Product Summary

The LC72318W-9C88-TRM-E is an ultralow-voltage (0.9 to 1.8 V) electronic tuning microcontroller that includes a PLL that operates up to 250 MHz and a 1/4 duty 1/2 bias LCD driver on chip. The LC72318W-9C88-TRM-E includes an on-chip DC-DC converter that can easily create the power supply voltages needed for electronic tuning and contribute to reducing end product costs. The LC72318W-9C88-TRM-E is optimal for portable audio equipment that must operate from a single battery.

Parametrics

LC72318W-9C88-TRM-E absolute maximum ratings: (1)VDD1 max VDD: –0.3 to +3.0 V; (2)Maximum supply voltage VDD3 max VDDRAM: –0.3 to +4.0 V; (3)VDD4 max VDC3: –0.3 to +4.0 V; (4)Input voltage VIN1 FMIN, AMIN, HCTR: –0.3 to VDD1 +0.3 V; (5)VIN2 PA, PC, PD, PF, PG, PH, PI, PJ, PL, BRES: –0.3 to VDD1 +0.3 V; (6)VOUT1 PE: –0.3 to +7 V; (7)Output voltage VOUT2 PB, PC, PD, PG, PH, PI, PJ, PK, PL: –0.3 to VDD1 +0.3 V; (8)VOUT3 VDC1, EO:–0.3 to VDD4 +0.3 V; (9)VOUT4 COM1 to COM4, S1 to S28: –0.3 to VDD4 +0.3 V; (10)IOUT1 PC, PD, PG, PH, PI, PJ, PK, PL, EO: 0 to 3mA; (11)IOUT2 PB: 0 to 1 mA; (12)Output current IOUT3 PE: 0 to 2mA; (13)IOUT4 S1 to S28: 300μA; (14)IOUT5 COM1 to COM4: 3mA; (15)Allowable power dissipation Pdmax Ta = –10 to +60℃: 100mW; (16)Operating temperature Topr: –10 to +60℃; (17)Storage temperature Tstg: –45 to +125℃.

Features

LC72318W-9C88-TRM-E features: (1)Program memory (ROM); (2)Data memory (RAM); (3)Cycle time: 40μs (all 1-word instructions); (4)Stack: 8 levels; (5)LCD driver: 48 to 112 segments (1/4 duty, 1/2 bias drive); (6)Interrupts: Two external interrupts Timer interrupts (1, 5, 10, and 50ms); (7)A/D converter: Four input channels (6-bit successive approximation conversion); (8)Input ports: 11 ports (of which three can be switched for use as A/D converter inputs); (9)Output ports: 8 ports (of which 1 can be switched for use as the beep tone output and 4 are open-drain ports); (10)I/O ports: 29 ports (of which 16 can be switched for use as LCD ports and as mask options, of which 3 can be switched for use as serial I/O ports); (11)Serial I/O: One system (LC72315W/72316W); (12)PLL: Reference frequencies: 1, 3, 3.125, 5, 6.25, 12.5, and 25 kHz; (13)Input frequencies: FM band: 10 to 250 MHz, AM band (high): 2 to 20 MHz, AM band (low): 0.5 to 10 MHz; (14)Input sensitivity: FM band: 35mVrms (130 MHz to 250 MHz: 50mVrms), AM band (high, low): 35mVrms; (15)IF counter: HCTR input pin 0.4 to 15 MHz (35mVrms); (16)External reset input: During CPU and PLL operations, instruction execution is started from location 0.

Diagrams

LC72318W-9C88-TRM-E Pin Configuration

LC72121
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0-1: $2.46
1-25: $2.21
25-100: $2.02
100-250: $1.82
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