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参数资料
| 型号： | DS2251T-64-16 |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 12/22页 |
| 文件大小： | 0K |
| 描述： | IC MICROCNTRLR 64K 16MHZ 72-SIMM |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 系列： | DS225x |
| 核心处理器： | 8051 |
| 芯体尺寸： | 8-位 |
| 速度： | 16MHz |
| 连通性： | 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： | 64K x 8 |
| 电压 - 电源 (Vcc/Vdd)： | 4.5 V ~ 5.5 V |
| 振荡器型： | 外部 |
| 工作温度： | 0°C ~ 70°C |
| 封装/外壳： | 72-SIMM |
| 包装： | 托盘 |
DS2251T
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The DS2251T provides the benefits of NV RAM without using I/O resources. Between 32 kbytes and 128
kbytes of onboard NV RAM are available. A non-multiplexed Byte-wide address and data bus is used for
memory access. This bus, which is available at the connector, can perform all memory access and also
provide decoded chip enables for off-board memory mapped peripherals. This leaves the 32 I/O port pins
free for application use.
The DS2251T provides high-reliability operation in portable systems or systems with unreliable power.
These features include the ability to save the operating state, Power-fail Reset, Power-fail Interrupt, and
Watchdog Timer. All nonvolatile memory and resources are maintained for over 10 years at room
temperature in the absence of power.
A user loads programs into the DS2251T via its on-chip serial Bootstrap loader. This function supervises
the loading of software into NV RAM, validates it, then becomes transparent to the user. Software is
stored in onboard CMOS SRAM. Using its internal Partitioning, the DS2251T can divide a common
RAM into user-selectable program and data segments. This Partition can be selected at program loading
time, but can be modified anytime later. The microprocessor will decode memory access to the SRAM,
access memory via its Byte-wide bus and write-protect the memory portion designated as program
(ROM).
Operating information is contained in the Secure Microcontroller User’s Guide. This data sheet provides
ordering information, pinout, and electrical specifications.
ORDERING INFORMATION
PART
RAM SIZE (kB)
MAX CRYSTAL
SPEED (MHz)
TIMEKEEPING?
DS2251T-32-16
32
16
Yes
DS2251T-32-16#
32
16
Yes
DS2251T-64-16
64
16
Yes
DS2251T-64-16#
64
16
Yes
DS2251T-128-16
128
16
Yes
DS2251T-128-16#
128
16
Yes
# Denotes a RoHS-compliant package that may contain lead exempt under the RoHS requirements.
相关PDF资料 |
PDF描述 |
|---|---|
| DS2252T-64-16# | IC MCU 64KB 16MHZ 40-SIMM |
| DS2252T-64-16 | IC MICROCNTRLR 64K 16MHZ 40-SIMM |
| DS5000T-32-16 | IC MPU W/RTC 32KB 16MHZ 40-DIP |
| DS2250T-64-16 | IC MICROCNTRLR 64X8 16MHZ 40SIMM |
| DS2250-64-16 | IC MICROCNTRLR 64X8 16MHZ 40SIMM |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS2251T-64-16# | 功能描述:模块化系统 - SOM 64K 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 |
| DS2252-08-08 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Microcontroller |
| DS2252-08-12 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Microcontroller |
| DS2252-08-16 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Microcontroller |
| DS2252-128-08 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Microcontroller |
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