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參數(shù)資料
| 型號(hào)： | DS2250T |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Soft Microcontroller Module(軟件微控制器模塊) |
| 中文描述： | 柔性微控制器模塊 |
| 文件頁數(shù)： | 1/20頁 |
| 文件大?。?/td> | 163K |
| 代理商： | DS2250T |
DS2250(T)
Soft Microcontroller Module
DS2250(T)
021998 1/20
FEATURES
8–bit 8051 compatible microcontroller adapts to task–
at–hand:
– 8K, 32K, or 64K bytes of nonvolatile RAM for
program and/or data memory storage
– Initial downloading of software in end system
via on–chip serial port
– Capable of modifying its own program and/or
data memory in end use
High–reliability operation:
– Maintains all nonvolatile resources for 10 years
in the absence of V
CC
– Power–fail reset
– Early warning power–fail interrupt
– Watchdog timer
Software Security Feature:
– Executes encrypted software to prevent unau-
thorized disclosure
On–chip, full–duplex serial I/O ports
Two on–chip timer/event counters
32 parallel I/O lines
Compatible with industry standard 8051 instruction
set
Permanently Powered real time clock
PIN ASSIGNMENT
40–PIN SIMM
1
20
21
40
DESCRIPTION
The DS2250(T) Soft Microcontroller Module is a fully
8051 compatible 8–bit CMOS microcontroller that offers
“softness” in all aspects of its application. This is ac-
complished through the comprehensive use of nonvola-
tile technology to preserve all information in the ab-
sence of system V
CC
. The internal program/data
memory space is implemented using 8K, 32K, or 64K
bytes of nonvolatile CMOS SRAM. Furthermore, inter-
nal data registers and key configuration registers are
also nonvolatile. An optional real time clock gives per-
manently powered timekeeping. The clock keeps time
to a hundredth of a second using an on–board crystal.
All nonvolatile memory and resources are maintained
for over 10 years at room temperature in the absence of
power.
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| DS2250T08-08 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microcontroller |
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