PIC18F4431-E/PT Microchip Technology, PIC18F4431-E/PT Datasheet - Page 111

• 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

FIGURE 10-5:
 2003 Microchip Technology Inc.
Note 1: Open-drain usually available on RA4 has been removed for this device.
BLOCK DIAGRAM OF RA4
WR TRISA
WR LATA
or
PORTA
Data
Bus
RD TRISA
To CAP3/QEB
Data Latch
RD PORTA
To A/D Converter
D
D
TRIS Latch
CK
CK
RD LATA
PIC18F2331/2431/4331/4431
Q
Q
Q
Q
Preliminary
Q
Analog
Input
Mode
EN
D
V
V
P
N
DD
SS
TTL
Input
Buffer
Schmitt
Trigger
Input
Buffer
RA4
DS39616B-page 109
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