PIC18F6621-I/PT Microchip Technology, PIC18F6621-I/PT Datasheet - Page 3

• Manufacturer Part Number: PIC18F6621-I/PT
• Description: IC PIC MCU FLASH 32KX16 64TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F6621-I/PT

• Core Size: 8-Bit
• Program Memory Size: 64KB (32K x 16)
• Core Processor: PIC
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 53
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 3.75K x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TFQFP
• Controller Family/series: PIC18
• No. Of I/o's: 53
• Eeprom Memory Size: 1024Byte
• Ram Memory Size: 3.75KB
• Cpu Speed: 40MHz
• No. Of Timers: 5
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 3840 B
• Interface Type: MSSP, SPI, I2C, EUSART
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 53
• Number Of Timers: 5
• Maximum Operating Temperature: + 85 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, PG164120, ICE2000, ICE4000, DV164136, DM183032
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 12 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT64PT5 - SOCKET TRAN ICE 64MQFP/TQFPAC164319 - MODULE SKT MPLAB PM3 64TQFPDV007003 - PROGRAMMER UNIVERSAL PROMATE II
• Lead Free Status / Rohs Status: Details

12. Module: Core
© 2006 Microchip Technology Inc.
Certain combinations of code sequence, code
placement, V
cause a corrupted read of fetched instructions or
data. A corrupted instruction fetch will cause the
part to execute an incorrect instruction with
unpredictable results.
Microchip cannot predict which combinations of
these conditions will cause this failure.
If this failure mechanism exists in your system, it
should become evident during statistically signifi-
cant preproduction testing, using your particular
code sequence and placement, across multiple
date codes.
Preproduction testing should exercise all the func-
tions of your application across system variables.
Any changes to code should be tested in the same
manner prior to being implemented.
Work around
• Migrate to an equivalent part in the
• If migrating to the PIC18F8622 product family is
In each of these instances, the literal data behaves
as a NOP instruction when it is executed. Using the
actual NOP instruction instead of a literal FFFFh
may not have the same results.
After making any of the changes described above,
it is necessary that you do statistically significant
preproduction testing, using your new code
sequence and placement, across multiple date
codes.
functions of your application across system
variables.
• Contact your nearest Microchip sales office for
Preproduction testing should exercise all the
PIC18F8622 product family
not feasible, try changing the placement of
code within program memory. Examples of
code placement changes include:
additional help.
• Insert a data word of value FFFFh
• Insert a data word of value FFFFh as the
• Insert a data word of FFFFh at the interrupt
• Insert a data word of value FFFFh immedi-
immediately following any table read
instruction
first instruction in the destination of a CALL
or GOTO
vector address(es) (0008h and/or 0018h)
ately following any RETURN, RETLW, or
RETFIE instruction
DD
, F
OSC
and temperature may
PIC18F6525/6621/8525/8621
DS80163D-page 3