AT27C256R-15DC vs M27C256B-25F1 feature comparison

AT27C256R-15DC Atmel Corporation

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M27C256B-25F1 STMicroelectronics

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Pbfree Code No
Rohs Code No Yes
Part Life Cycle Code Obsolete Obsolete
Ihs Manufacturer ATMEL CORP STMICROELECTRONICS
Part Package Code DIP DIP
Package Description 0.600 INCH, WINDOWED, CERDIP-28 0.280 INCH, LEAD FREE, CERAMIC, WINDOWED, FRIT SEALED, DIP-28
Pin Count 28 28
Reach Compliance Code unknown compliant
ECCN Code EAR99 EAR99
HTS Code 8542.32.00.61 8542.32.00.61
Access Time-Max 150 ns 150 ns
I/O Type COMMON COMMON
JESD-30 Code R-GDIP-T28 R-CDIP-T28
JESD-609 Code e0 e3
Length 37.25 mm 36.92 mm
Memory Density 262144 bit 262144 bit
Memory IC Type UVPROM UVPROM
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 70 °C 70 °C
Operating Temperature-Min
Organization 32KX8 32KX8
Output Characteristics 3-STATE 3-STATE
Package Body Material CERAMIC, GLASS-SEALED CERAMIC, METAL-SEALED COFIRED
Package Code WDIP WDIP
Package Equivalence Code DIP28,.6 DIP28,.6
Package Shape RECTANGULAR RECTANGULAR
Package Style IN-LINE, WINDOW IN-LINE, WINDOW
Parallel/Serial PARALLEL PARALLEL
Programming Voltage 13 V 12.75 V
Qualification Status Not Qualified Not Qualified
Seated Height-Max 5.72 mm 5.72 mm
Standby Current-Max 0.0001 A 0.0002 A
Supply Current-Max 0.02 mA 0.03 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 COMMERCIAL COMMERCIAL
Terminal Finish TIN LEAD MATTE TIN
Terminal Form THROUGH-HOLE THROUGH-HOLE
Terminal Pitch 2.54 mm 2.54 mm
Terminal Position DUAL DUAL
Width 15.24 mm 15.24 mm
Base Number Matches 1 1

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