U634H256CD1K45G1 vs U635H256DK25 feature comparison

U634H256CD1K45G1 Cypress Semiconductor

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U635H256DK25 Simtek Corporation

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Pbfree Code Yes
Part Life Cycle Code Obsolete Obsolete
Ihs Manufacturer SIMTEK CORP SIMTEK CORP
Part Package Code DIP
Package Description DIP, DIP, DIP28,.3
Pin Count 32
Reach Compliance Code unknown unknown
ECCN Code EAR99 EAR99
HTS Code 8542.32.00.41 8542.32.00.41
Access Time-Max 45 ns 25 ns
JESD-30 Code R-PDIP-T32 R-PDIP-T28
JESD-609 Code e3 e0
Length 41.91 mm 34.7 mm
Memory Density 262144 bit 262144 bit
Memory IC Type NON-VOLATILE SRAM NON-VOLATILE SRAM
Memory Width 8 8
Number of Functions 1 1
Number of Terminals 32 28
Number of Words 32768 words 32768 words
Number of Words Code 32000 32000
Operating Mode ASYNCHRONOUS ASYNCHRONOUS
Operating Temperature-Max 85 °C 85 °C
Operating Temperature-Min -40 °C -40 °C
Organization 32KX8 32KX8
Package Body Material PLASTIC/EPOXY PLASTIC/EPOXY
Package Code DIP DIP
Package Shape RECTANGULAR RECTANGULAR
Package Style IN-LINE IN-LINE
Parallel/Serial PARALLEL PARALLEL
Peak Reflow Temperature (Cel) NOT SPECIFIED 240
Qualification Status Not Qualified Not Qualified
Seated Height-Max 4.83 mm 5.1 mm
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 INDUSTRIAL INDUSTRIAL
Terminal Finish MATTE TIN TIN LEAD
Terminal Form THROUGH-HOLE THROUGH-HOLE
Terminal Pitch 2.54 mm 2.54 mm
Terminal Position DUAL DUAL
Time@Peak Reflow Temperature-Max (s) NOT SPECIFIED
Width 15.24 mm 7.62 mm
Base Number Matches 3 3
Rohs Code No
Alternate Memory Width 1
Package Equivalence Code DIP28,.3
Standby Current-Max 0.042 A
Supply Current-Max 0.1 mA

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