Texas Instruments SN74LS145N Signal Switches, Multiplexers and Decoders
Single 4-to-10 decoder/driver IC featuring 10 output lines and 4 input lines.

Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
SN74LS145N
Series
Base Model
Detailed Description
Single 4-to-10 decoder/driver IC featuring 10 output lines and 4 input lines. This logic component operates with a 5V supply voltage (4.75V to 5.25V) and offers a 35MHz bandwidth. It supports through-hole mounting in a 16-pin PDIP package. Key specifications include a low-level output current of 80mA and a high-level output current of -250uA, with a propagation delay of 50ns.
Package
PDIP
Lifecycle Status
Active
RoHS State
RoHS Compliant
Datasheet
SN74LS145N Datasheet
Quick Jump:
Technical Specifications
Texas Instruments SN74LS145N Signal Switches, Multiplexers and Decoders technical specifications.
General
Series
74LS
RoHS
Yes
Number of Channels
1
Package / Case
16-DIP
Mounting Type
Through Hole
Operating Temperature
0°C ~ 70°C
Supply Voltage
5V
Bandwidth
35MHz
Package
PDIP
Height
4.57mm
Alternate Parts Comparison (SN74LS145N vs SN74LS132DR vs SN74LS14DRE4 vs SN74LS14DRG4)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Package / Case | 16-DIP | 14-SOIC | 14-SOIC | 14-SOIC |
| Mounting Type | Through Hole | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature | 0°C ~ 70°C | 0°C ~ 70°C | 0°C ~ 70°C | 0°C ~ 70°C |
| Supply Voltage | 5V | 4.75V ~ 5.25V | 4.75V ~ 5.25V | 4.75V ~ 5.25V |
| Current Output High Low | -, 80mA | 400µA, 8mA | 400µA, 8mA | 400µA, 8mA |
| Number of Circuits | 1 | 4 | 6 | 6 |
| Number of Inputs | 4 | 2 | 1 | 1 |
| Features | -- | Schmitt Trigger | Schmitt Trigger | Schmitt Trigger |
| Logic Level High | -- | 1.9V | 1.9V | 1.9V |
| Logic Level Low | -- | 0.5V | 0.5V | 0.5V |
| Logic Type | -- | NAND Gate | Inverter | Inverter |
| Max Propagation Delay V Max Cl | -- | 22ns @ 5V, 15pF | 22ns @ 5V, 15pF | 22ns @ 5V, 15pF |
| Action |
Texas Instruments SN74LS145N Signal Switches, Multiplexers and Decoders Overview
Single 4-to-10 decoder/driver IC featuring 10 output lines and 4 input lines. This logic component operates with a 5V supply voltage (4.75V to 5.25V) and offers a 35MHz bandwidth. It supports through-hole mounting in a 16-pin PDIP package. Key specifications include a low-level output current of 80mA and a high-level output current of -250uA, with a propagation delay of 50ns.
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