AT45DB081E 8-Mbit DataFlash (with Extra 256-Kbits), 1.7V Minimum SPI Serial Flash Memory Features Single 1.7V - 3.6V supply Serial Peripheral Interface (SPI) compatible Supports SPI modes 0 and 3 Supports RapidS operation Continuous read capability through entire array Up to 85MHz Low-power read option up to 15MHz Clock-to-output time (t ) of 6ns maximum V User configurable page size 256 bytes per page 264 bytes per page (default) Page size can be factory pre-configured for 256 bytes Two fully independent SRAM data buffers (256/264 bytes) Allows receiving data while reprogramming the main memory array Flexible programming options Byte/Page Program (1 to 256/264 bytes) directly into main memory Buffer Write Buffer to Main Memory Page Program Flexible erase options Page Erase (256/264 bytes) Block Erase (2KB) Sector Erase (64KB) Chip Erase (8-Mbits) Program and Erase Suspend/Resume Advanced hardware and software data protection features Individual sector protection Individual sector lockdown to make any sector permanently read-only 128-byte, One-Time Programmable (OTP) Security Register 64 bytes factory programmed with a unique identifier 64 bytes user programmable Hardware and software controlled reset options JEDEC Standard Manufacturer and Device ID Read Low-power dissipation 400nA Ultra-Deep Power-Down current (typical) 4.5A Deep Power-Down current (typical) 25A Standby current (typical) 11mA Active Read current (typical at 20MHz) Endurance: 100,000 program/erase cycles per page minimum Data retention: 20 years Complies with full industrial temperature range Green (Pb/Halide-free/RoHS compliant) packaging options 8-lead SOIC (0.150 wide and 0.208 wide) 8-pad Ultra-thin DFN (5 x 6 x 0.6mm) 8-ball (2 x4 Array) Wafer Level Chip Scale Package Die in Wafer Form DS-45DB081E-028IDFLASH1/2017Description The AT45DB081E is a 1.7V minimum, serial-interface sequential access Flash memory ideally suited for a wide variety of digital voice, image, program code, and data storage applications. The AT45DB081E also supports the RapidS serial interface for applications requiring very high speed operation. Its 8,650,752 bits of memory are organized as 4,096 pages of 256 bytes or 264 bytes each. In addition to the main memory, the AT45DB081E also contains two SRAM buffers of 256/264 bytes each. The buffers allow receiving of data while a page in the main memory is being reprogrammed. Interleaving between both buffers can dramatically increase a system s ability to write a continuous data stream. In 2 addition, the SRAM buffers can be used as additional system scratch pad memory, and E PROM emulation (bit or byte alterability) can be 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 serial interface to sequentially access its data. The simple sequential access dramatically reduces active pin count, facilitates simplified hardware layout, increases system reliability, minimizes switching noise, and reduces package size. The device is optimized for use in many commercial and industrial applications where high-density, low-pin count, low-voltage, and low-power are essential. To allow for simple in-system re-programmability, the AT45DB081E does not require high input voltages for programming. The device operates from a single 1.7V to 3.6V power supply for the erase and program and read operations. The AT45DB081E is enabled through the Chip Select pin (CS) and accessed via a 3-wire interface consisting of the Serial Input (SI), Serial Output (SO), and the Serial Clock (SCK). All programming and erase cycles are self-timed. 1. Pin Configurations and Pinouts Figure 1-1. Pinouts 8-lead SOIC 8-pad UDFN 8-Ball WLCSP Top View Top View Bottom View (through package) Pin 1 SI 1 8 SO WP CS SI 1 8 SO SCK 2 7 GND SCK 2 7 GND V CC RESET RESET 3 6 V CC RESET 3 6 V CC GND SCK CS 4 5 WP CS 4 5 WP SO SI Note: 1. The metal pad on the bottom of the UDFN package is not internally connected to a voltage potential. This pad can be a no connect or connected to GND. AT45DB081E 2 DS-45DB081E-028IDFLASH1/2017