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LH77790B Datasheet(PDF) 5 Page - Sharp Corporation |
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LH77790B Datasheet(HTML) 5 Page - Sharp Corporation |
5 / 32 page LH77790B Thermal & Electrical Specification 3 • Flexible Memory Interface – Six Multiplexeled Chip Enables/CAS pins – Two RAS pins – Fully Programmable – Six SRAM Banks (64MB each) – Two DRAM Banks (128MB each) – Access Privileges (System/User) • On-Chip DRAM Controller – Fast Page Mode – Normal Mode – CAS before RAS Refresh • Programmable Peripheral Interface (PPI) – 24 Programmable I/O Signals – Three Modes of Operation • Three 16-Bit Counter/Timer Channels – Six Modes of Operation – Binary or BCD Counting • Hardware Watchdog Timer – Eight Time-out Intervals – Protection Mechanism – Three Time-out Actions • Little Endian • JTAG Interface • Dual Supply Voltage – 5 V TTL - 25 MHz – 3.3 V LVTTL - 16.7 MHz Development Environment The 790B Evaluation Board (part number LU7790AH2A) and the ARM Software Develop- ment ToolKit (part number LU7V211H1) give users full access to the power and features of the 790B and provide a complete integrated environment for development. Users will be able to develop, benchmark, and profile both hardware and software easily and quickly. |
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