PIC18LF4221-I/PT Microchip Technology, PIC18LF4221-I/PT Datasheet - Page 52

• Manufacturer Part Number: PIC18LF4221-I/PT
• Description: 4 KB Flash, 512 RAM 44 TQFP 10x10x1mm TRAY
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18LF4221-I/PT

• 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: 4KB (2K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 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

PIC18F2221/2321/4221/4321 FAMILY
FIGURE 5-3:
FIGURE 5-4:
FIGURE 5-5:
DS39689F-page 52
INTERNAL RESET
INTERNAL RESET
INTERNAL RESET
PWRT TIME-OUT
PWRT TIME-OUT
PWRT TIME-OUT
INTERNAL POR
INTERNAL POR
OST TIME-OUT
OST TIME-OUT
OST TIME-OUT
INTERNAL POR
MCLR
MCLR
MCLR
V
V
V
DD
DD
DD
TIME-OUT SEQUENCE ON POWER-UP (MCLR TIED TO V
TIME-OUT SEQUENCE ON POWER-UP (MCLR NOT TIED TO V
TIME-OUT SEQUENCE ON POWER-UP (MCLR NOT TIED TO V
T
PWRT
T
T
PWRT
PWRT
T
OST
T
T
OST
OST
© 2009 Microchip Technology Inc.
DD
, V
DD
DD
DD
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): CASE 2
PWRT
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