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Home > Embedded ICs > Embedded - Memory > AT28C256-15PC
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AT28C256-15PC

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AT28C256-15PC Overview

High-performance 256K EEPROM offers access times to 150ns with power dissipation of 440mW. Deselected, CMOS standby current is less than 200μA .It is 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 64bytes simultaneously.The EEPROM features Internal error correction for extended endurance and improved data retention. Optional software data protection mechanism guards against inadvertent writes, and an extra 64 bytes of EEPROM enables device identification or tracking.

Features

  • 32 Kbits x 8 (256 Kbit)
  • 5V ± 10% Supply
  • Parallel Interface
  • AT28C256E - High Endurance 100K Write Cycles Option
  • AT28C256F - 3 ms Fast Write Option
  • 150ns access time
  • Self-Timed Erase and Write Cycles (10 ms max)
  • Page Write and Byte Write
  • Data Polling for end of write detection
  • Available in Green (Pb/Halide-free) Packaging
  • Low Power Consumption
  • Read / Write current 40 mA (Max)
  • 32-lead, Plastic J-leaded Chip Carrier (PLCC)
  • Standby current TTL 2 mA (Max), CMOS 200 μA (Max)
  • Write-Protection
  • Hardware Protection
  • Software Data Protect
  • Data retention > 10 years
  • Temperature Ranges
  • Standard Temperature Range: -40°C to 85°C
  • Military Temperature Range: -55°C to 125°C
  • 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)
  • Available in SMD Dual marked (5962-88525xxxx) CERAMIC Hermetic Packaging
  • 28-Lead, 0.600" Wide, Non-Windowed, Ceramic Dual Inline (Cerdip)
  • 28-Lead, Non-Windowed, Ceramic Bottom-Brazed Flat Package (Flatpack)
  • 32-Pad, Non-windowed, Ceramic, Leadless Chip Carrier (LCC)

Specifications

  • Mounting Style Through Hole

  • Maximum Operating Current 50 mA

  • Organization 32 K x 8

  • Output Enable Access Time 70 ns

  • Minimum Operating Temperature 0 C

  • Supply Voltage - Min 4.5 V

  • Access Time 150 ns

  • Memory Size 256 Kbit

  • Package / Case PDIP-28

  • Operating Supply Voltage 4.5 V, 5.5 V

  • Maximum Operating Temperature + 70 C

  • Supply Voltage - Max 5.5 V

  • Interface Type SPI

  • Data Retention 10 yr

  • Operating Current 50 mA

  • Factory Pack Quantity 14

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