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AT93C66B

4Kb Microwire (3-wire) Serial EEPROM

Status: In Production

Features:

  • User selectable 512 x 8 or 256 x 16 Organization (4 Kbit)
  • Industry Standard Microwire Serial I/O
  • Up to 2 MHz clock compatibility
  • Self-Timed Erase and Write Cycles (5 ms max.)
  • Read current 0.5 mA (Typ), 2.0 mA (Max)
  • Write current 0.5 mA (Typ),2.0 mA (Max)
  • Standby current 10.0 uA (Typ), 15.0 uA (Max)
  • Software Write-Protection
  • More than 1 million erase/write cycles
  • Data retention > 100 years
  • Grade 1 Temperature Range: -40°C to 125°C
  • Qualified for Automotive Applications
  • Factory Programming Available
  • Available in 8-pin SOIC (150 mil), 8-pin TSSOP, 8-pad UDFN, 8-pad XDFN, 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 AT93C66B is a 4 Kb Microwire (3-wire) Serial EEPROM organized as either 512 x 8 or 256 x 16, selectable in hardware using the ORG pin. The device is optimized for use in consumer, industrial, and automotive applications where reliable and dependable nonvolatile memory storage is essential. The EEPROM is available in a variety of space-saving packaging options.

Additional Features
    • User selectable 512 x 8 or 256 x 16 Organization (4 Kbit)
    • Industry Standard Microwire Serial I/O
    • Up to 2 MHz clock compatibility
    • Self-Timed Erase and Write Cycles (5 ms max.)
    • Low Power Consumption
      • Read current 0.5 mA (Typ), 2.0 mA (Max)
      • Write current 0.5 mA (Typ),2.0 mA (Max)
      • Standby current 10.0 uA (Typ), 15.0 uA (Max)
    • Software Write-Protection
    • More than 1 million erase/write cycles
    • Data retention > 100 years
    • Extended Temperature Ranges Available (Grade 1 as defined in AEC-Q100)
      • Grade 1 Temperature Range: -40°C to 125°C
    • Qualified for Automotive Applications
    • Factory Programming Available
    • Available in 8-pin SOIC (150 mil), 8-pin TSSOP, 8-pad UDFN, 8-pad XDFN, and 8-ball VFBGA packages
Parametrics
Name
Value
Density
4K bits (x8 or x16)
Op. Volt Range (V)
1.7 to 5.5
Max. Clock Freq.
2 MHz
Temp Range (°C)
-40°C to +125°C
Endurance
1,000,000

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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
AT93C66B-XHM-B
0.035800
0.190000
8
TSSOP
4.4mm
NiPdAu
e4
AT93C66B-MAHM-E
0.009600
0.084000
8
UDFN
2x3x0.6mm
NiPdAu
e4
AT93C66B-MAHM-T
0.009600
0.084000
8
UDFN
2x3x0.6mm
NiPdAu
e4
AT93C66B-XPD-T
0.035800
0.199200
8
TSSOP
4.4mm
NiPdAu
e4
AT93C66B-XHM-T
0.035800
0.199200
8
TSSOP
4.4mm
NiPdAu
e4
AT93C66B-SSHM-T
0.078000
0.230303
8
SOIC
.150In(3.90mm)
Matte Tin
e3
AT93C66B-SSHM-B
0.078000
0.250000
8
SOIC
.150In(3.90mm)
Matte Tin
e3
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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