AT28C256-20LM/883 More Semiconductors - ICs by Microchip Technology
5V 256Kbit (32Kbit x 8) Parallel EEPROM with Software Data Protection
| Status: | Active |
|---|---|
| Series: | AT28C256 |
| RoHS: | Unknown |
The Microchip AT28C256 is a high-performance 256Kbit Parallel EEPROM available in both Industrial and Military temp ranges, offering access times to 150ns with power dissipation of 440mW. Deselected, CMOS standby current is less than 200μA. 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. 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 AT28C256 is also available DUAL MARKED where applicable with the appropriate Standard Military Drawing Number - 5962-88525xxxx. See the datasheet for exact MIL product availability.
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
| Density (Organization) | 256Kb |
|---|---|
| Operating Voltage Min. (V) | 4.5 |
| Oper Voltage Max (V) | 5.5 |
| Read Access Speed (Par Flash) | 150/200/250ns |
| Page Size (bytes) | 64 |
| Write Protected | False |
| Endurance | 10k Cycles |
| Data Retention (Years) | 10 |
| Battery Backup | False |
| Pins | Packaging | 32 | CLCC |
| Temp Range | -55C to +125C |
| Packing Media | Tube (34) |
Last 6 months Inventory & Pricing History
Resources
Data Sheets |
|---|
| Industrial Grade 256-Kbit (32,768 x 8) Paged Parallel EEPROM |
| AT28C256 Military Grade 256-Kbit (32,768 x 8) Paged Parallel EEPROM |
Application Notes |
|---|
| AN_3317 - Support for Third Party Memory Devices Programmer Sources |
| AN_0543 - EEPROM Data Protection |
| AN_0545 - Programmer Support for Parallel EEPROMs |
| AN_0544 - Software Chip Erase |
Miscellaneous |
|---|
| Standard Microcircuit Drawings Product Offering |
Supporting Collateral |
|---|
| Parallel EEPROM Die Products |
Environmental Information
| JEDEC Indicator | e0 |
|---|---|
| ROHS | Unknown |
| China EFUP | EFUP 50 years |
| Device Weight (g) | 0.0 |
| Shipping Weight (kg) | 0.0 |
| Lead Count | 32 |
| Package Type | CLCC |
| Package Width or Size | 11.4x14x2.54mm |
| Soldering Composition | SnPb |
Alternative Descriptions
| 200NS, LCC, 883C | Microchip Technology |
| Eeprom, 256Kbit, -55 To 125Deg C | Newark Electronics |
| EEPROM, 256KBIT, -55 TO 125DEG C | Farnell |
| EEPROM Parallel 256K-bit 32K x 8 5V 32-Pin CLLCC | EBV Elektronik |
Frequently Asked Questions
Where can I find additional details, specifications and documents for a AT28C256-20LM/883?
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What category does AT28C256-20LM/883 fall under?
The AT28C256-20LM/883 is listed under Semiconductors - ICs > More Semiconductors - ICs.
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Is the AT28C256-20LM/883 RoHS compliant?
This part has not been flagged as RoHS Compliant.
Which authorised distributors for AT28C256-20LM/883 have stock available?
Authorised distributors including Microchip Technology, Newark Electronics, Farnell, EBV Elektronik and Avnet Silica have stock available or on a lead time for AT28C256-20LM/883.
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