Intel 8xC251TB

The Intel 8xC251TB is a D-Step 251 CMOS 8-bit microcontroller with 8/16/32-bit instructions and registers, 32 I/O lines, 3 Timers/Counters, WDT, 8 Interrupts/4 Priority Levels, Dual UART, PCA, 16KB on-chip ROM or EPROM, 1K on-chip RAM.

Development Tools Compiler, Assembler, Linker, Debugger CA251 Compiler Kit Keil DK251 Developer's Kit Keil Data Sheets Data Sheet 181,174 bytes User's Manual 2,225,431 bytes User's Manual Addendum 95,625 bytes Header Files REG251T.H 3,558 bytes Example Code 8051 /INT0 External Interrupt Example Program Evaluation Boards MCBx51 Keil F100 Tecel Emulators DS-251 Ceibo DProbe251 with DTrace16 or DBox16 Hitex iC1000 PowerEmulator iSystem Device Programmers Pilot-U44-Plus Advin Pilot-U84-Plus Advin

Simulated Features The following on-chip peripherals are simulated by the Keil Software µVision Debugger. Interrupts 8S/4L (Including External) PCA Timer with Modules Port 0 Port 1 Port 2 Port 3 Power Saving Modes (Idle and Power Down) Serial UART 0 (Enhanced Interface) Serial UART 1 (Enhanced Interface) Timer 0 Timer 1 Timer 2 (Extended Timer 2) Watchdog Timer AGDI Drivers The following AGDI Drivers are available for the Keil Software µVision Debugger. Keil MON251 Driver Keil