AT45DB081D数据手册集成电路（IC）的存储器规格书PDF

描述 Description

The Atmel® AT45DB081D is a 2.5V or 2.7V, serial-interface Flash memory ideally suited for a wide variety of digital voice-, image-, program code- and data-storage applications. The AT45DB081D supports Atmel RapidS™ serial interface for applications requiring very high speed operations. RapidS serial interface is SPI compatible for frequencies up to 66MHz. Its 8,650,752-bits of memory are organized as 4,096 pages of 256-bytes or 264-bytes each. In addition to the main memory, the AT45DB081D also contains two SRAM buffers of 256-/264-bytes each. The buffers allow the receiving of data while a page in the main Memory is being reprogrammed, as well as writing a continuous data stream. EEPROM emulation (bit or byte alterability) is easily handled with a self-contained three step read-modify-write operation.

特性 Features

• Single 2.5V or 2.7V to 3.6V Supply
• RapidS Serial Interface: 66MHz Maximum Clock Frequency
   – SPI Compatible Modes 0 and 3
• User Configurable Page Size
   – 256-Bytes per Page
   – 264-Bytes per Page
   – Page Size Can Be Factory Pre-configured for 256-Bytes
• Page Program Operation
   – Intelligent Programming Operation
   – 4,096 Pages (256/264-Bytes/Page) Main Memory
• Flexible Erase Options
   – Page Erase (256-Bytes)
   – Block Erase (2-Kbytes)
   – Sector Erase (64-Kbytes)
   – Chip Erase (8Mbits)
• Two SRAM Data Buffers (256-/264-Bytes)
   – Allows Receiving of Data while Reprogramming the Flash Array
• Continuous Read Capability through Entire Array
   – Ideal for Code Shadowing Applications
• Low-power Dissipation
   – 7mA Active Read Current Typical
   – 25µA Standby Current Typical
   – 15µA Deep Power Down Typical
• Hardware and Software Data Protection Features
   – Individual Sector
• Sector Lockdown for Secure Code and Data Storage
   – Individual Sector
• Security: 128-byte Security Register
   – 64-byte User Programmable Space
   – Unique 64-byte Device Identifier
• JEDEC Standard Manufacturer and Device ID Read
• 100,000 Program/Erase Cycles Per Page Minimum
• Data Retention – 20 Years
• Industrial Temperature Range
• Green (Pb/Halide-free/RoHS Compliant) Packaging Options

应用 Application

• Low-power Dissipation
   – 7mA Active Read Current Typical
   – 25µA Standby Current Typical
   – 15µA Deep Power Down Typical
• Hardware and Software Data Protection Features
   – Individual Sector
• Sector Lockdown for Secure Code and Data Storage
   – Individual Sector
• Security: 128-byte Security Register
   – 64-byte User Programmable Space
   – Unique 64-byte Device Identifier
• JEDEC Standard Manufacturer and Device ID Read
• 100,000 Program/Erase Cycles Per Page Minimum
• Data Retention – 20 Years
• Industrial Temperature Range
• Green (Pb/Halide-free/RoHS Compliant) Packaging Options