PIC18LF2455-I/SO Microchip Technology, PIC18LF2455-I/SO Datasheet - Page 10
![IC PIC MCU FLASH 12KX16 28SOIC](/photos/6/59/65909/150-28-soic_sml.jpg)
PIC18LF2455-I/SO
Manufacturer Part Number
PIC18LF2455-I/SO
Description
IC PIC MCU FLASH 12KX16 28SOIC
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.PIC18LF2455-ISO.pdf
(430 pages)
Specifications of PIC18LF2455-I/SO
Core Size
8-Bit
Program Memory Size
24KB (12K x 16)
Core Processor
PIC
Speed
48MHz
Connectivity
I²C, SPI, UART/USART, USB
Peripherals
Brown-out Detect/Reset, HLVD, POR, PWM, WDT
Number Of I /o
24
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Data Converters
A/D 10x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
28-SOIC (7.5mm Width)
Controller Family/series
PIC18
No. Of I/o's
24
Eeprom Memory Size
256Byte
Ram Memory Size
2KB
Cpu Speed
48MHz
No. Of Timers
4
Processor Series
PIC18LF
Core
PIC
Data Bus Width
8 bit
Data Ram Size
2048 B
Interface Type
SPI, I2C, EAUSART
Maximum Clock Frequency
48 MHz
Number Of Programmable I/os
24
Number Of Timers
1 x 8
Operating Supply Voltage
2 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, ICE4000, DM163014, DV164136
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 10 Channel
Package
28SOIC W
Device Core
PIC
Family Name
PIC18
Maximum Speed
48 MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
PIC18LF2455-I/SO
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
PIC18F2455/2550/4455/4550
26. Module: MSSP
27. Module: MSSP
DS80220J-page 10
With MSSP in SPI Master mode, F
Timer2/2 clock rate and CKE = 0, a write collision
may occur if SSPBUF is loaded immediately after
the transfer is complete. A delay may be required
after the MSSP Interrupt Flag bit, SSPIF, is set or
the Buffer Full bit, BF, is set, and before writing
SSPBUF. If the delay is insufficiently short, a write
collision may occur as indicated by the WCOL bit
being set.
Work around
Add a software delay of one SCK period after
detecting the completed transfer and prior to
updating the SSPBUF contents. Verify the WCOL
bit is clear after writing SSPBUF. If the WCOL is
set, clear the bit in software and rewrite the
SSPBUF register.
Date Codes that pertain to this issue:
All engineering and production devices.
In an I
unaddressed slave may respond to bus activity
when data on the bus matches its address. The
first occurrence will set the BF bit. The second
occurrence will set the BF and the SSPOV bits. In
both situations, the SSPIF bit is not set and an
interrupt will not occur. The device will vector to the
Interrupt Service Routine only if the interrupt is
enabled and an address match occurs.
Work around
The I
I
Date Codes that pertain to this issue:
All engineering and production devices.
2
C event to maintain normal operation.
2
C slave must clear the SSPOV bit after each
2
C system with multiple slave nodes, an
OSC
/64 or
28. Module: MSSP (SPI Mode)
FIGURE 1:
EXAMPLE 6:
LOOP BTFSSPIR1, SSPIF
When the SPI is using Timer2/2 as the clock
source, a shorter than expected SCK pulse may
occur on the first bit of the transmitted/received
data (Figure 1).
Work around
To avoid producing the short pulse, turn off Timer2
and clear the TMR2 register, load the SSPBUF
with the data to transmit and then turn Timer2 back
on. Refer to Example 6 for sample code.
Date Codes that pertain to this issue:
All engineering and production devices.
BRA LOOP
BCF PIR1, SSPIF ;Clear flag
MOVFSSPBUF, W
MOVWFRXDATA
MOVFTXDATA, W
BCF T2CON, TMR2ON;Timer2 off
CLRFTMR2
MOVWFSSPBUF
SDO
SCK
Write SSPBUF
bit 7 = 1 bit 6 = 0
SCK PULSE VARIATION
USING TIMER2/2
AVOIDING THE INITIAL
SHORT SCK PULSE
;(Xmit complete?)
;Save in user RAM
;W = TXDATA
;Clear Timer2
;Xmit New data
© 2008 Microchip Technology Inc.
;No
;W = SSPBUF
;Data received?
bit 5 = 1
. . . .