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LC866416B 데이터시트(PDF) 2 Page - Sanyo Semicon Device |
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2 / 21 page LC866448B/44B/40B/36B/32B/28B/24B/20B/16B/12B/08B No.6699-2/21 Features (1) Read-Only Memory (ROM) : LC866448B 49152 × 8 bits : LC866444B 45056 × 8 bits : LC866440B 40960 × 8 bits : LC866436B 36864 × 8 bits : LC866432B 32768 × 8 bits : LC866428B 28672 × 8 bits : LC866424B 24576 × 8 bits : LC866420B 20480 × 8 bits : LC866416B 16384 × 8 bits : LC866412B 12288 × 8 bits : LC866408B 8192 × 8 bits (2) Random Access Memory (RAM) : LC866448B/44B/40B/36B 1152 × 8 bits : LC866432B/28B/24B 768 × 8 bits : LC866420B/16B 640 × 8 bits : LC866412B/08B 512 × 8 bits (3) Bus Cycle Time/Instruction Cycle Time The LC866448B/44B/40B/36B/32B/28B/24B/20B/16B/12B/08B are constructed to read ROM twice within one instruction cycle. It has 1.7 times more performance capability within the same instruction cycle compared to our 4-bit microcomputers (LC66000 series). Bus cycle time indicates the speed to read ROM. Bus cycle time Cycle time Clock divider System clock oscillation Oscillation Frequency Voltage 0.5 µs 1 µs 1/1 Ceramic resonator oscillation 6MHz 4.5V to 6.0V 2 µs 4 µs 1/1 Ceramic resonator oscillation 3MHz 2.5V to 6.0V 7.5 µs 15 µs 1/1 RC resonator oscillation 800kHz 2.5V to 6.0V 183 µs 366 µs 1/2 Crystal oscillation 32.768kHz 2.5V to 6.0V (4) Ports - Input/output ports : 1 port (8 terminals : port 1) Input/output programmable in a bit - 15V withstand Input/Output ports : 2 ports (12 terminals) Input/output port programmable in nibble unit : 1 port (8 terminals : port 0) (When the N-channel open drain output is selected, the data in a bit can be inputted.) Input/output port programmable in a bit : 1 port (4 terminals : port 3) - Input port : 2 ports (14 terminals : port 7,8) - VFD output port : 38 terminals Large current output for digit : 16 terminals Pull-down resistor option available - Other function Input/output port : 1 port (6 terminals : port E) Input port : 2 ports (16 terminals : port C,D) (5) VFD automatic dislay controller -Segment/digit output pattern programmable Any segment/digit combination available VFD parallel-drive available - 16-step dimmer function available (6) AD converter - 8-channel × 8-bit AD converter (7) Serial-interface - 1 channel × 16-bit serial-interface circuits - 1 channel × 8-bit serial-interface circuits - LSB first / MSB first function available - Internal 8-bit baud-rate generator in common with two serial-interface circuits |
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