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Step 1: Microchip’s Serial EEPROM Overview
Serial EEPROMs
Microchip’s Serial EEPROM products are compatible with four serial bus types and support densities that range from 128 bits up to 1 Mbits. These bus types include the standard two wire I2C™, three wire Microwire, four wire SPI and the new single I/O, UNI/O™ bus. As Microchip’s EEPROMs are compatible with the de facto industry standards, they can be used as drop-in replacements for competitor devices in most cases. By supporting a wide operating voltage range from 1.7 volts up to 5.5 volts and a wide temperature range from -40oC to 125oC almost all applications are supported. For new designs, Microchip's value-added features include smaller footprints, lower power consumption, lower voltage levels (down to 1.5V), faster bus rates and higher endurance levels help ensure truly robust designs of the highest quality.
Microchip has been at the forefront of Serial EEPROM innovation - Along with ensuring highest quality products, today we offer a new family of single I/O UNI/O™ EEPROM devices, the lowest voltage EEPROMs at 1.5V, the fastest bus speed on the SPI at 20MHz and provide the industry’s lowest operating current which ensures lower power consumption. Microchip also recently launched a family of MAC address chips each of which are pre-programmed with unique EUI-48™ and EUI-64™ node addresses.
Packages Supported
Microchip serial EEPROMs are packaged at Microchip's own facilities and by authorized subcontractors. After packaging, whether in-house or at an outside subcontractor, every device is 100% tested thrice prior to shipment. Microchip excels at micro-miniature packaging for serial EEPROMs and currently supports the following packages:
PACKAGE (size)
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Code
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I2C™
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UNI/O™
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MICROWIRE
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SPI
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8-Lead PDIP (8x9.5)
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P
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128 bits – 1M
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1K-16K
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1K – 16K
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1K – 1M
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8-Lead SOIC (5x6)
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SN
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128 bits – 1M
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1K-16K
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1K – 16K
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1K – 1M
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8-Lead TSSOP (3x6.5)
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ST
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128 bits – 512K
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NA
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1K – 16K
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1K – 256K
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8-Lead MSOP (3x5)
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MS
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128 bits – 256K
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1K-16K
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1K – 16K
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1K – 64K
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8-Lead DFN, T-DFN (2x3)
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MC, MNY
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128 bits – 128K
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1K-16K
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1K – 16K
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1K – 64K
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8-Lead DFN-S (5x6)
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MF
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128K – 512K
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NA
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NA
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64K – 1M
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3-Lead SOT-23 (3x3)
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OT
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NA
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1K-16K
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NA
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NA
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5-Lead SOT-23 (3x3)
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OT
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128 bits – 64K
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NA
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NA
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NA
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6-Lead SOT-23 (3x3)
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TT
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NA
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NA
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1K – 16K
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1K – 4K
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5-Lead SC70 (2x2)
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LT
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1K-2K
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NA
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NA
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NA
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WLCSP (~die sized)
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CS16K
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4K-512K
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NA
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NA
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NA
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Click here for up to date package information. We also support all parts in wafers.
Advantages
• Standby current less than 1 uAmp and industry’s lowest operating current. (low power)
• Erase / Write endurance levels exceeding 1 million cycles and over 200 years Data retention.
• Low-voltage / high-frequency support with 400 KHz I2C™ devices at 1.7 volts.
• Small package leader with the 2K I2C device in the 5-lead SC70, 3-lead SOT-23 on the new UNI/O™ bus, a 128 Kbit I2C device in the 2x3 DFN, WLCSP as well as 64 Kbit I2C device in the SOT-23.
• Ensure highest quality by testing all devices 3 times before shipping.
• Die and wafer support available.
• Industry’s shortest lead times, excellent delivery
• Excellent Engineering, Customer and tools support.
Step 2: How To Select Your Serial EEPROM
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