N567K081 DATA SHEET
1. GENERAL DESCRIPTION
The N567K081 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 N567K081 can
synthesize 6-channel speech & melody simultaneously.
The two channels of synthesized speech can be in different kinds of format, for example ADPCM
and MDPCM. The N567K081 can provide 6-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 N567K081 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 N567K081 is very suitable for high-quality and
sophisticated scenario applications.
The N567K081 provides 254KB ROM, 24 I/O pins, 384 bytes RAM, IR Tx carrier, Serial Interface
Manager (SIM), and S/W libraries to meet requirements from sophisticated applications like interactive
toys and educational applications. The N567K081 provides PWM mode audio output to save power
during playback and Watch Dog Timer to prevent from code runaway conditions.
Furthermore, the N567K081 enhances system ESD contact immunity, builds in LDO to drive
SpiFlash directly, and provides LVD and LVR options. It also has bandgap reference inside to control
deviation w.r.t. temperature within +/-3% for voltage references over 0C ~ 70C.
Publication Release Date: Jul. 2015
- 2 - Revision A1.5