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AT45DB081 Datasheet(PDF) 1 Page - ATMEL Corporation |
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AT45DB081 Datasheet(HTML) 1 Page - ATMEL Corporation |
1 / 16 page AT45DB081 1 8-Megabit 2.7-volt Only Serial DataFlash ™ AT45DB081 Features • Single 2.7V - 3.6V Supply • Serial Interface Architecture • Page Program Operation – Single Cycle Reprogram (Erase and Program) – 4096 Pages (264 Bytes/Page) Main Memory • Two 264-Byte Data Buffers – Allows Receiving of Data while Reprogramming of Non-Volatile Memory • Internal Program and Control Timer • Fast Page Program Time – 7 ms Typical • 120 µs Typical Page to Buffer Transfer Time • Low Power Dissipation – 4 mA Active Read Current Typical –2 µA CMOS Standby Current Typical • 10 MHz Max Clock Frequency • Hardware Data Protection Feature • Serial Peripheral Interface (SPI) Compatible – Modes 0 and 3 • CMOS and TTL Compatible Inputs and Outputs • Commercial and Industrial Temperature Ranges Description The AT45DB081 is a 2.7-volt only, serial interface Flash memory suitable for in-sys- tem reprogramming. Its 8,650,752 bits of memory are organized as 4096 pages of 264-bytes each. In addition to the main memory, the AT45DB081 also contains two data buffers of 264-bytes each. The buffers allow receiving of data while a page in the main memory is being reprogrammed. Unlike conventional Flash memories that are accessed randomly with multiple address lines and a parallel interface, the DataFlash uses a serial interface to sequentially access its data. The simple serial interface facil- itates hardware layout, increases system reliability, minimizes switching noise, and 0870A-A–6/97 Pin Configurations Pin Name Function CS Chip Select SCK Serial Clock SI Serial Input SO Serial Output WP Hardware Page Write Protect Pin RESET Chip Reset RDY/BUSY Ready/Busy (continued) TSOP Top View Type 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 RDY/BUSY RESET WP NC NC NC VCC GND NC NC NC NC CS SCK SI SO NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC SOIC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 GND NC NC CS SCK SI SO NC NC NC NC NC NC NC VCC NC NC WP RESET RDY/BUSY NC NC NC NC NC NC NC NC |
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