PIC16LF1906-E/SO Microchip Technology, PIC16LF1906-E/SO Datasheet - Page 95
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PIC16LF1906-E/SO
Manufacturer Part Number
PIC16LF1906-E/SO
Description
14KB Flash, 512B RAM, LCD, 11x10b ADC, EUSART, NanoWatt XLP 28 SOIC .300in TUBE
Manufacturer
Microchip Technology
Series
PIC® XLP™ 16Fr
Datasheet
1.PIC16LF1904-EMV.pdf
(288 pages)
Specifications of PIC16LF1906-E/SO
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Connectivity
LIN, UART/USART
Peripherals
Brown-out Detect/Reset, LCD, POR, PWM, WDT
Number Of I /o
25
Program Memory Size
14KB (8K x 14)
Program Memory Type
FLASH
Eeprom Size
-
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Data Converters
A/D 11x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
28-SOIC (0.295", 7.50mm Width)
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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10.3
When modifying existing data in a program memory
row, and data within that row must be preserved, it must
first be read and saved in a RAM image. Program
memory is modified using the following steps:
1.
2.
3.
4.
5.
6.
7.
2011 Microchip Technology Inc.
Load the starting address of the row to be
modified.
Read the existing data from the row into a RAM
image.
Modify the RAM image to contain the new data
to be written into program memory.
Load the starting address of the row to be
rewritten.
Erase the program memory row.
Load the write latches with data from the RAM
image.
Initiate a programming operation.
Modifying Flash Program Memory
Preliminary
FIGURE 10-7:
PIC16LF1904/6/7
An image of the entire row read
The words to be modified are
changed in the RAM image
must be stored in RAM
Modify Operation
Modify Operation
Erase Operation
Read Operation
use RAM image
Write Operation
Modify Image
Figure 10-1
Figure 10-4
Figure 10-5
(Figure x.x)
(Figure x.x)
(Figure x.x)
FLASH PROGRAM
MEMORY MODIFY
FLOWCHART
Start
End
DS41569A-page 95
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