SPC08A datasheet(3/15 Pages) ETC

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SPC08A

6.5KB SOUND CONTROLLER

1. GENERAL DESCRIPTION

The SPC08A is a CPU based one-channel speech/melody

synthesizer including CMOS 8-bit microprocessor with 69

instructions, 6.5K-byte ROM for speech and melody data (Speech

is compressed by a 4-bit ADPCM with approx. 2 sec speech

duration @ 7KHz sampling rate) and 64-byte working SRAM. It

includes one Timer/Counter, 18 Software Selectable I/Os and one

audio current output (D/A). For audio processing, melody and

speech can be mixed into one output. It operates over a wide

voltage range of 2.4V - 5.5V. In addition, the SPC08A has a

Clock Stop mode for power saving. The power saving mode

saves the RAM contents, but freezes the oscillator, causing all

other chip functions to be inoperative.

The Max. CPU clock

frequency is 3.0MHz. It has an Instruction Cycle Rate of 2 clock

cycles (min.) - 6 clock cycles (max.). The SPC08A includes, not

only the latest technology, but also the full commitment and

technical support of Sunplus.

2. BLOCK DIAGRAM

8-bit

microprocessor

6.5K-byte

ROM

64-byte

SRAM

One Timer

TimeBase

INT control

ONE

8-bit D/A

(current)

PINS

GENERAL

I/O

PORT

RESET

CLK

OSC

AUD1

AUD2

IOB5-0

(I/O)

IOC5-0

(I/O)

IOD5-0

(I/O)

RESET

Rosc

3. FEATURES

8-bit microprocessor

Provides 6.5K-byte ROM for program and audio data

64-byte working SRAM

Software-based audio processing

Wide operating voltage: 2.4V - 3.6V @ 1.5MHz

3.6V - 5.5V @ 3.0MHz

Supports Crystal Resonator or Rosc (with Bonding option)

Max. CPU clock: 1.5MHz @ 3.0V, 3.0MHz @ 5.0V

Standby mode (Clock Stop mode) for power saving.

Max. 2

µA @ 5.0V

500ns instruction cycle time @ 4.0MHz CPU clock

Provides 18 general I/Os

One 12-bit timer/counter

4 INT sources

Key wake-up function

Approx. 2 sec speech

@ 7KHz sampling rate with ADPCM

4. APPLICATION FIELD

Intelligent education toys

Ex. Pattern to voice (animal, car, color, etc.)

Spelling (English or Chinese)

Math

Toy controller

Talking instrument controller

General speech synthesizer

Industrial controller

Proprietary & Confidential

SEP. 19, 2001

Version: 1.7

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