MTU420

www.DataSheet4U.com MYSON TECHNOLOGY FEATURES MTU420 4-Bit Micro-Controller with LCD Driver, 2K Word Wide operating voltage range: Supply Voltage 4.5V to 5.5V 4V to 5V 2.4V to 3.3V 1.2V to 1.65V Cycle Time 122µs,280ns 122µs,280ns 122µs,2.2us 122µs Clock Usage dual clock dual clock dual clock slow clock only Remark Max. 3.58MHz Max. 3.58MHz Max. 455KHz 32.768KHz 118 instruction sets: - Binary addition, subtraction, BCD adjustment, logical operation in direct addressing mode and index addressing mode. - Single-bit manipulation (set, reset, decision for branch). - 4-bit input/output. - Various conditional branches. - 16 working registers and manipulation. - LCD driver data transfer. - Look-up table. - Programmable option. - System clock selection. 8-level subroutine nesting. Interrupt function: - External factor: 2 (INT pin or ports S, M). - Internal factor: 2 (timer, divider). ROM/RAM capacity: - ROM capacity . . . . . 2048 x 16 bits. - RAM capacity . . . . . 128 x 4 bits. Watchdog timer. Input/Output ports: - Input ports . . . . . 2 ports/8pins (S, M). - Output port . . . . . 1 port/4pins (P). - Pseudo serial output port . . . . . Also used for output port. - Input/Output ports . . . . . 2 ports/8pins (I/OA, I/OB). 2 control outputs . . . . . light, alarm. LCD driver output: - 26 LCD driver outputs (up to 156 LCD segments are drivable). - Mask option is used to select static ½ duty, ½ bias ½ duty, ½ bias 1/3 duty, ½ bias ¼ duty, 1/3 bi...