PIC18F6621-I/PT Microchip Technology Inc., PIC18F6621-I/PT Datasheet - Page 42

• Manufacturer Part Number: PIC18F6621-I/PT
• Description: 64 PIN, 64 KB FLASH, 3840 RAM, 52 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC18F6621-I/PT

• A/d Inputs: 12-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 10 MIPS
• Eeprom Memory: 1024 Bytes
• Input Output: 54
• Interface: I2C/SPI/UART/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 64-pin TQFP
• Programmable Memory: 64K Bytes
• Ram Size: 3.8K Bytes
• Speed: 40 MHz
• Timers: 2-8-bit, 3-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

PIC18F6525/6621/8525/8621
FIGURE 4-1:
TABLE 4-1:
DS39612B-page 40
Operating Mode
Microprocessor
Microprocessor
w/Boot Block
Microcontroller
Extended
Microcontroller
CALL,RCALL,RETURN
RETFIE,RETLW
High Priority Interrupt Vector 000008h
Low Priority Interrupt Vector
Program Memory
Stack Level 31
On-Chip Flash
Stack Level 1
Reset Vector
MEMORY ACCESS FOR PIC18F8525/8621 PROGRAM MEMORY MODES
PC<20:0>
Read ‘0’
Execution
No Access
•
•
•
INTERNAL PROGRAM
MEMORY MAP AND
STACK FOR PIC18FX525
From
Yes
Yes
Yes
21
Internal Program Memory
Table Read
000000h
000018h
00BFFFh
00C000h
1FFFFFh
200000h
No Access
From
Yes
Yes
Yes
Table Write To
No Access
Yes
Yes
Yes
FIGURE 4-2:
CALL,RCALL,RETURN
RETFIE,RETLW
Execution
No Access
From
High Priority Interrupt Vector 000008h
Low Priority Interrupt Vector
Yes
Yes
Yes
Program Memory
Stack Level 31
On-Chip Flash
External Program Memory
Stack Level 1
Reset Vector
PC<20:0>
Read ‘0’
INTERNAL PROGRAM
MEMORY MAP AND
STACK FOR PIC18FX621
•
•
•
Table Read
 2005 Microchip Technology Inc.
No Access
From
Yes
Yes
Yes
21
000000h
000018h
00FFFFh
010000h
1FFFFFh
200000h
Table Write To
No Access
Yes
Yes
Yes