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AT25DF021_12 Datasheet, PDF (1/41 Pages) List of Unclassifed Manufacturers – 2-Megabit 2.3Volt or 2.7-Volt Minimum SPI Serial Falsh Memory | |||
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Features
⢠Single 2.3V - 3.6V or 2.7V - 3.6V Supply
⢠Serial Peripheral Interface (SPI) Compatible
â Supports SPI Modes 0 and 3
⢠66 MHz Maximum Operating Frequency
â Clock-to-Output (tV) of 6 ns Maximum
⢠Flexible, Optimized Erase Architecture for Code + Data Storage Applications
â Uniform 4-Kbyte Block Erase
â Uniform 32-Kbyte Block Erase
â Uniform 64-Kbyte Block Erase
â Full Chip Erase
⢠Individual Sector Protection with Global Protect/Unprotect Feature
â Four Sectors of 64 Kbytes Each
⢠Hardware Controlled Locking of Protected Sectors via WP Pin
⢠128-Byte Programmable OTP Security Register
⢠Flexible Programming
â Byte/Page Program (1 to 256 Bytes)
⢠Fast Program and Erase Times
â 1.0 ms Typical Page Program (256 Bytes) Time
â 50 ms Typical 4-Kbyte Block Erase Time
â 250 ms Typical 32-Kbyte Block Erase Time
â 450 ms Typical 64-Kbyte Block Erase Time
⢠Automatic Checking and Reporting of Erase/Program Failures
⢠JEDEC Standard Manufacturer and Device ID Read Methodology
⢠Low Power Dissipation
â 7 mA Active Read Current (Typical at 20 MHz)
â 15 μA Deep Power-Down Current (Typical)
⢠Endurance: 100,000 Program/Erase Cycles
⢠Data Retention: 20 Years
⢠Complies with Full Industrial Temperature Range
⢠Industry Standard Green (Pb/Halide-free/RoHS Compliant) Package Options
â 8-lead SOIC (150-mil Wide)
â 8-pad Ultra Thin DFN (5 x 6 x 0.6 mm)
2-Megabit
2.3-volt or
2.7-volt
Minimum
SPI Serial Flash
Memory
AT25DF021
(Not Recommended
for New Designs)
1. Description
The AT25DF021 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 shad-
owed from Flash memory into embedded or external RAM for execution. The flexible
erase architecture of the AT25DF021, 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.
3677FâDFLASHâ5/2013
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