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8XC251SA Datasheet(PDF) 3 Page - Intel Corporation |
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8XC251SA Datasheet(HTML) 3 Page - Intel Corporation |
3 / 36 page ![]() PRELIMINARY 3 8XC251SA/SB/SP/SQ HIGH-PERFORMANCE CHMOS MICROCONTROLLER Figure 1. 8XC251SA/SB/SP/SQ Block Diagram SRC2 (8) Code Address (24) Clock & Reset Code Bus (16) Data RAM 512 Bytes or 1024 Bytes Code OTPROM/ROM 8 Kbytes or 16 Kbytes Watchdog Timer Timer/ Counters PCA Serial I/O Peripherals Port 2 Drivers P2.7:0 Port 0 Drivers P0.7:0 Port 3 Drivers P3.7:0 Port 1 Drivers P1.7:0 Memory Address (16) MCS® 251 Microcontroller Core System Bus and I/O Ports I/O Ports and Peripheral Signals SRC1 (8) Peripheral Interface Interrupt Handler Clock & Reset Bus Interface Instruction Sequencer DST (16) ALU Data Memory Interface Memory Data (16) Register File 8XC251SA/SB/SP/SQ Microcontroller A4214-01 |