PIC18F2550-I/SP Microchip Technology, PIC18F2550-I/SP Datasheet - Page 232
![IC PIC MCU FLASH 16KX16 28DIP](/photos/6/59/65908/150-28-dip_sml.jpg)
PIC18F2550-I/SP
Manufacturer Part Number
PIC18F2550-I/SP
Description
IC PIC MCU FLASH 16KX16 28DIP
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PCM18XR1.pdf
(438 pages)
3.PIC18F2221-ISO.pdf
(46 pages)
4.PIC18F2455-ISO.pdf
(14 pages)
5.PIC18F2455-ISO.pdf
(8 pages)
6.PIC18F2455-ISO.pdf
(26 pages)
7.PIC18F4550-IP.pdf
(430 pages)
8.PIC18LF2455-ISO.pdf
(430 pages)
Specifications of PIC18F2550-I/SP
Program Memory Type
FLASH
Program Memory Size
32KB (16K x 16)
Package / Case
28-DIP (0.300", 7.62mm)
Core Processor
PIC
Core Size
8-Bit
Speed
48MHz
Connectivity
I²C, SPI, UART/USART, USB
Peripherals
Brown-out Detect/Reset, HLVD, POR, PWM, WDT
Number Of I /o
24
Eeprom Size
256 x 8
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
4.2 V ~ 5.5 V
Data Converters
A/D 10x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
PIC18F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
1536 B
Interface Type
SPI, I2C, EAUSART
Maximum Clock Frequency
48 MHz
Number Of Programmable I/os
24
Number Of Timers
4
Operating Supply Voltage
2 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
Through Hole
3rd Party Development Tools
52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, ICE4000, DM163025, DV164136
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 10 Channel
Package
28SPDIP
Device Core
PIC
Family Name
PIC18
Maximum Speed
48 MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
I3-DB18F4550 - BOARD DAUGHTER ICEPIC3DM163025 - PIC DEM FULL SPEED USB DEMO BRDDVA18XP280 - DEVICE ADAPTER 18F2220 PDIP 28LD
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F2550-I/SP
Manufacturer:
MICROCHIP
Quantity:
2 100
- PIC16F616T-ISL PDF datasheet
- PCM18XR1 PDF datasheet #2
- PIC18F2221-ISO PDF datasheet #3
- PIC18F2455-ISO PDF datasheet #4
- PIC18F2455-ISO PDF datasheet #5
- PIC18F2455-ISO PDF datasheet #6
- PIC18F4550-IP PDF datasheet #7
- PIC18LF2455-ISO PDF datasheet #8
- Current page: 232 of 430
- Download datasheet (7Mb)
PIC18F2455/2550/4455/4550
19.4.12
An Acknowledge sequence is enabled by setting the
Acknowledge
(SSPCON2<4>). When this bit is set, the SCL pin is
pulled low and the contents of the Acknowledge data bit
are presented on the SDA pin. If the user wishes to gen-
erate an Acknowledge, then the ACKDT bit should be
cleared. If not, the user should set the ACKDT bit before
starting an Acknowledge sequence. The Baud Rate
Generator then counts for one rollover period (T
and the SCL pin is deasserted (pulled high). When the
SCL pin is sampled high (clock arbitration), the Baud
Rate Generator counts for T
pulled low. Following this, the ACKEN bit is automatically
cleared, the Baud Rate Generator is turned off and the
MSSP module then goes into an inactive state
(Figure 19-25).
19.4.12.1
If the user writes the SSPBUF when an Acknowledge
sequence is in progress, then WCOL is set and the
contents of the buffer are unchanged (the write doesn’t
occur).
FIGURE 19-25:
FIGURE 19-26:
DS39632D-page 230
ACKNOWLEDGE SEQUENCE
TIMING
WCOL Status Flag
Note: T
SSPIF
Note: T
SCL
SDA
Sequence
SDA
Acknowledge sequence starts here,
SCL
Falling edge of
ninth clock
Write to SSPCON2,
BRG
BRG
ACKNOWLEDGE SEQUENCE WAVEFORM
STOP CONDITION RECEIVE OR TRANSMIT MODE
= one Baud Rate Generator period.
= one Baud Rate Generator period.
ACKEN = 1, ACKDT = 0
Set SSPIF at the
end of receive
BRG
ACK
set PEN
Enable
write to SSPCON2
. The SCL pin is then
SDA asserted low before rising edge of clock
to setup Stop condition
bit,
8
D0
T
T
BRG
BRG
ACKEN
BRG
Preliminary
T
SCL brought high after T
BRG
)
Cleared in
software
T
BRG
P
ACK
SCL = 1 for T
after SDA sampled high. P bit (SSPSTAT<4>) is set.
T
BRG
19.4.13
A Stop bit is asserted on the SDA pin at the end of a
receive/transmit by setting the Stop Enable bit, PEN
(SSPCON2<2>). At the end of a receive/transmit, the
SCL line is held low after the falling edge of the ninth
clock. When the PEN bit is set, the master will assert
the SDA line low. When the SDA line is sampled low,
the Baud Rate Generator is reloaded and counts down
to ‘0’. When the Baud Rate Generator times out, the
SCL pin will be brought high and one T
Generator rollover count) later, the SDA pin will be
deasserted. When the SDA pin is sampled high while
SCL is high, the P bit (SSPSTAT<4>) is set. A T
later, the PEN bit is cleared and the SSPIF bit is set
(Figure 19-26).
19.4.13.1
If the user writes the SSPBUF when a Stop sequence
is in progress, then the WCOL bit is set and the
contents of the buffer are unchanged (the write doesn’t
occur).
T
BRG
Set SSPIF at the end
of Acknowledge sequence
9
PEN bit (SSPCON2<2>) is cleared by
hardware and the SSPIF bit is set
BRG
BRG
, followed by SDA = 1 for T
STOP CONDITION TIMING
ACKEN automatically cleared
WCOL Status Flag
Cleared in
software
© 2007 Microchip Technology Inc.
BRG
BRG
(Baud Rate
BRG
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