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                                                                                                  1. Home
                                                                                                  2. Semiconductors - ICs
                                                                                                  3. Memory
                                                                                                  4. EEPROM
                                                                                                  Print Page

                                                                                                  AT28HC256-90JU

                                                                                                  EEPROM, 256 Kbit, 32K x 8bit, Parallel, 5 MHz, LCC, 32 Pins

                                                                                                  Date/Lot Code

                                                                                                  MICROCHIP AT28HC256-90JU
                                                                                                  Image is for illustrative purposes only. Please refer to product description.
                                                                                                  ManufacturerMICROCHIP
                                                                                                  Manufacturer Part NoAT28HC256-90JU
                                                                                                  Order Code3380396
                                                                                                  Product Range256Kbit Parallel EEPROM
                                                                                                  Technical Datasheet

                                                                                                  Data Sheet

                                                                                                  See all Technical Docs
                                                                                                  Available to Order
                                                                                                  Manufacturer Standard Lead Time: 8 week(s)

                                                                                                  Notify me when back in stock

                                                                                                  QuantityPrice (ex VAT)
                                                                                                  1+kr 150.480
                                                                                                  25+kr 144.960
                                                                                                  100+kr 139.210
                                                                                                  250+kr 136.460
                                                                                                  Price for:Each
                                                                                                  Minimum: 1
                                                                                                  Multiple: 1
                                                                                                  kr 150.48 (ex VAT)
                                                                                                  Enter Your Part No/Line Note
                                                                                                  Added to your Order Confirmation, Invoice, and Dispatch note for this order only.
                                                                                                  This number will be added to the Order Confirmation, Invoice, Dispatch note, Web confirmation Email and Product Label.

                                                                                                  Product Information

                                                                                                  ManufacturerMICROCHIP
                                                                                                  Manufacturer Part NoAT28HC256-90JU
                                                                                                  Order Code3380396
                                                                                                  Product Range256Kbit Parallel EEPROM
                                                                                                  Technical Datasheet

                                                                                                  Data Sheet

                                                                                                  Memory Density256Kbit
                                                                                                  Memory Configuration32K x 8bit
                                                                                                  InterfacesParallel
                                                                                                  Clock Frequency Max5MHz
                                                                                                  IC Case / PackageLCC
                                                                                                  No. of Pins32Pins
                                                                                                  Supply Voltage Min4.5V
                                                                                                  Supply Voltage Max5.5V
                                                                                                  IC MountingSurface Mount
                                                                                                  Operating Temperature Min-40°C
                                                                                                  Operating Temperature Max85°C
                                                                                                  Product Range256Kbit Parallel EEPROM
                                                                                                  SVHCNo SVHC (21-Jan-2025)

                                                                                                  Product Overview

                                                                                                  The AT28HC256-90JU is a 256k high-performance Electrically Erasable and Programmable Read-Only Memory (EEPROM) organized as 32768 words by 8-bit. Manufactured with advanced non-volatile CMOS technology, the AT28HC256 offers access times to 90ns with power dissipation of just 440mW. When the AT28HC256 is deselected, the standby current is less than 5mA. The AT28HC256 is accessed like a static RAM for the read or write cycle without the need for external components. The device contains a 64-byte page register to allow writing of up to 64-byte simultaneously. During a write cycle, the address and 1 to 64-byte of data are internally latched, freeing the addresses and data bus for other operations. Following the initiation of a write cycle, the device will automatically write the latched data using an internal control timer. The end of a write cycle can be detected by DATA Polling of I/O7. Once the end of a write cycle has been detected a new access for a read or write can begin.

                                                                                                  • Automatic page write operation
                                                                                                  • Internal control timer
                                                                                                  • Fast write cycle times
                                                                                                  • Low power dissipation
                                                                                                  • Hardware and software data protection
                                                                                                  • Data polling for end of write detection
                                                                                                  • High reliability CMOS technology
                                                                                                  • Endurance - 10⁴ or 10⁵ cycles
                                                                                                  • Data retention - 10 years
                                                                                                  • CMOS and TTL compatible inputs and outputs
                                                                                                  • JEDEC approved byte-wide pinout
                                                                                                  • Green product and no Sb/Br

                                                                                                  Warnings

                                                                                                  Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

                                                                                                  Technical Specifications

                                                                                                  Memory Density

                                                                                                  256Kbit

                                                                                                  Interfaces

                                                                                                  Parallel

                                                                                                  IC Case / Package

                                                                                                  LCC

                                                                                                  Supply Voltage Min

                                                                                                  4.5V

                                                                                                  IC Mounting

                                                                                                  Surface Mount

                                                                                                  Operating Temperature Max

                                                                                                  85°C

                                                                                                  SVHC

                                                                                                  No SVHC (21-Jan-2025)

                                                                                                  Memory Configuration

                                                                                                  32K x 8bit

                                                                                                  Clock Frequency Max

                                                                                                  5MHz

                                                                                                  No. of Pins

                                                                                                  32Pins

                                                                                                  Supply Voltage Max

                                                                                                  5.5V

                                                                                                  Operating Temperature Min

                                                                                                  -40°C

                                                                                                  Product Range

                                                                                                  256Kbit Parallel EEPROM

                                                                                                  Technical Docs (3)

                                                                                                  Product Change Notice EN

                                                                                                  CAD CadSoft_EAGLE EN

                                                                                                  Technical Data Sheet EN

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                                                                                                  Legislation and Environmental

                                                                                                  Country of Origin:
                                                                                                  Country in which last significant manufacturing process was carried outCountry of Origin:
                                                                                                  Thailand
                                                                                                  Country in which last significant manufacturing process was carried out
                                                                                                  Tariff No:85423290
                                                                                                  US ECCN:EAR99
                                                                                                  EU ECCN:NLR
                                                                                                  RoHS Compliant:Yes

                                                                                                  RoHS

                                                                                                  RoHS Phthalates Compliant:Yes

                                                                                                  RoHS

                                                                                                  SVHC:No SVHC (21-Jan-2025)
                                                                                                  Download Product Compliance Certificate

                                                                                                  Product Compliance Certificate

                                                                                                  Weight (kg):.002414
                                                                                                  Product traceability

                                                                                                  Date/Lot Code

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