PIC18F2431-E/SO Microchip Technology, PIC18F2431-E/SO Datasheet - Page 119

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

Specifications of PIC18F2431-E/SO

• Core Size: 8-Bit
• Program Memory Size: 16KB (8K x 16)
• Core Processor: PIC
• 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 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-SOIC (7.5mm Width)
• Controller Family/series: PIC18
• No. Of I/o's: 24
• Eeprom Memory Size: 256Byte
• Ram Memory Size: 768Byte
• Cpu Speed: 40MHz
• No. Of Timers: 4
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: I3-DB18F4431 - BOARD DAUGHTER ICEPIC3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

FIGURE 10-11:
© 2007 Microchip Technology Inc.
Data Bus
WR PORTB
WR TRISB
PORT/PWM Select
PWM4 Data
Set RBIF
BLOCK DIAGRAM OF RB5
From other
RB7:RB4 pins
Data Latch
D
TRIS Latch
D
CK
CK
LVP Configuration Bit:
1 = Low-Voltage Programming Enable
0 = Only High-Voltage Programming
RD TRISB
RD PORTB
Q
Q
Q
Enable ICSP™
0
1
PIC18F2331/2431/4331/4431
Q
Q
Preliminary
EN
EN
D
D
V
N
V
P
DD
SS
TTL
Input
Buffer
Q1
RD PORTB
Q3
RBPU
V
P
DD
Weak
Pull-up
Schmitt
Trigger
DS39616C-page 117
RB5/PGM