PIC18F4685-E/PT Microchip Technology, PIC18F4685-E/PT Datasheet - Page 361
![96KB, Flash, 3328bytes-RAM, 36I/O, 8-bit Family,nanoWatt,ECAN 44 TQFP 10x10x1mm](/photos/6/82/68251/c04-076_pt_sml.jpg)
PIC18F4685-E/PT
Manufacturer Part Number
PIC18F4685-E/PT
Description
96KB, Flash, 3328bytes-RAM, 36I/O, 8-bit Family,nanoWatt,ECAN 44 TQFP 10x10x1mm
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PCM18XT0.pdf
(484 pages)
2.PIC18F2221-ISO.pdf
(46 pages)
3.PIC18F2682-ISP.pdf
(6 pages)
4.PIC18F2682-ISP.pdf
(4 pages)
Specifications of PIC18F4685-E/PT
Core Processor
PIC
Core Size
8-Bit
Speed
40MHz
Connectivity
CAN, I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, HLVD, POR, PWM, WDT
Number Of I /o
36
Program Memory Size
96KB (48K x 16)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
3.25K x 8
Voltage - Supply (vcc/vdd)
4.2 V ~ 5.5 V
Data Converters
A/D 11x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
44-TQFP, 44-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
I3-DB18F4680 - BOARD DAUGHTER ICEPIC3
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F4685-E/PT
Manufacturer:
MICROCHIP
Quantity:
2 000
Company:
Part Number:
PIC18F4685-E/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
Part Number:
PIC18F4685-E/PT
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
- PCM18XT0 PDF datasheet
- PIC18F2221-ISO PDF datasheet #2
- PIC18F2682-ISP PDF datasheet #3
- PIC18F2682-ISP PDF datasheet #4
- Current page: 361 of 484
- Download datasheet (9Mb)
TABLE 24-3:
24.5.1
The program memory may be read to or written from
any location using the table read and table write
instructions. 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.
© 2009 Microchip Technology Inc.
300008h
300009h
30000Ah
30000Bh
30000Ch
30000Dh
Legend: Shaded cells are unimplemented.
Note 1:
File Name
Unimplemented in PIC18F2682/4682 devices; maintain this bit set.
PROGRAM MEMORY
CODE PROTECTION
CONFIG5L
CONFIG5H
CONFIG6L
CONFIG6H
CONFIG7L
CONFIG7H
SUMMARY OF CODE PROTECTION REGISTERS
WRTD
Bit 7
CPD
—
—
—
—
EBTRB
WRTB
Bit 6
CPB
—
—
—
PIC18F2682/2685/4682/4685
EBTR5
WRT5
WRTC
CP5
Bit 5
—
—
(1)
(1)
(1)
EBTR4
WRT4
A table read instruction that executes from a location
outside of that block is not allowed to read and will
result in reading ‘0’s. Figures 24-6 through 24-8
illustrate table write and table read protection.
Bit 4
CP4
—
—
—
Note:
EBTR3
WRT3
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
protection 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.
Bit 3
CP3
—
—
—
EBTR2
WRT2
Bit 2
CP2
—
—
—
EBTR1
WRT1
Bit 1
CP1
DS39761C-page 361
—
—
—
EBTR0
WRT0
Bit 0
CP0
—
—
—
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