AT28HC256-12JU Memory by Microchip Technology

5V High-Speed 256Kbit (32Kbit x 8) Parallel EEPROM

Status: Active
Series: AT28HC256
RoHS: Compliant
View Datasheet Manufacturer Site View Pricing & Stock

The Microchip AT28HC256 is a high-performance 256Kbit Parallel EEPROM available in both Industrial and Military temp ranges, offering access times to 70ns with power dissipation of 440mW. Deselected, CMOS standby current is less than 5mA. 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. Features an internal Error Correction Circuit for extended endurance and improved data retention, in Military version. Optional Software Data Protection mechanism guards against inadvertent writes; and an extra 64 bytes of EEPROM enables device identification or tracking.

The AT28HC256 is also available DUAL MARKED where applicable with the appropriate Standard Military Drawing Number - 5962-886340xxx.  See the datasheet for exact MIL product availability.

Prices starting from US$9.89


Distributor Starting From Stock
Logo for Future Electronics Future Electronics US$10.16
96
Buy Now
Logo for Newark Electronics Newark Electronics US$11.70
12
Buy Now
Logo for Microchip Technology Microchip Technology US$10.04
12
Buy Now
Logo for element14 element14 US$12.86
12
Buy Now
Logo for Farnell Farnell US$9.89
12
Buy Now
Logo for Avnet America Avnet America US$11.25
-
Buy Now
View Full Pricing & Stock Comparison

Features

32 Kbits x 8 (256 Kbit)
5V ± 10% Supply
Parallel Interface
AT28HC256E - High Endurance 100K Write Cycles Option
AT28HC256F - 3 ms Fast Write Option
70ns 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 80 mA (Max)
Standby current TTL 3 mA (Max), CMOS 300 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
Available in Green (Pb/Halide-free) Packaging
32-lead, Plastic J-leaded Chip Carrier (PLCC)
28-lead, 0.300" Wide, Plastic Gull Wing Small Outline (SOIC)
28-lead, Plastic Thin Small Outline Package (TSOP)
Available in Dual marked (5962-886340xxx) 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

Density (Organization) 256Kb
Operating Voltage Min. (V) 4.5
Oper Voltage Max (V) 5.5
Read Access Speed (Par Flash) 70/90/120ns
Page Size (bytes) 0
Write Protected False
Endurance 10k Cycles
Data Retention (Years) 10
Battery Backup False
Pins | Packaging 32 | PLCC
Temp Range -40C to +85C
Packing Media Tube (32)

Environmental Information

JEDEC Indicator e3
ROHS Compliant
China EFUP Compliant
Device Weight (g) 1.129
Shipping Weight (kg) 2.333333
Lead Count 32
Package Type PLCC
Package Width or Size 11.5x14x3.37mm
Soldering Composition Matte Tin

Alternative Descriptions

AT28HC256 Series 256 Kb (32 K x 8) 5.5 V High-Speed Parallel EEPROM - PLCC-32 | Future Electronics
120NS, PLCC, IND TEMP, GREEN | RS
Eeprom, 256Kbit, -40 To 85Deg C | Newark Electronics
EEPROM, 256KBIT, -40 TO 85DEG C | element14
EEPROM Parallel 256K-bit 32K x 8 5V 32-Pin PLCC | Avnet America


Frequently Asked Questions

Where can I find additional details, specifications and documents for a AT28HC256-12JU?

Additional datasheets, footprints and schematics for AT28HC256-12JU are listed on our Part Details page. You can also find images and similar parts to AT28HC256-12JU on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for AT28HC256-12JU on our Product Comparison page. Access via the 'View Pricing & Stock' button to view AT28HC256-12JU price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does AT28HC256-12JU fall under?

The AT28HC256-12JU is listed under Semiconductors - ICs > Memory > EEPROM.

Can I view similar or alternative parts?

You can view similar parts to AT28HC256-12JU when available in the EEPROM range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the AT28HC256-12JU you can contact the distributor directly for product support, shipping queries etc.

Is the AT28HC256-12JU RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Microchip Technology.

Which authorised distributors for AT28HC256-12JU have stock available?

Authorised distributors including Future Electronics, RS, Newark Electronics, Microchip Technology and element14 have stock available or on a lead time for AT28HC256-12JU.

How do I check stock and lead times for all distributors?

Stock availability and lead times will be displayed for AT28HC256-12JU often in real-time on the comparison pages.

What if I can't find stock of AT28HC256-12JU?

You can fill out our help required form which you can use to request a quote for AT28HC256-12JU from some of our verified obsolescence suppliers. Alternatively, contact us via our web chat in the bottom left of your screen and one of our team will try to help.

We use cookies to improve your experience. See our privacy policy.
Okay