PIC18F2550-I/SP Microchip Technology Inc., PIC18F2550-I/SP Datasheet - Page 235
PIC18F2550-I/SP
Manufacturer Part Number
PIC18F2550-I/SP
Description
Microcontroller; 32 KB Flash; 2048 RAM; 256 EEPROM; 24 I/O; 28-Pin-SPDIP
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC18F2550-ISP.pdf
(430 pages)
Specifications of PIC18F2550-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
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F2550-I/SP
Manufacturer:
MICROCHIP
Quantity:
2 100
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FIGURE 19-29:
FIGURE 19-30:
© 2006 Microchip Technology Inc.
SDA
SCL
SEN
BCLIF
S
SSPIF
S
BCLIF
SSPIF
SDA
SCL
SEN
BUS COLLISION DURING START CONDITION (SCL = 0)
BRG RESET DUE TO SDA ARBITRATION DURING START CONDITION
SDA pulled low by other master.
Reset BRG and assert SDA.
‘
‘
0
0
SCL = 0 before BRG time-out,
bus collision occurs. Set BCLIF.
’
’
Set SEN, enable Start
sequence if SDA = 1, SCL = 1
Less than T
BRG
SDA = 0, SCL = 1
PIC18F2455/2550/4455/4550
SDA = 0, SCL = 1
Preliminary
SDA = 0, SCL = 1,
set SSPIF
Set SEN, enable Start
sequence if SDA = 1, SCL = 1
T
BRG
S
Set S
T
BRG
T
BRG
Set SSPIF
SCL pulled low after BRG
time-out
SCL = 0 before SDA = 0,
bus collision occurs. Set BCLIF.
Interrupt cleared
in software
Interrupts cleared
in software
‘
‘
0
0
‘0’
’
’
DS39632C-page 233
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