PIC18LF14K50-I/SS Microchip Technology, PIC18LF14K50-I/SS Datasheet - Page 49

IC PIC MCU FLASH 16K 1.8V 20SSOP

PIC18LF14K50-I/SS

Manufacturer Part Number
PIC18LF14K50-I/SS
Description
IC PIC MCU FLASH 16K 1.8V 20SSOP
Manufacturer
Microchip Technology
Series
PIC® XLP™ 18Fr

Specifications of PIC18LF14K50-I/SS

Core Size
8-Bit
Program Memory Size
16KB (8K x 16)
Core Processor
PIC
Speed
48MHz
Connectivity
I²C, SPI, UART/USART, USB
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
14
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
768 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Data Converters
A/D 11x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
20-SSOP
Controller Family/series
PIC18
No. Of I/o's
15
Eeprom Memory Size
256Byte
Ram Memory Size
768Byte
Cpu Speed
48MHz
No. Of Timers
4
Processor Series
PIC18LF
Core
PIC
Data Bus Width
8 bit
Data Ram Size
256 B
Interface Type
EUSART, I2C, MSSP, SPI, USB
Maximum Clock Frequency
32 KHz
Number Of Programmable I/os
18
Number Of Timers
4
Operating Supply Voltage
1.8 V to 3.6 V
Maximum Operating Temperature
+ 125 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, DM164127, DV164126
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 12 Channel
Package
20SSOP
Device Core
PIC
Family Name
PIC18
Maximum Speed
48 MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
PIC18LF14K50-I/SS
Manufacturer:
ADI
Quantity:
1 341
4.0
The Flash program memory is readable, writable and
erasable during normal operation over the entire V
range.
A read from program memory is executed one byte at
a time. A write to program memory is executed on
blocks of 32 or 8 bytes at a time depending on the spe-
cific device (See Table 4-1). Program memory is
erased in blocks of 64 bytes at a time. The difference
between the write and erase block sizes requires from
1 to 8 block writes to restore the contents of a single
block erase. A bulk erase operation can not be issued
from user code.
TABLE 4-1:
Writing or erasing program memory will cease
instruction fetches 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.
FIGURE 4-1:
© 2009 Microchip Technology Inc.
PIC18F13K50
PIC18F14K50
Note 1: Table Pointer register points to a byte in program memory.
Device
TBLPTRU
FLASH PROGRAM MEMORY
Table Pointer
WRITE/ERASE BLOCK SIZES
TBLPTRH
TABLE READ OPERATION
Size (bytes)
Write Block
(1)
16
8
TBLPTRL
Program Memory
(TBLPTR)
Erase Block
Size (bytes)
PIC18F1XK50/PIC18LF1XK50
64
64
Preliminary
DD
Instruction: TBLRD*
Program Memory
4.1
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)
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).
The table read operation retrieves one byte of data
directly from program memory and places it into the
TABLAT register. Figure 4-1 shows the operation of a
table read.
The table write operation stores one byte of data from the
TABLAT register into a write block holding register. The
procedure to write the contents of the holding registers
into program memory is detailed in Section 4.5 “Writing
to Flash Program Memory”. Figure 4-2 shows the
operation of a table write with program memory and data
RAM.
Table operations work with byte entities. Tables contain-
ing data, rather than program instructions, are not
required to be word aligned. Therefore, a table 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.
Table Reads and Table Writes
Table Latch (8-bit)
TABLAT
DS41350C-page 47

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