PIC16F767T-I/ML View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC16F767T-I/ML

28/40/44-Pin, 8-Bit CMOS Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology

Microchip Technology 

PIC16F7X7

FIGURE 18-20: A/D CONVERSION TIMING

BSF ADCON0, GO

Q4

A/D CLK 132

A/D DATA

ADRES

ADIF

GO

(TOSC/2)(1)

1 TCY

131

130

9

8

7 ... ...

2

1

0

OLD_DATA

NEW_DATA

DONE

SAMPLE

Sampling Stopped

Note: 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 18-16: A/D CONVERSION REQUIREMENTS

Param

No.

Symbol

Characteristic

Min

130 TAD

A/D Clock Period

PIC16F7X7

1.6

PIC16LF7X7

3.0

PIC16F7X7

2.0

PIC16LF7X7

3.0

131 TCNV Conversion Time (not including S/H time)

(Note 1)

132 TACQ Acquisition Time

(Note 2)

Typ†

—

—

4.0

6.0

—

40

Max Units

Conditions

—

µs TOSC based, VREF ≥ 3.0V

—

µs TOSC based, VREF ≥ 2.0V

6.0 µs A/D RC mode

9.0 µs A/D RC mode

12 TAD

—

µs

10*

—

—

µs The minimum time is the

amplifier settling time. This may

be used if the “new” input

voltage has not changed by

more than 1 LSb (i.e., 5.0 mV @

5.12V) from the last sampled

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.

§ This specification ensured by design.

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

2: See Section 12.1 “A/D Acquisition Requirements” for minimum conditions.

DS30498C-page 236

 2004 Microchip Technology Inc.

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