Adesto / Dialog AT45DB021E-SSHN-B, 2Mbit SPI DataFlash, 70 MHz clock, 1.65 V–3.6 V supply, 264 B × 1024 pages, 8-SOIC package, tube, -40 °C to 85 °C.
| Parameter | Value |
|---|---|
| Memory type | Non-Volatile |
| Mounting type | Surface Mount |
| Voltage | 1.65V ~ 3.6V |
| Frequency | 70 MHz |
| Memory interface | SPI |
| Operating temperature | -40°C ~ 85°C (TC) |
| Package | Tube |
| Technology | FLASH |
| Memory size | 2Mbit |
| Memory format | FLASH |
| Case | 8-SOIC (0.154\", 3.90mm Width) |
| Memory organization | 264 Bytes x 1024 pages |
| Write cycle time - word, page | 8µs, 3ms |
The AT45DB021E-SSHN-B: Supply range is 1.65 V to 3.6 V. Page size is 264 bytes. Word write is 8 µs; page write is 3 ms.
This part carries an Active lifecycle status and is ROHS3 compliant. No last-time-buy notice or end-of-life announcement exists. For new designs and production replenishment, the part is available through independent distribution and is quoted to order against an RFQ.
This part is sourced through independent distribution. Submit an RFQ for current availability and pricing; lead time and price are confirmed at quote time.
The page write time is 3 ms; the word write time is 8 µs.
Yes. The -B (tube) and -T (tape-and-reel) variants share the same die, same 8-SOIC package, same 70 MHz SPI interface, same 1.65 V–3.6 V supply, and same 264-byte page organization. The only difference is the delivery medium.
The AT45DB021E series is the successor to the AT45DB021D and maintains the same 8-pin SOIC footprint and SPI pinout. Verify the exact supply voltage and timing parameters against your design, but the mechanical and interface compatibility is preserved across the E and D generations.
The listed interface is standard SPI. The DataFlash family does not include quad-SPI support on this part; it uses a single SPI bus with dedicated chip-select, clock, data-in, and data-out lines.