PIC18F2431T-I/MM Microchip Technology, PIC18F2431T-I/MM Datasheet - Page 22
![16 KB Flash, 768 RAM, 22 I/O 28 QFN-S 6x6m T/R](/photos/6/81/68120/150-28-qfn_sml.jpg)
PIC18F2431T-I/MM
Manufacturer Part Number
PIC18F2431T-I/MM
Description
16 KB Flash, 768 RAM, 22 I/O 28 QFN-S 6x6m T/R
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F818-ISO.pdf
(6 pages)
3.PIC18F2331-ISO.pdf
(392 pages)
4.PIC18F2331-ISO.pdf
(8 pages)
5.PIC18F2331-ISO.pdf
(6 pages)
6.PIC18F2331-ISO.pdf
(16 pages)
7.PIC18LF2331-ISO.pdf
(40 pages)
Specifications of PIC18F2431T-I/MM
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
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 5x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
28-QFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
I3-DB18F4431 - BOARD DAUGHTER ICEPIC3
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
PIC18F2431T-I/MM
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
PIC18F2331/2431/4331/4431
4.2
The verify step involves reading back the code memory
space and comparing against the copy held in the pro-
grammer’s buffer. Memory reads occur a single byte at
a time, so two bytes must be read to compare against
the word in the programmer’s buffer. Refer to
Section 4.1 for implementation details of reading code
memory.
FIGURE 4-2:
DS30500B-page 22
Verify Code Memory and ID
Locations
No
Read High byte
Set Pointer = 0
Read Low Byte
Word = Expect
Code Memory
VERIFY CODE MEMORY FLOW
Verified?
Data?
Does
Start
All
Yes
Yes
No
Failure,
Report
Error
The table pointer must be manually set to 200000h
(base address of the ID locations) once the code mem-
ory has been verified. The post-increment feature of
the table read 4-bit command may not be used to incre-
ment the table pointer beyond the code memory space.
In a 16-Kbyte device, for example, a post-increment
read of address 3FFFh will wrap the table pointer back
to 0000h, rather than point to unimplemented address
4000h.
No
Set Pointer = 200000h
Read High byte
Read Low Byte
Word = Expect
ID Locations
Verified?
Data?
Does
Done
All
Yes
Yes
2010 Microchip Technology Inc.
No
Failure,
Report
Error