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AT25320B

32Kb SPI Serial EEPROM

Status: In Production

Features:

  • 4096 x 8-bit (32 Kbit)
  • Supports SPI modes 0 and 3
  • Up to 20 MHz clock frequency
  • Self-Timed Erase and Write Cycles (5 ms max.)
  • Read current: 6 mA (Max) at 5 MHz
  • Write current: 6 mA (Max) at 5 MHz
  • Standby current: 6 μA (Max) at 1.8V, 10 μA (Max) at 5 V
  • Block Write Protection: Protect 1/4, 1/2 or Entire Array
  • More than 1 million erase/write cycles
  • Data retention 100 years
  • Automotive Grade 1: -40°C to 125°C
  • Automotive Grade 2: -40°C to 105°C
  • Automotive Grade 3 / Industrial: -40°C to 85°C
  • Automotive AECQ-100 Qualified1
  • Factory Programming Available
  • Available in standard packages including 8-lead SOIC, and advanced packages including 8-lead TSSOP, 8-lead 2x3 DFN, and 8-ball VFBGA
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Overview
Documents
Development Environment
Similar Devices
RoHS Information
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Device Overview

Summary

The Microchip AT25320B is a 32 Kb Serial EEPROM utilizing the industry standard Serial Peripheral Interface (SPI) compatible serial bus. The device is organized as one block of 4096 x 8-bit and is optimized for use in consumer electronics, industrial, medical, and automotive applications where reliable and dependable nonvolatile memory storage is essential. Software write protection allows the user to protect ¼, ½, or the entire memory array. A hardware write protect pin is also provided, which additionally protects against inadvertent writes to the status register. The EEPROM is available in a variety of space-saving packaging options.

For product comparison, please consider: 25AA320A

Additional Features
    • 4096 x 8-bit (32 Kbit)
    • Serial Peripheral Interface (SPI) Compatible
      • Supports SPI modes 0 and 3
      • Up to 20 MHz clock frequency
    • Self-Timed Erase and Write Cycles (5 ms max.)
    • Low Power Consumption
      • Read current: 6 mA (Max) at 5 MHz
      • Write current: 6 mA (Max) at 5 MHz
      • Standby current: 6 μA (Max) at 1.8V, 10 μA (Max) at 5 V
    • Block Write Protection: Protect 1/4, 1/2 or Entire Array
    • More than 1 million erase/write cycles
    • Data retention 100 years
    • Temperature Ranges Available
      • Automotive Grade 1: -40°C to 125°C
      • Automotive Grade 2: -40°C to 105°C
      • Automotive Grade 3 / Industrial: -40°C to 85°C
    • Automotive AECQ-100 Qualified1
    • Factory Programming Available
    • Available in standard packages including 8-lead SOIC, and advanced packages including 8-lead TSSOP, 8-lead 2x3 DFN, and 8-ball VFBGA

    1Consult Automotive datasheet for device specification and ordering part number

Parametrics
Name
Value
Density
32 Kbit
Op. Volt Range (V)
1.8 to 5.5
Max. Clock Freq.
20 MHz
Page Size (bytes)
32
Write Protect
Quarter, Half, Whole Array
Temp Range (°C)
-40°C to +125°C
Endurance
1,000,000
Bus Modes
SPI

Documents

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Board Design Files

Development Environment

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Dimension
Solder Composition
JEDEC Indicator
RoHS
China EFUP
AT25320B-WWU11L
0.000000
1000.000
0
Wafer
Varies
-
-
AT25320B-XHL-B
0.035800
0.190000
8
TSSOP
4.4mm
NiPdAu
e4
AT25320B-XHL-B-899
0.035800
0.190000
8
TSSOP
4.4mm
NiPdAu
e4
AT25320B-XHL-T-899
0.035800
0.199200
8
TSSOP
4.4mm
NiPdAu
e4
AT25320B-XPD-T
0.035800
0.199200
8
TSSOP
4.4mm
NiPdAu
e4
AT25320B-XHL-T
0.035800
0.199200
8
TSSOP
4.4mm
NiPdAu
e4
AT25320B-XPDGV-T
0.035800
0.199200
8
TSSOP
4.4mm
NiPdAu
e4
AT25320B-MAHL-E
0.009600
0.084000
8
UDFN
2x3x0.6mm
NiPdAu
e4
AT25320B-MAHL-T-899
0.009600
0.084000
8
UDFN
2x3x0.6mm
NiPdAu
e4
AT25320B-MAHL-T
0.009600
0.084000
8
UDFN
2x3x0.6mm
NiPdAu
e4
AT25320B-SSHL-T
0.075000
0.250000
8
SOIC
3.90mm(.150in)
NiPdAu
e4
AT25320B-SSPD-T
0.075000
0.250000
8
SOIC
3.90mm(.150in)
NiPdAu
e4
AT25320B-SSHL-T-537
0.075000
0.250000
8
SOIC
3.90mm(.150in)
NiPdAu
e4
AT25320B-SSHL-B-899
0.075000
0.163265
8
SOIC
3.90mm(.150in)
NiPdAu
e4
AT25320B-SSHL-T-899
0.075000
0.250000
8
SOIC
3.90mm(.150in)
NiPdAu
e4
AT25320B-SSHL-B
0.075000
0.163265
8
SOIC
3.90mm(.150in)
NiPdAu
e4
AT25320B-SSPDGV-T
0.075000
0.250000
8
SOIC
3.90mm(.150in)
NiPdAu
e4
AT25320B-CUL-T
0.013200
0.000000
8
VFBGA
2.35x3.73x1mm
SAC405
e1
AT25320B-MEHL-T
0.003300
0.000000
8
XDFN
1.8x2.2x0.4mm
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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