MB85RC04VPNF-G-JNERE1 datasheet, PDF

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MB85RC04VPNF-G-JNERE1: DescriptionMemory interface type: I2C Memory capacity: 4Kb (512 x 8) Operating voltage: 3V ~ 5.5V Memory type: Non-Volatile 4-Kbit (512 × 8bit), I2C interface, operating voltage: 3.0V to 5.5V; Categorystorage FRAM memory; File Size1MB，36 Pages; ManufacturerFUJITSU; Websitehttp://edevice.fujitsu.com/fmd/en/index.html

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MB85RC04VPNF-G-JNERE1 Overview

Memory interface type: I2C Memory capacity: 4Kb (512 x 8) Operating voltage: 3V ~ 5.5V Memory type: Non-Volatile 4-Kbit (512 × 8bit), I2C interface, operating voltage: 3.0V to 5.5V

MB85RC04VPNF-G-JNERE1 Parametric

Parameter Name	Attribute value
Memory architecture (format)	FRAM
Memory interface type	I2C
memory capacity	4Kb (512 x 8)
Operating Voltage	3V ~ 5.5V
memory type	Non-Volatile

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FUJITSU SEMICONDUCTOR

DATA SHEET

DS501-00016-2v0-E

Memory FRAM

4 K (512

8) Bit I

MB85RC04V

■

DESCRIPTION

The MB85RC04V is an FRAM (Ferroelectric Random Access Memory) chip in a configuration of 512

words

8 bits, using the ferroelectric process and silicon gate CMOS process technologies for forming the

nonvolatile memory cells.

Unlike SRAM, the MB85RC04V is able to retain data without using a data backup battery.

The read/write endurance of the nonvolatile memory cells used for the MB85RC04V has improved to be at

least 10

cycles, significantly outperforming other nonvolatile memory products in the number.

The MB85RC04V does not need a polling sequence after writing to the memory such as the case of Flash

memory or E

PROM.

■

FEATURES

Bit configuration

: 512 words

8 bits

Two-wire serial interface

: Fully controllable by two ports: serial clock (SCL) and serial data (SDA).

Operating frequency

: 1 MHz (Max)

Read/write endurance

: 10

times / byte

Data retention

: 10 years (

°C),

95 years (

°C),

over 200 years (

°C)

Operating power supply voltage : 3.0 V to 5.5 V

Low-power consumption

: Operating power supply current 90

μA

(Typ @1 MHz)

Standby current 5

μA

(Typ)

• Operation ambient temperature range

−

°C

• Package

: 8-pin plastic SOP (FPT-8P-M02)

RoHS compliant

•

2013.2

MB85RC04V

■

ACKNOWLEDGE (ACK)

In the I

C bus, serial data including address or memory information is sent in units of 8 bits. The acknowledge

signal indicates that every 8 bits of the data is successfully sent and received. The receiver side usually

outputs the “L” level every time on the 9th SCL clock after each 8 bits are successfully transmitted and

received. On the transmitter side, the bus is temporarily released to Hi-Z every time on this 9th clock to allow

the acknowledge signal to be received and checked. During this Hi-Z released period, the receiver side pulls

the SDA line down to indicate the “L” level that the previous 8 bits communication is successfully received.

In case the slave side receives Stop condition before sending or receiving the ACK “L” level, the slave side

stops the operation and enters to the standby state. On the other hand, the slave side releases the bus state

after sending or receiving the NACK “H” level. The master side generates Stop condition or Start condition

in this released bus state.

•

Acknowledge timing overview diagram

SCL

SDA

The transmitter side should always release SDA on the

9th bit. At this time, the receiver side outputs a pull-down

if the previous 8 bits data are received correctly (ACK re-

sponse).

ACK

Start

■

MEMORY ADDRESS STRUCTURE

The MB85RC04V has the memory address buffer to store the 9-bit information for the memory address.

As for byte write, page write and random read commands, the complete 9-bit memory address is configured

by inputting the memory upper address (1 bit) and the memory lower address (8 bits), and saved to the

memory address buffer. Then access to the memory is performed.

As for a current address read command, the complete 9-bit memory address is configured and saved to the

memory address buffer, by inputting the memory upper address (1 bit) and the memory lower address (8

bits) which has saved in the memory address buffer. Then access to the memory is performed.

DS501-00016-2v0-E

MB85RC04VPNF-G-JNERE1 Related Products

	MB85RC04VPNF-G-JNERE1
Description	Memory interface type: I2C Memory capacity: 4Kb (512 x 8) Operating voltage: 3V ~ 5.5V Memory type: Non-Volatile 4-Kbit (512 × 8bit), I2C interface, operating voltage: 3.0V to 5.5V
Memory architecture (format)	FRAM
Memory interface type	I2C
memory capacity	4Kb (512 x 8)
Operating Voltage	3V ~ 5.5V
memory type	Non-Volatile

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