PIC18F2431-I/SO Microchip Technology, PIC18F2431-I/SO Datasheet - Page 79

• Manufacturer Part Number: PIC18F2431-I/SO
• Description: IC PIC MCU FLASH 8KX16 28SOIC
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F2431-I/SO

• Program Memory Type: FLASH
• Program Memory Size: 16KB (8K x 16)
• Package / Case: 28-SOIC (7.5mm Width)
• 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
• Eeprom Size: 256 x 8
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 5x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 768 B
• Interface Type: EUSART/I2C/SPI/SSP
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 24
• Number Of Timers: 4
• 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, DM183021, DV164136
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 5-ch x 10-bit
• Package: 28SOIC W
• Device Core: PIC
• Family Name: PIC18
• Maximum Speed: 40 MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT28SO-1 - SOCKET TRANSITION 28SOIC 300MILI3-DB18F4431 - BOARD DAUGHTER ICEPIC3
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

REGISTER 6-1:
 2003 Microchip Technology Inc.
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
EECON1 REGISTER
bit 7
EEPGD: Flash Program or Data EEPROM Memory Select bit
1 = Access program Flash memory
0 = Access data EEPROM memory
CFGS: Flash Program/Data EE or Configuration Select bit
1 = Access configuration registers
0 = Access program Flash or data EEPROM memory
Unimplemented: Read as ‘0’
FREE: Flash Row Erase Enable bit
1 = Erase the program memory row addressed by TBLPTR on the next WR command
0 = Perform write only
WRERR: EEPROM Error Flag bit
1 = A write operation was prematurely terminated (any Reset during self-timed
0 = The write operation completed normally
WREN: Write Enable bit
1 = Allows erase or write cycles
0 = Inhibits erase or write cycles
WR: Write Control bit
1 = Initiates a data EEPROM erase/write cycle or a program memory erase cycle or write
0 = Write cycle completed
RD: Read Control bit
1 = Initiates a memory read
0 = Read completed
Legend:
R = Readable bit
W = Writable bit
x = Bit is unknown
EEPGD
R/W-x
Note:
(cleared by completion of erase operation – TBLPTR<5:0> are ignored)
programming)
cycle.
(The operation is self-timed and the bit is cleared by hardware once write is complete. The
WR bit can only be set (not cleared) in software.)
(Read takes one cycle. RD is cleared in hardware. The RD bit can only be set (not cleared)
in software. RD bit cannot be set when EEPGD = 1.)
When a WRERR occurs, the EEPGD and CFGS bits are not cleared. This allows
tracing of the error condition.
CFGS
R/W-x
PIC18F2331/2431/4331/4431
S = Settable only
- n = Value at POR
U-0
Preliminary
—
R/W-0
FREE
WRERR
R/W-x
U = Unimplemented bit, read as ‘0’
‘1’ = Bit is set
WREN
R/W-0
‘0’ = Bit is cleared
R/S-0
WR
DS39616B-page 77
R/S-0
RD
bit 0