LC723481W Datasheet | SANYO

Overview The LC723481W, 723482W, and 723483W are lowvoltage electronic tuning radio microcontrollers that include a PLL that operates up to 250 MHz and a 1/4 duty 1/2 bias LCD driver on chip. These ICs include an on-chip DC-DC converter, making it is easy to create the supply voltages required for tuning and allowing cost reductions in end products. These ICs are optimal for use in low-voltage portable audio equipment that includes a radio receiver. Package Dimensions unit: mm 3190A-SQFP64 [LC723481W/2W/3W] 0.5 12.0 10.0 48 49 33 32 Function - Program memory (ROM): - 2048 × 16 bits (4K bytes) LC723481W - 3072 × 16 bits (6K bytes) LC723482W - 4096 × 16 bits (8K bytes) LC723483W - Data memory (RAM): - 128 × 4 bits LC723481W - 192 × 4 bits LC723482W - 256 × 4 bits LC723483W - Cycle time: 40 µs (all 1-word instructions) at 75k Hz crystal oscillation - Stack: 4 levels (8 levels) LC723481W(LC723482W/3W) - LCD driver: 48 to 80 segments (1/4 duty, 1/2 bias drive) - Interrupts: One external interrupt Timer interrupts (1, 5, 10, and 50 ms) - A/D converter: Three input channels (5-bit successive approximation conversion) - Input ports: 7 ports (of which 3 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 opendrain ports) Continued on next page. 64 1 (0.5) (1.25) (1.5) 17 16 0.18 0.15 1.7max 10.0 12.0 SANYO: SQFP64 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...