PIC18F4420T-I/PT Microchip Technology, PIC18F4420T-I/PT Datasheet - Page 49

• Manufacturer Part Number: PIC18F4420T-I/PT
• Description: IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,TQFP,44PIN,PLASTIC
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F4420T-I/PT

• Rohs Compliant: YES
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, HLVD, POR, PWM, WDT
• Number Of I /o: 36
• Program Memory Size: 16KB (8K x 16)
• 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 13x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

FIGURE 4-6:
FIGURE 4-7:
© 2008 Microchip Technology Inc.
INTERNAL RESET
Note:
PWRT TIME-OUT
INTERNAL POR
OST TIME-OUT
PLL TIME-OUT
INTERNAL RESET
PWRT TIME-OUT
INTERNAL POR
OST TIME-OUT
T
T
OST
PLL
MCLR
≈ 2 ms max. First three stages of the PWRT timer.
= 1024 clock cycles.
V
DD
MCLR
V
SLOW RISE TIME (MCLR TIED TO V
TIME-OUT SEQUENCE ON POR W/PLL ENABLED (MCLR TIED TO V
DD
PIC18F2420/2520/4420/4520
0V
T
PWRT
T
PWRT
DD
, V
T
OST
5V
DD
RISE > T
T
T
OST
PLL
PWRT
)
DS39631E-page 47
DD
)