PIC18F4550-I/ML Microchip Technology Inc., PIC18F4550-I/ML Datasheet - Page 288
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 21-8:
TABLE 21-10: RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER, POWER-UP TIMER
DS39760A-page 286
30
31
32
33
34
35
36
37
38
39
Legend: TBD = To Be Determined
Param.
No.
Reference Voltage
Internal Reference
Enable Internal
Voltage Stable
Symbol
TmcL
T
T
T
T
T
T
T
T
T
OST
CSD
WDT
IOZ
IRVST
IOBST
PWRT
BOR
LVD
V
IRVST
V
DD
AND BROWN-OUT RESET REQUIREMENTS
MCLR Pulse Width (low)
Watchdog Timer Time-out Period
(no postscaler)
Oscillator Start-up Timer Period
Power-up Timer Period
I/O High-Impedance from MCLR
Low or Watchdog Timer Reset
Brown-out Reset Pulse Width
Time for Internal Reference
Voltage to become Stable
Low-Voltage Detect Pulse Width
CPU Start-up Time
Time for INTRC to Stabilize
BROWN-OUT RESET TIMING
Characteristic
Advance Information
36
BV
DD
1024 T
Min
200
200
—
—
—
—
—
2
5
OSC
4.00
65.5
Typ
20
—
—
—
—
—
2
1
35
1024 T
Max
TBD
TBD
50
10
—
—
—
—
—
OSC
Units
© 2006 Microchip Technology Inc.
ms
ms
ms
—
s
s
s
s
s
s
T
V
V
OSC
DD
DD
= OSC1 period
Conditions
B
V
V
VDD
LVD
BGAP
(see D005)
= 1.2V
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