Features: • 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 A (typ.)
When PLL in operation: IDD = 6 mA (typ.) (VHF mode)
• Operating temperature range: Ta = −10 to 60
• Program memory (ROM): 16-bit * 8192 steps
• Data memory (RAM): 4-bit * 512 words
• Instruction execution time: 40 s
• 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)
Output-only port: 1
Input-only ports: 5 (max)
• Timer/counter: 8-bit (as timer clock: INTR1/INTR2, instruction cycle: 1 kHz selectable)
• Pulse counter: 8-bit up/down counter (input via INTR2 pin)
• Buzzer: Built-in four mode: 0.625 to 3 kHz (8 types), Continuous, Single-Shot, 10 Hz Intermittent, or 10 Hz Intermittent 1 Hz Interval
• Package: QFP-80 (0.5 mm pitch, 1.4 mm thick)
Pinout
Specifications
|
Characteristics |
Symbol |
Rating |
Unit |
|
Supply voltage |
VDD |
−0.3~4.0 |
V |
|
Voltage doubler boosting voltage |
VDB |
−0.3~4.0 |
V |
|
Output voltage 1
(N-channel open drain) |
VO1 (*) |
−0.3~4.0 |
V |
|
Output voltage 2
(N-channel open drain) |
VO2 (*) |
−0.3~VDB + 0.3 |
V |
|
Output voltage 3
(N-channel open drain) |
VO3 (*) |
−0.3~VLCD + 0.3 |
V |
|
Input voltage |
VIN |
−0.3~VDD + 0.3 |
V |
|
Power dissipation |
PD |
100 |
mW |
|
Operating temperature |
Topr |
−10~60 |
|
|
Storage temperature |
Tstg |
−65~150 |
|
*: VO1: P3-0~P3-3, P6-0~P6-3, P7-0~P7-3 pin
VO2: P5-0~P5-3 pin
VO3: P8-0~P8-3, P9-0~P9-3 pinDescriptionThe 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 of TC9328AF from 0.9 to 1.8 V. Because of its low-current consumption (CPU: 80 A (max)), the device is suitable for use in digital tuning systems in portable equipment such as headphone stereos.
TC9328AF Data Sheet
