MSM64164C Datasheet | OKI Electric

DESCRIPTION The MSM64164C is a low power 4-bit microcontroller that employs Oki's original CPU core n X4/20. The MSM64164C is best suitable for applications such as low power, high precision thermometers and hygrometers. The MSM64P164 is a one-time-programmable ROM-version product having one-time PROM (OTP) as internal program memory. The MSM64P164 is used to evaluate the software development. The MSM64P164 differs from the MSM64164C in the polarity of the power supply. FEATURES - Operating range Operating frequencies Operating voltage : : 32.768 k Hz, 400 k Hz 1.25 to 1.7 V (1.5 V spec.) 2.0 to 3.5 V (3 V spec.) 2.2 to 3.5 V (3 V spec., 1/2 duty) - 40 to +85°C 4064 bytes 256 nibbles 7.5 ms @ 400 k Hz 91.6 ms @ 32.768 k Hz 2 channels Time dividing 2-channel method Synchronous 8-bit transfer 34 outputs; duty ratio switchable by software 120 segments (max) 93 segments (max) 64 segments (max) 1 output (4 output modes selectable) 2 channels 32.768 k Hz crystal oscillator and 400 k Hz RC oscillator (with an external resistor) 32.768 k Hz/400 k Hz (switchable by software) 32.768 k Hz 1.5 V/3 V (selectable by mask option) 3 ports - 4 bits 1 port - 4 bits 1 port - 4 bits (8 out of the 34 LCD driver outputs can be used as output-only ports by mask option.) 1/41 Operating temperature - Memory space Internal program memory Internal data memory - Minimum instruction execution time - RC oscillation type A/D converter - Serial port - LCD driver (1) At 1/4 duty and 1/3 bias (2) At 1/3 duty and 1/3 bias (3) At 1/2 duty and 1/2 bias - Buzzer driver - Capture circuit - Watchdog timer - Clock CPU clock Time base clock - Power supply voltage - I/O port Input-output port Input port Output port : : : : : : : : : : : : : : : : : : : ¡ Semiconductor - Interrupt sources External interrupt : 2 sources Internal interrupt : 8 sources - Package options: 80-pin plastic QFP (QFP80-P-1420-0.80-BK) : (Product name : MSM64164C-- - - GS-BK) 80-pin plastic QFP (QFP80-P-1414-0.65-K) : (Product name...