PIC18F2221-E/ML Microchip Technology, PIC18F2221-E/ML Datasheet - Page 257

• Manufacturer Part Number: PIC18F2221-E/ML
• Description: 4KB, Flash, 512bytes-RAM, 25I/O, 8-bit Family,nanoWatt 28 QFN 6x6mm TUBE
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F2221-E/ML

• 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: 25
• 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): 4.2 V ~ 5.5 V
• Data Converters: A/D 10x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

23.6
When enabled, the HLVD circuitry continues to operate
during Sleep. If the device voltage crosses the trip
point, the HLVDIF bit will be set and the device will
wake-up from Sleep. Device execution will continue
from the interrupt vector address if interrupts have
been globally enabled.
TABLE 23-1:
© 2009 Microchip Technology Inc.
HLVDCON
INTCON
PIR2
PIE2
IPR2
Legend: — = unimplemented, read as ‘0’. Shaded cells are unused by the HLVD module.
Name
Operation During Sleep
VDIRMAG
GIE/GIEH PEIE/GIEL TMR0IE
OSCFIF
OSCFIE
OSCFIP
Bit 7
REGISTERS ASSOCIATED WITH HIGH/LOW-VOLTAGE DETECT MODULE
PIC18F2221/2321/4221/4321 FAMILY
CMIE
CMIP
CMIF
Bit 6
—
IRVST
Bit 5
—
—
—
HLVDEN
INT0IE
EEIE
EEIP
Bit 4
EEIF
HLVDL3
23.7
A device Reset forces all registers to their Reset state.
This forces the HLVD module to be turned off.
BCLIF
BCLIE
BCLIP
RBIE
Bit 3
Effects of a Reset
HLVDL2
TMR0IF
HLVDIE
HLVDIP
HLVDIF
Bit 2
HLVDL1
TMR3IF
TMR3IE
TMR3IP
INT0IF
Bit 1
HLVDL0
CCP2IF
CCP2IE
CCP2IP
RBIF
DS39689F-page 257
Bit 0
on Page
Values
Reset
56
55
58
58
58