參數(shù)資料
型號: AT80C51-25R
廠商: TEMIC SEMICONDUCTORS
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 25 MHz, MICROCONTROLLER, PQFP44
文件頁數(shù): 9/170頁
文件大?。?/td> 4133K
代理商: AT80C51-25R
106
ATtiny4/5/9/10 [DATASHEET]
8127F–AVR–02/2013
15. Memory Programming
15.1
Features
Two Embedded Non-Volatile Memories:
– Non-Volatile Memory Lock bits (NVM Lock bits)
– Flash Memory
Four Separate Sections Inside Flash Memory:
– Code Section (Program Memory)
– Signature Section
– Configuration Section
– Calibration Section
Read Access to All Non-Volatile Memories from Application Software
Read and Write Access to Non-Volatile Memories from External programmer:
– Read Access to All Non-Volatile Memories
– Write Access to NVM Lock Bits, Flash Code Section and Flash Configuration Section
External Programming:
– Support for In-System and Mass Production Programming
– Programming Through the Tiny Programming Interface (TPI)
High Security with NVM Lock Bits
15.2
Overview
The Non-Volatile Memory (NVM) Controller manages all access to the Non-Volatile Memories. The NVM Controller
controls all NVM timing and access privileges, and holds the status of the NVM.
During normal execution the CPU will execute code from the code section of the Flash memory (program memory).
When entering sleep and no programming operations are active, the Flash memory is disabled to minimize power
consumption.
All NVM are mapped to the data memory. Application software can read the NVM from the mapped locations of
data memory using load instruction with indirect addressing.
The NVM has only one read port and, therefore, the next instruction and the data can not be read simultaneously.
When the application reads data from NVM locations mapped to the data space, the data is read first before the
next instruction is fetched. The CPU execution is here delayed by one system clock cycle.
Internal programming operations to NVM have been disabled and the NVM therefore appears to the application
software as read-only. Internal write or erase operations of the NVM will not be successful.
The method used by the external programmer for writing the Non-Volatile Memories is referred to as external pro-
gramming. External programming can be done both in-system or in mass production. See Figure 14-2 on page 96.
The external programmer can read and program the NVM via the Tiny Programming Interface (TPI).
In the external programming mode all NVM can be read and programmed, except the signature and the calibration
sections which are read-only.
NVM can be programmed at 5V, only.
15.3
Non-Volatile Memories
The ATtiny4/5/9/10 have the following, embedded NVM:
Non-Volatile Memory Lock Bits
Flash memory with four separate sections
相關PDF資料
PDF描述
AS80C31-36D 8-BIT, 36 MHz, MICROCONTROLLER, PQCC44
AS80C51C-36D 8-BIT, MROM, 36 MHz, MICROCONTROLLER, PQCC44
AS80C51-36R 8-BIT, MROM, 36 MHz, MICROCONTROLLER, PQCC44
AF180C51C-36D 8-BIT, MROM, 36 MHz, MICROCONTROLLER, PQFP44
AM9080ACC 8-BIT, 2.08 MHz, MICROPROCESSOR, CDIP40
相關代理商/技術參數(shù)
參數(shù)描述
AT80C51ID2 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:80C51 MCUs
AT80C51ID2-RLTIL 功能描述:IC MCU 8051 3V SPI 20MHZ 44-VQFP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:80C 標準包裝:9 系列:87C 核心處理器:8051 芯體尺寸:8-位 速度:40/20MHz 連通性:UART/USART 外圍設備:POR,WDT 輸入/輸出數(shù):32 程序存儲器容量:32KB(32K x 8) 程序存儲器類型:OTP EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4.5 V ~ 5.5 V 數(shù)據(jù)轉換器:- 振蕩器型:內(nèi)部 工作溫度:0°C ~ 70°C 封裝/外殼:40-DIP(0.600",15.24mm) 包裝:管件
AT80C51ID2-RLTIM 功能描述:IC MCU 8051 5V SPI 20MHZ 44-VQFP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:80C 標準包裝:9 系列:87C 核心處理器:8051 芯體尺寸:8-位 速度:40/20MHz 連通性:UART/USART 外圍設備:POR,WDT 輸入/輸出數(shù):32 程序存儲器容量:32KB(32K x 8) 程序存儲器類型:OTP EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4.5 V ~ 5.5 V 數(shù)據(jù)轉換器:- 振蕩器型:內(nèi)部 工作溫度:0°C ~ 70°C 封裝/外殼:40-DIP(0.600",15.24mm) 包裝:管件
AT80C51ID2-RLTUL 功能描述:8位微控制器 -MCU C51ID2 ROMless ind 3V 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
AT80C51ID2-RLTUM 功能描述:8位微控制器 -MCU C51ID2 ROMless ind 5V 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