MSM64153A

E2E0029-38-95 ¡ Semiconductor MSM64153A/64153AL ¡ Semiconductor This version: Sep. 1998 MSM64153A/64153AL Previous version: Mar. 1996 4-Bit Microcontroller with Built-in LCD Driver and Melody Circuit GENERAL DESCRIPTION The MSM64153A (1.5 V)/64153AL (3.0 V) is a high-performance 4-bit microcontroller that incorporates Oki-original CPU core nX-4/20. The MSM64153A/64153AL has an LCD driver for up to 144 segments, an event counter, and melody circuits. It is best suited for applications such as clocks and LCD games. FEATURES Operating range Operating voltage Operating temperature Operating frequency : 1.5 V/3.0 V : –40 to +70 °C : 32.768 kHz crystal oscillation Approx. 32 kHz RC oscillation Supply current (Typ.) : 0.9 mA (3.0 V at HALT mode) Minimum instruction execution time : 91 ms General memory space : 3040 bytes Local memory space : 160 nibbles LCD driver : 40 Common driver ¥ 4 Segment driver ¥ 36 1/4 duty, 1/3 bias; 144 segments (36 ¥ 4) 1/3 duty, 1/3 bias; 108 segments (36 ¥ 3) I/O port Input-output port : 2 ports ¥ 4 bits (open-drain output/CMOS output selectable; pull-down resistor input/high-impedance input selectable) Input port : 1 port ¥ 2 bits (pull-down resistor input/high-impedance input selectable) 1 port ¥ 4 bits (pull-down resistor input/high-impedance input selectable) Event counter : 1 channel Melody output :2 Interrupts : 10 sources External 4, time base 4, melody 2 Package: 80-pin plastic QFP (QFP80-P-1420-0.80-BK) : (Product name...