PIC18F4431-E/ML Microchip Technology, PIC18F4431-E/ML Datasheet - Page 5

IC MCU FLASH 8KX16 44QFN

PIC18F4431-E/ML

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
2.3
The code memory space extends from 0000h to 3FFFh
(16 Kbytes) in four 4-Kbyte blocks. Addresses 0000h
through 01FFh, however, define a “Boot Block” region
that is treated separately from Block 0. All of these
blocks define code protection boundaries within the
code memory space.
In contrast, code memory panels are defined in 8-Kbyte
boundaries. Panels are discussed in greater detail in
Section 3.2.
FIGURE 2-4:
 2010 Microchip Technology Inc.
000000h
003FFFh
1FFFFFh
3FFFFFh
Note:
Memory Map
Sizes of memory areas not to scale.
Unimplemented
Code Memory
Configuration
Read as ‘0’
and ID
Space
MEMORY MAP AND THE CODE MEMORY SPACE FOR PIC18FXX31 DEVICES
Unimplemented
(PIC18FX331)
Read as ‘0’
Boot Block
8 Kbytes
Block 0
Block 1
PIC18F2331/2431/4331/4431
Address
0000h
0FFFh
0200h
0FFFh
1000h
1FFFh
3FFFh
Range
TABLE 2-2:
MEMORY SIZE/DEVICE
PIC18F2331
PIC18F4331
PIC18F2431
PIC18F4431
(PIC18FX431)
16 Kbytes
Boot Block
Device
Block 0
Block 1
Block 2
Block 3
IMPLEMENTATION OF CODE
MEMORY
0000h
01FFh
0200h
0FFFh
1000h
1FFFh
2000h
2FFFh
3000h
3FFFh
Address
Range
Code Memory Size (Bytes)
000000h - 003FFFh (16K)
000000h - 001FFFh (8K)
CPB, WRTB, EBTRB
CP0, WRT0, EBTR0
CP1, WRT1, EBTR1
CP2, WRT2, EBTR2
CP3, WRT3, EBTR3
Controlled By:
Block Code
Protection
DS30500B-page 5

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