PIC18F8520-I/PT Microchip Technology Inc., PIC18F8520-I/PT Datasheet - Page 78
PIC18F8520-I/PT
Manufacturer Part Number
PIC18F8520-I/PT
Description
80 PIN, 32 KB FLASH, 2048 RAM, 68 I/O
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC18F8520-IPT.pdf
(380 pages)
Specifications of PIC18F8520-I/PT
A/d Inputs
16-Channel, 10-Bit
Comparators
2
Cpu Speed
10 MIPS
Eeprom Memory
1024 Bytes
Input Output
68
Interface
I2C/SPI/UART/USART
Memory Type
Flash
Number Of Bits
8
Package Type
80-pin TQFP
Programmable Memory
32K Bytes
Ram Size
2K 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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F8520-I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
Part Number:
PIC18F8520-I/PT
Manufacturer:
MICRCOHI
Quantity:
20 000
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PIC18F6520/8520/6620/8620/6720/8720
6.2.4
The presentation of control signals on the external
memory bus is different for the various operating
modes. Typical signal timing diagrams are shown in
Figure 6-4 through Figure 6-6.
FIGURE 6-4:
FIGURE 6-5:
DS39609B-page 76
AD<15:0>
A<19:16>
Instruction
Execution
Memory
AD<15:0>
A<19:16>
Cycle
ALE
OE
CE
Instruction
Execution
Memory
16-BIT MODE TIMING
WRH
Apparent Q
WRL
Cycle
BA0
ALE
OE
CE
Actual Q
Q1
‘0’
‘1’
‘1’
EXTERNAL MEMORY BUS TIMING FOR
EXTERNAL MEMORY BUS TIMING FOR
MICROCONTROLLER MODE)
Opcode Fetch
from 000100h
INST(PC-2)
Q2
TBLRD *
Q1
Q1
3AABh
TBLRD Cycle 1
Q3
Opcode Fetch
from 007556h
Q2
Q2
MOVLW 55h
00h
Q4
Q3
Q3
0E55h
Q1
TBLRD Cycle 1
Opcode Fetch
Q4
Q4
from 000102h
MOVLW 55h
Q2
Q1
Q1
Q3
CF33h
Q4
Q2
Q2
Q1
Q3
Q3
CF33h
from 199E67h
TBLRD Cycle 2
from 199E67h
TBLRD Cycle 2
Table Read
TBLRD
TBLRD
TBLRD 92h
Q2
of 92h
Q4
Q4
0Ch
Q3
0Ch
(MICROPROCESSOR MODE)
(EXTENDED
9256h
Q4
Q1
Q4
9256h
2004 Microchip Technology Inc.
Q4
Q2
1 T
Q1
CY
Opcode Fetch
from 000104h
Wait
ADDLW 55h
Q4
Q3
Q2
MOVLW
Q3
Q4
Q4
Q4
‘1’
‘1’
‘0’
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