PIC18F8621-E/PT Microchip Technology, PIC18F8621-E/PT Datasheet - Page 78
![no-image](/images/manufacturer_photos/0/4/439/microchip_technology_sml.jpg)
PIC18F8621-E/PT
Manufacturer Part Number
PIC18F8621-E/PT
Description
IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,TQFP,80PIN,PLASTIC
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC18F6525-IPT.pdf
(396 pages)
3.PIC18F6525-IPT.pdf
(8 pages)
4.PIC18F6525-IPT.pdf
(38 pages)
Specifications of PIC18F8621-E/PT
Rohs Compliant
YES
Core Processor
PIC
Core Size
8-Bit
Speed
25MHz
Connectivity
EBI/EMI, I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LVD, POR, PWM, WDT
Number Of I /o
69
Program Memory Size
64KB (32K x 16)
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 16x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 125°C
Package / Case
80-TFQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
XLT80PT3 - SOCKET TRAN ICE 80MQFP/TQFPAC164320 - MODULE SKT MPLAB PM3 80TQFPAC174011 - MODULE SKT PROMATEII 80TQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F8621-E/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
- PIC16F616T-ISL PDF datasheet
- PIC18F6525-IPT PDF datasheet #2
- PIC18F6525-IPT PDF datasheet #3
- PIC18F6525-IPT PDF datasheet #4
- Current page: 78 of 396
- Download datasheet (8Mb)
PIC18F6525/6621/8525/8621
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:
DS39612B-page 76
AD<15:0>
A<19:16>
Instruction
Execution
AD<15:0>
A<19:16>
Memory
Cycle
Instruction
Execution
ALE
Memory
CE
OE
WRH
Apparent Q
WRL
Cycle
16-BIT MODE TIMING
BA0
ALE
OE
CE
Actual Q
‘1’
‘0’
‘1’
Q1
EXTERNAL MEMORY BUS TIMING FOR TBLRD
EXTERNAL MEMORY BUS TIMING FOR TBLRD (MICROPROCESSOR MODE)
(EXTENDED MICROCONTROLLER MODE)
Opcode Fetch
INST(PC – 2)
from 000100h
Q1
Q1
Q2
TBLRD*
3AABh
TBLRD Cycle 1
Opcode Fetch
from 007556h
Q2
Q2
Q3
MOVLW 55h
00h
Q4
Q3
Q3
0E55h
Q1
Q4
Q4
TBLRD Cycle 1
Opcode Fetch
from 000102h
MOVLW 55h
Q2
Q1
Q1
Q3
CF33h
Q2
Q2
Q4
Q3
Q3
Q1
TBLRD Cycle 2
from 199E67h
CF33h
Table Read
from 199E67h
TBLRD Cycle 2
TBLRD 92h
of 92h
Q2
Q4
Q4
0Ch
0Ch
Q3
Q4
Q1
9256h
9256h
Q4
Q4
Q2
1 T
2005 Microchip Technology Inc.
Q1
CY
Wait
Opcode Fetch
from 000104h
Q4
Q3
ADDLW 55h
Q2
MOVLW
Q4
Q4
Q3
‘1’
‘1’
‘0’
Q4
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