The document is a product manual that describes the features and characteristics of a specific brand and model of product.
The EM78P156EH is an 8‑bit microprocessor with low‑power, high‑speed CMOS technology and a 1K×13‑bit One‑Time Programmable ROM. It includes protection and option bits, multiple I/O ports, a real‑time clock/counter, and various interrupt sources.
The document lists operating voltage and temperature ranges, power consumption figures, package options, pin assignments, functional block diagram, register descriptions, and AC electrical characteristics, enabling designers to integrate the device into their applications.
| Operating voltage range | 3.2 V ~ 5.5 V |
|---|---|
| Operating temperature range | 0 °C ~ 70 °C |
| OTP ROM size | 1 K × 13 bits |
| Typical power consumption at 5 V/4 MHz | < 1.6 mA |
| Instruction cycle | 99.9 % single‑instruction cycle |
The device operates from 3.2 V to 5.5 V.
The EM78P156EHP DIP package has 18 pins.
It provides a 1 K × 13‑bit OTP ROM.
Typical current consumption is less than 1.6 mA.