PIC18F2331-E/MM Microchip Technology, PIC18F2331-E/MM Datasheet - Page 261

• Manufacturer Part Number: PIC18F2331-E/MM
• Description: IC MCU FLASH 4KX16 28QFN
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F2331-E/MM

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, Power Control PWM, QEI, POR, PWM, WDT
• Number Of I /o: 24
• Program Memory Size: 8KB (4K 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 5x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 28-QFN
• Core: PIC
• Processor Series: PIC18F
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 40 MHz
• Data Ram Size: 768 B
• Data Rom Size: 256 B
• On-chip Adc: Yes
• Number Of Programmable I/os: 24
• Number Of Timers: 4
• Operating Supply Voltage: 2 V to 5.5 V
• Mounting Style: SMD/SMT
• A/d Bit Size: 10 bit
• A/d Channels Available: 5
• Height: 0.88 mm
• Interface Type: EUSART, I2C, SPI, SSP
• Length: 6 mm
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Supply Voltage (max): 5.5 V, 5.8 V
• Supply Voltage (min): 3.9 V, 4.2 V
• Width: 6 mm
• For Use With: I3-DB18F4431 - BOARD DAUGHTER ICEPIC3
• Lead Free Status / RoHS Status: Request inventory verification / Request inventory verification
• Other names: PIC18F2331-E/ML; PIC18F2331-E/ML

22.5
When enabled, the LVD circuitry continues to operate
during Sleep. If the device voltage crosses the trip
point, the LVDIF 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.
22.6
A device Reset forces all registers to their Reset state.
This forces the LVD module to be turned off.
FIGURE 22-3:
TABLE 22-1:
 2010 Microchip Technology Inc.
LVDCON
INTCON
IPR2
PIR2
PIE2
Legend: — = unimplemented, read as ‘0’. Shaded cells are unused by the LVD module.
Name
Operation During Sleep
Effects of a Reset
GIE/GIEH
V
V
OSCFIP
OSCFIF
OSCFIE
A
B
Bit 7
—
REGISTERS ASSOCIATED WITH LOW-VOLTAGE DETECT MODULE
TYPICAL LOW-VOLTAGE DETECT APPLICATION
PEIE/GIEL
Bit 6
—
—
—
—
Time
TMR0IE
IRVST
T
Bit 5
A
—
—
—
PIC18F2331/2431/4331/4431
T
B
LVDEN
INT0IE
EEIP
EEIE
Bit 4
EEIF
22.7
Figure 22-3
(typically for batteries). Over time, the device voltage
decreases. When the device voltage equals voltage,
V
time, T
until the device voltage is no longer in valid operating
range, to perform “housekeeping tasks” and to shut
down the system. Voltage point, V
valid operating voltage specification. This occurs at
time, T
shutdown.
A
LVDL3
, the LVD logic generates an interrupt. This occurs at
RBIE
Bit 3
—
—
—
A
B
Legend:
. The application software then has the time,
. The difference, T
Applications
shows a possible application voltage curve
TMR0IF
LVDL2
LVDIP
LVDIF
LVDIE
Bit 2
V
V
A
B
= LVD trip point
= Minimum valid device
operating voltage
B
LVDL1
INT0IF
– T
Bit 1
—
—
—
A
, is the total time for
DS39616D-page 261
B
, is the minimum
CCP2IP
CCP2IE
CCP2IF
LVDL0
RBIF
Bit 0