The Microchip AT45DB021E-SSHNHC-T is a 2Mbit serial SPI DataFlash memory built on a non-volatile FLASH technology. It organizes its memory into 264 bytes per page across 1024 pages.
70 MHz SPI and write timing — what drives the BOM decision
The 70 MHz SPI clock is the headline throughput spec. The write cycle time — 8 µs for a page program and 3 ms for a page erase — sets the floor for how long a firmware update takes.
The AT45DB021E-SSHNHC-T is an active, current-production part. If you need a firm price and delivery for a BOM line, submit an RFQ and we will come back with the current picture from our multi-source channel.