PIC18F4523-I/PT Microchip Technology, PIC18F4523-I/PT Datasheet - Page 270
PIC18F4523-I/PT
Manufacturer Part Number
PIC18F4523-I/PT
Description
IC PIC MCU FLASH 16KX16 44TQFP
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC18F2221-ISO.pdf
(46 pages)
2.PIC18F2423-ISP.pdf
(54 pages)
3.PIC18F2423-ISP.pdf
(8 pages)
4.PIC18F2423-ISP.pdf
(34 pages)
5.PIC18F2523-ISO.pdf
(392 pages)
Specifications of PIC18F4523-I/PT
Program Memory Type
FLASH
Program Memory Size
32KB (16K x 16)
Package / Case
44-TQFP, 44-VQFP
Core Processor
PIC
Core Size
8-Bit
Speed
40MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, HLVD, POR, PWM, WDT
Number Of I /o
36
Eeprom Size
256 x 8
Ram Size
1.5K x 8
Voltage - Supply (vcc/vdd)
4.2 V ~ 5.5 V
Data Converters
A/D 13x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
PIC18F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
1.5 KB
Interface Type
EUSART/I2C/MSSP/SPI
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
36
Number Of Timers
4
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
52715-96, 52716-328, 52717-734, 52712-325, 53275-917, EWPIC18
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, ICE4000, DV164136, DM163022
Minimum Operating Temperature
- 40 C
On-chip Adc
13-ch x 12-bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
AC164305 - MODULE SKT FOR PM3 44TQFP444-1001 - DEMO BOARD FOR PICMICRO MCUAC164020 - MODULE SKT PROMATEII 44TQFP
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
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Price
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- PIC18F2221-ISO PDF datasheet
- PIC18F2423-ISP PDF datasheet #2
- PIC18F2423-ISP PDF datasheet #3
- PIC18F2423-ISP PDF datasheet #4
- PIC18F2523-ISO PDF datasheet #5
- Current page: 270 of 392
- Download datasheet (7Mb)
PIC18F2423/2523/4423/4523
23.5.1
Any location in program memory may be read from, or
written to, using the table read and table write instruc-
tions. The device ID may be read with table reads. The
Configuration registers may be read and written with
the table read and table write instructions.
In normal execution mode, the CPn bits have no direct
effect. CPn bits inhibit external reads and writes. A block
of user memory may be protected from table writes if the
WRTn Configuration bit is ‘0’. The EBTRn bits control
table reads. For a block of user memory with the EBTRn
bit set to ‘0’, a table read instruction that executes from
within that block is allowed to read. A table read instruc-
FIGURE 23-6:
DS39755B-page 268
TBLPTR = 0008FFh
Results: All table writes disabled to Blockn whenever WRTn = 0
Register Values
PROGRAM MEMORY
CODE PROTECTION
PC = 001FFEh
PC = 005FFEh
TABLE WRITE (WRTn) DISALLOWED
Program Memory
Preliminary
TBLWT*
TBLWT*
tion that executes from a location outside of that block is
not allowed to read and will result in reading ‘0’s.
Figures 23-6 through 23-8 illustrate table write and table
read protection.
Note:
000000h
0007FFh
000800h
001FFFh
002000h
003FFFh
004000h
005FFFh
006000h
007FFFh
.
Code protection bits may only be written to
a ‘0’ from a ‘1’ state. It is not possible to
write a ‘1’ to a bit in the ‘0’ state. Code pro-
tection bits are only set to ‘1’ by a full chip
erase or block erase function. The full chip
erase and block erase functions can only
be initiated via ICSP or an external
programmer.
Configuration Bit Settings
WRTB, EBTRB = 11
WRT0, EBTR0 = 01
WRT1, EBTR1 = 11
WRT2, EBTR2 = 11
WRT3, EBTR3 = 11
© 2007 Microchip Technology Inc.
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