PIC18F4431-I/P Microchip Technology Inc., PIC18F4431-I/P Datasheet - Page 115

• Manufacturer Part Number: PIC18F4431-I/P
• Description: Microcontroller; 16 KB Flash; 768 RAM; 256 EEPROM; 36 I/O; 40-Pin-PDIP
• Manufacturer: Microchip Technology Inc.

Specifications of PIC18F4431-I/P

• A/d Inputs: 9-Channel, 10-Bit
• Cpu Speed: 10 MIPS
• Eeprom Memory: 256 Bytes
• Input Output: 36
• Interface: I2C/SPI/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 40-pin PDIP
• Programmable Memory: 16K Bytes
• Ram Size: 768 Bytes
• Speed: 40 MHz
• Timers: 1-8-bit, 3-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

FIGURE 10-9:
 2003 Microchip Technology Inc.
RBPU
PORT/PWM Select
Note 1: To enable weak pull-ups, set the appropriate TRIS bit(s) and clear the RBPU bit (INTCON2<7>).
PWM0,1,2, 3 Data
(1)
RD PORTB
WR TRISB
WR LATB
Data Bus
PORTB
BLOCK DIAGRAM OF RB3:RB0 PINS
or
Data Latch
TRIS Latch
D
D
CK
CK
RD LATC
RD TRISB
Q
Q
Q
Q
PIC18F2331/2431/4331/4431
Preliminary
0
1
Q
EN
D
V
V
P
N
SS
DD
TTL
Input
Buffer
V
P
DD
Weak
Pull-up
DS39616B-page 113
RB<3:0>
Pins