TC9322FB-603

**The TC9329AFAG/AFCG is a single-chip DTS microcontroller for portable

audio incorporating a 230-MHz prescaler, 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 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

• CMOS DTS microcontroller LSI with built-in 230 MHz prescaler, PLL, and LCD driver
• Operating voltage: VDD = 0.9~1.8 V (typ.: 1.5 V)
• Current dissipation:
CPU in operation: IDD = 40 µA typ.
PLL in operation: IDD = 6 mA typ. (VHF mode)
• Operating temperature range: Ta = −10~60°C
• Program memory (ROM): 16 bits × 4096 steps
• Data memory (RAM): 4 bits × 256 words
• Instruction execution time: With crystal oscillator: 40 µs
With CR oscillator: 6 µs
(at 1 MHz, VDD = 1.1~1.8 V)
• Crystal oscillator frequency: 75 kHz
• Stack level: 8
• General-purpose IF counter: 20 bit (CMOS input supported)
• A/D converter: 6 bits × 4-channels
• LCD driver: 1/4 duty, 1/2 bias, 72 segments (max)
• I/O port: CMOS I/O ports: 12
N-channel open drain I/O ports: 16 (max)
Output-only port: 1
Input-only ports: 3 (max)
• Timer/counter: 8 bits (as timer clock: INTR1/INTR2; instruction cycle: 1 kHz selectable)
• Pulse counter: 8-bit up/down counter (input via INTR2 pin)
Buzzer: 8 settings, 0.625~3 kHz; 4 built-in modes consisting of continuous, single-shot, 10 Hz intermittent, or
10 Hz intermittent at 1 Hz intervals.
• Interrupts: 2 external, 2 internal (serial interface, 8-bit timer)
• Package: QFP-64 (0.5-mm/0.65-mm pitch, 1.4-mm thickness)