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AT28C64B

5V 64Kbit (8Kbit x 8) Parallel EEPROM with Software Data Protection

Status: In Production

Features:

  • 8 Kbits x 8 (64 Kbit)
  • 5V ±10% Supply
  • Parallel Interface
  • 150ns access time
  • Self-Timed Erase and Write Cycles (10 ms max)
  • Page Write and Byte Write
  • Data Polling for end of write detection
  • Low Power Consumption
  • Read / Write current 40 mA (Max)
  • Standby current TTL 2 mA (Max), CMOS 100 μA (Max)
  • Hardware Protection
  • Software Data Protect
  • More than 100,000 erase/write cycles
  • Data retention > 10 years
  • Temperature Ranges
  • Standard Temperature Range: -40°C to 85°C
  • Available in Green (Pb/Halide-free) Packaging Only
  • 32-lead, Plastic J-leaded Chip Carrier (PLCC)
  • 28-lead, 0.600" Wide, Plastic Dual Inline Package (PDIP)
  • 28-lead, 0.300" Wide, Plastic Gull Wing Small Outline (SOIC)
  • 28-lead, Plastic Thin Small Outline Package (TSOP)
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Overview
Documents
Development Environment
Similar Devices
RoHS Information
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Device Overview

Summary

The Microchip AT28C64B is a high-performance 64Kbit Parallel EEPROM offering access times to 150ns with power dissipation of 220mW. Deselected, CMOS standby current is less than 100µA. Accessed like static RAM for the read or write cycle without external components, it contains a 64-byte page register to allow writing of up to 64 bytes simultaneously. Optional Software Data Protection mechanism guards against inadvertent writes; and an extra 64 bytes of EEPROM enables device identification or tracking.

Additional Features
    • 8 Kbits x 8 (64 Kbit)
    • 5V ±10% Supply
    • Parallel Interface
      • 150ns access time
    • Self-Timed Erase and Write Cycles (10 ms max)
      • Page Write and Byte Write
      • Data Polling for end of write detection
    • Low Power Consumption
      • Read / Write current 40 mA (Max)
      • Standby current TTL 2 mA (Max), CMOS 100 μA (Max)

      • Write-Protection

        • Hardware Protection

        • Software Data Protect
      • More than 100,000 erase/write cycles
      • Data retention > 10 years
      • Temperature Ranges
        • Standard Temperature Range: -40°C to 85°C
      • Available in Green (Pb/Halide-free) Packaging Only
        • 32-lead, Plastic J-leaded Chip Carrier (PLCC)
        • 28-lead, 0.600" Wide, Plastic Dual Inline Package (PDIP)
        • 28-lead, 0.300" Wide, Plastic Gull Wing Small Outline (SOIC)
        • 28-lead, Plastic Thin Small Outline Package (TSOP)
Parametrics
Name
Value
Density
64Kb
Op. Volt Range (V)
4.5 to 5.5
Max. Clock Freq.
.
Read Access Time
150ns
Page Size (bytes)
64
Endurance
100000
Data Retention (Years)
10

Documents

Jump to:

Data Sheet

Getting Started

07/01/2014
114KB

Development tools data is currently unavailable.

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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
AT28C64B-15JU-235
1.129000
1.896000
32
PLCC
11.5x14x3.37mm
Matte Tin
e3
AT28C64B-15JU-T
1.129000
1.896000
32
PLCC
11.5x14x3.37mm
Matte Tin
e3
AT28C64B-15JU
1.129000
2.333333
32
PLCC
11.5x14x3.37mm
Matte Tin
e3
AT28C64B-15TU
0.232100
1.696581
28
TSOP
8x11.8x1mm
Matte Tin
e3
AT28C64B-15TU-T
0.232100
0.048000
28
TSOP
8x11.8x1mm
Matte Tin
e3
AT28C64B-15SU-T
0.770400
1.152500
28
SOIC
.300in
Matte Tin
e3
AT28C64B-15SU
0.770400
1.370370
28
SOIC
.300in
Matte Tin
e3
AT28C64B-15PU
4.066700
3.733333
28
PDIP
.600in
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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