Product Summary

The AT25DF321A-SH-B 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. The flexible erase architecture of the AT25DF321A-SH-B, with its erase granularity as small as 4-Kbytes, makes it ideal for data storage as well, eliminating the need for additional data storage EEPROM devices.

Parametrics

AT25DF321A-SH-B absolute maximum ratings: (1)Temperature under Bias: -55℃ to +125℃ ; (2)Storage Temperature: -65℃ to +150℃; (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

AT25DF321A-SH-B features: (1)Single 2.7V - 3.6V Supply; (2)Serial Peripheral Interface (SPI) Compatible: Supports SPI Modes 0 and 3; Supports RapidS Operation; Supports Dual-Input Program and Dual-Output Read; (3)Very High Operating Frequencies: 100 MHz for RapidS; 85 MHz for SPI; Clock-to-Output (tV) of 5 ns Maximum; (4)Flexible, Optimized Erase Architecture for Code + Data Storage Applications: Uniform 4-Kbyte Block Erase; Uniform 32-Kbyte Block Erase; Uniform 64-Kbyte Block Erase; Full Chip Erase; (5)64 Sectors of 64-Kbytes Each; (6)Hardware Controlled Locking of Protected Sectors via WP Pin; (7)Sector Lockdown; (8)Make Any Combination of 64-Kbyte Sectors Permanently Read-Only; (9)128-Byte Programmable OTP Security Register; (10)Flexible Programming: Byte/Page Program (1 to 256 Bytes); (11)Fast Program and Erase Times; (12)Program and Erase Suspend/Resume; (13)Automatic Checking and Reporting of Erase/Program Failures; (14)Software Controlled Reset; (15)JEDEC Standard Manufacturer and Device ID Read Methodology; (16)Low Power Dissipation; (17)Endurance: 100,000 Program/Erase Cycles; (18)Data Retention: 20 Years; (19)Complies with Full Industrial Temperature Range.

Diagrams

AT25DF321A-SH-B block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
AT25DF321A-SH-B
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Data Sheet

0-1: $1.50
1-10: $1.39
10-25: $1.25
25-100: $1.07
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