PIC18LF2331-I/SO Microchip Technology, PIC18LF2331-I/SO Datasheet - Page 18

• Manufacturer Part Number: PIC18LF2331-I/SO
• Description: IC MCU FLASH 4KX16 28SOIC
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18LF2331-I/SO

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, Power Control PWM, QEI, POR, PWM, WDT
• Number Of I /o: 24
• Program Memory Size: 8KB (4K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Data Converters: A/D 5x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

PIC18F2331/2431/4331/4431
TABLE 3-6:
DS30500B-page 18
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 required sequence.
Step 6: Initiate write.
Step 7: Poll WR bit, repeat until the bit is clear.
Step 8: Disable writes.
Repeat steps 2 through 8 to write more data.
Note 1:
Command
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0010
0000
4-Bit
See Figure 4-4 for details on shift out data timing.
9E A6
9C A6
0E <Addr>
6E A9
OE <AddrH>
6E AA
0E <Data>
6E A8
84 A6
0E 55
6E A7
0E AA
6E A7
82 A6
50 A6
6E F5
<LSB><MSB>
94 A6
PROGRAMMING DATA MEMORY
Data Payload
BCF EECON1, EEPGD
BCF EECON1, CFGS
MOVLW <Addr>
MOVWF EEADR
MOVLW <AddrH>
MOVWF EEADRH
MOVLW <Data>
MOVWF EEDATA
BSF EECON1, WREN
MOVLW 0X55
MOVWF EECON2
MOVLW 0XAA
MOVWF EECON2
BSF EECON1, WR
MOVF EECON1, W, 0
MOVWF TABLAT
Shift out data
BCF EECON1, WREN
(1)
Core Instruction
 2010 Microchip Technology Inc.