PIC16F627A_05 Datasheet, PDF (147/180 Pages) Microchip Technology – Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt 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
© 2005 Microchip Technology Inc.
DS40044D-page 145