12F683 datasheet(58/148 Pages) MICROCHIP

Part #	12F683

Description	8-Pin Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology

PDF	148 Pages

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Manufacturer	MICROCHIP [Microchip Technology]

Direct Link	http://www.microchip.com

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PIC12F683

DS41211B-page 56

Preliminary

 2004 Microchip Technology Inc.

TABLE 9-1:

TAD vs. DEVICE OPERATING FREQUENCIES

A/D Clock Source (TAD)

Device Frequency

Operation

ADCS<2:0>

20 MHz

5 MHz

4 MHz

1.25 MHz

2 TOSC

000

100 ns(2)

400 ns(2)

500 ns(2)

1.6

µs

4 TOSC

100

200 ns(2)

800 ns(2)

1.0

µs(2)

3.2

µs

8 TOSC

001

400 ns(2)

1.6

µs2.0 µs6.4 µs

16 TOSC

101

800 ns(2)

3.2

µs4.0 µs

12.8

µs(3)

32 TOSC

010

1.6

µs6.4 µs

8.0

µs(3)

25.6

µs(3)

64 TOSC

110

3.2

µs

12.8

µs(3)

16.0

µs(3)

51.2

µs(3)

A/D RC

x11

2-6

µs(1,4)

2-6

µs(1,4)

2-6

µs(1,4)

2-6

µs(1,4)

Legend: Shaded cells are outside of recommended range.

Note 1:

The A/D RC source has a typical TAD time of 4

µs for VDD > 3.0V.

These values violate the minimum required TAD time.

For faster conversion times, the selection of another clock source is recommended.

When the device frequency is greater than 1 MHz, the A/D RC clock source is only recommended if the

conversion will be performed during Sleep.

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