PIC18F2331-E/MM Microchip Technology, PIC18F2331-E/MM Datasheet - Page 266

• Manufacturer Part Number: PIC18F2331-E/MM
• Description: IC MCU FLASH 4KX16 28QFN
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F2331-E/MM

• 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): 4.2 V ~ 5.5 V
• Data Converters: A/D 5x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 28-QFN
• Core: PIC
• Processor Series: PIC18F
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 40 MHz
• Data Ram Size: 768 B
• Data Rom Size: 256 B
• On-chip Adc: Yes
• Number Of Programmable I/os: 24
• Number Of Timers: 4
• Operating Supply Voltage: 2 V to 5.5 V
• Mounting Style: SMD/SMT
• A/d Bit Size: 10 bit
• A/d Channels Available: 5
• Height: 0.88 mm
• Interface Type: EUSART, I2C, SPI, SSP
• Length: 6 mm
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Supply Voltage (max): 5.5 V, 5.8 V
• Supply Voltage (min): 3.9 V, 4.2 V
• Width: 6 mm
• For Use With: I3-DB18F4431 - BOARD DAUGHTER ICEPIC3
• Lead Free Status / RoHS Status: Request inventory verification / Request inventory verification
• Other names: PIC18F2331-E/ML; PIC18F2331-E/ML

PIC18F2331/2431/4331/4431
REGISTER 23-3:
DS39616D-page 266
bit 7
Legend:
R = Readable bit
-n = Value when device is unprogrammed
bit 7-6
bit 5
bit 4-1
bit 0
U-0
—
Unimplemented: Read as ‘0’
WINEN: Watchdog Timer Window Enable bit
1 = WDT window is disabled
0 = WDT window is enabled
WDTPS<3:0>: Watchdog Timer Postscale Select bits
1111 = 1:32,768
1110 = 1:16,384
1101 = 1:8,192
1100 = 1:4,096
1011 = 1:2,048
1010 = 1:1,024
1001 = 1:512
1000 = 1:256
0111 = 1:128
0110 = 1:64
0101 = 1:32
0100 = 1:16
0011 = 1:8
0010 = 1:4
0001 = 1:2
0000 = 1:1
WDTEN: Watchdog Timer Enable bit
1 = WDT is enabled
0 = WDT is disabled (control is placed on the SWDTEN bit)
U-0
—
CONFIG2H: CONFIGURATION REGISTER 2 HIGH (BYTE ADDRESS 300003h)
P = Programmable bit
WINEN
R/P-1
WDTPS3
R/P-1
U = Unimplemented bit, read as ‘0’
U = Unchanged from programmed state
WDTPS2
R/P-1
WDTPS1
R/P-1
 2010 Microchip Technology Inc.
WDTPS0
R/P-1
WDTEN
R/P-1
bit 0