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參數(shù)資料
| 型號(hào)： | DS2251T |
| 廠(chǎng)商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類(lèi)： | 微控制器/微處理器 |
| 英文描述： | 128K Soft Microcontroller Module(128K軟件微控制器模塊) |
| 中文描述： | 8-BIT, MICROCONTROLLER, SMA72 |
| 文件頁(yè)數(shù)： | 2/20頁(yè) |
| 文件大?。?/td> | 156K |
| 代理商： | DS2251T |
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DS2251T
021998 2/20
mapped peripherals. This leaves the 32 I/O port pins
free for application use.
The DS2251T provides high–reliability operation in por-
table 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 main-
tained 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
on–board 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).
ORDERING INFORMATION
PART NUMBER
RAM SIZE
MAX CRYSTAL SPEED
TIMEKEEPING
DS2251T–32–16
32K bytes
16 MHz
Yes
DS2251T–64–16
64K bytes
16 MHz
Yes
DS2251T–128–16
128K bytes
16 MHz
Yes
Operating information is contained in the User’s Guide section of the Secure Microcontroller Data Book. This data
sheet provides ordering information, pinout, and electrical specifications.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS2252T | Secure Microcontroller Module(安全的微控制器模塊) |
| DS229 | Triple RS232 Transmitter/Receiver(三路RS232發(fā)送器/接收器) |
| DS232A | Dual RS232 Transmitter/Receiver(雙路RS232發(fā)送器/接收器) |
| DS2422 | 1K-Bit 1-Wire RAM with Counters(帶計(jì)數(shù)器的1K位1線(xiàn)串行RAM) |
| DS2423 | 4K-Bit 1-Wire RAM with Counters(帶計(jì)數(shù)器的4K位1線(xiàn)串行RAM) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS2251T_06 | 制造商:DALLAS 制造商全稱(chēng):Dallas Semiconductor 功能描述:128k Soft Microcontroller Module |
| DS2251T08-08 | 制造商:未知廠(chǎng)家 制造商全稱(chēng):未知廠(chǎng)家 功能描述:Microcontroller |
| DS2251T08-12 | 制造商:未知廠(chǎng)家 制造商全稱(chēng):未知廠(chǎng)家 功能描述:Microcontroller |
| DS2251T08-16 | 制造商:未知廠(chǎng)家 制造商全稱(chēng):未知廠(chǎng)家 功能描述:Microcontroller |
| DS2251T128-08 | 制造商:未知廠(chǎng)家 制造商全稱(chēng):未知廠(chǎng)家 功能描述:Microcontroller |
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