Rainbow Electronics AT45DQ321 - Manual

DS-45DQ321-031–DFLASH–12/2012
Features
 Single 2.3V - 3.6V or 2.5V - 3.6V supply
 Serial Peripheral Interface (SPI) compatible
 Supports SPI modes 0 and 3
 Supports RapidS ™ operation
 Supports Dual-input and Quad-input Buffer Write

Supports Dual-output and Quad-output Read
 Very high operating frequencies

85MHz (for SPI)
 85MHz (for Dual-I/O and Quad-I/O)
 Clock-to-output time (t
V
) of 6ns maximum
 User configurable page size

512 bytes per page

528 bytes per page (default)

Page size can be factory pre-configured for 512 bytes
 Two fully independent SRAM data buffers (512/528 bytes)
 Allows receiving data while reprogramming the main memory array
 Flexible programming options

Byte/Page Program (1 to 512/528 bytes) directly into main memory

Buffer Write
 Buffer to Main Memory Page Program
 Flexible erase options
 Page Erase (512/528 bytes)
 Block Erase (4KB)
 Sector Erase (64KB)
 Chip Erase (32-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
 500nA Ultra-Deep Power-Down current (typical)
 3μA Deep Power-Down current (typical)
 25μA 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 (0.208" wide)
 8-pad Ultra-thin DFN (5 x 6 x 0.6mm)
 9-ball Ultra-thin UBGA (6 x 6 x 0.6mm)
AT45DQ321
32-Mbit DataFlash (with Extra 1-Mbits), 2.3V or 2.5V Minimum
SPI Serial Flash Memory with Dual-I/O and Quad-I/O Support
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