Datasheets
NMC27C256Q20 by:

IC 32K X 8 UVPROM, 200 ns, CDIP28, WINDOWED, CERAMIC, DIP-28, Programmable ROM

Part Details for NMC27C256Q20 by National Semiconductor Corporation

Overview of NMC27C256Q20 by National Semiconductor Corporation

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Applications Consumer Electronics

Price & Stock for NMC27C256Q20

Part # Distributor Description Stock Price Buy
Quest Components EPROM, 32K x 8, 28 Pin, Ceramic, DIP 22
  • 1 $8.7300
  • 2 $5.8200
  • 5 $4.3650
$4.3650 / $8.7300 Buy Now

Part Details for NMC27C256Q20

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NMC27C256Q20 Part Data Attributes

NMC27C256Q20 National Semiconductor Corporation
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NMC27C256Q20 National Semiconductor Corporation IC 32K X 8 UVPROM, 200 ns, CDIP28, WINDOWED, CERAMIC, DIP-28, Programmable ROM
Rohs Code No
Part Life Cycle Code Obsolete
Ihs Manufacturer NATIONAL SEMICONDUCTOR CORP
Package Description WDIP, DIP28,.6
Reach Compliance Code unknown
ECCN Code EAR99
HTS Code 8542.32.00.61
Access Time-Max 200 ns
I/O Type COMMON
JESD-30 Code R-GDIP-T28
JESD-609 Code e0
Memory Density 262144 bit
Memory IC Type UVPROM
Memory Width 8
Number of Functions 1
Number of Terminals 28
Number of Words 32768 words
Number of Words Code 32000
Operating Mode ASYNCHRONOUS
Operating Temperature-Max 70 °C
Operating Temperature-Min
Organization 32KX8
Output Characteristics 3-STATE
Package Body Material CERAMIC, GLASS-SEALED
Package Code WDIP
Package Equivalence Code DIP28,.6
Package Shape RECTANGULAR
Package Style IN-LINE, WINDOW
Parallel/Serial PARALLEL
Programming Voltage 13 V
Qualification Status Not Qualified
Seated Height-Max 5.715 mm
Standby Current-Max 0.0001 A
Supply Current-Max 0.02 mA
Supply Voltage-Max (Vsup) 5.25 V
Supply Voltage-Min (Vsup) 4.75 V
Supply Voltage-Nom (Vsup) 5 V
Surface Mount NO
Technology CMOS
Temperature Grade COMMERCIAL
Terminal Finish TIN LEAD
Terminal Form THROUGH-HOLE
Terminal Pitch 2.54 mm
Terminal Position DUAL
Width 15.24 mm

Alternate Parts for NMC27C256Q20

This table gives cross-reference parts and alternative options found for NMC27C256Q20. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of NMC27C256Q20, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Description Manufacturer Compare
TMS87C257-2JE 32KX8 UVPROM, 200ns, CDIP28, 0.600 INCH, WINDOWED, CERAMIC, DIP-28 Texas Instruments NMC27C256Q20 vs TMS87C257-2JE
AM27256-20DE UVPROM, 32KX8, 200ns, NMOS, CDIP28, HERMETIC SEALED, CERAMIC, DIP-28 AMD NMC27C256Q20 vs AM27256-20DE
HN27C256G-20 UVPROM, 32KX8, 200ns, CMOS, CDIP28, CERDIP-28 Hitachi Ltd NMC27C256Q20 vs HN27C256G-20
AM27256-2DC UVPROM, 32KX8, 200ns, NMOS, CDIP28, HERMETIC SEALED, CERAMIC, DIP-28 AMD NMC27C256Q20 vs AM27256-2DC
AM27C256-205DC UVPROM, 32KX8, 200ns, CMOS, CDIP28, WINDOWED, CERAMIC, DIP-28 AMD NMC27C256Q20 vs AM27C256-205DC
TMM27256BDI-20 IC 32K X 8 UVPROM, 200 ns, CDIP28, CERDIP-28, Programmable ROM Toshiba America Electronic Components NMC27C256Q20 vs TMM27256BDI-20
NMC27C256BQ20 32KX8 UVPROM, 200ns, CDIP28, WINDOWED, CERAMIC, DIP-28 Texas Instruments NMC27C256Q20 vs NMC27C256BQ20
TMS27C256-20JE4 32KX8 UVPROM, 200ns, CDIP28, 0.600 INCH, WINDOWED, CERDIP-28 Texas Instruments NMC27C256Q20 vs TMS27C256-20JE4
AM27C256-200DCB UVPROM, 32KX8, 200ns, CMOS, CDIP28, DIP-28 Spansion NMC27C256Q20 vs AM27C256-200DCB
NMC27C256BQE200 IC 32K X 8 UVPROM, 200 ns, CDIP28, WINDOWED, CERAMIC, DIP-28, Programmable ROM National Semiconductor Corporation NMC27C256Q20 vs NMC27C256BQE200
Part Number Description Manufacturer Compare
TC54256AP IC 32K X 8 OTPROM, 200 ns, PDIP28, 0.600 INCH, PLASTIC, DIP-28, Programmable ROM Toshiba America Electronic Components NMC27C256Q20 vs TC54256AP
TMS27C256-2JE 262 144-Bitprogrammable Read-Only Memory 28-CDIP -40 to 85 Texas Instruments NMC27C256Q20 vs TMS27C256-2JE
AT27LV256R-20DC UVPROM, 32KX8, 200ns, CMOS, CDIP28, 0.600 INCH, WINDOWED, CERDIP-28 Atmel Corporation NMC27C256Q20 vs AT27LV256R-20DC
NM27C256Q200 UVPROM, 32KX8, 200ns, CMOS, CDIP28, WINDOWED, CERDIP-28 Rochester Electronics LLC NMC27C256Q20 vs NM27C256Q200
NM27C256QM200 32KX8 UVPROM, 200ns, CDIP28, WINDOWED, CERDIP-28 Texas Instruments NMC27C256Q20 vs NM27C256QM200
NMC27C256Q200 32KX8 UVPROM, 200ns, CDIP28, WINDOWED, CERAMIC, DIP-28 Texas Instruments NMC27C256Q20 vs NMC27C256Q200
M27256-20F6 32KX8 UVPROM, 200ns, CDIP28, WINDOWED, FRIT SEALED, CERAMIC, DIP-28 STMicroelectronics NMC27C256Q20 vs M27256-20F6
TMS27PC256-20NE 32KX8 OTPROM, 200ns, PDIP28 Texas Instruments NMC27C256Q20 vs TMS27PC256-20NE
NM27C256QE200 UVPROM, 32KX8, 200ns, CMOS, CDIP28, WINDOWED, CERDIP-28 Fairchild Semiconductor Corporation NMC27C256Q20 vs NM27C256QE200
NM27LC256NE200 32KX8 OTPROM, 200ns, PDIP28, PLASTIC, DIP-28 Texas Instruments NMC27C256Q20 vs NM27LC256NE200

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