PIC18F4431-E/ML Microchip Technology, PIC18F4431-E/ML Datasheet - Page 26

• Manufacturer Part Number: PIC18F4431-E/ML
• Description: IC MCU FLASH 8KX16 44QFN
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F4431-E/ML

• 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: 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 9x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 44-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIC18F2331/2431/4331/4431
5.0
The PIC18FXX31 devices have several configuration
words. These bits can be set or cleared to select vari-
ous device configurations. All other memory areas
should be programmed and verified prior to setting con-
figuration words. These bits may be read out normally
even after read or code protection.
5.1
A user may store identification information (ID) in eight
ID locations mapped in 200000h:200007h. It is recom-
mended that the Most Significant nibble of each ID be
0Fh. In doing so, if the user code inadvertently tries to
execute from the ID space, the ID data will execute as
NOP.
5.2
The device ID word for the PIC18FXX31 is located at
3FFFFEh:3FFFFFh. These bits may be used by the
programmer to identify what device type is being
programmed and read out normally even after code or
read protection.
TABLE 5-1:
DS30500B-page 26
Note:
CONFIGURATION WORD
ID Locations
Device ID Word
The ‘x’s in DEVID1 contain the device revision code.
PIC18F2331
PIC18F2431
PIC18F4331
PIC18F4431
Device
DEVICE ID VALUES
DEVID2
08h
08h
08h
08h
5.3
The LVP bit in Configuration register, CONFIG4L,
enables low voltage ICSP programming. The LVP bit
defaults to a ‘1’ from the factory.
If Low Voltage Programming mode is not used, the LVP
bit can be programmed to a ‘0’ and RB5/PGM becomes
a digital I/O pin. However, the LVP bit may only be pro-
grammed by entering the High Voltage ICSP mode,
where MCLR/V
programmed to a ‘0’, only the High Voltage ICSP mode
is available and only the High Voltage ICSP mode can
be used to program the device.
Note 1: The normal ICSP mode is always avail-
Device ID Value
2: While in Low Voltage ICSP mode, the
Low Voltage Programming (LVP)
Bit
able, regardless of the state of the LVP
bit, by applying V
pin.
RB5 pin can no longer be used as a
general purpose I/O.
PP
is raised to V
 2010 Microchip Technology Inc.
DEVID1
IHH
IHH
E0h
C0h
A0h
80h
. Once the LVP bit is
to the MCLR/V
PP