General Description
The MSu001 is a monolithic talking microcomputer that can memorize voice up to 22 seconds using MOSEL qualified coding method(MPCM). Its an integration of traditional 4-bit microcomputer and voice chip with minimal external components. LCD driver and miscellaneous interface are provided for versatile applications. With more than 10K ROM/RAM inside, this chip meets every intelligent novelty. Customer requested function and voice data will be built in by changing masks during fabrication.

Hardware Features
■ Low current consumption
■ Maximal function with minimal cost
■ Current output could drive 8 ohm speaker with a transistor, Vout could drive buzzer directly.
■ The voice content is stored up to 20 seconds at 6 KHz S.R. and can be separated up to 64 sections. 22 seconds at 5.51 KHz sample rate (1DA00h)
■ LCD driver provided, can drive up to 75 segments
■ Built-In clock generator
■ Built-In doubler, halver, tripler
■ Internal program ROM : 1024 x 15 bits; Internal program RAM : 64 x 4 bits
■ Two 4-bit input ports
■ Two 4-bit input/output ports
■ One 4-bit output port

Software Features
■ 78 instructions, in 48 categories
■ 4-level subroutine nesting (also used for interrupt)
■ Two external factors (INT, S&M) for interrupt
■ Two internal factors (timer, divider) for interrupt

Sample Applications
■ handy game with LCD
■ versatile timepiece with LCD
■ talking timer with LCD
■ intelligent calculator with LCD
■ smart stationery with LCD
■ talking home electronics with LCD
■ talking education kit with LCD