DM74LS491N
vs
DM54LS491AJ
feature comparison
| Rohs Code |
No
|
No
|
| Part Life Cycle Code |
Obsolete
|
Obsolete
|
| Ihs Manufacturer |
NATIONAL SEMICONDUCTOR CORP
|
NATIONAL SEMICONDUCTOR CORP
|
| Package Description |
DIP, DIP24,.3
|
DIP, DIP24,.3
|
| Reach Compliance Code |
unknown
|
unknown
|
| HTS Code |
8542.39.00.01
|
8542.39.00.01
|
| Additional Feature |
6 MIDDLE BITS CAN BE SET H/L AS A GROUP
|
6 MIDDLE BITS CAN BE SET H/L AS A GROUP
|
| Count Direction |
BIDIRECTIONAL
|
BIDIRECTIONAL
|
| Family |
LS
|
LS
|
| JESD-30 Code |
R-PDIP-T24
|
R-GDIP-T24
|
| JESD-609 Code |
e0
|
e0
|
| Length |
31.915 mm
|
|
| Load Capacitance (CL) |
50 pF
|
|
| Load/Preset Input |
YES
|
NO
|
| Logic IC Type |
BINARY COUNTER
|
BINARY COUNTER
|
| Max Frequency@Nom-Sup |
12500000 Hz
|
15300000 Hz
|
| Max I(ol) |
0.024 A
|
0.012 A
|
| Mode of Operation |
SYNCHRONOUS
|
SYNCHRONOUS
|
| Number of Bits |
10
|
10
|
| Number of Functions |
1
|
1
|
| Number of Terminals |
24
|
24
|
| Operating Temperature-Max |
75 °C
|
125 °C
|
| Operating Temperature-Min |
|
-55 °C
|
| Output Characteristics |
3-STATE
|
3-STATE
|
| Package Body Material |
PLASTIC/EPOXY
|
CERAMIC, GLASS-SEALED
|
| Package Code |
DIP
|
DIP
|
| Package Equivalence Code |
DIP24,.3
|
DIP24,.3
|
| Package Shape |
RECTANGULAR
|
RECTANGULAR
|
| Package Style |
IN-LINE
|
IN-LINE
|
| Power Supply Current-Max (ICC) |
180 mA
|
180 mA
|
| Propagation Delay (tpd) |
30 ns
|
25 ns
|
| Qualification Status |
Not Qualified
|
Not Qualified
|
| Seated Height-Max |
5.08 mm
|
5.715 mm
|
| Supply Voltage-Max (Vsup) |
5.25 V
|
5.5 V
|
| Supply Voltage-Min (Vsup) |
4.75 V
|
4.5 V
|
| Supply Voltage-Nom (Vsup) |
5 V
|
5 V
|
| Surface Mount |
NO
|
NO
|
| Technology |
TTL
|
TTL
|
| Temperature Grade |
COMMERCIAL EXTENDED
|
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
|
| Trigger Type |
POSITIVE EDGE
|
POSITIVE EDGE
|
| Width |
7.62 mm
|
7.62 mm
|
| fmax-Min |
12.5 MHz
|
32 MHz
|
| Base Number Matches |
3
|
2
|
|
|
|
Compare DM74LS491N with alternatives
Compare DM54LS491AJ with alternatives