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28-PGA; 28U
Integrated Circuits (ICs)

AT28C256-20UM/883-815

Active
Microchip Technology

5V 256KBIT (32KBIT X 8) PARALLEL EEPROM WITH SOFTWARE DATA PROTECTION

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Search across all available documentation for this part.

DocumentsDatasheetSupport for Third Party Memory Devices Programmer Sources+4
28-PGA; 28U
Integrated Circuits (ICs)

AT28C256-20UM/883-815

Active
Microchip Technology

5V 256KBIT (32KBIT X 8) PARALLEL EEPROM WITH SOFTWARE DATA PROTECTION

Deep-Dive with AI

DocumentsDatasheetSupport for Third Party Memory Devices Programmer Sources+4

Technical Specifications

Parameters and characteristics for this part

SpecificationAT28C256-20UM/883-815
Access Time200 ns
Memory FormatEEPROM
Memory InterfaceParallel
Memory Organization32K x 8
Memory Size32 KB
Memory TypeNon-Volatile
Mounting TypeThrough Hole
Operating Temperature [Max]125 °C
Operating Temperature [Min]-55 °C
Package / Case28-BCPGA
Supplier Device Package28-CPGA
Supplier Device Package [x]13.97
Supplier Device Package [y]16.51
TechnologyEEPROM
Voltage - Supply [Max]5.5 V
Voltage - Supply [Min]4.5 V
Write Cycle Time - Word, Page10 ms

AT28C256E Series

5V 256Kbit (32Kbit x 8) Parallel EEPROM with Software Data Protection

PartMemory SizeMounting TypeSupplier Device PackageWrite Cycle Time - Word, PageMemory FormatTechnologyOperating Temperature [Min]Operating Temperature [Max]Memory InterfaceMemory OrganizationVoltage - Supply [Min]Voltage - Supply [Max]Memory TypePackage / CasePackage / CasePackage / CaseAccess TimeSupplier Device Package [y]Supplier Device Package [x]Package / Case [y]Package / Case [x]Package / Case
28-CDIP; 28D6
Microchip Technology
AT28C256-20DM/883-815
32 KB
Through Hole
28-CERDIP
10 ms
EEPROM
EEPROM
-55 °C
125 °C
Parallel
32K x 8
4.5 V
5.5 V
Non-Volatile
15.24 mm
0.6 in
28-CDIP
200 ns
32-LCC; 32L
Microchip Technology
AT28C256-25LM/883-829
32 KB
Surface Mount
32-LCC (11.43x13.97)
10 ms
EEPROM
EEPROM
-55 °C
125 °C
Parallel
32K x 8
4.5 V
5.5 V
Non-Volatile
32-CLCC
250 ns
28-PGA; 28U
Microchip Technology
AT28C256E-15UM/883-815
32 KB
Through Hole
28-CPGA
10 ms
EEPROM
EEPROM
-55 °C
125 °C
Parallel
32K x 8
4.5 V
5.5 V
Non-Volatile
28-BCPGA
150 ns
16.51
13.97
2 28-TSOP
Microchip Technology
AT28C256-15TU-T
32 KB
Surface Mount
28-TSOP
10 ms
EEPROM
EEPROM
-40 °C
85 °C
Parallel
32K x 8
4.5 V
5.5 V
Non-Volatile
28-TSSOP
150 ns
11.8 mm
0.465 "
28-PGA; 28U
Microchip Technology
AT28C256E-20UM/883
32 KB
Through Hole
28-CPGA
10 ms
EEPROM
EEPROM
-55 °C
125 °C
Parallel
32K x 8
4.5 V
5.5 V
Non-Volatile
28-BCPGA
200 ns
16.51
13.97
32-LCC; 32L
Microchip Technology
AT28C256-20LM/883
32 KB
Surface Mount
32-LCC (11.43x13.97)
10 ms
EEPROM
EEPROM
-55 °C
125 °C
Parallel
32K x 8
4.5 V
5.5 V
Non-Volatile
32-CLCC
200 ns
28-PGA; 28U
Microchip Technology
AT28C256-20UM/883-815
32 KB
Through Hole
28-CPGA
10 ms
EEPROM
EEPROM
-55 °C
125 °C
Parallel
32K x 8
4.5 V
5.5 V
Non-Volatile
28-BCPGA
200 ns
16.51
13.97
SOIC / 28
Microchip Technology
AT28C256E-15SU-T
32 KB
Surface Mount
28-SOIC
10 ms
EEPROM
EEPROM
-40 °C
85 °C
Parallel
32K x 8
4.5 V
5.5 V
Non-Volatile
28-SOIC
150 ns
7.5 mm
0.295 in
28-PDIP
Microchip Technology
AT28C256E-15PC
32 KB
Through Hole
28-PDIP
10 ms
EEPROM
EEPROM
Parallel
32K x 8
4.5 V
5.5 V
Non-Volatile
15.24 mm
28-DIP
150 ns
0.6 in
28-PDIP
Microchip Technology
AT28C256-15PU
32 KB
Through Hole
28-PDIP
10 ms
EEPROM
EEPROM
-40 °C
85 °C
Parallel
32K x 8
4.5 V
5.5 V
Non-Volatile
15.24 mm
28-DIP
150 ns
0.6 in

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

DistributorPackageQuantity$
DigikeyBox 20$ 338.20
Microchip DirectBOX 1$ 328.35
25$ 316.04
100$ 303.72
1000$ 287.31
5000$ 270.88
10000$ 254.47

Description

General part information

AT28C256E Series

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