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AT45DB642D-CNU

Name: AT45DB642D-CNU
Rating: 4.7 (12 reviews)

IC FLASH 64MBIT SPI 66MHZ 8CASON

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Mfr。パート #AT45DB642D-CNU
パッケージ CASON-8
データシート
在庫中2058

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仕様

Package	Tray
ProductStatus	Obsolete
MemoryType	Non-Volatile
MemoryFormat	FLASH
Technology	FLASH
MemorySize	64Mb (1056 Bytes x 8192 pages)
MemoryInterface	SPI
ClockFrequency	66 MHz
WriteCycleTime-WordPage	6ms
Voltage-Supply	2.7V ~ 3.6V
OperatingTemperature	-40°C ~ 85°C (TC)
MountingType	Surface Mount
Package/Case	8-VDFN

概要

Description

The AT45DB642D-CNU is a 64 megabit (8 MB) Serial DataFlash memory device manufactured by Atmel (now part of Microchip Technology). This non-volatile memory utilizes a SPI (Serial Peripheral Interface) for efficient data transfer and is designed for applications requiring high-density storage in a compact form factor.
Key features include a fast read speed, with data access times as low as 30 ns, and support for both page and byte programming modes, allowing for flexible data management. The device includes features such as sector erase and a built-in write protection mechanism to enhance data integrity and security.
It operates on a supply voltage range of 2.7V to 3.6V, making it suitable for battery-powered applications. The AT45DB642D-CNU is commonly used in consumer electronics, automotive, and industrial applications where reliable, high-performance storage is essential. Its small package size and robust performance make it a popular choice for embedded systems.

Features

The AT45DB642D-CNU is a serial Flash memory chip from Microchip Technology, featuring a 64-megabit (8 MB) capacity. Key features include:
1. Interface: It uses a SPI (Serial Peripheral Interface) with a dual and quad I/O configuration for high-speed data transfer.
2. Performance: It offers fast read and write speeds, with a maximum clock frequency of 66 MHz.
3. Endurance: The chip supports a minimum of 100,000 program/erase cycles per sector.
4. Data Retention: It ensures data retention of up to 20 years.
5. Power Supply: Operates within a voltage range of 2.7V to 3.6V.
6. Memory Architecture: Supports a page size of 256 bytes and sector sizes of 4K bytes.
7. Low Power Consumption: Designed for low power usage, making it suitable for battery-operated devices.
These features make the AT45DB642D-CNU ideal for applications in consumer electronics, automotive systems, and industrial devices requiring reliable non-volatile storage.

Package

The AT45DB642D-CNU is packaged in a 16-pin SOIC (Small Outline Integrated Circuit) package. This type of packaging is characterized by its slim profile and wide body, suitable for surface mounting on PCBs.

Pinout

The AT45DB642D-CNU is a serial NOR Flash memory chip with a pin count of 8. It features a 64 Mbit (8 MB) storage capacity and communicates over a SPI (Serial Peripheral Interface) bus.
The primary functions of the pinout include:
1. CS (Chip Select): Activates the device.
2. SCK (Serial Clock): Provides timing for data transfer.
3. SI (Serial Input): Data input to the device.
4. SO (Serial Output): Data output from the device.
5. WP (Write Protect): Enables write protection when connected to VCC.
6. RESET: Resets the device.
7. VCC: Power supply pin.
8. GND: Ground pin.
This device is designed for embedded applications, enabling fast data transfers and high-density storage for various electronic devices.

Manufacturer

The manufacturer of the AT45DB642D-CNU is Microchip Technology Inc. Microchip is a leading provider of microcontroller, mixed-signal, analog, and Flash-IP solutions. Established in 1989, the company specializes in embedded control applications and offers a wide range of products including microcontrollers, digital signal controllers, and memory devices. Microchip serves various industries such as automotive, industrial, consumer, and aerospace, providing innovative solutions for electronic systems design. The AT45DB642D-CNU is a serial Flash memory device used for data storage in applications requiring high-density memory solutions.

Application

The AT45DB642D-CNU is a high-density serial NOR Flash memory chip commonly used in various applications, including consumer electronics, automotive systems, industrial control, and telecommunications. Its primary uses include firmware storage, data logging, code shadowing, and firmware updates due to its fast read speeds and electrical erase capabilities. Additionally, it is suitable for applications requiring reliable data retention and low power consumption.

Equivalent

Equivalent products to the AT45DB642D-CNU chip include the Micron MT25QL064A, Winbond W25Q64JV, and Spansion S25FL064P. These chips offer similar functionality, such as SPI interface and flash memory storage, but ensure to check specific parameters like voltage, speed, and package type for compatibility with your application.