This document describes a new type of smart watch. This watch has the following features: 1. This watch is equipped with the latest processor, which is very powerful; 2. This watch is equipped with a high-resolution screen, which has a very clear display; 3. This watch adopts a lightweight design, which is very comfortable to wear; 4. This watch has rich functions and is very convenient to use.
The EM78P153S is an 8‑bit microprocessor built with low‑power CMOS technology. It integrates a 1024 × 13‑bit One‑Time‑Programmable ROM and offers protection and option bits for flexible configuration.
The document lists the device's features, electrical characteristics, pin assignments, functional block diagram, and package options, making it a comprehensive reference for designers and developers.
| Operating voltage range | 2.3V~5.5V |
|---|---|
| Temperature range | 0°C~70°C |
| On‑chip OTP ROM size | 1024 × 13 bits |
| Power consumption at 5V/4MHz | <1.5 mA |
| Package type | 14‑pin DIP and SOP |
The device operates from 2.3 V to 5.5 V.
It provides 7 programmable pull‑high pins, 7 programmable open‑drain pins, 6 programmable pull‑down pins, and 2 bi‑directional I/O ports.
The MCU is offered in a 14‑pin DIP (EM78P153SP) and a 14‑pin SOP (EM78P153SN) package.