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参数资料
型号： SAK-XC886LM-8FFA3V3
厂商： INFINEON TECHNOLOGIES AG
元件分类： 微控制器/微处理器
英文描述： 8-BIT, FLASH, 24 MHz, MICROCONTROLLER, PQFP48
封装： PLASTIC, TQFP-48
文件页数： 66/144页
文件大小： 1455K
代理商： SAK-XC886LM-8FFA3V3
XC886/888CLM
Functional Description
Data Sheet
21
V1.2, 2009-07
code or data. Therefore, even though the ROM device contains either a 24-Kbyte or 32-
Kbyte ROM, the maximum size of code that can be placed in the ROM is the given size
less four bytes.
3.2.1
Memory Protection Strategy
The XC886/888 memory protection strategy includes:
Read-out protection: The user is able to protect the contents in the Flash (for Flash
devices) and ROM (for ROM devices) memory from being read
– Flash protection is enabled by programming a valid password (8-bit non-zero
value) via BSL mode 6.
– ROM protection is fixed with the ROM mask and is always enabled.
Flash program and erase protection: This feature is available only for Flash devices.
3.2.1.1
Flash Memory Protection
As long as a valid password is available, all external access to the device, including the
Flash, will be blocked.
For additional security, the Flash hardware protection can be enabled to implement a
second layer of read-out protection, as well as to enable program and erase protection.
Flash hardware protection is available only for Flash devices and comes in two modes:
Mode 0: Only the P-Flash is protected; the D-Flash is unprotected
Mode 1: Both the P-Flash and D-Flash are protected
The selection of each protection mode and the restrictions imposed are summarized in
Table 4.
Table 4
Flash Protection Modes
Flash Protection Without hardware
protection
With hardware protection
Hardware
Protection Mode
-0
1
Activation
Program a valid password via BSL mode 6
Selection
Bit 4 of password = 0 Bit 4 of password = 1
MSB of password = 0
Bit 4 of password = 1
MSB of password = 1
P-Flash
contents can be
read by
Read instructions in
any program memory
Read instructions in
the P-Flash
Read instructions in
the P-Flash or D-
Flash
External access
to P-Flash
Not possible
相关PDF资料
PDF描述
SAF-XC886LM-8FFA5V 8-BIT, FLASH, 24 MHz, MICROCONTROLLER, PQFP48
SAF-XC888C-8FFA3V3 8-BIT, FLASH, 24 MHz, MICROCONTROLLER, PQFP64
SAF-XC888C-8FFI5V 8-BIT, FLASH, 24 MHz, MICROCONTROLLER, PQFP64
SAK-XC888CLM-8FFA3V3 8-BIT, FLASH, 24 MHz, MICROCONTROLLER, PQFP64
SAK-XC888CLM-8FFA5V 8-BIT, FLASH, 24 MHz, MICROCONTROLLER, PQFP64
相关代理商/技术参数
参数描述
SAKXC886LM8FFA5VAC 功能描述:8位微控制器 -MCU RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
SAK-XC886LM-8FFI 5V AC 功能描述:8位微控制器 -MCU 8-Bit Single-Chip 5V 24MHz Flash RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
SAK-XC888-6FFA 制造商:Infineon Technologies AG 功能描述:IC 8BIT MCU FLASH SMD
SAK-XC888-6FFA 5V AC 功能描述:8位微控制器 -MCU MICROCONTROLLER 8-BIT RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
SAK-XC888-6FFI 5V AC 功能描述:8位微控制器 -MCU 8-Bit Single-Chip 5V 24MHz Flash RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
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