PIC18F2331-I/SP Microchip Technology, PIC18F2331-I/SP Datasheet - Page 59

• Manufacturer Part Number: PIC18F2331-I/SP
• Description: IC PIC MCU FLASH 4KX16 28DIP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F2331-I/SP

• Program Memory Type: FLASH
• Program Memory Size: 8KB (4K x 16)
• Package / Case: 28-DIP (0.300", 7.62mm)
• 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
• 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 ~ 85°C
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 768 B
• Interface Type: EUSART/I2C/SPI/SSP
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 24
• Number Of Timers: 4
• Operating Supply Voltage: 2 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, ICE4000, ICE2000, DM183021, DV164136
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 5-ch x 10-bit
• Package: 28SPDIP
• Device Core: PIC
• Family Name: PIC18
• Maximum Speed: 40 MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: I3-DB18F4431 - BOARD DAUGHTER ICEPIC3AC164035 - MODULE SKT FOR 18F2X31 28SOICDVA18XP280 - DEVICE ADAPTER 18F2220 PDIP 28LD
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

5.0
There are three memory types in enhanced MCU
devices. These memory types are:
• Program Memory
• Data RAM
• Data EEPROM
Data and program memory use separate busses,
which allows for concurrent access of these types.
Additional detailed information for Flash program mem-
ory and data EEPROM is provided in Section 6.0
“Flash Program Memory” and Section 7.0 “Data
EEPROM Memory”, respectively.
FIGURE 5-1:
 2003 Microchip Technology Inc.
CALL,RCALL,RETURN
RETFIE,RETLW
MEMORY ORGANIZATION
High Priority Interrupt Vector LSb
Low Priority Interrupt Vector LSb
Program Memory
Reset Vector LSb
On-Chip Flash
Stack Level 31
Stack Level 1
PC<20:0>
PROGRAM MEMORY MAP
AND STACK FOR
PIC18F2331/4331
Read ‘0’s
Unused -
21
000018h
1FFFFFh
000000h
000008h
001FFFh
002000h
PIC18F2331/2431/4331/4431
Preliminary
5.1
A 21-bit program counter is capable of addressing the
2-Mbyte program memory space. Accessing a location
between the physically implemented memory and the
2-Mbyte address will cause a read of all ‘0’s (a NOP
instruction).
The PIC18F2331 and PIC18F4331 each have
8 Kbytes of Flash memory and can store up to 4,096
single-word instructions.
The PIC18F2431 and PIC18F4431 each have
16 Kbytes of Flash memory and can store up to 8,192
single-word instructions.
The Reset vector address is at 000000h and the
interrupt vector addresses are at 000008h and
000018h.
The Program Memory Maps for PIC18F2X31 and
PIC18F4X31 devices are shown in Figure 5-1 and
Figure 5-2, respectively.
FIGURE 5-2:
CALL,RCALL,RETURN
RETFIE,RETLW
Program Memory Organization
High Priority Interrupt Vector LSb
Low Priority Interrupt Vector LSb
Reset Vector LSb
Program Memory
Stack Level 31
On-Chip Flash
Stack Level 1
PROGRAM MEMORY MAP
AND STACK FOR
PIC18F2431/4431
PC<20:0>
Unused -
Read ‘0’s
21
DS39616B-page 57
003FFFh
004000h
1FFFFFh
000018h
000000h
000008h