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| 型号： | DS5002FMN-16 |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 16/25页 |
| 文件大小： | 0K |
| 描述： | IC MPU SECURE 16MHZ IND 80-TQFP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 66 |
| 系列： | DS500x |
| 核心处理器： | 8051 |
| 芯体尺寸： | 8-位 |
| 速度： | 16MHz |
| 连通性： | EBI/EMI，SIO，UART/USART |
| 外围设备： | 电源故障复位，WDT |
| 输入/输出数： | 32 |
| 程序存储器类型： | SRAM |
| RAM 容量： | 128 x 8 |
| 电压 - 电源 (Vcc/Vdd)： | 4.5 V ~ 5.5 V |
| 振荡器型： | 外部 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 80-BQFP |
| 包装： | 托盘 |
DS5002FP Secure Microprocessor Chip
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Figure 14. Connection to 64k x 8 SRAM
POWER MANAGEMENT
The DS5002FP monitors VCC to provide power-fail reset, early warning power-fail interrupt, and switchover to
lithium backup. It uses an internal bandgap reference in determining the switch points. These are called VPFW,
VCCMIN, and VLI respectively. When VCC drops below VPFW, the DS5002FP will perform an interrupt vector to location
2Bh if the power-fail warning was enabled. Full processor operation continues regardless. When power falls further
to VCCMIN, the DS5002FP invokes a reset state. No further code execution is performed unless power rises back
above VCCMIN. All decoded chip enables and the R/W signal go to an inactive (logic 1) state. VCC is still the power
source at this time. When VCC drops further to below VLI, internal circuitry switch to the lithium cell for power. The
majority of internal circuits will be disabled and the remaining nonvolatile states will be retained. Any devices
connected VCCO will be powered by the lithium cell at this time. VCCO is at the lithium battery voltage minus
approximately 0.45V (less a diode drop). This drop varies depending on the load. Low-power SRAMs should be
used for this reason. When using the DS5002FP, the user must select the appropriate battery to match the RAM
data retention current and the desired backup lifetime. Note that the lithium cell is only loaded when VCC < VLI. The
Secure Microcontroller User’s Guide has more information on this topic. The trip points VCCMIN and VPFW are listed
in the electrical specifications.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS5002FMN-16+ | 功能描述:微处理器 - MPU Soft MCU Chip RoHS:否 制造商:Atmel 处理器系列:SAMA5D31 核心:ARM Cortex A5 数据总线宽度:32 bit 最大时钟频率:536 MHz 程序存储器大小:32 KB 数据 RAM 大小:128 KB 接口类型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作电源电压:1.8 V to 3.3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-324 |
| DS5002FP | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:Secure Microprocessor Chip |
| DS5002FP/C01 | 功能描述:微处理器 - MPU RoHS:否 制造商:Atmel 处理器系列:SAMA5D31 核心:ARM Cortex A5 数据总线宽度:32 bit 最大时钟频率:536 MHz 程序存储器大小:32 KB 数据 RAM 大小:128 KB 接口类型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作电源电压:1.8 V to 3.3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-324 |
| DS5002FP_06 | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:Secure Microprocessor Chip |
| DS5002FP_1 | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:Secure Microprocessor Chip |
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