteristics

Symbol

Table 80. VBAT monitoring characteristics

Parameter

Min Typ Max Unit

R

Q

Er(1)

Resistor bridge for VBAT

Ratio on VBAT measurement

Error on Q

-

50

-

KΩ

-

2

-

-1

-

+1

%

TS_vbat(1)(2)

ADC sampling time when reading the VBAT

1mV accuracy

2.2

-

-

µs

1. Guaranteed by design.

2. Shortest sampling time can be determined in the application by multiple iterations.

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