Описание
The DS5000(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 either 8 or 32 kbytes of nonvolatile CMOS SRAM. Furthermore, internal data registers and key configuration registers are also nonvolatile. An optional realtime clock (RTC) gives permanently powered timekeeping. The clock keeps time to a hundredth of a second using an on-board crystal. Note: Designers must have the following documents to fully use all the features of this device. This data sheet contains pin descriptions, feature overviews, and electrical specifications. Errata sheets contain deviations from published specifications. The user"s guides offer detailed information about device features and operation. DS5000T IC data sheet DS5000T revision-specific errata sheet (Click here for availability) Secure Microcontroller User"s Guide
- 8-Bit 8051-Compatible MicrocontrollerAdapts to Task at Hand
- 8 or 32 kbytes of Nonvolatile RAM forProgram and/or Data Memory Storage
- Initial Downloading of Software in EndSystem via On-Chip Serial Port
- Capable of Modifying Its Own Programand/or Data Memory in End Use
- Maintains All Nonvolatile Resources for 10Years in the Absence of VCC at RoomTemperature
- Power-Fail Reset
- Early Warning Power-Fail Interrupt
- Watchdog Timer
- Executes Encrypted Software to PreventUnauthorized Disclosure
- Instruction Set and Pinout
