STM32L152R6U6TTR 데이터 시트보기 (PDF) - STMicroelectronics

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STM32L152R6U6TTR

Ultra-low-power 32-bit MCU ARM®-based Cortex®-M3, 128KB Flash, 16KB SRAM, 4KB EEPROM, LCD, USB, ADC, DAC

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Electrical characteristics

STM32L151x6/8/B STM32L152x6/8/B

Table 54. ADC characteristics (continued)

Symbol

Parameter

Conditions

Min Typ Max Unit

tS

Sampling time(5)

tCONV

Total conversion time

(including sampling time)

Direct channels

2.4 V ≤VDDA ≤3.6 V

0.25

-

-

Multiplexed channels

2.4 V ≤VDDA ≤3.6 V

0.56

-

-

Direct channels

1.8 V ≤VDDA ≤2.4 V

0.56

-

-

Multiplexed channels

1.8 V ≤VDDA ≤2.4 V

1

-

-

-

4

-

384

fADC = 16 MHz

-

1

-

24.75

4 to 384 (sampling

phase) +12 (successive

approximation)

µs

1/fADC

µs

1/fADC

CADC

Internal sample and hold

capacitor

Direct channels

-

Multiplexed channels -

16

-

-

pF

fTRIG

fTRIG

RAIN

tlat

tlatr

tSTAB

External trigger frequency

12-bit conversions

-

Regular sequencer

6/8/10-bit conversions -

External trigger frequency

12-bit conversions

-

Injected sequencer

6/8/10-bit conversions -

Signal source impedance(5)

-

-

Injection trigger conversion

fADC = 16 MHz

219

latency

-

3.5

Regular trigger conversion

latency

fADC = 16 MHz

156

-

2.5

Power-up time

-

-

- Tconv+1 1/fADC

-

Tconv 1/fADC

- Tconv+2 1/fADC

- Tconv+1 1/fADC

-

50

κΩ

-

281

ns

-

4.5 1/fADC

-

219

ns

-

3.5 1/fADC

-

3.5

µs

1.

TexhteerVnRaEl Fv+olitnapguet

can be grounded

reference).

iif

neither

the

ADC

nor

the

DAC

are

used

(this

allows

to

shut

down

an

2. The current consumption through VREF is composed of two parameters:

- one constant (max 300 µA)

- one variable (max 400 µA), only during sampling time + 2 first conversion pulses.

So, peak consumption is 300+400 = 700 µA and average consumption is 300 + [(4 sampling + 2) /16] x 400

= 450 µA at 1Msps

3. VthReEpFa+cckaangeb.eRinetfeerrntaollySeccotnionnec4t:ePdintodVeDsDcrAipatniodnsVRfoErFf-ucrathnebr edeintateilrsn. ally connected to VSSA, depending on

4. VSSA must be tied to ground.

5. See Table 56: Maximum source impedance RAIN max for RAIN limitation.

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DocID17659 Rev 12

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