PIC18F1220-E/P Microchip Technology, PIC18F1220-E/P Datasheet - Page 59
PIC18F1220-E/P
Manufacturer Part Number
PIC18F1220-E/P
Description
IC MCU FLASH 2KX16 EEPROM 18DIP
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC18F1220-ISO.pdf
(308 pages)
3.PIC18F1220-ISO.pdf
(8 pages)
4.PIC18F1220-ISO.pdf
(6 pages)
5.PIC18F1220-ISO.pdf
(10 pages)
6.PIC18F1220-ISO.pdf
(4 pages)
7.PIC18F1220-ISO.pdf
(36 pages)
8.PIC18F1220-EP.pdf
(310 pages)
Specifications of PIC18F1220-E/P
Program Memory Type
FLASH
Program Memory Size
4KB (2K x 16)
Package / Case
18-DIP (0.300", 7.62mm)
Core Processor
PIC
Core Size
8-Bit
Speed
40MHz
Connectivity
UART/USART
Peripherals
Brown-out Detect/Reset, LVD, POR, PWM, WDT
Number Of I /o
16
Eeprom Size
256 x 8
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
4.2 V ~ 5.5 V
Data Converters
A/D 7x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Processor Series
PIC18F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
256 B
Interface Type
EUSART
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
16
Number Of Timers
4
Operating Supply Voltage
2 V to 5.5 V
Maximum Operating Temperature
+ 125 C
Mounting Style
Through Hole
3rd Party Development Tools
52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, ICE4000, DM163014, DV164136
Minimum Operating Temperature
- 40 C
On-chip Adc
7-ch x 10-bit
Package
18PDIP
Device Core
PIC
Family Name
PIC18
Maximum Speed
40 MHz
Data Rom Size
256 B
A/d Bit Size
10 bit
A/d Channels Available
7
Height
3.3 mm
Length
22.86 mm
Supply Voltage (max)
5.5 V
Supply Voltage (min)
4.2 V
Width
6.35 mm
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
DVA18XP180 - DEVICE ADAPTER 18F1320 PDIP 18LDACICE0202 - ADAPTER MPLABICE 18P 300 MIL
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
- PIC16F616T-ISL PDF datasheet
- PIC18F1220-ISO PDF datasheet #2
- PIC18F1220-ISO PDF datasheet #3
- PIC18F1220-ISO PDF datasheet #4
- PIC18F1220-ISO PDF datasheet #5
- PIC18F1220-ISO PDF datasheet #6
- PIC18F1220-ISO PDF datasheet #7
- PIC18F1220-EP PDF datasheet #8
- Current page: 59 of 308
- Download datasheet (5Mb)
6.0
The Flash program memory is readable, writable and
erasable during normal operation over the entire V
range.
A read from program memory is executed on one byte
at a time. A write to program memory is executed on
blocks of 8 bytes at a time. Program memory is erased
in blocks of 64 bytes at a time. A “Bulk Erase” operation
may not be issued from user code.
While writing or erasing program memory, instruction
fetches cease until the operation is complete. The
program memory cannot be accessed during the write
or erase, therefore, code cannot execute. An internal
programming timer terminates program memory writes
and erases.
A value written to program memory does not need to be
a valid instruction. Executing a program memory
location that forms an invalid instruction results in a
NOP.
6.1
In order to read and write program memory, there are
two operations that allow the processor to move bytes
between the program memory space and the data
RAM:
• Table Read (TBLRD)
• Table Write (TBLWT)
FIGURE 6-1:
© 2007 Microchip Technology Inc.
Note 1: Table Pointer points to a byte in program memory.
TBLPTRU
FLASH PROGRAM MEMORY
Table Reads and Table Writes
Table Pointer
TBLPTRH
TABLE READ OPERATION
(1)
TBLPTRL
Program Memory
(TBLPTR)
DD
Instruction: TBLRD*
Program Memory
The program memory space is 16 bits wide, while the
data RAM space is 8 bits wide. Table reads and table
writes move data between these two memory spaces
through an 8-bit register (TABLAT).
Table read operations retrieve data from program
memory and place it into TABLAT in the data RAM
space. Figure 6-1 shows the operation of a table read
with program memory and data RAM.
Table write operations store data from TABLAT in the
data memory space into holding registers in program
memory. The procedure to write the contents of the
holding registers into program memory is detailed in
Section 6.5 “Writing to Flash Program Memory”.
Figure 6-2 shows the operation of a table write with
program memory and data RAM.
Table operations work with byte entities. A table block
containing data, rather than program instructions, is not
required to be word aligned. Therefore, a table block
can start and end at any byte address. If a table write is
being used to write executable code into program
memory, program instructions will need to be word
aligned (TBLPTRL<0> = 0).
The EEPROM on-chip timer controls the write and
erase times. The write and erase voltages are gener-
ated by an on-chip charge pump rated to operate over
the voltage range of the device for byte or word
operations.
PIC18F1220/1320
Table Latch (8-bit)
TABLAT
DS39605F-page 57
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