AN3422 datasheet(34/52 Pages) STMICROELECTRONICS

34 / 52 page

Peripheral migration

AN3422

34/52

Doc ID 018976 Rev 2

Number of

channels

up to 21 channels

up to 42 Channels

Resolution

12-bit

Conversion Modes

Single / continuous / Scan / Discontinuous /

Dual Mode

Single / continuous / Scan / Discontinuous

DMA

Yes

External Trigger

Yes

External event for

regular group

For ADC1 and ADC2:

TIM1 CC1

TIM1 CC2

TIM1 CC3

TIM2 CC2

TIM3 TRGO

TIM4 CC4

EXTI line 11 /

TIM8_TRGO

For ADC3:

TIM3 CC1

TIM2 CC3

TIM1 CC3

TIM8 CC1

TIM8 TRGO

TIM5 CC1

TIM5 CC3

External event for

injected group

For ADC1 and ADC2:

TIM1 TRGO

TIM1 CC4

TIM2 TRGO

TIM2 CC1

TIM3 CC4

TIM4 TRGO

EXTI line15 /

TIM8_CC4

For ADC3:

TIM1 TRGO

TIM1 CC4

TIM4 CC3

TIM8 CC2

TIM8 CC4

TIM5 TRGO

TIM5 CC4

External event for

regular group

TIM9_CC2

TIM9_TRGO

TIM2_CC3

TIM2_CC2

TIM3_TRGO

TIM4_CC4

TIM2_TRGO

TIM3_CC1

TIM3_CC3

TIM4_TRGO

TIM6_TRGO

EXTI line11

External event for

injected group

TIM9_CC1

TIM9_TRGO

TIM2_TRGO

TIM2_CC1

TIM3_CC4

TIM4_TRGO

TIM4_CC1

TIM4_CC2

TIM4_CC3

TIM10_CC1

TIM7_TRGO

EXTI line15

Supply requirement

2.4 V to 3.6 V

1.8 V to 3.6 V

Input range

VREF- <= VIN <= VREF+

Table 13.

ADC differences between STM32F1 series and STM32L1 series (continued)

ADC

STM32F1 series

STM32L1 series

Color key:

= Same feature, but specification change or enhancement

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