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 66 MHz. 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-contained 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 reduces active pin count, facilitates hardware layout,
Standard Features
• Single 2.5V or 2.7V to 3.6V Supply
• RapidS® Serial Interface: 66 MHz Maximum Clock Frequency
– SPI Compatible Modes 0 and 3
• User Configurable Page Size
– 256 Bytes per Page
– 264 Bytes per Page
• Page Program Operation
– Intelligent Programming Operation
– 2,048 Pages (256/264 Bytes/Page) Main Memory
• Flexible Erase Options
– Page Erase (256 Bytes)
– Block Erase (2 Kbytes)
– Sector Erase (64 Kbytes)
– Chip Erase (4 Mbits)
• 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
– 7 mA Active Read Current Typical
– 25 µA Standby Current Typical
– 5 µA 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
Package:
8-Lead PDIP, 8-Lead SOIC, 5-Lead SOT23, 8-Lead TSSOP, 8-Pad UDFN
and 8-Ball VFBGA
Applications
Computers & Computer Peripherals, Industrial, Commercial
