MSM64158A Datasheet | OKI Electric

DESCRIPTION This version: Sep. 1998 MSM64158A/64158AL Previous version: Mar. 1996 4-Bit Microcontroller with Built-in LCD Driver and Melody Circuit The MSM64158A (1.5 V)/64158AL (3.0 V) is a high-performance 4-bit microcontroller that incroporates Oki-original CPU core n X-4/20. The MSM64158A/64158AL has an LCD driver for up to 144 segments, an event counter, and a melody circuit. It is best suited for applications such as clocks and LCD games. FEATURES - Operating range Operating voltage Operating temperature Operating frequency Supply current (Typ.) - Minimum instruction execution time - General memory space - Local memory space - LCD drivers : 1.5 V/3.0 V : - 40 to +70°C : 32.768 k Hz crystal oscillation Approx. 32 k Hz RC oscillation : 0.9 µ A (3.0 V at HALT mode) : 91 µs : 2528 bytes : 128 nibbles : 40 mon 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) : 1 port - 4 bits (open drain output/CMOS output selectable; pull-down resistor input/highimpedance input selectable) : 1 port - 2 bits (pull-down resistor input /highimpedance input selectable) 1 port - 4 bits (pull-down resistor input/highimpedance input selectable) : 1 : 1 : 7 sources (external 3, time base 3, melody 1) - I/O port Input-output port Input port - Event counter - Melody output - Interrupts - Package: 64-pin plastic QFP (QFP64-P-1414-0.80-BK): (Product name : MSM64158A-- - - GS-BK, MSM64158AL-- - - GS-BK) Chip : MSM64158A-- - - , MSM64158AL-- - - - - - indicates a code number. - OTP version (for program evaluation) : MSM64P155/64P155L (The packages, power polarity, and operating voltage of the MSM64P155/64P155L are different from the MSM64158A/64158AL. For details, refer to the "MSM64P155 User's Manual".) 1/25 ¡ Semiconductor MSM64158A/64158AL BLOCK DIAGRAM C2 C1 VSS3 VSS2 VSS1 BIAS TR2 TR0...