MM54HCT149J
vs
SN74LS280MEL
feature comparison
| Pbfree Code |
No
|
No
|
| Rohs Code |
No
|
No
|
| Part Life Cycle Code |
Obsolete
|
Obsolete
|
| Ihs Manufacturer |
NATIONAL SEMICONDUCTOR CORP
|
ON SEMICONDUCTOR
|
| Part Package Code |
DIP
|
SOIC
|
| Package Description |
DIP, DIP20,.3
|
SOP, SOP14,.3
|
| Pin Count |
20
|
14
|
| Reach Compliance Code |
unknown
|
not_compliant
|
| HTS Code |
8542.39.00.01
|
8542.39.00.01
|
| Additional Feature |
8 TO 8 LINE PRIORITY ENCODER; CASCADABLE
|
|
| Family |
HCT
|
LS
|
| JESD-30 Code |
R-GDIP-T20
|
R-PDSO-G14
|
| JESD-609 Code |
e0
|
e0
|
| Length |
24.51 mm
|
10.2 mm
|
| Load Capacitance (CL) |
50 pF
|
|
| Logic IC Type |
ENCODER
|
PARITY GENERATOR/CHECKER
|
| Number of Bits |
8
|
9
|
| Number of Functions |
1
|
1
|
| Number of Terminals |
20
|
14
|
| Operating Temperature-Max |
125 °C
|
70 °C
|
| Operating Temperature-Min |
-55 °C
|
|
| Package Body Material |
CERAMIC, GLASS-SEALED
|
PLASTIC/EPOXY
|
| Package Code |
DIP
|
SOP
|
| Package Equivalence Code |
DIP20,.3
|
SOP14,.3
|
| Package Shape |
RECTANGULAR
|
RECTANGULAR
|
| Package Style |
IN-LINE
|
SMALL OUTLINE
|
| Propagation Delay (tpd) |
60 ns
|
50 ns
|
| Qualification Status |
Not Qualified
|
Not Qualified
|
| Seated Height-Max |
5.08 mm
|
2.05 mm
|
| Supply Voltage-Max (Vsup) |
5.5 V
|
5.25 V
|
| Supply Voltage-Min (Vsup) |
4.5 V
|
4.75 V
|
| Supply Voltage-Nom (Vsup) |
5 V
|
5 V
|
| Surface Mount |
NO
|
YES
|
| Technology |
CMOS
|
TTL
|
| Temperature Grade |
MILITARY
|
COMMERCIAL
|
| Terminal Finish |
TIN LEAD
|
TIN LEAD
|
| Terminal Form |
THROUGH-HOLE
|
GULL WING
|
| Terminal Pitch |
2.54 mm
|
1.27 mm
|
| Terminal Position |
DUAL
|
DUAL
|
| Width |
7.62 mm
|
5.275 mm
|
| Base Number Matches |
4
|
1
|
| Output Polarity |
|
COMPLEMENTARY
|
|
|
|
Compare MM54HCT149J with alternatives
Compare SN74LS280MEL with alternatives