PIC16F628A-I/SO View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC16F628A-I/SO

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

Microchip Technology 

PIC16F627A/628A/648A

TABLE 17-5: PRECISION INTERNAL OSCILLATOR PARAMETERS

Parameter

No.

Sym

Characteristic

Min Typ Max Units

Conditions

F10

FIOSC Oscillator Center frequency

—

4

— MHz

F13

ΔIOSC Oscillator Accuracy

3.96

4

4.04 MHz VDD = 3.5 V, 25°C

3.92

4

4.08 MHz 2.0V ≤ VDD ≤ 5.5V

0°C ≤ TA ≤ +85°C

3.80

4

4.20 MHz 2.0V ≤ VDD ≤ 5.5V

-40°C ≤ TA ≤ +85°C (IND)

-40°C ≤ TA ≤ +125°C (EXT)

F14*

TIOSCST Oscillator Wake-up from Sleep —

6

start-up time

—

4

8

μs VDD = 2.0V, -40°C to +85°C

6

μs VDD = 3.0V, -40°C to +85°C

Legend: TBD = To Be Determined.

* Characterized but not tested.

—

3

5

μs VDD = 5.0V, -40°C to +85°C

FIGURE 17-5:

CLKOUT AND I/O TIMING

Q4

OSC1

CLKOUT

Q1

Q2

10

13

14

22

23

19

18

I/O Pin

(input)

17

15

I/O Pin

(output)

Old Value

20, 21

Q3

11

12

16

New Value

© 2007 Microchip Technology Inc.

DS40044F-page 143

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