PIC16LC773I/SO View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC16LC773I/SO

28/40-Pin, 8-Bit CMOS Microcontrollers w/ 12-Bit A/D

Microchip Technology 

PIC16C77X

FIGURE 15-9: A/D CONVERSION TIMING (NORMAL MODE)

BSF ADCON0, GO

134

Q4

A/D CLK

131

130

1/2 Tcy

A/D DATA

9

8

7

6

3

2

1

0

ADRES

OLD_DATA

NEW_DATA

ADIF

GO

SAMPLE

132

SAMPLING STOPPED

DONE

Note 1: If the A/D clock source is selected as RC, a time of TCY is added before the A/D clock starts. This allows the

SLEEP instruction to be executed.

TABLE 15-10 A/D CONVERSION REQUIREMENTS

Parameter

No.

130*

Sym Characteristic

TAD A/D clock period

130*

TAD A/D Internal RC

oscillator period

131*

132*

TCNV

Conversion time (not

including

acquisition time)

(Note 1)

TACQ Acquisition Time

Min

1.6

3.0

3.0

2.0

—

Note 2

Typ†

—

—

6.0

4.0

13TAD

11.5

Max Units

Conditions

—

s Tosc based, VREF 2.5V

—

s Tosc based, VREF full range

ADCS1:ADCS0 = 11 (RC mode)

9.0

s

At VDD = 2.5V

6.0

s

At VDD = 5.0V

—

TAD Set GO bit to new data in A/D result

register

—

s

5*

—

—

s The minimum time is the amplifier

settling time. This may be used if

the “new” input voltage has not

changed by more than 1LSb (i.e

1mV @ 4.096V) from the last sam-

pled voltage (as stated on CHOLD).

134*

TGO Q4 to A/D clock start

—

TOSC/2

—

— If the A/D clock source is selected

as RC, a time of TCY is added

before the A/D clock starts. This

allows the SLEEP instruction to be

executed.

* These parameters are characterized but not tested.

† Data in “Typ” column is at 5V, 25C unless otherwise stated. These parameters are for design guidance only and are not

tested.

Note 1: ADRES register may be read on the following TCY cycle.

2: See Section 11.6 for minimum conditions.

DS30275B-page 166

Advance Information

 1999-2013 Microchip Technology Inc.

Share Link: