MSM64162D Datasheet | OKI Electric

DESCRIPTION The MSM64162D is a low power 4-bit microcontroller that employs Oki's original CPU core n X4/20. The MSM64162D has 1-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 thermometers and clinical thermometers. FEATURES - Operating range Operating frequencies Operating voltage : : 32.768 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 Data Shee Operating temperature : - Memory space Internal program memory : 2016 bytes . Internal data memory : 128 nibbles - Minimum instruction execution time : 91.6 ms @ 32.768 k Hz - RC oscillation type A/D converter : 1 channel (2 sensors can be connected) - LCD driver : 24 outputs; duty ratio switchable by software (1) At 1/4 duty and 1/3 bias : 80 segments (max) (2) At 1/3 duty and 1/3 bias : 63 segments (max) (3) At 1/2 duty and 1/2 bias : 44 segments (max) - Buzzer driver : 1 output (4 output modes selectable) - Capture circuit : 2 channels - Watchdog timer - Clock : 32.768 k Hz crystal oscillator CPU clock : 32.768 k Hz Time base clock : 32.768 k Hz - Power supply voltage : 1.5 V/3 V (selectable by mask option) - I/O port Input-output port : 2 ports - 4 bits Input port : 1 port - 4 bits Output port : 1 port - 4 bits (8 out of the 24 LCD driver outputs can be used as output-only ports by mask option.) - Interrupt sources External interrupt : 2 sources Internal interrupt : 7 sources - Battery check circuit : 1 (incorporated into the input-only port) . . Data Sheet 4 U . 1/37 .. ¡ Semiconductor - Package options: 64-pin plastic QFP (QFP64-P-1420-1.00-BK) : (Product name : MSM64162D-- - GS-BK) 80-pin plastic QFP (QFP80-P-1420-0.80-BK) : (Product name : MSM64162D-- - GS-BK-F) Chip : (Product name : MSM64162D-- - ) - - indicates a code number. et4U. Data Shee . . . Data Sheet 4 U . 2/37 .. ¡ Semiconductor BLOCK...