EM78P153E is a low-power, high-performance 8-bit microprocessor in the EM78 series, manufactured using CMOS technology. It has a 512*13-bit Electrical One Time Programmable Read Only Memory (OTP-ROM), which provides a protection bit to prevent intrusion of user’s code in the OTP memory as well as 15 OPTION bits to match user’s requirements.
The EM78P153E is a low‑power 8‑bit microcontroller with a 512 × 13‑bit one‑time programmable ROM. It includes built‑in oscillators, multiple I/O pins, a real‑time clock/counter, and various programmable registers, making it suitable for compact embedded applications.
The datasheet provides a complete description of the device, including its features, package options, pin assignments, functional block diagram, register set, program counter organization, electrical specifications, and programming guidelines.
| Operating voltage range | 2.3 V ~ 5.5 V |
|---|---|
| Operating temperature range | 0 °C ~ 70 °C |
| On‑chip OTP ROM size | 512 × 13 bits |
| Package pin count | 14 pins |
| Low‑power consumption at 5 V/4 MHz | < 1.5 mA |
| Typical standby current at 3 V/82 kHz | 15 pA |
| Clock duty cycle (DCLK) | 45 % ~ 55 % |
| Device reset hold time (Tdrh) | 9 ms ~ 30 ms |
| RESET pulse width (Trst) | 2000 ns |
| Watchdog timer period (Twdt) | 45 ms ~ 72 ms |
The device operates from 2.3 V up to 5.5 V.
It is available in 14‑pin DIP and SOP packages.
Typical standby current is 15 pA at 3 V and 82 kHz.
Current consumption is less than 1.5 mA under those conditions.