FM24CL16: 16Kb FRAM Serial Memory with I2C Interface

需积分: 42 138 浏览量更新于2024-10-22 收藏 118KB PDF 举报

"FM24CL16 是一款基于I2C接口的16Kb FRAM（Ferroelectric Nonvolatile RAM）串行3V内存，由Ramtron International Corporation制造。这款芯片符合公司的标准保修条款，并通过了内部的资格测试进入生产阶段。FM24CL16的主要特点包括无限次读写循环、45年的数据保留能力、无延迟写入、高速两线式串行接口，以及低功耗操作。它可以直接替代EEPROM，适用于工业温度范围(-40°C to +85°C)的应用，并提供8引脚的‘绿色’/RoHS SOIC和TDFN封装。" FM24CL16是一款16千位非易失性存储器，采用先进的铁电工艺制造，其组织结构为2,048个8位单元。这款芯片的一大优势在于其卓越的耐用性，允许几乎无限次的读写操作，这意味着在实际应用中无需担心数据丢失或存储寿命问题。此外，FM24CL16保证在45年内数据可以被安全地保存，这使得它成为长期存储数据的理想选择。无延迟写入功能是FM24CL16的另一大亮点，与传统的EEPROM相比，它在写入操作时不需要等待时间，从而提高了系统性能和效率。该芯片支持高达1MHz的最大总线频率，确保了快速的数据传输速率。在功耗方面，FM24CL16设计为低功耗器件。在3V电压下，其工作电流仅为75µA（在100kHz时），而待机电流仅为1µA，这对于电池供电或能源敏感的应用非常有利。这款芯片符合工业标准配置，可在工业标准温度范围内(-40°C至+85°C)稳定工作。封装形式上，FM24CL16提供了8引脚的‘绿色’/RoHS兼容的SOIC和TDFN封装，其中TDFN封装的尺寸与TSSOP-8相匹配，这有利于设计紧凑、环保的电子产品。对于特定的可靠性要求，FM24CL16还通过了Grade 3 AEC-Q100认证（仅限SOI版本），表明其在汽车电子等高要求领域中的可靠性得到了认可。 FM24CL16是集高速、低功耗、高耐久性和小巧封装于一身的非易失性存储解决方案，特别适合那些需要频繁且快速读写操作，同时对电源效率和数据持久性有高要求的嵌入式系统应用。

FM24CL16

Rev. 3.4

May 2009 Page 3 of 13

Overview

The FM24CL16 is a serial FRAM memory. The

memory array is logically organized as a 2,048 x 8

memory array and is accessed using an industry

standard two-wire interface. Functional operation of

the FRAM is similar to serial EEPROMs. The major

difference between the FM24CL16 and a serial

EEPROM with the same pinout relates to its superior

write performance.

Memory Architecture

When accessing the FM24CL16, the user addresses

2,048 locations each with 8 data bits. These data bits

are shifted serially. The 2,048 addresses are accessed

using the two-wire protocol, which includes a slave

address (to distinguish from other non-memory

devices), a row address, and a segment address. The

row address consists of 8-bits that specify one of 256

rows. The 3-bit segment address specifies one of 8

segments within each row. The complete 11-bit

address specifies each byte uniquely.

Most functions of the FM24CL16 either are

controlled by the two-wire interface or handled

automatically by on-board circuitry. The memory is

read or written at the speed of the two-wire bus.

Unlike an EEPROM, it is not necessary to poll the

device for a ready condition since writes occur at bus

speed. That is, by the time a new bus transaction can

be shifted into the part, a write operation is complete.

This is explained in more detail in the interface

section below.

Note that the FM24CL16 contains no power

management circuits other than a simple internal

power-on reset. It is the user’s responsibility to ensure

that V

is within data sheet tolerances to prevent

incorrect operation.

Two-wire Interface

The FM24CL16 employs a bi-directional two-wire

bus protocol using few pins and little board space.

Figure 2 illustrates a typical system configuration

using the FM24CL16 in a microcontroller-based

system. The industry standard two-wire bus is

familiar to many users but is described in this section.

By convention, any device that is sending data onto

the bus is the transmitter while the target device for

this data is the receiver. The device that is controlling

the bus is the master. The master is responsible for

generating the clock signal for all operations. Any

device on the bus that is being controlled is a slave.

The FM24CL16 is always a slave device.

The bus protocol is controlled by transition states in

the SDA and SCL signals. There are four conditions

including Start, Stop, Data bit, and Acknowledge.

Figure 3 illustrates the signal conditions that define

the four states. Detailed timing diagrams are in the

electrical specifications.

Microcontroller

SDA SCL

FM24CL16

SDA SCL

Other Slave

Device

VDD

Rmin = 1.1 K

Ω

Rmax = tR/Cbus

Figure 2. Typical System Configuration

剩余12页未读，继续阅读

Desperado1984

粉丝: 0
资源: 1

FM24CL16: 16Kb FRAM Serial Memory with I2C Interface

fm24cl16b.zip_FM24C16B_FM24CL16B_fm24c16_fm24cl16 程序_fm24cl16b的作

FM24cl04驱动程序

FM24CL64铁电存储器的存取

FM24CL04数据手册.pdf

周立功FM24CL04数据手册详细解析

周立功FM24CL04中文数据手册：广州公司地址与技术支持

LPC17XX at45db0161 FM24CL16

模拟SPI读写FM24CL64

FM24CL64B-GTR、MB85RS64驱动代码

CL6017S FM收音机芯片数据手册分析

最新资源