參數(shù)資料
型號： PIC16LF818T-I/SS
元件分類： 微控制器/微處理器
英文描述： 8-BIT, FLASH, 10 MHz, RISC MICROCONTROLLER, PDSO20
封裝： 0.209 INCH, PLASTIC, MO-150, SSOP-20
文件頁數(shù)： 13/176頁
文件大小： 3124K
代理商： PIC16LF818T-I/SS
2004 Microchip Technology Inc.
DS39598E-page 9
PIC16F818/819
2.0
MEMORY ORGANIZATION
There are two memory blocks in the PIC16F818/819.
These are the program memory and the data memory.
Each block has its own bus, so access to each block
can occur during the same oscillator cycle.
The data memory can be further broken down into the
general purpose RAM and the Special Function
Registers (SFRs). The operation of the SFRs that
control the “core” are described here. The SFRs used
to control the peripheral modules are described in the
section discussing each individual peripheral module.
The data memory area also contains the data
EEPROM memory. This memory is not directly mapped
into the data memory but is indirectly mapped. That is,
an indirect address pointer specifies the address of the
data EEPROM memory to read/write. The PIC16F818
device’s 128 bytes of data EEPROM memory have the
address range of 00h-7Fh and the PIC16F819 device’s
256 bytes of data EEPROM memory have the address
range of 00h-FFh. More details on the EEPROM
memory can be found in Section 3.0 “Data EEPROM
Additional information on device memory may be found
in the “PICmicro Mid-Range Reference Manual”
(DS33023).
FIGURE 2-1:
PROGRAM MEMORY MAP
AND STACK FOR
PIC16F818
2.1
Program Memory Organization
The PIC16F818/819 devices have a 13-bit program
counter capable of addressing an 8K x 14 program
memory space. For the PIC16F818, the first 1K x 14
(0000h-03FFh)
is
physically
implemented
(see
Figure 2-1). For the PIC16F819, the first 2K x 14 is
located at 0000h-07FFh (see Figure 2-2). Accessing a
location above the physically implemented address will
cause a wraparound. For example, the same instruc-
tion will be accessed at locations 020h, 420h, 820h,
C20h, 1020h, 1420h, 1820h and 1C20h.
The Reset vector is at 0000h and the interrupt vector is
at 0004h.
FIGURE 2-2:
PROGRAM MEMORY MAP
AND STACK FOR
PIC16F819
PC<12:0>
13
0000h
0004h
0005h
Stack Level 1
Stack Level 8
Reset Vector
Interrupt Vector
On-Chip
CALL, RETURN
RETFIE, RETLW
1FFFh
Stack Level 2
Program
Memory
Page 0
03FFh
0400h
Wraps to
0000h-03FFh
PC<12:0>
13
0000h
0004h
0005h
Stack Level 1
Stack Level 8
Reset Vector
Interrupt Vector
On-Chip
CALL, RETURN
RETFIE, RETLW
1FFFh
Stack Level 2
Program
Memory
Page 0
07FFh
0800h
Wraps to
0000h-07FFh
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相關代理商/技術參數(shù)
參數(shù)描述
PIC16LF819-I/ML 功能描述:8位微控制器 -MCU 3.5KB 256 RAM 16 I/O 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
PIC16LF819-I/MLTSL 功能描述:8位微控制器 -MCU 3.5 KB FL 256 RAM 16 I/O 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
PIC16LF819-I/P 功能描述:8位微控制器 -MCU 3.5KB 256 RAM 16 I/O 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
PIC16LF819-I/PTSL 功能描述:8位微控制器 -MCU 3.5 KB FL 256 RAM 16 I/O 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
PIC16LF819-I/SO 功能描述:8位微控制器 -MCU 3.5KB 256 RAM 16 I/O 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
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