PIC18F8390-I/PT Microchip Technology, PIC18F8390-I/PT Datasheet - Page 11

• Manufacturer Part Number: PIC18F8390-I/PT
• Description: IC PIC MCU FLASH 4KX16 80TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F8390-I/PT

• Program Memory Type: FLASH
• Program Memory Size: 8KB (4K x 16)
• Package / Case: 80-TFQFP
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, HLVD, LCD, POR, PWM, WDT
• Number Of I /o: 66
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 768 B
• Interface Type: SPI, I2C, EUSART, AUSART
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 66
• Number Of Timers: 4
• Operating Supply Voltage: 4.2 V to 5.5 V
• 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, DM163028
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT80PT3 - SOCKET TRAN ICE 80MQFP/TQFPDM163028 - BOARD DEMO PICDEM LCDAC164320 - MODULE SKT MPLAB PM3 80TQFPAC174011 - MODULE SKT PROMATEII 80TQFP
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

3.0
3.1
The term “Blank Check” means to verify that the device
has no programmed memory cells. All memories must
be
configuration
(3FFFFEh:3FFFFFh) should be ignored. The blank
checking step involves reading the code memory
space and comparing it against FFFFh. Memory reads
occur a single byte at a time, so two bytes must be read
to compare against FFFFh. Refer to Section 4.1
“Read
Configuration Bits”.
FIGURE 3-1:
© 2007 Microchip Technology Inc.
verified:
Note 1: The erased state of configuration bits are given in Table 5-2.
DEVICE PROGRAMMING
Blank Check
Code
No
code
bits.
Pointer to 000000h
Memory,
Read High Byte
Word = FFFFh?
Read Low Byte
Code Memory
Load Address
Verified?
BLANK CHECK FLOW
memory,
The
Does
Start
All
Yes
Yes
Device
ID
ID
Locations
PIC18F8410/8490/8493 FAMILY
No
locations
ID
Device not
Report,
registers
Blank
and
and
A “Blank” or “Erased” memory cell will read as a ‘1’. So,
“Blank Checking” a device merely means to verify that
all bytes read as FFh, except the configuration bits.
Unused (reserved) configuration bits will read as ‘0’.
Refer to Table 5-3 for blank configuration except data
for the various PIC18F8410/8490/8493 family devices.
If it is determined that the device is not blank, then the
device
“High-Voltage ICSP Chip Erase”) before any attempt
to program is made.
No
No
should
Pointer to 200000h
Pointer to 300000h
Configuration bits
Word = FFFFh?
Read High Byte
Read High Byte
Read Low Byte
Read Low Byte
Word = Erased
Load Address
Load Address
ID Locations
Verified?
Verified?
State
Does
Does
All
All
Yes
Yes
Yes
Yes
be
(1)
?
Erased
No
No
Device is
Report
Blank
Device not
Device not
(see
DS39624C-page 11
Report,
Report,
Blank
Blank
Section 3.2