- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄3861 > PIC18LF26J50-I/SS (Microchip Technology)IC PIC MCU FLASH 64K 2V 28-SSOP PDF資料下載
參數(shù)資料
| 型號： | PIC18LF26J50-I/SS |
| 廠商： | Microchip Technology |
| 文件頁數(shù)： | 4/32頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC PIC MCU FLASH 64K 2V 28-SSOP |
| 產(chǎn)品培訓模塊： | XLP Deep Sleep Mode 8-bit PIC® Microcontroller Portfolio |
| 標準包裝： | 47 |
| 系列： | PIC® XLP™ 18F |
| 核心處理器： | PIC |
| 芯體尺寸： | 8-位 |
| 速度： | 48MHz |
| 連通性： | I²C，SPI，UART/USART，USB |
| 外圍設備： | 欠壓檢測/復位，DMA，POR，PWM，WDT |
| 輸入/輸出數(shù)： | 16 |
| 程序存儲器容量： | 64KB（32K x 16） |
| 程序存儲器類型： | 閃存 |
| RAM 容量： | 3.8K x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 2 V ~ 3.6 V |
| 數(shù)據(jù)轉換器： | A/D 10x10b |
| 振蕩器型： | 內部 |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 28-SSOP（0.209"，5.30mm 寬） |
| 包裝： | 管件 |
| 產(chǎn)品目錄頁面： | 657 (CN2011-ZH PDF) |
第1頁第2頁第3頁當前第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁
PIC18F2XJXX/4XJXX FAMILY
DS39687E-page 12
2009 Microchip Technology Inc.
3.2
Code Memory Programming
Programming code memory is accomplished by first
loading data into the write buffer and then initiating a
programming sequence. The write buffer for all devices
in the PIC18F2XJXX/4XJXX family is 64 bytes. It can
be mapped to any 64-byte block beginning at 000000h.
The actual memory write sequence takes the contents
of this buffer and programs the 64-byte block of code
memory indicated by the Table Pointer.
Write buffer locations are not cleared following a write
operation; the buffer retains its data after the write is
complete. This means that the buffer must be written
with 64 bytes on each operation. If there are locations
in the code memory that are to remain empty, the
corresponding locations in the buffer must be filled with
FFFFh. This avoids rewriting old data from the previous
cycle.
The programming duration is internally timed. After a
Start Programming command is issued (4-bit com-
mand, ‘1111’), a NOP is issued, where the 4th PGC is
held high for the duration of the programming time, P9.
The
code
sequence
to
program
a
PIC18F2XJXX/4XJXX family device is shown in
Table 3-3. The flowchart shown in Figure 3-5 depicts
the
logic
necessary
to
completely
write
a
PIC18F2XJXX/4XJXX family device. The timing
diagram that details the Start Programming command
and parameter P9 is shown in Figure 3-6.
TABLE 3-3:
WRITE CODE MEMORY CODE SEQUENCE
Note 1: The TBLPTR register must point to the
same region when initiating the program-
ming sequence as it did when the write
buffers were loaded.
4-Bit
Command
Data Payload
Core Instruction
Step 1: Enable writes.
0000
84 A6
BSF
EECON1, WREN
Step 2: Load write buffer.
0000
0E <Addr[21:16]>
6E F8
0E <Addr[15:8]>
6E F7
0E <Addr[7:0]>
6E F6
MOVLW <Addr[21:16]>
MOVWF TBLPTRU
MOVLW <Addr[15:8]>
MOVWF TBLPTRH
MOVLW <Addr[7:0]>
MOVWF TBLPTRL
Step 3: Repeat for all but the last two bytes. Any unused locations should be filled with FFFFh.
1101
<MSB><LSB>
Write 2 bytes and post-increment address by 2.
Step 4: Load write buffer for last two bytes.
1111
0000
<MSB><LSB>
00 00
Write 2 bytes and start programming.
NOP - hold PGC high for time P9.
To continue writing data, repeat steps 2 through 4, where the Address Pointer is incremented by 2 at each iteration of the loop.
相關PDF資料 |
PDF描述 |
|---|---|
| SFW19R-2STE1 | SFW19R-2STE1-FFC/FPC CONN |
| HFW30R-2STE1 | HFW30R-2STE1-FFC/FPC CONN |
| PIC18LF44J50-I/ML | IC PIC MCU FLASH 16K 2V 44-QFN |
| AT90S1200-12PI | IC MCU 1K FLSH 12MHZ IT 20DIP |
| AT90S1200-12PC | IC MCU 1K FLSH 12MHZ 20DIP |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| PIC18LF26J50T-I/ML | 功能描述:8位微控制器 -MCU Full Spd USB 64KB Flsh 4KBRAM nanoWatt RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT |
| PIC18LF26J50T-I/SO | 功能描述:8位微控制器 -MCU Full Spd USB 64KB Flsh 4KBRAM nanoWatt RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT |
| PIC18LF26J50T-I/SS | 功能描述:8位微控制器 -MCU Full Spd USB 64KB Flsh 4KBRAM nanoWatt RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT |
| PIC18LF26J53-I/ML | 功能描述:8位微控制器 -MCU 64KB Flash 4KB RAM 12MIPS nanoWatt RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT |
| PIC18LF26J53-I/SO | 功能描述:8位微控制器 -MCU 64KB Flash 4KB RAM 12MIPS nanoWatt RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT |
發(fā)布緊急采購，3分鐘左右您將得到回復。