Microchip Technology Inc
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AT34C02D

2Kb I2C compatible Serial Present Detect (SPD) Serial EEPROM for DDR3 DIMM modules

Status: In Production

Features:

  • 256 x 8 (2 Kbit)
  • 400 kHz and 1 MHz (5V) clock compatibility
  • Supports up to 8 devices on the bus
  • EEPROM Specification for use in DDR, DDR2, and DDR3 DIMM Modules
  • Self-Timed Erase and Write Cycles (5 ms max.)
  • Read current 1 mA (Typ), 2 mA (Max)
  • Write current 2 mA (Typ), 3 mA (Max)
  • Standby current 6 uA (Max)
  • Hardware Write-Protect Pin
  • More than 1 million erase/write cycles
  • Data retention > 100 years
  • Available in 8-pad 2x3mm UDFN, 8-lead TSSOP, 8-lead JEDEC SOIC, and 8-ball VFBGA Packages
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Overview
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Development Environment
Similar Devices
RoHS Information
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Device Overview

Summary

The Microchip AT34C02D is a 2 Kb Serial EEPROM utilizing an I2C (2-wire) serial interface. The device is organized as one block of 256 x 8 and is optimized for use in consumer and industrial applications where reliable and dependable nonvolatile memory storage is essential. The EEPROM is available in a variety of space-saving packaging options.

The AT34C02D is designed to support the JEDEC EE1002 and EE1002A Serial Presence Detect (SPD) function used in DDR, DDR2, and DDR3 Dual Inline Memory Modules (DIMM). In order to comply with this standard, the device includes a software write protection feature for the lower 128 bytes of the EEPROM that can be made permanent.

Additional Features
    • 256 x 8 (2 Kbit)
    • 2-Wire Serial Interface, I2C Compatible
      • 400 kHz and 1 MHz (5V) clock compatibility
      • Supports up to 8 devices on the bus
    • JEDEC EE1002 and EE1002A Serial Presence Detect (SPD) Compliant 
      • EEPROM Specification for use in DDR, DDR2, and DDR3 DIMM Modules
    • Self-Timed Erase and Write Cycles (5 ms max.)
    • Low Power Consumption
      • Read current 1 mA (Typ), 2 mA (Max)
      • Write current 2 mA (Typ), 3 mA (Max)
      • Standby current 6 uA (Max)
    • Hardware Write-Protect Pin
    • More than 1 million erase/write cycles
    • Data retention > 100 years
    • Available in 8-pad 2x3mm UDFN, 8-lead TSSOP, 8-lead JEDEC SOIC, and 8-ball VFBGA Packages
Parametrics
Name
Value
Density
2K bits
Op. Volt Range (V)
1.7 to 5.5
Max. Clock Freq.
1 MHz
Page Size (bytes)
16
Temp Range (°C)
-40°C to +85°C
Endurance
1,000,000

Documents

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
AT34C02D-SSHM-T
0.078000
0.230303
8
SOIC
.150In(3.90mm)
Matte Tin
e3
AT34C02D-SSHM-B
0.078000
0.160000
8
SOIC
.150In(3.90mm)
Matte Tin
e3
AT34C02D-XHM-T-989
0.035800
0.199200
8
TSSOP
4.4mm
NiPdAu
e4
AT34C02D-XHM-B
0.035800
0.190000
8
TSSOP
4.4mm
NiPdAu
e4
AT34C02D-XHM-T
0.035800
0.199200
8
TSSOP
4.4mm
NiPdAu
e4
AT34C02D-MAHM-T
0.009600
0.538600
8
UDFN
2x3x0.6mm
NiPdAu
e4
AT34C02D-MAHM-T-452
0.009600
0.538600
8
UDFN
2x3x0.6mm
NiPdAu
e4
AT34C02D-MAHM-E
0.009600
0.538600
8
UDFN
2x3x0.6mm
NiPdAu
e4
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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