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MSM64162 Datasheet(PDF) 1 Page - OKI electronic componets |
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MSM64162 Datasheet(HTML) 1 Page - OKI electronic componets |
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1 / 39 page  1/39 ¡ Semiconductor MSM64162 ¡ Semiconductor MSM64162 4-Bit Microcontroller with Built-in RC Oscillation Type A/D Converter and LCD Driver GENERAL DESCRIPTION The MSM64162 is a low power 4-bit microcontroller that employs Oki's original CPU core nX- 4/20. 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 : 32.768 kHz, 400 kHz Operating voltage : 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) Operating temperature : –40 to +85 °C • Memory space Internal program memory : 2016 bytes Internal data memory : 128 nibbles • Minimum instruction execution time : 7.5 ms @ 400 kHz 91.6 ms @ 32.768 kHz • RC oscillation type A/D converter : 2 channels • 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 kHz crystal oscillator and 400 kHz RC oscillator (with an external resistor) CPU clock : 32.768 kHz/400 kHz (switchable by software) Time base clock : 32.768 kHz • 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) E2E0033-38-93 This version: Sep. 1998 Previous version: Mar. 1996 |
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