27C256MQB/C15
vs
NMC87C257Q150
feature comparison
| Rohs Code |
No
|
No
|
| Part Life Cycle Code |
Transferred
|
Obsolete
|
| Ihs Manufacturer |
THOMSON ELECTRON TUBES & DEVICES CORP
|
NATIONAL SEMICONDUCTOR CORP
|
| Package Description |
DIP, DIP28,.6
|
WDIP, DIP28,.6
|
| Reach Compliance Code |
unknown
|
unknown
|
| ECCN Code |
3A001.A.2.C
|
EAR99
|
| HTS Code |
8542.32.00.61
|
8542.32.00.61
|
| Access Time-Max |
150 ns
|
150 ns
|
| I/O Type |
COMMON
|
COMMON
|
| JESD-30 Code |
R-XDIP-T28
|
R-GDIP-T28
|
| JESD-609 Code |
e0
|
e0
|
| Memory Density |
262144 bit
|
262144 bit
|
| Memory Width |
8
|
8
|
| Number of Terminals |
28
|
28
|
| Number of Words |
32768 words
|
32768 words
|
| Number of Words Code |
32000
|
32000
|
| Operating Temperature-Max |
125 °C
|
70 °C
|
| Operating Temperature-Min |
-55 °C
|
|
| Organization |
32KX8
|
32KX8
|
| Output Characteristics |
3-STATE
|
3-STATE
|
| Package Body Material |
CERAMIC
|
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
|
| Programming Voltage |
12.75 V
|
|
| Qualification Status |
Not Qualified
|
Not Qualified
|
| Screening Level |
38535Q/M;38534H;883B
|
|
| Standby Current-Max |
0.001 A
|
0.0001 A
|
| Supply Current-Max |
0.1 mA
|
0.03 mA
|
| Supply Voltage-Nom (Vsup) |
5 V
|
5 V
|
| Surface Mount |
NO
|
NO
|
| Technology |
CMOS
|
CMOS
|
| Temperature Grade |
MILITARY
|
COMMERCIAL
|
| Terminal Finish |
Tin/Lead (Sn/Pb)
|
TIN LEAD
|
| Terminal Form |
THROUGH-HOLE
|
THROUGH-HOLE
|
| Terminal Pitch |
2.54 mm
|
2.54 mm
|
| Terminal Position |
DUAL
|
DUAL
|
| Base Number Matches |
4
|
2
|
| Pbfree Code |
|
No
|
| Part Package Code |
|
DIP
|
| Pin Count |
|
28
|
| Additional Feature |
|
TTL/CMOS COMPATIBLE INPUT & OUTPUT LEVELS
|
| Memory IC Type |
|
UVPROM
|
| Number of Functions |
|
1
|
| Operating Mode |
|
ASYNCHRONOUS
|
| Parallel/Serial |
|
PARALLEL
|
| Supply Voltage-Max (Vsup) |
|
5.5 V
|
| Supply Voltage-Min (Vsup) |
|
4.5 V
|
|
|
|
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