CY7C256-55WMB vs WS57C256F-55DM feature comparison

CY7C256-55WMB Cypress Semiconductor

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WS57C256F-55DM STMicroelectronics

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Pbfree Code No
Rohs Code No No
Part Life Cycle Code Obsolete Obsolete
Ihs Manufacturer CYPRESS SEMICONDUCTOR CORP STMICROELECTRONICS
Part Package Code DIP DIP
Package Description 0.600 INCH, WINDOWED, CERDIP-28 0.600 INCH, CERDIP-28
Pin Count 28 28
Reach Compliance Code not_compliant not_compliant
ECCN Code 3A001.A.2.C 3A001.A.2.C
HTS Code 8542.32.00.61 8542.32.00.61
Access Time-Max 55 ns 55 ns
Additional Feature POWER SWITCHED PROM
I/O Type COMMON COMMON
JESD-30 Code R-GDIP-T28 R-GDIP-T28
JESD-609 Code e0 e0
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 125 °C 125 °C
Operating Temperature-Min -55 °C -55 °C
Organization 32KX8 32KX8
Output Characteristics 3-STATE 3-STATE
Package Body Material CERAMIC, GLASS-SEALED CERAMIC, GLASS-SEALED
Package Code DIP WDIP
Package Equivalence Code DIP28,.6 DIP28,.6
Package Shape RECTANGULAR RECTANGULAR
Package Style IN-LINE IN-LINE, WINDOW
Parallel/Serial PARALLEL PARALLEL
Programming Voltage 12.5 V 12.75 V
Qualification Status Not Qualified Not Qualified
Screening Level 38535Q/M;38534H;883B 38535Q/M;38534H;883B
Standby Current-Max 0.02 A 0.0005 A
Supply Current-Max 0.06 mA 0.06 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 MILITARY
Terminal Finish TIN LEAD TIN LEAD
Terminal Form THROUGH-HOLE THROUGH-HOLE
Terminal Pitch 2.54 mm 2.54 mm
Terminal Position DUAL DUAL
Base Number Matches 1 2
Length 37.215 mm
Seated Height-Max 5.72 mm
Width 15.24 mm

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