PIC18F4439-E/ML Microchip Technology, PIC18F4439-E/ML Datasheet - Page 17
![IC PIC MCU FLASH 6KX16 44QFN](/photos/6/81/68122/150-44-qfn_sml.jpg)
PIC18F4439-E/ML
Manufacturer Part Number
PIC18F4439-E/ML
Description
IC PIC MCU FLASH 6KX16 44QFN
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC18F2439-ISO.pdf
(322 pages)
3.PIC18F2439-ISO.pdf
(6 pages)
4.PIC18F2439-ISO.pdf
(34 pages)
Specifications of PIC18F4439-E/ML
Core Processor
PIC
Core Size
8-Bit
Speed
40MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LVD, POR, PWM, WDT
Number Of I /o
32
Program Memory Size
12KB (6K x 16)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
640 x 8
Voltage - Supply (vcc/vdd)
4.2 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
44-QFN
Processor Series
PIC18F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
640 B
Interface Type
I2C, SPI, AUSART
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
32
Number Of Timers
16 bit
Operating Supply Voltage
2 V to 5.5 V
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
3rd Party Development Tools
52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
Development Tools By Supplier
DV164005, DV164136
Minimum Operating Temperature
- 40 C
On-chip Adc
8
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
TABLE 3-6:
2010 Microchip Technology Inc.
Step 1: Direct access to Data EEPROM.
Step 2: Set the Data EEPROM Address Pointer.
Step 3: Load the data to be written.
Step 4: Enable memory writes.
Step 5: Perform Data EEPROM unlock sequence.
Step 6: Initiate write.
Step 7: Wait for P11 and then disable writes.
Repeat steps 2 through 7 to write more data.
4-bit Command
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
9E A6
9C A6
0E <Addr>
6E A9
0E <Data>
6E A8
84 A6
0E 55
6E A7
0E AA
6E A7
82 A6
00 00
00 00
94 A6
PROGRAMMING DATA MEMORY
Data Payload
BCF EECON1, EEPGD
BCF EECON1, CFGS
MOVLW <Addr>
MOVWF EEADR
MOVLW <Data>
MOVWF EEDATA
BSF EECON1, WREN
MOVLW 0X55
MOVWF EECON2
MOVLW 0XAA
MOVWF EECON2
BSF EECON1, WR
NOP
Hold SDATA low until write completes
BCF EECON1, WREN
Preliminary
Core Instruction
PIC18FXX39
DS30480C-page 17