PIC18F2420-I/SP Microchip Technology Inc., PIC18F2420-I/SP Datasheet - Page 327

• Manufacturer Part Number: PIC18F2420-I/SP
• Description: 28 Pin, 16 KB Flash, 768 RAM, 25 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC18F2420-I/SP

• A/d Inputs: 10-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 10 MIPS
• Eeprom Memory: 256 Bytes
• Input Output: 25
• Interface: I2C/SPI/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 28-pin SPDIP
• Programmable Memory: 16K Bytes
• Ram Size: 768 Bytes
• Speed: 40 MHz
• Timers: 1-8-bit, 3-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

26.4.3
FIGURE 26-6:
TABLE 26-6:
 2003 Microchip Technology Inc.
1A
1
2
3
4
Note 1:
Param.
No.
OSC1
CLKO
F
T
T
T
T
T
T
Instruction cycle period (T
except PLL. All specified values are based on characterization data for that particular oscillator type under
standard operating conditions with the device executing code. Exceeding these specified limits may result
in an unstable oscillator operation and/or higher than expected current consumption. All devices are tested
to operate at “min.” values with an external clock applied to the OSC1/CLKI pin. When an external clock
input is used, the “max.” cycle time limit is “DC” (no clock) for all devices.
Symbol
OSC
CY
OS
OS
OS
OS
TIMING DIAGRAMS AND SPECIFICATIONS
OSC
L,
H
R,
F
EXTERNAL CLOCK TIMING REQUIREMENTS
External CLKI Frequency
Oscillator Frequency
External CLKI Period
Oscillator Period
Instruction Cycle Time
External Clock in (OSC1)
High or Low Time
External Clock in (OSC1)
Rise or Fall Time
EXTERNAL CLOCK TIMING (ALL MODES EXCEPT PLL)
Q4
Characteristic
CY
(1)
) equals four times the input oscillator time base period for all configurations
Q1
1
(1)
(1)
(1)
PIC18F2220/2320/4220/4320
(1)
Min
250
100
160
100
160
DC
DC
DC
0.1
2.5
25
40
40
30
30
10
—
—
—
Q2
4
4
4
5
1
2
3
Max
6.25
250
250
250
7.5
40
25
25
10
33
—
—
—
—
—
—
—
—
—
—
20
50
4
1
Q3
3
Units
MHz
MHz
MHz
MHz
MHz
MHz
MHz
kHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
s
s
s
Q4
4
EC, ECIO (industrial)
EC, ECIO (extended)
RC osc
XT osc
HS osc
HS + PLL osc (industrial)
HS + PLL osc (extended)
LP Osc mode
EC, ECIO (industrial)
EC, ECIO (extended)
RC osc
XT osc
HS osc
HS + PLL osc (industrial)
HS + PLL osc (extended)
LP osc
T
T
XT osc
LP osc
HS osc
XT osc
LP osc
HS osc
CY
CY
= 4/F
= 4/F
4
OSC
OSC
Conditions
DS39599C-page 325
(industrial)
(extended)
Q1