Toshiba TC9349AFG Manual

TC9349AFG2006-02-241TOSHIBA CMOS Digital Integrated Circuit Silicon MonolithicTC9349AFGSingle-Chip DTS Microcontroller (DTS-21)The TC9349AFG is a single-chip DTS microcontroller for portable audioincorporating a 30 MHz prescaler, PLL, and LCD driver. In addition to anIF counter, serial interface and buzzer function, the device incorporates aninterrupt function, timer counter, pulse counter, electronic volume functionand A/D converterThe device also supports selection of 1/4-duty 1/2 bias or 1/4-duty 1/3bias for the LCD driver, while a built-in 3 V voltage doubler boostingcircuit implements stable operation of the LCD monitor.The power supply voltage ranges from 0.9 V to 1.8 V. Due to itslow-current consumption, the device is suitable for use in digital tuningsystems in portable equipment such as headphone stereos.Features• CMOS DTS microcontroller LSI with built-in prescaler PLL and LCD driver• Operating voltage range: VDD = 0.9 to 1.8 V (typ.: 1.5 V)• Current dissipation: With CPU in operation: IDD = 150 μA (typ.)With PLL in operation: IDD = 1 mA (typ. At inputting OSCin = 30 MHz)• Operating temperature range: Ta = −10 to 60°C• Program memory (ROM): 16-bit × 8192 steps• Data memory (RAM): 4-bit × 512 words• Oscillator frequency: Crystal oscillator: 75 kHz (crystal oscillator)High-speed oscillator: 300 to 600 kHz (ceramic oscillator or crystal oscillator)• Instruction execution time: Crystal oscillator: 40 μsHigh-speed oscillator: 5 to 10 μs• Interrupt: External: 2 system (INTR1, INTR2 pin)Internal: 4 system (serial-interface, timer-port, timer-counter, decreased voltagedetection)• Interrupt stack: 4 level × 26 bit G-register, Data select, Carry flag, Data register• Address stack: 16 level × 13 bit (program counter)• I/O port: CMOS I/O port: 36 (max)N-ch open-drain I/O port: 9 (max)Exclusive output port: 2 (max), exclusive input port: 1 (max)• LCD driver: 1/4 duty, 1/2 bias or 1/4 duty, 1/3 bias: 72 segments (max)• Serial Interface: 1 system, 2 channel (N-ch open-drain, CMOS I/O port), 3 kinds (3-wired, 2-wired,UART)• Buzzer: 4 kinds of frequency (1 kHz, 1.56 kHz, 2.08 kHz, 3 kHz),4 modes (continuous, single-shot, 10 Hz intermittent, 10 Hz intermittent 1 Hz interval)• Timer counter: 8 bit, 2 kinds of timer clock (25 kHz, 1 kHz),2 modes (timer counter, pulse width measure (INTR1 pin))• Pulse counter: 8 bit up/down counter• Electronic volume: 2 channel, 32 step (0 dB to −78 dB, −∞dB)• A/D converter: 6 bit, 4 channel, conversion time: 240 μs• Amplifier for LPF: 5.5 V output max. (Tout, Tin)• DC/DC converter of VT: 2 stage (0.75 V, 1.0 V) voltage detected (VDET)15 kinds of doubler clock, 2 types of doubler clock output(CMOS output: DDCK2, N-ch output: DDCK1)Weight: 0.32 g (typ.)