PIC16F570 datasheet(59/134 Pages) MICROCHIP

59 / 134 page

 2012-2014 Microchip Technology Inc.

DS40001652C-page 59

PIC16F527

9.1.7

SLEEP

This ADC does not have a dedicated ADC clock, and

therefore, no conversion in Sleep is possible. If a

conversion is underway and a Sleep command is

executed, the GO/DONE and ADON bits will be

cleared. This will stop any conversion in process and

power-down the ADC module to conserve power. Due

to the nature of the conversion process, the ADRES

may contain a partial conversion. At least one bit must

have been converted prior to Sleep to have partial con-

version data in ADRES. The ADCS and CHS bits are

reset to their default condition; ANS<7:0> = 1s and

CHS<3:0> = 1s.

• For accurate conversions, TAD must meet the

following:

•500 ns < TAD < 50

s

•TAD = 1/(FOSC/divisor)

Shaded areas indicate TAD out of range for accurate

conversions. If analog input is desired at these

frequencies, use INTOSC/8 for the ADC clock source.

TABLE 9-1:

TAD FOR ADCS SETTINGS WITH VARIOUS OSCILLATORS

TABLE 9-2:

EFFECTS OF SLEEP ON ADCON0

Source

ADCS

<1:0>

Divisor

MHz

8 MHz 4 MHz 1 MHz

500

kHz

350

kHz

200

kHz

100

kHz

32 kHz

INTOSC

—

—.5

s1 s

—

FOSC

s

.25

s.5 s1 s4 s8 s11 s20 s40 s

125

s

FOSC

s.5 s1 s2 s8 s16 s23 s40 s

s

250

s

FOSC

s1 s2 s4 s16 s32 s46 s

s 160 s 500 s

ANS<7:0>

ADCS1

ADCS0

CHS<3:0>

GO/DONE

ADON

Entering Sleep

Unchanged

Wake or Reset

PIC16F570 Datenblatt(PDF) 59 Page - Microchip Technology

PIC16F570 Datenblatt(HTML) 59 Page - Microchip Technology

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

Datenblatt Download

Link URL