ML63326

www.DataSheet4U.com 8. Sep, 1998 ML63326 PRELIMINARY ML63326 4-Bit Microcontroller with built-in Voice Synthesis and 1024-Dot LCD Drivers GENERAL DESCRIPTION The ML63326 is a low power 4-bit microcontroller which incorporates the OKI original CPU core nX-4/250 and provides a minimum instruction execution time of 1µs (@2MHz). It contains 24K-word program memory, 1536-nibble data memory, 4-bit input port, four 4-bit output ports, five 4-bit and 2-bit input-output ports, shift register, LCD driver for up to 1024 segments, and voice synthesis, including 1 megabit mask ROM for speech data, a 12-bit D/A converter and low-pass filter internally. Speech ROM size can be expanded externally with further 4 megabits. The ML63326 is suitable for applications such as games, toys, clocks etc. which use an LCD display and voice synthesis. FEATURES Rich instruction set 439 instructions Transfer, rotate, increment, decrement, arithmetic operations, comparison, logic operations, mask operations, bit operations, ROM table reference, external memory transfer, stack operations, flag operations, branch, conditional branch, call/return, control. Rich selection of addressing modes Indirect addressing of four data memory types, with current bank register, extra bank register, HL register and XY register. Data memory bank internal direct addressing mode. Processing speed Two clocks per machine cycle, with most instructions executed in one machine cycle. Minimum instruction execution time : 61...