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LC72323 Datasheet(PDF) 1 Page - Sanyo Semicon Device |
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LC72323 Datasheet(HTML) 1 Page - Sanyo Semicon Device |
1 / 13 page Overview The LC72323 is a single-chip microcontroller for use in electronic tuning applications. It includes on chip both LCD drivers and a PLL circuit that can operate at up to 150 MHz. It features a highly efficient instruction set, and powerful hardware. Functions • Stack: Eight levels • Fast programmable divider • General-purpose counters: HCTR for frequency measurement and LCTR for frequency or period measurement • LCD driver for displays with up to 56 segments (1/2 duty, 1/2 bias) • Program memory (ROM): 3 k words by 16 bits • Data memory (RAM): 256 4-bit digits • All instructions are single-word instructions • Cycle time: 2.67 µs, 13.33 µs, or 40.00 µs (option) • Unlock FF: 0.55 µs detection, 1.1 µs detection • Timer FF: 1 ms, 5ms, 25ms, 125ms • Input ports*: One dedicated key input port and one high-breakdown voltage port • Output ports*: Two dedicated key output ports, one high-breakdown voltage open-drain port Two CMOS output ports (of which one can be switched to be used as LCD driver outputs) Seven CMOS output ports (mask option switchable to use as LCD ports) • I/O ports*: One switchable between input and output in four-bit units and one switchable between input and output in one-bit units Note: * Each port consists of four bits. • Program runaway can be detected and a special address set (Programmable watchdog timer). • Voltage detection type reset circuit • One 6-bit A/D converter • One external interrupt • Hold mode for RAM backup • Sense FF for hot/cold startup determination • PLL: 4.5 to 5.5 V • CPU: 3.5 to 5.5 V • RAM: 1.3 to 5.5 V • Package: QIP80E Package Dimensions unit: mm 3174-QFP80E CMOS LSI 32896HA (OT)/31595TH (OT) No. 4950-1/13 SANYO: QFP80E [LC72323] SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN Single-Chip Microcontroller with PLL and LCD Driver LC72323 Ordering number : EN4950A This LSI can easily use CCB that is SANYO’s original bus format. • CCB is a trademark of SANYO ELECTRIC CO., LTD. • CCB is SANYO’s original bus format and all the bus addresses are controlled by SANYO. |
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