Microchip, 256 kB Parallel EEPROM, 150 ns 28-Pin SOIC Parallel
- RS Stock No.:
- 177-1456
- Mfr. Part No.:
- AT28C256-15SU
- Manufacturer:
- Microchip
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Subtotal (1 tube of 27 units)*
HK$2,623.698
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In Stock
- Plus 54 unit(s) shipping from 19 December 2025
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit | Per Tube* |
|---|---|---|
| 27 - 27 | HK$97.174 | HK$2,623.70 |
| 54 - 243 | HK$95.23 | HK$2,571.21 |
| 270 + | HK$93.326 | HK$2,519.80 |
*price indicative
- RS Stock No.:
- 177-1456
- Mfr. Part No.:
- AT28C256-15SU
- 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 | SOIC | |
| Mount Type | Surface | |
| Pin Count | 28 | |
| Organisation | 32K x 8 Bit | |
| Maximum Clock Frequency | 5MHz | |
| Minimum Supply Voltage | 4.5V | |
| Number of Bits per Word | 8 | |
| Maximum Supply Voltage | 5.5V | |
| Minimum Operating Temperature | -40°C | |
| Maximum Operating Temperature | 85°C | |
| Standards/Approvals | No | |
| Length | 18.1mm | |
| Series | AT28C256 | |
| Width | 7.6 mm | |
| Data Retention | 10year | |
| Number of Words | 32768 | |
| Automotive Standard | No | |
| Maximum Random Access Time | 150ns | |
| Supply Current | 50mA | |
| Select all | ||
|---|---|---|
Brand Microchip | ||
Product Type Parallel EEPROM | ||
Memory Size 256kB | ||
Interface Type Parallel | ||
Package Type SOIC | ||
Mount Type Surface | ||
Pin Count 28 | ||
Organisation 32K x 8 Bit | ||
Maximum Clock Frequency 5MHz | ||
Minimum Supply Voltage 4.5V | ||
Number of Bits per Word 8 | ||
Maximum Supply Voltage 5.5V | ||
Minimum Operating Temperature -40°C | ||
Maximum Operating Temperature 85°C | ||
Standards/Approvals No | ||
Length 18.1mm | ||
Series AT28C256 | ||
Width 7.6 mm | ||
Data Retention 10year | ||
Number of Words 32768 | ||
Automotive Standard No | ||
Maximum Random Access Time 150ns | ||
Supply Current 50mA | ||
- COO (Country of Origin):
- TW
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.
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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