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AT45DB041D Datasheet, PDF (1/53 Pages) List of Unclassifed Manufacturers – 4-megabit 2.5-volt or 2.7-volt DataFlash | |||
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Features
⢠Single 2.5V or 2.7V to 3.6V Supply
⢠RapidSTM Serial Interface: 66MHz Maximum Clock Frequency
â SPI Compatible Modes 0 and 3
⢠User Configurable Page Size
â 256-Bytes per Page
â 264-Bytes per Page
â Page Size Can Be Factory Pre-configured for 256-Bytes
⢠Page Program Operation
â Intelligent Programming Operation
â 2,048 Pages (256-/264-Bytes/Page) Main Memory
⢠Flexible Erase Options
â Page Erase (256-Bytes)
â Block Erase (2-Kbytes)
â Sector Erase (64-Kbytes)
â Chip Erase (4Mbits)
⢠Two SRAM Data Buffers (256-, 264-Bytes)
â Allows Receiving of Data while Reprogramming the Flash Array
⢠Continuous Read Capability through Entire Array
â Ideal for Code Shadowing Applications
⢠Low-power Dissipation
â 7mA Active Read Current Typical
â 25μA Standby Current Typical
â 15μA Deep Power-down Typical
⢠Hardware and Software Data Protection Features
â Individual Sector
⢠Sector Lockdown for Secure Code and Data Storage
â Individual Sector
⢠Security: 128-byte Security Register
â 64-byte User Programmable Space
â Unique 64-byte Device Identifier
⢠JEDEC Standard Manufacturer and Device ID Read
⢠100,000 Program/Erase Cycles Per Page Minimum
⢠Data Retention â 20 Years
⢠Industrial Temperature Range
⢠Green (Pb/Halide-free/RoHS Compliant) Packaging Options
4-megabit
2.5-volt or
2.7-volt
DataFlash®
AT45DB041D
(Not recommended for
new designs. Use
AT45DB041E.)
1. Description
The AT45DB041D 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 AT45DB041D supports RapidS serial interface for applications requiring very
high speed operations. RapidS serial interface is SPI compatible for frequencies up to
66MHz. Its 4,325,376-bits of memory are organized as 2,048 pages of 256-bytes or
264-bytes each. In addition to the main memory, the AT45DB041D 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-con-
tained three step read-modify-write operation. Unlike conventional 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
3595TâDFLASHâ8/2013
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