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AT45DB021D-SH-SL954 Datasheet(PDF) 1 Page - List of Unclassifed Manufacturers |
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AT45DB021D-SH-SL954 Datasheet(HTML) 1 Page - List of Unclassifed Manufacturers |
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1 / 48 page  Features • Single 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 – 1,024 Pages (256/264-Bytes/Page) Main Memory • Flexible Erase Options – Page Erase (256-Bytes) – Block Erase (2-Kbytes) – Sector Erase (32-Kbytes) – Chip Erase (2-Mbits) • One SRAM Data Buffer (256/264-Bytes) • 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 Description The AT45DB021D is a 2.7V, serial-interface Flash memory ideally suited for a wide variety of digital voice-, image-, program code- and data-storage applications. The AT45DB021D supports RapidS™ serial interface for applications requiring very high speed operations. RapidS serial interface is SPI compatible for frequencies up to 66MHz. Its 2-,162-,688-bits of memory are organized as 1,024-pages of 256-bytes or 264-bytes each. In addition to the main memory, the AT45DB021D also contains one SRAM buffer of 256-/264-bytes. EEPROM emulation (bit or byte alterability) is easily handled with a self-contained three step read-modify-write operation. Unlike conven- tional Flash memories that are accessed randomly with multiple address lines and a parallel interface, the DataFlash® uses a RapidS serial interface to sequentially access its data. The simple sequential access dramatically reduces active pin count, facilitates hardware layout, increases system reliability, minimizes switching noise, and reduces package size. 2-megabit 2.7V Minimum DataFlash AT45DB021D (Not Recommended for New Designs) 3638M–DFLASH–5/2013 |
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