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| 型號： | PIC16LF84A |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | 18-pin Enhanced Flash/EEPROM 8-Bit Microcontroller |
| 中文描述： | 18引腳增強(qiáng)型閃存/ EEPROM的8位微控制器 |
| 文件頁數(shù)： | 5/68頁 |
| 文件大小： | 494K |
| 代理商： | PIC16LF84A |
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PIC16F84A
1998 Microchip Technology Inc.
Preliminary
DS35007A-page 5
2.0
MEMORY ORGANIZATION
There are two memory blocks in the PIC16F84A.
These are the program memory and the data memory.
Each block has its own bus, so that access to each
block can occur during the same oscillator cycle.
The data memory can further be 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 64 bytes of
data EEPROM memory have the address range
0h-3Fh. More details on the EEPROM memory can be
found in Section 5.0.
Additional information on device memory may be found
in the PICmicro Mid-Range Reference Manual,
(DS33023).
2.1
Program Memory Organization
The PIC16FXX has a 13-bit program counter capable
of addressing an 8K x 14 program memory space.
For the PIC16F84A, the first 1K x 14 (0000h-03FFh)
are physically implemented (Figure 2-1). Accessing a
location above the physically implemented address will
cause a wraparound. For example, for locations 20h,
420h, 820h, C20h, 1020h, 1420h, 1820h, and 1C20h
will be the same instruction.
The reset vector is at 0000h and the interrupt vector is
at 0004h.
FIGURE 2-1:
PROGRAM MEMORY MAP
AND STACK - PIC16F84A
PC<12:0>
Stack Level 1
Stack Level 8
Reset Vector
Peripheral Interrupt Vector
U
S
CALL, RETURN
RETFIE, RETLW
13
0000h
0004h
1FFFh
3FFh
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參數(shù)描述 |
|---|---|
| PIC16LF84A-04/P | 功能描述:8位微控制器 -MCU 1.75KB 68 RAM 13 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(fēng)格:SMD/SMT |
| PIC16LF84A-04/P | 制造商:Microchip Technology Inc 功能描述:8-Bit Microcontroller IC |
| PIC16LF84A-04/P | 制造商:Microchip Technology Inc 功能描述:IC 8BIT FLASH MCU 制造商:Microchip Technology Inc 功能描述:IC, 8BIT FLASH MCU |
| PIC16LF84A-04/SO | 功能描述:8位微控制器 -MCU 1.75KB 68 RAM 13 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(fēng)格:SMD/SMT |
| PIC16LF84A-04/SS | 功能描述:8位微控制器 -MCU 1.75KB 68 RAM 13 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(fēng)格:SMD/SMT |
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