PIC18F2455-I/SP Microchip Technology Inc., PIC18F2455-I/SP Datasheet - Page 31

• 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

TABLE 2-3:
© 2006 Microchip Technology Inc.
Legend:
Note 1:
Input Oscillator
Frequency
12 MHz
8 MHz
4 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 (CONTINUED)
(PLLDIV2:PLLDIV0)
PLL Division
3 (010)
2 (001)
1 (000)
Advance Information
HSPLL, ECPLL, XTPLL,
HSPLL, ECPLL, ECPIO
HSPLL, ECPLL, ECPIO
XT, HS, EC, ECIO
(FOSC3:FOSC0)
HS, EC, ECIO
HS, EC, ECIO
Clock Mode
ECPIO
(CPUDIV1:CPUDIV0)
PIC18F2450/4450
MCU Clock Division
None (00)
None (00)
None (00)
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)
Clock Frequency
Microcontroller
DS39760A-page 29
2.67 MHz
1.33 MHz
12 MHz
48 MHz
32 MHz
24 MHz
16 MHz
48 MHz
32 MHz
24 MHz
16 MHz
48 MHz
32 MHz
24 MHz
16 MHz
6 MHz
4 MHz
3 MHz
8 MHz
4 MHz
2 MHz
4 MHz
2 MHz
1 MHz