AT28C256-25DM vs AT28C256E-25UC feature comparison

AT28C256-25DM Atmel Corporation

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AT28C256E-25UC Atmel Corporation

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Pbfree Code No No
Rohs Code No No
Part Life Cycle Code Obsolete Obsolete
Ihs Manufacturer ATMEL CORP ATMEL CORP
Part Package Code DIP PGA
Package Description WDIP, DIP28,.6 PGA, PGA28,5X6
Pin Count 28 28
Reach Compliance Code compliant compliant
ECCN Code 3A001.A.2.C EAR99
HTS Code 8542.32.00.51 8542.32.00.51
Access Time-Max 250 ns 250 ns
Additional Feature AUTOMATIC WRITE HARDWARE & SOFTWARE DATA PROTECTION; DATA RETENTION = 10 YEARS
Command User Interface NO NO
Data Polling YES YES
Endurance 10000 Write/Erase Cycles 100000 Write/Erase Cycles
JESD-30 Code R-GDIP-T28 R-CPGA-P28
JESD-609 Code e0 e0
Length 37.25 mm 16.5 mm
Memory Density 262144 bit 262144 bit
Memory IC Type EEPROM EEPROM
Memory Width 8 8
Number of Functions 1 1
Number of Terminals 28 28
Number of Words 32768 words 32768 words
Number of Words Code 32000 32000
Operating Mode ASYNCHRONOUS ASYNCHRONOUS
Operating Temperature-Max 125 °C 70 °C
Operating Temperature-Min -55 °C
Organization 32KX8 32KX8
Output Characteristics 3-STATE 3-STATE
Package Body Material CERAMIC, GLASS-SEALED CERAMIC, METAL-SEALED COFIRED
Package Code WDIP PGA
Package Equivalence Code DIP28,.6 PGA28,5X6
Package Shape RECTANGULAR RECTANGULAR
Package Style IN-LINE, WINDOW GRID ARRAY
Page Size 64 words 64 words
Parallel/Serial PARALLEL PARALLEL
Programming Voltage 5 V 5 V
Qualification Status Not Qualified Not Qualified
Seated Height-Max 5.72 mm 4.4 mm
Standby Current-Max 0.0003 A 0.0002 A
Supply Current-Max 0.08 mA 0.08 mA
Supply Voltage-Max (Vsup) 5.5 V 5.5 V
Supply Voltage-Min (Vsup) 4.5 V 4.5 V
Supply Voltage-Nom (Vsup) 5 V 5 V
Surface Mount NO NO
Technology CMOS CMOS
Temperature Grade MILITARY COMMERCIAL
Terminal Finish TIN LEAD TIN LEAD
Terminal Form THROUGH-HOLE PIN/PEG
Terminal Pitch 2.54 mm 2.54 mm
Terminal Position DUAL PERPENDICULAR
Toggle Bit YES YES
Width 15.24 mm 14 mm
Write Cycle Time-Max (tWC) 10 ms 10 ms
Base Number Matches 2 1
Data Retention Time-Min 10

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