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FRAM MCUKey Strengths and Applications

Introduction
Ferroelectric Random Access Memory (FRAM) microcontroller (MCU), which features embedded, non-volatile FRAM, is part of the company’s 8-bit microcontroller 8FX family. The new embedded FRAM memory technology can be configured either as Read-Only Memory (ROM) or Random- Access Memory (RAM). The FRAM microcontroller has the added benefits of high-speed programming and low power consumption. The FRAM memory technology, its benefits, applications, tools, and software configuration are described below. FRAM Memory Technology

Introduction to FRAM
FRAM is a non-volatile memory that uses a ferroelectric thin film capacitor to store data. The electronic dipoles are formed in the crystal structure of PZT(FER) shown in Figure 1. When ferroelectric characteristics exhibit a hysteresis loop, FRAM can achieve a much higher dielectric constant than any other linear characteristics. A normal capacitor is based on C-V characteristics. However, because the ferroelectric capacitor shifts the positions of atoms, it is described in terms of its P-V characteristics.