PIC18F23K20-I/MV Microchip Technology, PIC18F23K20-I/MV Datasheet - Page 65
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PIC18F23K20-I/MV
Manufacturer Part Number
PIC18F23K20-I/MV
Description
IC MCU 8BIT 8KB FLASH 28UQFN
Manufacturer
Microchip Technology
Series
PIC® XLP™ 18Fr
Specifications of PIC18F23K20-I/MV
Program Memory Type
FLASH
Program Memory Size
8KB (4K x 16)
Package / Case
28-UFQFN Exposed Pad
Core Processor
PIC
Core Size
8-Bit
Speed
64MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, HLVD, POR, PWM, WDT
Number Of I /o
24
Eeprom Size
256 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Data Converters
A/D 11x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
PIC18F
Core
PIC
Data Bus Width
16 bit
Data Ram Size
768 B
Interface Type
MSSP, I2C, SPI, USART
Maximum Clock Frequency
64 MHz
Number Of Programmable I/os
25
Number Of Timers
4
Operating Supply Voltage
1.8 V to 3.6 V
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
3rd Party Development Tools
52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 10 Channel
A/d Bit Size
10 bit
A/d Channels Available
10
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
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5.0
There are three types of memory in PIC18 Enhanced
microcontroller devices:
• Program Memory
• Data RAM
• Data EEPROM
As Harvard architecture devices, the data and program
memories use separate busses; this allows for concur-
rent access of the two memory spaces. The data
EEPROM, for practical purposes, can be regarded as
a peripheral device, since it is addressed and accessed
through a set of control registers.
Additional detailed information on the operation of the
Flash program memory is provided in Section 6.0
“Flash Program Memory”. Data EEPROM is
discussed separately in Section 7.0 “Data EEPROM
Memory”.
FIGURE 5-1:
2010 Microchip Technology Inc.
MEMORY ORGANIZATION
Program Memory
PIC18F23K20/
43K20
CALL,RCALL,RETURN
RETFIE,RETLW
Read ‘0’
On-Chip
PROGRAM MEMORY MAP AND STACK FOR PIC18F2XK20/4XK20 DEVICES
1FFFh
2000h
Program Memory
PIC18F24K20/
44K20
Read ‘0’
On-Chip
High Priority Interrupt Vector
Low Priority Interrupt Vector
3FFFh
4000h
Stack Level 31
Stack Level 1
Reset Vector
PC<20:0>
Program Memory
PIC18F25K20/
45K20
On-Chip
Read ‘0’
5.1
PIC18 microcontrollers implement a 21-bit program
counter, which is capable of addressing a 2-Mbyte
program memory space. Accessing a location between
the upper boundary of the physically implemented
memory and the 2-Mbyte address will return all ‘0’s (a
NOP instruction).
This family of devices contain the following:
• PIC18F23K20, PIC18F43K20: 8 Kbytes of Flash
• PIC18F24K20, PIC18F44K20: 16 Kbytes of Flash
• PIC18F25K20, PIC18F45K20: 32 Kbytes of Flash
• PIC18F26K20, PIC18F46K20: 64 Kbytes of Flash
PIC18 devices have two interrupt vectors. The Reset
vector address is at 0000h and the interrupt vector
addresses are at 0008h and 0018h.
The program memory map for PIC18F2XK20/4XK20
devices is shown in Figure 5-1. Memory block details
are shown in Figure 23-2.
PIC18F2XK20/4XK20
7FFFh
8000h
Memory, up to 4,096 single-word instructions
Memory, up to 8,192 single-word instructions
Memory, up to 16,384 single-word instructions
Memory, up to 37,768 single-word instructions
Program Memory Organization
Program Memory
PIC18F26K20/
46K20
21
On-Chip
Read ‘0’
10000h
FFFFh
0000h
0008h
0018h
1FFFFFh
200000h
DS41303G-page 65
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