93LC66 Series 4 Kbit (256 x 16) 5.5 V Microwire Compatible Serial EEPROM -SOIC-8

Mfr Part#: 93LC66BT-I/SN
Mounting Method:  Surface Mount
Package Style:  SOIC-8
Packaging:  REEL
Std Packaging Qty:  3,300




$0.2250 USD (each)
3300+ $0.2250


Qty in Stock : 3,300
Factory Stock : 0
Factory Lead-Time: 14 Weeks
Min. Order Qty: 3,300
Multiple of: 3,300
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Product Highlight

  • Memory Density: 4 kb
  • Memory Organization: 256 x 16
  • Supply Voltage-Nom: 2.5 to 5.5 V
  • Clock Frequency-Max: 2 MHz
  • Write Cycle Time-Max (tWC): 6 ms

The 93XX66A/B/C devices are 4 Kbit low-voltage serial Electrically Erasable PROMs (EEPROM). Word-selectable devices such as the 93AA66C, 93LC66C or 93C66C are dependent upon external logic levels driving the ORG pin to set word size. For dedicated 8-bit communication, the 93XX66A devices are available, while the 93XX66B devices provide dedicated 16-bit communication.

Advanced CMOS technology makes these devices ideal for low-power, nonvolatile memory applications. The entire 93XX Series is available in standard packages including 8-lead PDIP and SOIC, and advanced packaging including 8-lead MSOP, 6-lead SOT-23, 8-lead 2x3 DFN and 8-lead TSSOP. All packages are Pb-free (Matte Tin) finish.


  • Low-Power CMOS Technology
  • ORG Pin to Select Word Size for ‘66C’ Version
  • 512 x 8-bit Organization ‘A’ Devices (no ORG)
  • 256 x 16-bit organization ‘B’ Devices (no ORG)
  • Self-tImed Erase/Write Cycles (including Auto-Erase)
  • Automatic Erase All (ERAL) Before Write All (WRAL)
  • Power-On/Off Data Protection Circuitry
  • Industry Standard 3-Wire Serial I/O
  • Device Status Signal (Ready/Busy)
  • Sequential Read Function
  • 1,000,000 Erase/Write Cycles
  • Data Retention > 200 Years
  • Temperature ranges supported:
    • Industrial (I) -40ºC to +125ºC

Learn more about the 93LC66 family of EEPROM

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