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W566BXXX
3S/3HQ SPEECH+MELODY PROCESSOR
(BandDirector
TM
Series)
Publication Release Date: April 24, 2002
- 1 -
Revision A1
1. GENERAL DESCRIPTION
The W566Bxxx is a powerful embedded microcontroller (
μ
C) dedicated for speech and melody
synthesis application. This series IC is tailored for plush toy, educational toy or music instrument. With
the help of 16 bits microprocessor (
μ
P) W566-16, the W566Bxxx can synthesize multi-channel speech
and melody. 3-track of synthesized speech can be in different kinds of format, for example ADPCM
and MDPCM. Regarding synthesized melody, W566Bxxx can provide 2-track of Tone melody (T-
melody) plus 2-track percussion sound (2T+2Per), or 3-track of
High-Quality melody (HQ-melody)
that
can emulate the characteristics of musical instruments. These signals can be mixed flexibly through 4-
input Mixer to produce colorful effect. The result of Mixer is converted to analog signal to drive speaker
output.
W566Bxxx has two kinds of power saving modes: one is HOLD mode and the other is STOP mode. In
HOLD mode, the specific peripherals can be inactivated and IC can operate at the sub-clock.
Consequently, the W566Bxxx can perform some special tasks periodically. In STOP mode, all the IC's
peripherals are disable which is designated specially for try-me application. Besides, W566Bxxx can
sink 8mA at most for high-current application.
Following table depicts the W566Bxxx series.
PART#
W566B025
W566B030
W566B040
W566B060
W566B080
W566B100
W566B120
ROM (Byte)
94K
108K
126K
200K
254K
328K
382K
RAM (Byte)
256
256
256
256
256
256
256
Operating
Speed
8/4 MHz
8/4 MHz
8/4 MHz
8/4 MHz
8/4 MHz
4 MHz
4 MHz
Duration1
(sec)
25"
30"
36"
61"
80"
105"
124"
Duration2
(sec)
In : Bid
3
19”
23”
27”
46”
60”
79”
93”
4 : 16
4 : 16
4 : 16
4 : 16
4 : 16
0 : 16
0 : 16
Speaker
DAC
DAC
DAC
DAC
DAC
DAC
DAC
Mixer Inputs
Speech Tracks
4
4
4
4
4
4
4
4
3
3
3
3
3
3
3
Speech
Algorithms
ADPCM
MDPCM
PCM
ADPCM
MDPCM
PCM
ADPCM
MDPCM
PCM
ADPCM
MDPCM
PCM
ADPCM
MDPCM
PCM
ADPCM
MDPCM
PCM
ADPCM
MDPCM
PCM
Melody Tracks
3
3
3
3
3
3
3
Instrument
Types
HQ
Tone
Voice
HQ
Tone
Voice
HQ
Tone
Voice
HQ
Tone
Voice
HQ
Tone
Voice
HQ
Tone
Voice
HQ
Tone
Voice
IR-Carrier
ü
ü
ü
ü
ü
ü
ü
Number of
System Clocks
2
2
2
2
2
2
2
Power
Management
HOLD
STOP
HOLD
STOP
HOLD
STOP
HOLD
STOP
HOLD
STOP
HOLD
STOP
HOLD
STOP