WS57C256F-35D vs 28LV64A-T-20/SO feature comparison

WS57C256F-35D Waferscale Integration Inc

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28LV64A-T-20/SO Microchip Technology Inc

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Rohs Code No Yes
Part Life Cycle Code Obsolete Obsolete
Ihs Manufacturer WAFERSCALE INTEGRATION INC MICROCHIP TECHNOLOGY INC
Package Description 0.600 INCH, CERDIP-28 PLASTIC, SOIC-28
Reach Compliance Code unknown unknown
Access Time-Max 35 ns 200 ns
I/O Type COMMON
JESD-30 Code R-GDIP-T28 R-PDSO-G28
JESD-609 Code e0 e3
Memory Density 262144 bit 65536 bit
Memory IC Type UVPROM EEPROM
Memory Width 8 8
Number of Functions 1 1
Number of Terminals 28 28
Number of Words 32768 words 8192 words
Number of Words Code 32000 8000
Operating Mode ASYNCHRONOUS ASYNCHRONOUS
Operating Temperature-Max 70 °C 70 °C
Operating Temperature-Min
Organization 32KX8 8KX8
Output Characteristics 3-STATE
Package Body Material CERAMIC, GLASS-SEALED PLASTIC/EPOXY
Package Code DIP SOP
Package Equivalence Code DIP28,.6 SOP28,.4
Package Shape RECTANGULAR RECTANGULAR
Package Style IN-LINE SMALL OUTLINE
Parallel/Serial PARALLEL PARALLEL
Programming Voltage 12.5 V 3 V
Qualification Status Not Qualified Not Qualified
Standby Current-Max 0.0005 A 0.0001 A
Supply Current-Max 0.164 mA 0.008 mA
Supply Voltage-Max (Vsup) 5.5 V 3.6 V
Supply Voltage-Min (Vsup) 4.5 V 2.7 V
Supply Voltage-Nom (Vsup) 5 V 3.3 V
Surface Mount NO YES
Technology CMOS CMOS
Temperature Grade COMMERCIAL COMMERCIAL
Terminal Finish Tin/Lead (Sn/Pb) Matte Tin (Sn)
Terminal Form THROUGH-HOLE GULL WING
Terminal Pitch 2.54 mm 1.27 mm
Terminal Position DUAL DUAL
Base Number Matches 1 2
Part Package Code SOIC
Pin Count 28
ECCN Code EAR99
HTS Code 8542.32.00.51
Additional Feature MINIMUM 100K WRITE/ERASE CYCLE; 200 YEAR DATA RETENTION
Command User Interface NO
Data Polling YES
Data Retention Time-Min 200
Length 17.9 mm
Moisture Sensitivity Level 3
Peak Reflow Temperature (Cel) 260
Ready/Busy YES
Seated Height-Max 2.65 mm
Time@Peak Reflow Temperature-Max (s) 40
Toggle Bit NO
Width 7.5 mm
Write Cycle Time-Max (tWC) 3 ms

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