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参数资料
| 型号： | DS2252T-128-16 |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | Microcontroller |
| 英文描述： | 8-BIT, 16 MHz, MICROCONTROLLER, SMA40 |
| 封装： | SIMM-40 |
| 文件页数： | 14/16页 |
| 文件大小： | 674K |
| 代理商： | DS2252T-128-16 |
DS2252T
7 of 16
DS2252T MEMORY MAP WITH (PES = 1) Figure 4
POWER MANAGEMENT
The DS2252T monitors VCC to provide power-fail reset, early warning power-fail interrupt, and
switchover to lithium backup. It uses an internal band-gap reference in determining the switch points.
These are called VPFW, VCCMIN, and VLI respectively. When VCC drops below VPFW, the DS2252T will
perform an interrupt vector to location 2Bh if the power-fail warning is enabled. Full processor operation
continues regardless. When power falls further to VCCMIN, the DS2252T invokes a reset state. No further
code execution will be 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 will switch to the built-in lithium cell for power. The
majority of internal circuits will be disabled and the remaining nonvolatile states will be retained. The
Secure Microcontroller User’s Guide has more information on this topic. The trip points VCCMIN and
VPFW are listed in the electrical specifications.
NV RAM
PROGRAM
PROGRAM MEMORY
DATA MEMORY (MOVX)
FFFFh --
0000h --
PARTITION
= NOT ACCESSIBLE
REAL-TIME
CLOCK
C000h --
B000h --
4000h --
-- 64K
-- 16K
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS2252T-128-16# | 功能描述:模块化系统 - SOM 128K Soft MCU Module RoHS:否 制造商:Digi International 外观尺寸:ConnectCore 9P 处理器类型:ARM926EJ-S 频率:150 MHz 存储容量:8 MB, 16 MB 存储类型:NOR Flash, SDRAM 接口类型:I2C, SPI, UART 工作电源电压:3.3 V 最大工作温度:+ 85 C 尺寸:1.97 in x 1.97 in x 6.1 in |
| DS2252T32-08 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Microcontroller |
| DS2252T-32-12 | 功能描述:模块化系统 - SOM RoHS:否 制造商:Digi International 外观尺寸:ConnectCore 9P 处理器类型:ARM926EJ-S 频率:150 MHz 存储容量:8 MB, 16 MB 存储类型:NOR Flash, SDRAM 接口类型:I2C, SPI, UART 工作电源电压:3.3 V 最大工作温度:+ 85 C 尺寸:1.97 in x 1.97 in x 6.1 in |
| DS2252T-32-16 | 功能描述:模块化系统 - SOM 32K Soft MCU Module RoHS:否 制造商:Digi International 外观尺寸:ConnectCore 9P 处理器类型:ARM926EJ-S 频率:150 MHz 存储容量:8 MB, 16 MB 存储类型:NOR Flash, SDRAM 接口类型:I2C, SPI, UART 工作电源电压:3.3 V 最大工作温度:+ 85 C 尺寸:1.97 in x 1.97 in x 6.1 in |
| DS2252T-32-16# | 功能描述:模块化系统 - SOM 32K Soft MCU Module RoHS:否 制造商:Digi International 外观尺寸:ConnectCore 9P 处理器类型:ARM926EJ-S 频率:150 MHz 存储容量:8 MB, 16 MB 存储类型:NOR Flash, SDRAM 接口类型:I2C, SPI, UART 工作电源电压:3.3 V 最大工作温度:+ 85 C 尺寸:1.97 in x 1.97 in x 6.1 in |
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