MSM6051

E2E0009-38-94 www.DataSheet4U.com ¡ Semiconductor ¡ Semiconductor MSM6051 GENERAL DESCRIPTION This version: Sep. 1998 MSM6051 Previous version: Mar. 1996 Built-in Melody Circuit and LCD Driver 4-Bit Microcontroller The MSM6051 is a low-power microcontroller manufactured in complementary metal-oxide semiconductor technology. Integrated into a single chip are ROM, RAM, crystal oscillator, voltage doubler, timer, melody circuit, LCD driver, input port, and output port. Using the on-chip ROM for application code reduces power consumption. The MSM6051 is widely used in electronic products requiring low-power operation, such as stopwatches with lap time memory, calculator watches, and handy terminals. FEATURES Low power consumption Internal ROM : 2560 ¥ 14 bits Internal RAM : 120 ¥ 4 bits Input port : 2 ports ¥ 4 bits, 1 port ¥ 1 bit Output port : 1 port ¥ 4 bits 4 ¥ 4 key matrix input is available by using K1 to K4 and M1 to M4 66 LCD drivers (including 3 commons) (1/3 duty, 1/3 bias, 189 segments) 59 instructions Minimum instruction execution time : 91.5 ms (Display instruction cycle : 183 ms) 1.5 V operating voltage (Can be changed to the lithium battery version by mask option) Melody function : Up to 512 notes can be played automatically (with an envelope) Lamp drivers Crystal oscillator : 32.768 kHz Chip (102 pads) 1/7 www.DataSheet4U.com ¡ Semiconductor BLOCK DIAGRAM DIN0 MELODY CIRCUIT ACC Main MPX BD DIN3 DOUT0 to to DATA RAM 120 ¥...