PIC18F4550-I/ML Microchip Technology Inc., PIC18F4550-I/ML Datasheet - Page 292
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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PIC18F2450/4450
FIGURE 21-13:
TABLE 21-15: USB LOW-SPEED TIMING REQUIREMENTS
TABLE 21-16: USB FULL-SPEED REQUIREMENTS
DS39760A-page 290
Param
Param
No.
No.
T
T
T
T
T
T
Symbol
Symbol
LR
LF
LRFM
FR
FF
FRFM
Transition Rise Time
Transition Fall Time
Rise/Fall Time Matching
Transition Rise Time
Transition Fall Time
Rise/Fall Time Matching
USB SIGNAL TIMING
90%
10%
V
CRS
Characteristic
Characteristic
Advance Information
USB Data Differential Lines
T
LR
, T
FR
Min
Min
75
75
80
90
4
4
Typ
Typ
—
—
—
—
—
—
111.1
T
Max
Max
300
300
125
20
20
LF
, T
FF
© 2006 Microchip Technology Inc.
Units
Units
ns
ns
ns
ns
%
%
C
C
C
C
L
L
L
L
= 200 to 600 pF
= 200 to 600 pF
= 50 pF
= 50 pF
Conditions
Conditions
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