ML63512A

E2E0057-29-71 ¡ Semiconductor ML63512A/63514A ¡ Semiconductor This ML63512A/63514A version: Jul. 1999 Previous version: Jun. 1999 4-Bit Microcontroller with Built-in Level Detector, Melody Circuit, and Comparator, Operating at 0.9 V (Min.) GENERAL DESCRIPTION The ML63512A/63514A is a CMOS 4-bit microcontroller with built-in level detector and operates at 0.9 V (min.). The ML63512A/63514A is an M6351x series mask ROM-version product of OLMS-63K family, which employs Oki's original CPU core nX-4/250. The program memory capacity and data memory capacity of the ML63512A differ from those of the ML63514A. 48-pin TQFP and 64-pin TQFP packages are available for the ML63512A and ML63514A. FEATURES Extensive instruction set 407 instructions Transfer, rotate, increment/decrement, arithmetic operations, comparison, logic operations, mask operations, bit operations, ROM table reference, stack operations, flag operations, jump, conditional branch, call/return, control. Wide variety 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 ms (@ 32.768 kHz system clock) 1 ms (@ 2 MHz system clock) Clock generation circuit Low-speed clock High-speed clock : Crystal oscillation or RC oscillation...