Microchip, 256 kB Parallel EEPROM, 120 ns 32-Pin PLCC Parallel
- RS Stock No.:
- 177-1458
- Mfr. Part No.:
- AT28HC256-12JU
- Manufacturer:
- Microchip
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Subtotal (1 tube of 32 units)*
HK$3,176.704
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- Shipping from 23 July 2026
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Units | Per unit | Per Tube* |
|---|---|---|
| 32 - 32 | HK$99.272 | HK$3,176.70 |
| 64 - 288 | HK$97.288 | HK$3,113.22 |
| 320 + | HK$95.341 | HK$3,050.91 |
*price indicative
- RS Stock No.:
- 177-1458
- Mfr. Part No.:
- AT28HC256-12JU
- Manufacturer:
- Microchip
Specifications
Product overview and Technical data sheets
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | Microchip | |
| Product Type | Parallel EEPROM | |
| Memory Size | 256kB | |
| Interface Type | Parallel | |
| Package Type | PLCC | |
| Mount Type | Surface | |
| Pin Count | 32 | |
| Organisation | 32K x 8 Bit | |
| Maximum Clock Frequency | 5MHz | |
| Minimum Supply Voltage | 4.5V | |
| Maximum Supply Voltage | 5.5V | |
| Number of Bits per Word | 8 | |
| Minimum Operating Temperature | -40°C | |
| Maximum Operating Temperature | 85°C | |
| Height | 3.5mm | |
| Width | 15 mm | |
| Series | AT28HC256 | |
| Standards/Approvals | No | |
| Length | 12.5mm | |
| Number of Words | 32768 | |
| Supply Current | 80mA | |
| Data Retention | 10year | |
| Maximum Random Access Time | 120ns | |
| Automotive Standard | No | |
| Select all | ||
|---|---|---|
Brand Microchip | ||
Product Type Parallel EEPROM | ||
Memory Size 256kB | ||
Interface Type Parallel | ||
Package Type PLCC | ||
Mount Type Surface | ||
Pin Count 32 | ||
Organisation 32K x 8 Bit | ||
Maximum Clock Frequency 5MHz | ||
Minimum Supply Voltage 4.5V | ||
Maximum Supply Voltage 5.5V | ||
Number of Bits per Word 8 | ||
Minimum Operating Temperature -40°C | ||
Maximum Operating Temperature 85°C | ||
Height 3.5mm | ||
Width 15 mm | ||
Series AT28HC256 | ||
Standards/Approvals No | ||
Length 12.5mm | ||
Number of Words 32768 | ||
Supply Current 80mA | ||
Data Retention 10year | ||
Maximum Random Access Time 120ns | ||
Automotive Standard No | ||
- COO (Country of Origin):
- TW
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.
Additional Features:
32 Kbits x 8 (256 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 200 μA (Max)
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