MSM64155A Description
1998 MSM64155A/64155AL Previous version: 1996 4-Bit Microcontroller with Built-in LCD Driver and Melody Circuit The MSM64155A (1.5 V)/64155AL (3.0 V) is a high-performance 4-bit microcontroller that incorporates Oki-original CPU core nX-4/20. The MSM64155A/64155AL has an LCD driver for up to 240 segments, an event counter, and melody circuits.
MSM64155A Key Features
- Operating range Operating voltage Operating temperature Operating frequency
- Minimum instruction execution time : 91 ms
- General memory space : 4064 bytes
- Local memory space : 256 nibbles
- LCD driver : 64 mon driver
- 4 Segment driver
- 60 1/4 duty, 1/3 bias; 240 segments (60
- 4) 1/3 duty, 1/3 bias; 180 segments (60
- 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 :