Microchip, 256 kB Parallel EEPROM, 150 ns 28-Pin SOIC Parallel

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Subtotal (1 tube of 27 units)*

£312.741

(exc. VAT)

£375.30

(inc. VAT)

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  • 54 unit(s) shipping from 19 February 2026
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Units
Per unit
Per Tube*
27 - 81£11.583£312.74
108 +£11.27£304.29

*price indicative

RS Stock No.:
177-1456
Mfr. Part No.:
AT28C256-15SU
Brand:
Microchip
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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

Maximum Supply Voltage

5.5V

Number of Bits per Word

8

Minimum Operating Temperature

-40°C

Maximum Operating Temperature

85°C

Series

AT28C256

Width

7.6 mm

Standards/Approvals

No

Length

18.1mm

Number of Words

32768

Automotive Standard

No

Supply Current

50mA

Maximum Random Access Time

150ns

Data Retention

10year

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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