PIC18F4550-I/ML Microchip Technology Inc., PIC18F4550-I/ML Datasheet - Page 31
PIC18F4550-I/ML
Manufacturer Part Number
PIC18F4550-I/ML
Description
44 PIN, 32 KB FLASH, 2048 RAM, FS-USB 2.0
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC18F4550-IML.pdf
(320 pages)
Specifications of PIC18F4550-I/ML
A/d Inputs
13-Channel, 10-Bit
Comparators
2
Cpu Speed
12 MIPS
Eeprom Memory
256 Bytes
Input Output
34
Interface
I2C/SPI/UART/USART/USB
Memory Type
Flash
Number Of Bits
8
Package Type
44-pin QFN
Programmable Memory
32K 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
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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
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