PIC18F4431-E/PT Microchip Technology, PIC18F4431-E/PT Datasheet - Page 282

• 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 22-2:
DS39616B-page 280
CPU Clock
Multiplexer
Note 1:
Peripheral
PLL Clock
Program
INTOSC
Counter
Output
OSC1
Clock
T
Wake from Interrupt Event
OST
= 1024 T
PC
TIMING TRANSITION FOR TWO-SPEED START-UP (INTOSC TO HSPLL)
OSC
Q1
; T
T
PLL
OST (1)
= 2 ms (approx). These intervals are not shown to scale.
Q2
PC + 2
OSTS bit Set
T
Q3
PLL (1)
Preliminary
Q4
Q1
1
2
Clock Transition
3
4
5
PC + 4
6
7
8
Q2
 2003 Microchip Technology Inc.
Q3 Q4
Q1
Q2
PC + 6
Q3 Q4