Applications
Case Study; FeRAM in Ticket Vending Machines
FeRAM is used to store data in increasingly sophisticated ticket vending machines：
Protecting data with high-frequency writing and quick recovery in case of trouble
Ticket vending machines need to record daily transactions frequently and must be able to recover data quickly in case of emergency; FeRAM is used in ticket vending machines because it can be rewritten an extremely large number of times and retains data even when power is lost, contributing to quick recovery.
Table of Contents
What is Required for Memory in Ticket Vending Machine
Ticket vending machines, which are widely used for transportation, entertainment, and other purposes, perform transactions with many customers every day. The transaction data includes ticketing histories, bill and coin payment histories, and other information related to customers' valuable money. Therefore, the recording of data must be highly reliable, especially in emergency situations such as unexpected system downtime or power failure. The excellent characteristics of FeRAM (ferroelectric memory) are of great help in solving this problem.
Advantages of FeRAM for Ticket Vending Machines
1. High-speed data backup in emergency situations
FeRAM is characterized by its extremely fast write speed. In emergency situations such as momentary voltage drops, data can be saved before the voltage drops completely, thus contributing to early system recovery.
2. data retention in an emergency
Since FeRAM does not require a power supply for data retention, data retention is possible even in the event of power loss. Combined with the characteristics described in 1 above, FeRAM enables rapid recovery after a system failure, which is an issue.
3. High write endurance for high frequency transaction data recording
FeRAM has an extremely high rewrite endurance, guaranteeing up to 100 trillion times. This feature is a good match for ticket vending machines, which are used by many customers per day and frequently record data.
These characteristics of FeRAM can be utilized not only in ticket vending machines, but also in applications that handle money, such as ATMs and vending machines.
Summary
In ticket vending machines, FeRAM enables early recovery from system downtime due to its high-speed writing, data retention, and high rewrite endurance. As a result, it contributes to the protection of customers' valuable monetary data.