FM1808B-SG

Images are for reference only

FM1808B-SG

+BOM

IC FRAM 256KBIT PARALLEL 28SOIC

365 Days Quality Guarantee

7*24 hours service quarantee

90-day after-sales guarantee

Genuine Product Guarantee

Specifications

Attribute Value
Package / Case Tube
Series F-RAM™
Part Status Active
Memory Type Non-Volatile
Memory Format FRAM
Technology FRAM (Ferroelectric RAM)
Memory Size 256Kb (32K x 8)
Memory Interface Parallel
Write Cycle Time - Word Page 130ns
Voltage - Supply 4.5V ~ 5.5V
Operating Temperature -40°C ~ 85°C (TA)
Mounting Type Surface Mount

Overview

Description

FM1808B-SG is a type of non-volatile ferroelectric random-access memory (FRAM) device. It combines the fast read and write capabilities of dynamic RAM with the non-volatility of flash memory. The "SG" in its name often denotes a specific package type or feature variant within the FM1808B series. These memory devices are known for their high endurance, low power consumption, and fast data writing speeds compared to traditional non-volatile memories like EEPROM and flash. They are commonly used in applications requiring frequent data logging, rapid data access, and long-term data retention without power. Applications include industrial automation, medical devices, metering systems, and mission-critical data storage systems, where reliability and speed are paramount. The FM1808B-SG is well-suited for environments where data integrity is crucial, and power loss without data loss is a necessity.

Equivalent

The FM1808B-SG is a non-volatile ferroelectric RAM (FRAM) chip. Equivalent products include:
1. FM24C256 - Another FRAM product with similar non-volatile features.
2. MB85R256F - Fujitsu's FRAM with similar capacity and characteristics.
3. Cypress CY15B104Q - Offers similar non-volatile memory solutions.
4. Adesto Technologies' RM24C256C - EEPROM, providing similar storage functionalities.
These alternatives offer similar non-volatile memory features but may differ in specifications like density, package, and interface. Always check compatibility before substituting.

Features

The FM1808B-SG is a non-volatile ferroelectric RAM (FRAM) chip, which combines the fast read and write capabilities of RAM with the non-volatile data retention of flash memory. Key features include:
1. Capacity: Typically available in kilobit or megabit capacities, providing ample storage for various applications.
2. Speed: Fast read/write cycles, often comparable to DRAM, with no need for pre-charge or refresh cycles.
3. Endurance: Supports high write endurance, often in the range of 10^14 read/write cycles, ensuring longevity.
4. Data Retention: Non-volatile, capable of retaining data for over 10 years without power.
5. Low Power Consumption: Efficient power usage, suitable for battery-powered applications.
6. Interface: Supports standard industry interfaces, such as SPI or parallel interfaces, for easy integration.
7. Package: Available in compact packages suitable for space-constrained applications.
These features make the FM1808B-SG ideal for applications requiring high-speed data processing and reliable non-volatile storage, such as in embedded systems, industrial control, and consumer electronics.

Pinout

The FM1808B-SG is a 32Kb (4K x 8) non-volatile ferroelectric RAM (FRAM) memory chip. It typically comes in a standard 28-pin SOIC (Small Outline Integrated Circuit) package. The key functions and pinouts are as follows:
1. Address Pins (A0–A11): These 12 pins are used to address the 4096 locations within the memory.
2. Data Pins (DQ0–DQ7): These 8 pins are used for data input and output.
3. Chip Enable (CE): Activates the chip when low.
4. Write Enable (WE): Controls writing operations to the memory.
5. Output Enable (OE): Enables the output buffer when low.
6. VCC: Power supply pin.
7. VSS: Ground pin.
These pins are integral for read, write, and data transfer operations, enabling the FM1808B-SG to function as a low-power memory solution with fast write capabilities and non-volatility.

Manufacturer

The FM1808B-SG is manufactured by Ramtron International Corporation, which is now part of Cypress Semiconductor Corporation. Ramtron was known for developing non-volatile ferroelectric random-access memory (F-RAM) products, which combine the benefits of RAM and non-volatile storage. In 2012, Cypress Semiconductor, a technology company specializing in semiconductor design and manufacturing, acquired Ramtron. Cypress has since been focused on providing a wide range of semiconductor solutions, including memory, microcontrollers, and connectivity solutions for various industries.

Application

The FM1808B-SG is a type of non-volatile ferroelectric RAM (FRAM) chip. Its application areas include data logging and storage in industrial automation systems, smart meters, and data acquisition devices due to its fast write speeds and high endurance. It is also used in consumer electronics for maintaining configuration settings without power. In automotive systems, it provides reliable data storage under harsh conditions. Additionally, it is suitable for use in medical devices where data integrity and rapid access are critical. Its non-volatility, low power consumption, and high endurance make it ideal for applications requiring frequent and rapid data writing.

Package

The FM1808B-SG is a type of ferroelectric RAM (FRAM) chip, typically housed in an 8-pin Small Outline Integrated Circuit (SOIC) package. This packaging is compact and designed for surface mounting on printed circuit boards, providing non-volatile memory storage with fast write speeds and endurance.

Products related to FM1808B-SG