PIC18F4321 Datasheet, PDF (350/396 Pages) Microchip Technology – 28/40/44-Pin Enhanced Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology

PIC18F4321 FAMILY
TABLE 26-7: PLL CLOCK TIMING SPECIFICATIONS (VDD = 4.2V TO 5.5V)
Param
No.
Sym
Characteristic
Min
Typ†
Max Units Conditions
F10 FOSC Oscillator Frequency Range
4
—
10 MHz HS mode only
F11 FSYS On-Chip VCO System Frequency
16
—
40 MHz HS mode only
F12
t_rc
PLL Start-up Time (Lock Time)
F13 ΔCLK CLKO Stability (Jitter)
—
—
2
ms
-2
—
+2
%
† Data in “Typ” column is at 5V, 25°C unless otherwise stated. These parameters are for design guidance
only and are not tested.
TABLE 26-8: AC CHARACTERISTICS: INTERNAL RC ACCURACY
PIC18F2221/2321/4221/4321 (INDUSTRIAL)
PIC18LF2221/2321/4221/4321 (INDUSTRIAL)
PIC18LF2221/2321/4221/4321
(Industrial)
Standard Operating Conditions (unless otherwise stated)
Operating temperature
-40°C ≤ TA ≤ +85°C for industrial
PIC18F2221/2321/4221/4321
(Industrial)
Standard Operating Conditions (unless otherwise stated)
Operating temperature
-40°C ≤ TA ≤ +85°C for industrial
Param
No.
Device
Min Typ Max Units
Conditions
INTOSC Accuracy @ Freq = 8 MHz, 4 MHz, 2 MHz, 1 MHz, 500 kHz, 250 kHz, 125 kHz, 31 kHz⁽¹⁾
PIC18LF2221/2321/4221/4321 -2
+/-1
2
%
+25°C
VDD = 2.0-5.5V
-5
—
5
%
-10°C to +85°C
VDD = 2.0-5.5V
-10 +/-1 10
%
-40°C to +85°C
VDD = 2.0-5.5V
PIC18F2221/2321/4221/4321 -2
+/-1
2
%
+25°C
VDD = 4.2-5.5V
-5
—
5
%
-10°C to +85°C
VDD = 4.2-5.5V
-10 +/-1 10
INTRC Accuracy @ Freq = 31 kHz^(2,3)
%
-40°C to +85°C
VDD = 4.2-5.5V
PIC18LF2221/2321/4221/4321 26.562 — 35.938 kHz -40°C to +85°C
VDD = 2.0-5.5V
PIC18F2221/2321/4221/4321 26.562 — 35.938 kHz -40°C to +85°C
VDD = 4.2-5.5V
Legend:
Note 1:
2:
3:
Shading of rows is to assist in readability of the table.
Frequency calibrated at 25°C. OSCTUNE register can be used to compensate for temperature drift.
INTRC frequency after calibration.
Change of INTRC frequency as VDD changes.
DS39689E-page 348
Preliminary
© 2007 Microchip Technology Inc.