N567HXXX

Publication Release Date: Feb. 2014

- 2 -

Revision A12

1. GENERAL DESCRIPTION

The N567Hxxx is a powerful microcontroller (uC) dedicated to speech and melody synthesis

applications. With the help of the embedded 8-bit microprocessor & dedicated H/W, the N567Hxxx can

synthesize 8-channel speech+melody simultaneously.

The two channels of synthesized speech can be in different kinds of format, for example ADPCM

and MDPCM. The N567Hxxx can provide 8-channel high-quality wavetable melody, which can emulate

the characteristics of musical instruments, such as piano and violin. More colorful melody effects are

implemented in N567Hxxx series, such as modulation, vibrato, and pitch-bending etc. The output of

speech/melody channels are mixed together through the on-chip digital mixer to produce colorful

effects. With these hardware resources, the N567Hxxx is very suitable for high-quality and

sophisticated scenario applications.

The N567Hxxx provides at most 32 I/O pins, 384 bytes RAM , IR carrier, Serial Interface

Management (SIM), and more sophisticated applications, such as interactive toys, cartridge toys and

final count down function. 3-pair LED output pins with 64-level control means that numerous

combination of RGB colors may result in a versatility of colorful effects. In addition, N567Hxxx also

provides PWM mode audio output to save power during playback and Watch Dog Timer to prevent

latch-up situation occurring.

The N567Hxxx family contains several items with different playback duration as shown below:

(@4-bit NM4 algorithm, 6 KHz sampling rate)

Item

N567H030

N567H041

N567H080

N567H120

N567H160

N567H200

*Duration

34 sec.

44 sec.

84 sec.

124 sec.

158 sec.

192 sec.

Item

N567H240

N567H280

N567H330

**N567H121

**N567H161

**N567H201

*Duration

233 sec.

272 sec.

311 sec.

124 sec.

158 sec.

192 sec.

Note: *: The duration time is based on 4-bit NM4 at 6 KHz sampling rate. The firmware library and timber library have

been ex

cluded from user’s ROM space for the duration estimation.

Note: **: N567H121/161/201 are modified from N567H120/160/

200 respectively to consist with OTP’s pad sequence.