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LC72345W Datasheet(PDF) 1 Page - Sanyo Semicon Device |
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LC72345W Datasheet(HTML) 1 Page - Sanyo Semicon Device |
1 / 13 page Ordering number : ENN6171 31000RM (OT) No. 6171-1/13 Overview The LC72344W and LC72345W are low-voltage electronic tuning microcontrollers that include a DC-DC converter, a PLL that operates up to 230 MHz, a 1/4 duty 1/2 bias LCD driver and other functions on chip. The built-in DC-DC converter provided by these ICs can easily implement a tuning system voltage generator circuit, and furthermore, since the transistor required for the low-pass filter is built in, these ICs can contribute to further end product cost reductions. Additionally, the DC-DC converter output voltage can be provided to other external ICs, making these products optimal for low-voltage portable audio equipment that includes a radio receiver. Functions • Program memory (ROM): 3072 × 16 bits (6 KB) LC72344W 4096 × 16 bits (8 KB) LC72345W • Data memory (RAM): 192 × 4 bits LC72344W 256 × 4 bits LC72345W • Cycle time: 40 µs (all 1-word instructions) • Stack: 8 levels • LCD driver: 48 to 76 segments (1/4 duty, 1/2 bias drive) • Interrupts: One external interrupt Timer interrupts (1, 5, 10, and 50 ms) • A/D converter: Two input channels (5-bit successive approximation conversion) • Input ports: 6 ports (of which 2 can be switched for use as A/D converter inputs) • Output ports: 6 ports (of which 1 can be switched for use as the beep tone output and 2 are open- drain ports) • I/O ports: 16 ports (of which 8 can be switched for use as LCD ports as mask options) (Continued on next page.) LC72344W, 72345W SANYO Electric Co.,Ltd. Semiconductor Company TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN Low-Voltage ETR Controller with On-Chip DC-DC Converter CMOS IC Any and all SANYO products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft’s control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult with your SANYO representative nearest you before using any SANYO products described or contained herein in such applications. SANYO assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all SANYO products described or contained herein. Package Dimensions unit: mm 3190-SQFP64 1.25 0.5 1.25 0.18 12.0 116 17 32 33 48 49 64 10.0 0.5 0.5 0.15 SANYO: SQFP64 [LC72344W, 72345W] |
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