Part Details for AT45DB021B-SC by Microchip Technology Inc
Results Overview of AT45DB021B-SC by Microchip Technology Inc
- Distributor Offerings: (0 listings)
- Number of FFF Equivalents: (3 replacements)
- CAD Models: (Request Part)
- Number of Functional Equivalents: (10 options)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.
Applications
Consumer Electronics
Internet of Things (IoT)
Computing and Data Storage
AT45DB021B-SC Information
AT45DB021B-SC by Microchip Technology Inc is a Flash Memory.
Flash Memories are under the broader part category of Memory Components.
Memory components are essential in electronics for computer processing. They can be volatile or non-volatile, depending on the desired function. Read more about Memory Components on our Memory part category page.
Part Details for AT45DB021B-SC
AT45DB021B-SC CAD Models
AT45DB021B-SC Part Data Attributes
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AT45DB021B-SC
Microchip Technology Inc
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Datasheet
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AT45DB021B-SC
Microchip Technology Inc
Flash, 256KX8, PDSO8
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| Part Life Cycle Code | Obsolete | |
| Ihs Manufacturer | MICROCHIP TECHNOLOGY INC | |
| Package Description | SOIC-8 | |
| Reach Compliance Code | unknown | |
| Samacsys Manufacturer | Microchip | |
| Additional Feature | ORGANIZED AS 1024 PAGES OF 264 BYTES EACH | |
| Clock Frequency-Max (fCLK) | 20 MHz | |
| Endurance | 100000 Write/Erase Cycles | |
| JESD-30 Code | R-PDSO-G8 | |
| Length | 5.29 mm | |
| Memory Density | 2097152 bit | |
| Memory IC Type | FLASH | |
| Memory Width | 8 | |
| Number of Functions | 1 | |
| Number of Terminals | 8 | |
| Number of Words | 262144 words | |
| Number of Words Code | 256000 | |
| Operating Mode | SYNCHRONOUS | |
| Operating Temperature-Max | 70 °C | |
| Operating Temperature-Min | ||
| Organization | 256KX8 | |
| Output Characteristics | 3-STATE | |
| Package Body Material | PLASTIC/EPOXY | |
| Package Code | SOP | |
| Package Equivalence Code | SOP8,.3 | |
| Package Shape | RECTANGULAR | |
| Package Style | SMALL OUTLINE | |
| Parallel/Serial | SERIAL | |
| Programming Voltage | 3.3 V | |
| Seated Height-Max | 2.16 mm | |
| Serial Bus Type | SPI | |
| Standby Current-Max | 0.00001 A | |
| Supply Current-Max | 0.035 mA | |
| Supply Voltage-Max (Vsup) | 3.6 V | |
| Supply Voltage-Min (Vsup) | 2.7 V | |
| Supply Voltage-Nom (Vsup) | 3.3 V | |
| Surface Mount | YES | |
| Technology | CMOS | |
| Temperature Grade | COMMERCIAL | |
| Terminal Form | GULL WING | |
| Terminal Pitch | 1.27 mm | |
| Terminal Position | DUAL | |
| Type | NOR TYPE | |
| Width | 5.24 mm | |
| Write Protection | HARDWARE |
Alternate Parts for AT45DB021B-SC
This table gives cross-reference parts and alternative options found for AT45DB021B-SC. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of AT45DB021B-SC, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.
| Part Number | Manufacturer | Composite Price | Description | Compare |
|---|---|---|---|---|
| AT45DB021B-SJ | Atmel Corporation | Check for Price | Flash, 2MX1, PDSO8, 0.209 INCH, PLASTIC, EIAJ, SOIC-8 | AT45DB021B-SC vs AT45DB021B-SJ |
| AT45DB021B-SI | Microchip Technology Inc | Check for Price | Flash, 256KX8, PDSO8 | AT45DB021B-SC vs AT45DB021B-SI |
| AT45DB021B-SU | Atmel Corporation | Check for Price | Flash, 2MX1, PDSO8, 0.209 INCH, GREEN, PLASTIC, EIAJ, SOIC-8 | AT45DB021B-SC vs AT45DB021B-SU |
AT45DB021B-SC Frequently Asked Questions (FAQ)
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The AT45DB021B-SC has a minimum of 100,000 erase cycles per sector, and a total of 2,000,000 erase cycles for the entire device.
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To handle page write buffer underrun or overrun errors, ensure that the correct number of bytes is written to the page buffer, and use the status register to check for errors after each write operation.
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After power-up, the device should be reset by pulling the Reset pin low for at least 10 ns. Then, the device should be initialized by sending a command sequence to set the buffer size and configure the device for operation.
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The optimal buffer size depends on the specific application requirements. A larger buffer size can improve performance, but it also increases the risk of data loss in case of power failure. A buffer size of 528 bytes is recommended for most applications.
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The Ready/Busy pin (RDY/BUSY) indicates the status of the device. When the pin is low, the device is busy with an internal operation and cannot accept commands. When the pin is high, the device is ready to accept commands. The pin should be monitored to ensure that commands are not sent to the device while it is busy.