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MB91F479 Datasheet(PDF) 3 Page - Fujitsu Component Limited. |
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MB91F479 Datasheet(HTML) 3 Page - Fujitsu Component Limited. |
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3 / 90 page  MB91470/480 Series 3 (Continued) • 12-bit A/D Converter (successive approximation type) • Resolution : 12 bits • Conversion Time : 2.0 µs (minimum conversion time for 33 MHz system clock) 2.2 µs (minimum conversion time for 40 MHz system clock) • Differential input mode is available. • Clock monitor • Peripheral clock (CLKP) divided by 2/4/8/16/32/64/128/256 can be output. • Multiplication and Addition Calculator • RAM : Instruction RAM (I-RAM) 256 × 16-bit Factor RAM (X-RAM) 64 × 32-bit Variable RAM (Y-RAM) 64 × 32-bit • High-speed multiplication and addition (seven-stage pipeline processing) • Product addition (32-bit × 32-bit + 72-bit) • Operation result is extracted rounded from 72 bits to 32 bits or 72-bit result data reading. • DMAC (DMA Controller) • Transfers can be started by software or by interrupts from the built-in peripherals. • Wild register • Instructions or data located at a target address can be replaced (in the built-in Flash/ROM area only) . • External bus interface • Maximum operating frequency of 40 MHz • 16-bit address full output (64 Kbytes space) capability • 8/16-bit data output • Use of unused data/address pins as general-purpose I/O ports • Totally independent 3-area chip select outputs that can be set at minimum of 64 Kbytes. • Support of interface for various memory (SRAM, ROM/Flash) • Basic bus cycle : 2 cycles • Automatic wait cycle generator that can be programmed for each area and can insert waits • External wait cycle using RDY input • Other Features • Watchdog timer • Low-power consumption modes • Sleep/stop function • CMOS technologies : 0.18 µm • Power supply : Single power supply (VCC = 4.0 V to 5.5 V) * : Purchase of Fujitsu I2C components conveys a license under the Philips I2C Patent Rights to use, these components in an I2C system provided that the system conforms to the I2C Standard Specification as defined by Philips. |
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