MSM64162 Datasheet | OKI Electric

DESCRIPTION The MSM64162 is a low power 4-bit microcontroller that employs Oki's original CPU core n X4/20. The MSM64162 has 2-channel RC oscillation type A/D converter, LCD driver for up to 80 segments, and buzzer output port. It is best suited for applications such as low power, high precision thermometers and hygrometers. 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 2016 bytes 128 nibbles 7.5 ms @ 400 k Hz 91.6 ms @ 32.768 k Hz 2 channels 24 outputs; duty ratio switchable by software 80 segments (max) 63 segments (max) 44 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) 2 ports - 4 bits 1 port - 4 bits 1 port - 4 bits (8 out of the 24 LCD driver outputs can be used as output-only ports by mask option.) 2 sources 7 sources 1 (incorporated into the input-only port) Operating temperature - Memory space Internal program memory Internal data memory - Minimum instruction execution time - RC oscillation type A/D converter - 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 : : : : : : : : : : : : : : : : : : - Interrupt sources External interrupt Internal interrupt - Battery check circuit : : : 1/39 ¡ Semiconductor - Package options: 64-pin plastic QFP (QFP64-P-1420-1.00-BK) : (Product name : MSM64162-- - - GS-BK) 80-pin plastic QFP (QFP80-P-1420-0.80-BK) : (Product name : MSM64162-- - - GS-BK-F) Chip : (Product name : MSM64162-- - - ) - - - indicates a code number. 2/39 ¡ Semiconductor BLOCK DIAGRAM CPU CORE: n...