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AT34C04

4Kb I2C compatible Serial Present Detect (SPD) Serial EEPROM for DDR4 DIMM modules

Status: In Production

Features:

  • 512 x 8 (4 Kbit)
  • 400 kHz and 1 MHz clock compatibility
  • Supports up to 8 devices on the bus
  • JEDEC JC42.4 (EE1004-v) Serial Presence Detect (SPD) Compliant
  • Individually reversible software write protection on all four 128-byte quadrants 
  • Software procedure to verify each quadrant’s write protection status
  • Self-Timed Erase and Write Cycles (5 ms max.)
  • Read current 0.4 mA (Typ), 1 mA (Max)
  • Write current 1.5 mA (Typ), 3 mA (Max)
  • Standby current 4 uA (Max)
  • Hardware Write-Protect Pin
  • More than 1 million erase/write cycles
  • Data retention > 100 years
  • Available in 8-lead JEDEC SOIC, 8-lead TSSOP, and 8-pad UDFN 
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Overview
Documents
Development Environment
Similar Devices
RoHS Information
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Device Overview

Summary

The Microchip AT34C04 is a 4 Kb Serial EEPROM utilizing an I2C (2-wire) serial interface. The device is organized as one block of 512 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 with an operating range of 1.7 to 3.6V.

The AT34C04 is tailored specifically for DRAM memory modules with Serial Presence Detect (SPD). The device incorporates a Reversible Software Write Protection (RSWP) feature enabling the capability to selectively write protect any or all of the four 128-byte quadrants.

Additional Features
    • 512 x 8 (4 Kbit)
    • 2-Wire Serial Interface, I2C Compatible
      • 400 kHz and 1 MHz clock compatibility
      • Supports up to 8 devices on the bus
    • JEDEC JC42.4 (EE1004-v) Serial Presence Detect (SPD) Compliant
    • Advanced Software Data Protection Features 
      • Individually reversible software write protection on all four 128-byte quadrants 
      • Software procedure to verify each quadrant’s write protection status
    • Self-Timed Erase and Write Cycles (5 ms max.)
    • Low Power Consumption
      • Read current 0.4 mA (Typ), 1 mA (Max)
      • Write current 1.5 mA (Typ), 3 mA (Max)
      • Standby current 4 uA (Max)
    • Hardware Write-Protect Pin
    • More than 1 million erase/write cycles
    • Data retention > 100 years
    • Available in 8-lead JEDEC SOIC, 8-lead TSSOP, and 8-pad UDFN 
Parametrics
Name
Value
Density
4K bits
Op. Volt Range (V)
1.7 to 3.6
Max. Clock Freq.
1 MHz
Page Size (bytes)
16
Endurance
1,000,000

Documents

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Data Sheet

02/09/2017
1380KB

Brochures


Development tools data is currently unavailable.

Similar Devices

Product
Memory Size
Memory Speed
Package
Price 5K
4K bits (x8)
1 MHz
PDIP-8, SOIC 150mil-8, TDFN-8, TSSOP-8, UDFN-8
$0.21
 
1 MHz
SOIC-8, TSSOP-8, UDFN-8
$0.17

RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
AT34C04-SS5M-B
0.075000
0.163265
8
SOIC
3.90mm(.150in)
NiPdAu
e4
AT34C04-SS5M-T
0.075000
0.250000
8
SOIC
3.90mm(.150in)
NiPdAu
e4
AT34C04-X5M-B
0.035800
0.190000
8
TSSOP
4.4mm
NiPdAu
e4
AT34C04-X5M-T
0.035800
0.199200
8
TSSOP
4.4mm
NiPdAu
e4
AT34C04-MA5M-E
0.009600
0.084000
8
UDFN
2x3x0.6mm
NiPdAu
e4
AT34C04-MA5M-T
0.009600
0.084000
8
UDFN
2x3x0.6mm
NiPdAu
e4
AT34C04-MA5MNK-T
0.009600
0.084000
8
UDFN
2x3x0.6mm
NiPdAu
e4
AT34C04-MA5M-T-452
0.009600
0.084000
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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