Datasheet

© 2009 Microchip Technology Inc. DS41236E-page 77
PIC12F508/509/16F505
TABLE 10-4: CALIBRATED INTERNAL RC FREQUENCIES – PIC12F508/509/16F505
FIGURE 10-5: I/O TIMING – PIC12F508/509/16F505
AC CHARACTERISTICS
Standard Operating Conditions (unless otherwise specified)
Operating Temperature -40°C ≤ TA ≤ +85°C (industrial),
-40°C ≤ T
A ≤ +125°C (extended)
Param
No.
Sym. Characteristic
Freq
Tolerance
Min. Typ† Max. Units Conditions
F10 F
OSC Internal Calibrated
INTOSC Frequency
(1)
± 1% 3.96 4.00 4.04 MHz VDD = 3.5V, TA = 25°C
± 2% 3.92 4.00 4.08 MHz 2.5V ≤ VDD ≤ 5.5V
0°C ≤ T
A ≤ +85°C
± 5% 3.80 4.00 4.20 MHz 2.0V ≤ V
DD ≤ 5.5V
-40°C ≤ T
A ≤ +85°C (Ind.)
-40°C ≤ T
A ≤ +125°C (Ext.)
* These parameters are characterized but not tested.
† Data in the Typical (“Typ”) column is at 5V, 25°C unless otherwise stated. These parameters are for
design guidance only and are not tested.
Note 1: To ensure these oscillator frequency tolerances, V
DD and VSS must be capacitively decoupled as close to
the device as possible. 0.1 uF and 0.01 uF values in parallel are recommended.
OSC1
I/O Pin
(input)
I/O Pin
(output)
Q4
Q1
Q2 Q3
17
20, 21
18
Old Value
New Value
19
Note: All tests must be done with specified capacitive loads (see data sheet) 50 pF on I/O pins and CLKOUT.