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FM30A, FM30C256, FM30C256-C

Table of contents:
Info of FM30A
Info of FM30C256
Info of FM30C256-C

FM30A, FM30C256, FM30C256-C Selling Leads, Datasheet

MFG:MITSUBISHI Package Cooled:module D/C:RamTRON

FM30A, FM30C256, FM30C256-C Datasheet download

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Part Number: FM30A

MFG: MITSUBISHI

Package Cooled: module

D/C: RamTRON

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FM30C256 General Description

The FM30C256 is a 256-kilobit data collection subsystem including nonvolatile RAM, timekeeping,CPU supervisor, and system tamper detection. Non-volatile RAM is provided by FRAM technology,which is ideal for collection data and requires no battery backup for nonvolatile storage. In other respects, it provides the same features as SRAM.FRAM performs write operations at bus speed with no write delays. Write cycles can be continuous without block limitations. In addition, it offers much higher write endurance than other nonvolatile memories. The FM30C256 supports up to 1010 read/write cycles.

The FM30C256 also includes timekeeping with external battery backup. The timekeeper consists of registers that represent time and date information in BCD format. The clock includes a calibration mode that allows a software adjustment for timekeeping accuracy.

To maintain system data integrity, the FM30C256 provides a reset signal asserted when VDD is out of tolerance. /RST remains active for 100 ms after VDD returns to proper levels. The FM30C256 also provides a battery-backed tamper detect circuit that records a rising edge on the TIN input. A batterybacked flag is set when the event occurs, but can only be cleared by software.

The FM30C256 is provided in a 20-pin SOIC package and is guaranteed over an industrial temperature range of 40°C to +85°C.

FM30C256 Maximum Ratings

Symbol	Description	Ratings
V_DD	Power Supply Voltage with respect to V_SS	-1.0V to +7.0V
V_IN	Voltage on any pin with respect to V_SS	-1.0V to +7.0V and V_IN< V_DD+1.0V
T_STG	Storage Temperature	-55°C to + 125°C
T_LEAD	Lead temperature (Soldering, 10 seconds)	300° C

FM30C256 Features

• Organized as 32,768 x 8 bits
• High Endurance 10 Billion (1010) Read/Writes
• 10 year Data Retention
• NoDelay™ Writes
• Advanced High-Reliability Ferroelectric Process

FM30C256 Connection Diagram

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