Product Summary

The AT25DF321-S3U is a serial interface Flash memory device designed for use in a wide variety of high-volume consumer based applications in which program code is shadowed from Flash memory into embedded or external RAM for execution. It also offers a sophisticated method for protecting individual sectors against erroneous or malicious program and erase operations. This increased memory space efficiency allows additional code routines and data storage segments to be added while still maintaining the same overall device density.

Parametrics

AT25DF321-S3U absolute maximum ratings: (1)Temperature under Bias: -55°C to +125°C; (2)Storage Temperature: -65°C to +150°C; (3)All Input Voltages (including NC Pins) with Respect to Ground: -0.6V to +4.1V; (4)All Output Voltages with Respect to Ground: -0.6V to VCC + 0.5V

Features

AT25DF321-S3U features: (1)Single 2.7V - 3.6V Supply; (2)Serial Peripheral Interface (SPI) Compatible; (3)Supports SPI Modes 0 and 3; (4)70 MHz Maximum Clock Frequency; (5)Flexible, Uniform Erase Architecture; (6)Full Chip Erase; (7)Individual Sector Protection with Global Protect/Unprotect Feature; (8)Sixty-Four 64-Kbyte Physical Sectors; (9)Hardware Controlled Locking of Protected Sectors; (10)Flexible Programming; (11)Byte/Page Program (1 to 256 Bytes); (12)Automatic Checking and Reporting of Erase/Program Failures; (13)JEDEC Standard Manufacturer and Device ID Read Methodology; (14)Low Power Dissipation; (15)7 mA Active Read Current (Typical); (16)4 uA Deep Power-Down Current (Typical); (17)Endurance: 100,000 Program/Erase Cycles; (18)Data Retention: 20 Years; (19)Complies with Full Industrial Temperature Range; (20)Industry Standard Green (Pb/Halide-free/RoHS Compliant) Package Options; (21)8-lead SOIC (200-mil wide); (22)16-lead SOIC (300-mil wide).

Diagrams

AT25DF321-S3U pin connection

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