SPC500A3 Sunplus Technology Co., Ltd., SPC500A3 Datasheet - Page 3

• Manufacturer Part Number: SPC500A3
• Description: 512KB SOUND CONTROLLER
• Manufacturer: Sunplus Technology Co., Ltd.

512KB SOUND CONTROLLER
1. GENERAL DESCRIPTION
The SPC500A3 is a CPU based two-channel speech/melody
synthesizer including CMOS 8-bit microprocessor with 69
instructions, 512K-byte ROM for speech and melody data (Speech
is compressed by a 4-bit ADPCM with approx. 170 sec speech
duration @ 6KHz sampling rate) and 128-byte working SRAM. It
includes two Timer/Counters, 23 Software Selectable I/Os, two
8-bit current outputs D/A (or one PWM audio output) and serial
interface I/O port. It provides Multi-Duty-Cycle output for remote
control purposes. For audio processing, melody and speech can
be mixed into one output. It operates over a wide voltage range
of 2.4V - 5.5V and includes Low Voltage Reset function. The Low
Voltage Reset automatically resets when the working voltage is
less than 2.2V.
SPC500A3 has a Clock Stop mode for power savings.
power savings mode saves the RAM contents, but freezes the
oscillator, causing all other chip functions to be inoperative. The
Max. CPU clock frequency is 8.0MHz. It has an Instruction Cycle
Rate of 2 clock cycles (min.) - 6 clock cycles (max.).
SPC500A3 includes, not only the latest technology, but also the
full commitment and technical support of Sunplus.
2. BLOCK DIAGRAM
© Sunplus Technology Co., Ltd.
Proprietary & Confidential
XO
Rosc
XI
IOA3-0
(I/O)
controller
OSC
CLK
RISC
8-bit
Volume control is provided.
23
512K-byte
PINS
128-byte
SRAM
IOB3-0
ROM
Voltage
(I/O)
Reset
Low
GENERAL
IOC6-0
(I/O)
I/O
Serial interface I/O
PORT
PWM output
Two Timers
INT control
TimeBase
8-bit D/A
(current)
Two
or
IOD7-0
In addition, the
(I/O)
The
The
AUD1
AUD2
3
3. FEATURES
4. APPLICATION FIELD
Intelligent education toys
Ex. Pattern to voice (animal, car, color, etc.)
High end toy controller
Talking instrument controller
General speech synthesizer
Industrial controller
8-bit microprocessor
Provides 512K-byte ROM for program and audio data
128-byte working SRAM
Software-based audio processing
Wide operating voltage: 2.4V - 3.6V @ 5.0MHz
Supports Crystal Resonator or Rosc (with Mask option)
Max. CPU clock: 5.0MHz @ 2.4V - 3.6V
Two 12-bit timer/counters
Standby mode (Clock Stop mode) for power savings.
Max. 2 A @ 5.0V
500ns instruction cycle time @ 4.0MHz CPU clock
6 INT sources
Key wake-up function
Provides 23 general I/Os
Serial interface I/O
@ 6KHz sampling rate with 4-bit ADPCM
One PWM audio output (single speaker)
Two DA output
Multi-duty cycle mode
Low voltage reset
Volume control function
Approx. 170 sec speech
Spelling (English or Chinese)
Math
8.0MHz @ 3.6V - 5.5V
3.6V - 5.5V @ 8.0MHz
SPC500A3
JUL. 30, 2001
Version: 1.0