PIC18LF6527-I/PT Microchip Technology, PIC18LF6527-I/PT Datasheet - Page 95
![IC PIC MCU FLASH 24KX16 64TQFP](/photos/6/81/68123/c04-066_pf_sml.jpg)
PIC18LF6527-I/PT
Manufacturer Part Number
PIC18LF6527-I/PT
Description
IC PIC MCU FLASH 24KX16 64TQFP
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.DV164136.pdf
(446 pages)
3.PIC18F6527-IPT.pdf
(10 pages)
Specifications of PIC18LF6527-I/PT
Core Size
8-Bit
Program Memory Size
48KB (24K x 16)
Core Processor
PIC
Speed
40MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, HLVD, POR, PWM, WDT
Number Of I /o
54
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
3936 x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-TFQFP
Controller Family/series
PIC18
No. Of I/o's
54
Eeprom Memory Size
1024Byte
Ram Memory Size
3.84375KB
Cpu Speed
40MHz
No. Of Timers
5
Processor Series
PIC18LF
Core
PIC
Data Bus Width
8 bit
Data Ram Size
3936 B
Interface Type
SPI, I2C, EUSART
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
54
Number Of Timers
5
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, DV164136, DM183032
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 12 Channel
Package
64TQFP
Device Core
PIC
Family Name
PIC18
Maximum Speed
40 MHz
Operating Supply Voltage
2.5|3.3|5 V
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
Company:
Part Number:
PIC18LF6527-I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
Part Number:
PIC18LF6527-I/PT
Manufacturer:
MIC
Quantity:
20 000
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6.5
The minimum programming block is 32 words or
64 bytes. Word or byte programming is not supported.
Table writes are used internally to load the holding
registers needed to program the Flash memory. There
are 64 holding registers used by the table writes for
programming.
Since the Table Latch (TABLAT) is only a single byte, the
TBLWT instruction may need to be executed 64 times for
each programming operation. All of the table write oper-
ations will essentially be short writes because only the
holding registers are written. At the end of updating the
64 holding registers, the EECON1 register must be
written to in order to start the programming operation
with a long write.
FIGURE 6-5:
6.5.1
The sequence of events for programming an internal
program memory location should be:
1.
2.
3.
4.
5.
6.
7.
© 2008 Microchip Technology Inc.
TBLPTR = xxxxx0
Read 64 bytes into RAM.
Update data values in RAM as necessary.
Load Table Pointer register with address being
erased.
Execute the row erase procedure.
Load Table Pointer register with address of first
byte being written.
Write the 64 bytes into the holding registers with
auto-increment.
Set the EECON1 register for the write operation:
• set EEPGD bit to point to program memory;
• clear the CFGS bit to access program memory;
• set WREN to enable byte writes.
Writing to Flash Program Memory
FLASH PROGRAM MEMORY WRITE
SEQUENCE
Holding Register
8
TABLE WRITES TO FLASH PROGRAM MEMORY
TBLPTR = xxxxx1
Holding Register
8
Program Memory
TBLPTR = xxxxx2
Write Register
TABLAT
The long write is necessary for programming the inter-
nal Flash. Instruction execution is halted while in a long
write cycle. The long write will be terminated by the
internal programming timer.
The EEPROM on-chip timer controls the write time.
The write/erase voltages are generated by an on-chip
charge pump, rated to operate over the voltage range
of the device.
8.
9.
10. Write 0AAh to EECON2.
11. Set the WR bit. This will begin the write cycle.
12. The CPU will stall for duration of the write for T
13. Re-enable interrupts.
14. Verify the memory (table read).
An example of the required code is shown in
Example 6-3 on the following page.
PIC18F8722 FAMILY
Holding Register
Note:
Note:
Disable interrupts.
Write 55h to EECON2.
(see parameter D133A).
8
The default value of the holding registers on
device Resets and after write operations is
FFh. A write of FFh to a holding register
does not modify that byte. This means that
individual bytes of program memory may be
modified, provided that the change does not
attempt to change any bit from a ‘0’ to a ‘1’.
When modifying individual bytes, it is not
necessary to load all 64 holding registers
before executing a write operation.
Before setting the WR bit, the Table
Pointer address needs to be within the
intended address range of the 64 bytes in
the holding register.
TBLPTR = xxxx3F
Holding Register
DS39646C-page 93
8
IW
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