PIC18F2455-I/SP Microchip Technology Inc., PIC18F2455-I/SP Datasheet - Page 30

• Manufacturer Part Number: PIC18F2455-I/SP
• Description: Microcontroller; 24 KB Flash; 2048 RAM; 256 EEPROM; 24 I/O; 28-Pin-SPDIP
• Manufacturer: Microchip Technology Inc.

Specifications of PIC18F2455-I/SP

• A/d Inputs: 10-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 12 MIPS
• Eeprom Memory: 256 Bytes
• Input Output: 23
• Interface: I2C/SPI/USART/USB
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 28-pin SPDIP
• Programmable Memory: 24K Bytes
• Ram Size: 2K Bytes
• Speed: 48 MHz
• Timers: 1-8-bit, 3-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

PIC18F2450/4450
TABLE 2-3:
DS39760A-page 28
Legend:
Note 1:
Input Oscillator
Frequency
48 MHz
48 MHz
40 MHz
24 MHz
20 MHz
16 MHz
All clock frequencies, except 24 MHz, are exclusively associated with full-speed USB operation (USB clock of 48 MHz).
Bold is used to highlight clock selections that are compatible with low-speed USB operation (system clock of 24 MHz,
USB clock of 6 MHz).
Only valid when the USBDIV Configuration bit is cleared.
OSCILLATOR CONFIGURATION OPTIONS FOR USB OPERATION
(PLLDIV2:PLLDIV0)
PLL Division
12 (111)
10 (110)
N/A
6 (101)
5 (100)
4 (011)
(1)
Advance Information
HSPLL, ECPLL, ECPIO
HSPLL, ECPLL, ECPIO
HSPLL, ECPLL, ECPIO
(FOSC3:FOSC0)
ECPLL, ECPIO
ECPLL, ECPIO
HS, EC, ECIO
HS, EC, ECIO
HS, EC, ECIO
Clock Mode
EC, ECIO
EC, ECIO
EC, ECIO
(CPUDIV1:CPUDIV0)
MCU Clock Division
None (00)
None (00)
None (00)
None (00)
None (00)
None (00)
2 (01)
3 (10)
4 (11)
2 (01)
3 (10)
4 (11)
2 (00)
3 (01)
4 (10)
6 (11)
2 (01)
3 (10)
4 (11)
2 (00)
3 (01)
4 (10)
6 (11)
2 (01)
3 (10)
4 (11)
2 (00)
3 (01)
4 (10)
6 (11)
2 (01)
3 (10)
4 (11)
2 (00)
3 (01)
4 (10)
6 (11)
2 (01)
3 (10)
4 (11)
2 (00)
3 (01)
4 (10)
6 (11)
© 2006 Microchip Technology Inc.
Clock Frequency
Microcontroller
13.33 MHz
6.67 MHz
5.33 MHz
48 MHz
24 MHz
16 MHz
12 MHz
48 MHz
24 MHz
16 MHz
12 MHz
48 MHz
32 MHz
24 MHz
16 MHz
40 MHz
20 MHz
10 MHz
48 MHz
32 MHz
24 MHz
16 MHz
24 MHz
12 MHz
48 MHz
32 MHz
24 MHz
16 MHz
20 MHz
10 MHz
48 MHz
32 MHz
24 MHz
16 MHz
16 MHz
48 MHz
32 MHz
24 MHz
16 MHz
8 MHz
6 MHz
5 MHz
8 MHz
4 MHz