AT45DBxxx DataFlash

AT45DBxxx DataFlash

Adesto Technologies' AT45DBxxx DataFlash devices offer uniform page erase size as small as 256 bytes. This provides the user with the ability to perform completely self-contained, read-modify-write operations with minimal system overhead and management. The devices feature a common, but extensive, command interface and an 8-pin compatible footprint for easy migration from 1 Mbit to 64 Mbit densities. The Adesto programmed unique ID number, user-programmable sector protection, permanent sector locking, page erase capability, and integrated, fully independent SRAM buffers. This enables utilization of a single, very low pin-count memory device for all nonvolatile memory needs in terms of data storage, code shadow, or combined applications.

Current 2.5 V and 2.7 V minimum voltage options, as well as 1.65 V and 2.3 V minimum versions, are in development, but DataFlash devices align well with current futureASIC and SoC technologies. The DataFlash family provides flexibility, performance, ease-of-use, and can help drive your system cost reduction initiatives.

  • 1 Mbit to 64 Mbit densities
  • Small page array architecture
  • Individually erasable pages of 256/264, 512/528, or 1024/1056 bytes each
  • Dual on-chip, independent SRAM buffers
  • SRAM buffer size equal to memory page size
  • Command-rich instruction set
  • Enhanced low-power read
  • Zero-power shutdown options
  • Software reset capability
  • 66 MHz+ SPI, dual-I/O, and quad-I/O support
  • Individual sector protection and lockdown
  • 128-byte OTP security register
  • 100,000 cycles per page minimum
  • JEDEC manufacturer and device ID standard