PIC18F2550-I/SP Microchip Technology Inc., PIC18F2550-I/SP Datasheet - Page 395

• 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.

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

TABLE 28-22: MASTER SSP I
© 2006 Microchip Technology Inc.
100
101
102
103
90
91
106
107
92
109
110
D102
Note 1:
Param.
No.
2:
T
T
T
T
T
T
T
T
T
T
T
C
Symbol
SU
SU
SU
AA
HIGH
LOW
R
F
HD
HD
BUF
B
Maximum pin capacitance = 10 pF for all I
A Fast mode I
must then be met. This will automatically be the case if the device does not stretch the LOW period of the
SCL signal. If such a device does stretch the LOW period of the SCL signal, it must output the next data bit
to the SDA line, parameter #102 + parameter #107 = 1000 + 250 = 1250 ns (for 100 kHz mode), before the
SCL line is released.
:
:
:
:
:
STA
DAT
STO
STA
DAT
Clock High Time 100 kHz mode
Clock Low Time 100 kHz mode
SDA and SCL
Rise Time
SDA and SCL
Fall Time
Start Condition
Setup Time
Start Condition
Hold Time
Data Input
Hold Time
Data Input
Setup Time
Stop Condition
Setup Time
Output Valid
from Clock
Bus Free Time
Bus Capacitive Loading
2
C bus device can be used in a Standard mode I
Characteristic
2
C™ BUS DATA REQUIREMENTS
400 kHz mode
1 MHz mode
400 kHz mode
1 MHz mode
100 kHz mode
400 kHz mode
1 MHz mode
100 kHz mode
400 kHz mode
1 MHz mode
100 kHz mode
400 kHz mode
1 MHz mode
100 kHz mode
400 kHz mode
1 MHz mode
100 kHz mode
400 kHz mode
100 kHz mode
400 kHz mode
100 kHz mode
400 kHz mode
1 MHz mode
100 kHz mode
400 kHz mode
1 MHz mode
100 kHz mode
400 kHz mode
PIC18F2455/2550/4455/4550
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
Preliminary
2
C™ pins.
2(T
2(T
2(T
2(T
2(T
2(T
2(T
2(T
2(T
2(T
2(T
2(T
2(T
2(T
2(T
OSC
OSC
OSC
OSC
OSC
OSC
20 + 0.1 C
20 + 0.1 C
OSC
OSC
OSC
OSC
OSC
OSC
OSC
OSC
OSC
Min
)(BRG + 1)
)(BRG + 1)
)(BRG + 1)
)(BRG + 1)
)(BRG + 1)
)(BRG + 1)
)(BRG + 1)
)(BRG + 1)
)(BRG + 1)
)(BRG + 1)
)(BRG + 1)
)(BRG + 1)
250
100
)(BRG + 1)
)(BRG + 1)
)(BRG + 1)
4.7
1.3
—
—
—
—
—
—
—
—
0
0
B
B
2
C bus system but parameter #107
1000
3500
1000
Max
300
300
300
300
100
0.9
400
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Units
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
pF
C
10 to 400 pF
C
10 to 400 pF
Only relevant for
Repeated Start
condition
After this period, the first
clock pulse is generated
(Note 2)
Time the bus must be free
before a new transmission
can start
B
B
is specified to be from
is specified to be from
DS39632C-page 393
Conditions
250 ns