PIC18F4431-I/PT Microchip Technology Inc., PIC18F4431-I/PT Datasheet - Page 267
PIC18F4431-I/PT
Manufacturer Part Number
PIC18F4431-I/PT
Description
Microcontroller; 16 KB Flash; 768 RAM; 256 EEPROM; 36 I/O; 44-Pin TQFP
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC18F4431-IPT.pdf
(396 pages)
Specifications of PIC18F4431-I/PT
A/d Inputs
9-Channel, 10-Bit
Cpu Speed
10 MIPS
Eeprom Memory
256 Bytes
Input Output
36
Interface
I2C/SPI/USART
Memory Type
Flash
Number Of Bits
8
Package Type
44-pin TQFP
Programmable Memory
16K Bytes
Ram Size
768 Bytes
Speed
40 MHz
Timers
1-8-bit, 3-16-bit
Voltage, Range
2-5.5 V
Lead Free Status / Rohs Status
RoHS Compliant part
Electrostatic Device
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21.2.1
The internal reference voltage of the LVD module may
be used by other internal circuitry (the Programmable
Brown-out Reset). If these circuits are disabled (lower
current consumption), the reference voltage circuit
requires a time to become stable before a low-voltage
condition can be reliably detected. This time is invariant
of system clock speed. This start-up time is specified in
electrical specification parameter 36. The low-voltage
interrupt flag will not be enabled until a stable reference
voltage is reached. Refer to the waveform in Figure 21-4.
21.2.2
When the module is enabled, the LVD comparator and
voltage divider are enabled and will consume static
current. The voltage divider can be tapped from
multiple places in the resistor array. Total current
consumption, when enabled, is specified in electrical
specification parameter #D022B.
2003 Microchip Technology Inc.
REFERENCE VOLTAGE SET POINT
CURRENT CONSUMPTION
PIC18F2331/2431/4331/4431
Preliminary
21.3
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.
21.4
A device Reset forces all registers to their Reset state.
This forces the LVD module to be turned off.
Operation During Sleep
Effects of a Reset
DS39616B-page 265
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