STM8L151X6 datasheet(21/147 Pages) STMICROELECTRONICS

21 / 147 page

DS6948 Rev 11

21/147

STM8L151x6/8 STM8L152x6/8

Functional overview

3.9

Analog-to-digital converter

•

12-bit analog-to-digital converter (ADC1) with 28 channels (including 4 fast channel),

temperature sensor and internal reference voltage

•

Conversion time down to 1 µs with fSYSCLK= 16 MHz

•

Programmable resolution

•

Programmable sampling time

•

Single and continuous mode of conversion

•

Scan capability: automatic conversion performed on a selected group of analog inputs

•

Analog watchdog: interrupt generation when the converted voltage is outside the

programmed threshold

•

Triggered by timer

Note:

ADC1 can be served by DMA1.

3.10

Digital-to-analog converter

•

12-bit DAC with 2 buffered outputs (two digital signals can be converted into two analog

voltage signal outputs)

•

Synchronized update capability using timers

•

DMA capability for each channel

•

External triggers for conversion

•

Noise-wave generation

•

Triangular-wave generation

•

Dual DAC channels with independent or simultaneous conversions

•

Input reference voltage VREF+ for better resolution

Note:

DAC can be served by DMA1.

3.11

Ultra-low-power comparators

The high-density and medium+ density STM8L15xx6/8 devices embed two comparators

(COMP1 and COMP2) sharing the same current bias and voltage reference. The voltage

reference can be internal or external (coming from an I/O).

•

One comparator with fixed threshold (COMP1).

•

One comparator rail to rail with fast or slow mode (COMP2). The threshold can be one

of the following:

–

DAC output

–

External I/O

–

Internal reference voltage or internal reference voltage submultiple (1/4, 1/2, 3/4)

The two comparators can be used together to offer a window function. They can wake up

from Halt mode.

STM8L151X6 Datasheet(PDF) 21 Page - STMicroelectronics

STM8L151X6 Datasheet(HTML) 21 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

Datasheet Download

Link URL