AT45DB021B-RI The Microchip Technology AT45DB021B-RI is a 2Mbit serial SPI Flash memory IC. It operates with a single 2.7V to 3.6V supply and features a maximum clock frequency of 20 MHz.
Mfr Part #:

AT45DB021B-RI

Available from 1 distributors
Mfr Name: Microchip Technology
Microchip Technology
The Microchip Technology AT45DB021B-RI is a 2Mbit serial SPI Flash memory IC. It operates with a single 2.7V to 3.6V supply and features a maximum clock frequency of 20 MHz.
✓ Total Stock: 7,232 pcs
$ Price Range: $1.28

AT45DB021B-RI Available from 1 distributor

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✓ Non-Authorised
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7,232 pcs
7232 pcs On Request 1 On Request On Request On Request On Request On Request

AT45DB021B-RI Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Clock Frequency
Memory Format
Memory Interface
Memory Organization
Memory Size
Memory Type
Mounting Type
Operating Temperature
Supplier Device Package
Technology
Voltage
Write Cycle Time

AT45DB021B-RI Description

Short technical summary and product information.

The AT45DB021B-RI is a 2Mbit serial interface Flash memory from Microchip Technology, designed for digital voice, image, program code, and data storage applications. It operates from a single 2.7V to 3.6V supply and supports SPI compatible interface modes 0 and 3, with a maximum clock frequency of 20 MHz.

 

This Flash memory is organized into 1024 pages, each containing 264 bytes, for a total of 2,162,688 bits. It includes two 264-byte SRAM data buffers that allow data reception while reprogramming the main memory, enabling continuous read capabilities ideal for code shadowing. The device also supports page and block erase operations.

 

Designed for ease of in-system reprogrammability, the AT45DB021B-RI does not require high input voltages for programming. It is optimized for applications requiring high density, low pin count, low voltage, and low power consumption. The typical active read current is 4 mA, with a typical CMOS standby current of 2 µA.

 

The AT45DB021B-RI is available in a 28-SOIC surface mount package. It operates within a temperature range of -40°C to 85°C (TC). The device features 5.0V-tolerant inputs for SI, SCK, CS, RESET, and WP pins, enhancing system reliability.

AT45DB021B-RI Quick Information

Product Type: Flash Memory
Canonical Name: AT45DB021B-RI Serial Flash Memory
Subcategory: Serial Flash

AT45DB021B-RI Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

AT45DB021B-RI Estimated Pricing

Qty Low High
1+ $1.28 $1.28

Estimated market price range - modelled values for guidance only, not live distributor offers.

AT45DB021B-RI Features

  • 2Mbit serial SPI Flash memory.
  • Single 2.7V to 3.6V supply.
  • 20 MHz maximum clock frequency.
  • 1024 pages of 264 bytes each.
  • 28-SOIC surface mount package.

AT45DB021B-RI Applications

  • Ideal for code shadowing applications.
  • Suitable for digital voice storage.
  • Used for image data storage.
  • Program code storage applications.
  • General data storage needs.

AT45DB021B-RI FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the AT45DB021B-RI?

2.7V to 3.6V.

What is the memory size of the AT45DB021B-RI?

2 Mbit.

What interface does the AT45DB021B-RI use?

SPI.

What is the clock frequency of the AT45DB021B-RI?

20 MHz.

What is the operating temperature range of the AT45DB021B-RI?

-40°C to 85°C.

What is the package type of the AT45DB021B-RI?

28-SOIC (0.342", 8.69mm Width).

What is the write cycle time of the AT45DB021B-RI?

14 ms.

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