NMC87C257Q150 vs 27C256MQB/C15 feature comparison

NMC87C257Q150 Texas Instruments

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27C256MQB/C15 Thomson Electron Tubes & Devices Corp

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Pbfree Code No
Rohs Code No No
Part Life Cycle Code Obsolete Transferred
Ihs Manufacturer NATIONAL SEMICONDUCTOR CORP THOMSON ELECTRON TUBES & DEVICES CORP
Part Package Code DIP
Package Description WDIP, DIP28,.6 DIP, DIP28,.6
Pin Count 28
Reach Compliance Code unknown unknown
ECCN Code EAR99 3A001.A.2.C
HTS Code 8542.32.00.61 8542.32.00.61
Access Time-Max 150 ns 150 ns
Additional Feature TTL/CMOS COMPATIBLE INPUT & OUTPUT LEVELS
I/O Type COMMON COMMON
JESD-30 Code R-GDIP-T28 R-XDIP-T28
JESD-609 Code e0 e0
Memory Density 262144 bit 262144 bit
Memory IC Type UVPROM
Memory Width 8 8
Number of Functions 1
Number of Terminals 28 28
Number of Words 32768 words 32768 words
Number of Words Code 32000 32000
Operating Mode ASYNCHRONOUS
Operating Temperature-Max 70 °C 125 °C
Operating Temperature-Min -55 °C
Organization 32KX8 32KX8
Output Characteristics 3-STATE 3-STATE
Package Body Material CERAMIC, GLASS-SEALED CERAMIC
Package Code WDIP DIP
Package Equivalence Code DIP28,.6 DIP28,.6
Package Shape RECTANGULAR RECTANGULAR
Package Style IN-LINE, WINDOW IN-LINE
Parallel/Serial PARALLEL
Qualification Status Not Qualified Not Qualified
Standby Current-Max 0.0001 A 0.001 A
Supply Current-Max 0.03 mA 0.1 mA
Supply Voltage-Max (Vsup) 5.5 V
Supply Voltage-Min (Vsup) 4.5 V
Supply Voltage-Nom (Vsup) 5 V 5 V
Surface Mount NO NO
Technology CMOS CMOS
Temperature Grade COMMERCIAL MILITARY
Terminal Finish TIN LEAD Tin/Lead (Sn/Pb)
Terminal Form THROUGH-HOLE THROUGH-HOLE
Terminal Pitch 2.54 mm 2.54 mm
Terminal Position DUAL DUAL
Base Number Matches 2 4
Programming Voltage 12.75 V
Screening Level 38535Q/M;38534H;883B

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