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 accomplished through the comprehensive use of nonvolatile technology to preserve all information in the absence of system VCC. The internal program/data memory space is implemented using 8, 32, or 64kB of nonvolatile CMOS SRAM. Furthermore, internal data registers and key configuration registers are also nonvolatile. An optional real-time clock gives permanently 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.
주요기능
8-bit 8051-Compatible Microcontroller Adapts to Task-At-Hand:
8, 32, or 64kB of NV 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 VCC
Power-Fail Reset
Early Warning Power-Fail Interrupt
Watchdog Timer
Software Security Feature:
Executes Encrypted Software to Prevent Unauthorized 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
Notes: **This pricing is BUDGETARY, for comparing similar parts. Prices are in
U.S. dollars and subject to change. Quantity pricing may vary
substantially and international prices may differ due to local
duties, taxes, fees, and exchange rates. For volume-specific prices
and delivery, please see the price and availability page
or contact an authorized distributor.
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부품번호 suffix: T 또는 T&R = 테잎 앤 릴,
+ = RoHS/lead-free,
# = RoHS/lead 예외.추가 정보:전체 데이터 시트또는 부품번호 규칙
* 일부 패키지는 크기 편차(variation)를 가지며 이 값은 도면 상에 제시되어 있습니다. “패키지 코드/편차”는 해당 제품이 사용하고 있는 편차를 보여줍니다. 부품번호 suffix에 "+", "#", "-"는 RoHS 준수 상태를 나타냅니다. 패키지 도면에 suffix 문자는 다를 수 있습니다.
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