TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC9328AF
Portable Audio DTS Controller (DTS-21)
TC9328AF
Th...
TOSHIBA
CMOS Digital Integrated Circuit Silicon Monolithic
TC9328AF
Portable Audio DTS Controller (DTS-21)
TC9328AF
The TC9328AF is a single-chip DTS microcontroller for portable audio incorporating 230 MHz prescaller, PLL, and LCD driver. In addition to a 20-bit IF counter, 6-bit A/D converter, serial interface, and buzzer function, the device supports an interrupt function, 8-bit timer/counter, and 8-bit pulse counter. The LCD driver features built-in 1/4 duty, 1/2 bias and a 3 V
voltage doubler boosting circuit, implementing stable LCD.
The power supply
voltage ranges from 0.9 to 1.8 V. Because of its low-current consumption (CPU: 80 µA (max)), the device is suitable for use in digital tuning systems in portable equipment such as headphone stereos.
Features
Weight: 0.45 g (typ.)
CMOS DTS microcontroller LSI with built-in 230 MHz prescaller, PLL, and LCD driver Operating
voltage: VDD = 0.9 to 1.8 V (typ.: 1.5 V) Current dissipation:
When CPU in operation: IDD = 40 µA (typ.) When PLL in operation: IDD = 6 mA (typ.) (VHF mode) Operating temperature range: Ta = −10 to 60°C Program memory (ROM): 16-bit × 8192 steps Data memory (RAM): 4-bit × 512 words Instruction execution time: 40 µs Crystal oscillator frequency: 75 kHz Stack level: 8 General-purpose IF counter: 20-bit (
CMOS input supported) A/D converter: 6-bit × 4 channel LCD driver: 1/4 duty, 1/2 bias, 88 segments (max) I/O port:
CMOS I/O ports: 12
N-channel open drain I/O ports: 24 (max) Outp...