PIC18F4431-E/PT Microchip Technology, PIC18F4431-E/PT Datasheet - Page 118

• Manufacturer Part Number: PIC18F4431-E/PT
• Description: IC MCU FLASH 8KX16 44TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F4431-E/PT

• Core Size: 8-Bit
• Program Memory Size: 16KB (8K x 16)
• Oscillator Type: Internal
• 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: 36
• 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 9x10b
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 44-TQFP, 44-VQFP
• Controller Family/series: PIC18
• No. Of I/o's: 36
• Eeprom Memory Size: 256Byte
• Ram Memory Size: 768Byte
• Cpu Speed: 40MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIC18F2331/2431/4331/4431
FIGURE 10-12:
DS39616B-page 116
PGC
Enable Debug
From other
RB7:RB4 pins
WR TRISB
Note 1: To enable weak pull-ups, set the appropriate TRIS bit(s) and clear the RBPU bit (INTCON2<7>).
Set RBIF
WR LATB
(2)
Data Bus
PORTB
/PGD
or ICSP
2: PGC is available on RB6.
3: PGD is available on RB7.
RBPU
or
(3)
(1)
RD PORTB
BLOCK DIAGRAM OF RB7:RB6 PINS
TRIS Latch
D
Data Latch
D
RD LATB
RD TRISC
CK
CK
Enable Debug or ICSP
Q
Q
Q
Q
Q
EN
D
Preliminary
RD PORTB
Q
Enable
Debug
0
1
BRBx
EN
Q3
D
0
BTRISx
Q1
1
TTL
Input
Buffer
Enable
Debug
P
Weak
Pull-up
Schmitt
Trigger
 2003 Microchip Technology Inc.
RB7/RB6
Pin