Texas Instruments SN54LS190J Counters and Dividers
4-bit bidirectional decade counter, positive edge triggered, LS family logic IC.

Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
SN54LS190J
Series
Base Model
Detailed Description
4-bit bidirectional decade counter, positive edge triggered, LS family logic IC. Features a MILITARY temperature grade with an operating range of -55°C to 125°C. Operates with a nominal supply voltage of 5V (4.5V to 5.5V). CDIP16 ceramic package with 16 terminals. Includes a propagation delay of 36ns and a maximum operating frequency of 20MHz.
Key Features
Number of Bits: 4
Lifecycle Status
Active
RoHS State
No
Datasheet
SN54LS190J Datasheet
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Technical Specifications
Texas Instruments SN54LS190J Counters and Dividers technical specifications.
General
RoHS
No
Number of Pins
16
Operating Temperature
-55 ~ 125
Terminal Position
DUAL
Jedec Package Code
R-CDIP-T16
Width
7.62
Length
19.56
Number of Functions
1
Temperature Grade
MILITARY
Supply Voltage Nom Vsup
5
Alternate Parts Comparison (SN54LS190J vs SN54LS03J vs SN54LS266J vs SN54LS09J)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Operating Temperature | -55 ~ 125 | -- | -- | -- |
| Number of Pins | 16 | -- | -- | -- |
| RoHS | No | -- | -- | -- |
| Count Direction | BIDIRECTIONAL | -- | -- | -- |
| Family | LS | -- | -- | -- |
| Fmax Min | 20 | -- | -- | -- |
| Jedec Package Code | R-CDIP-T16 | -- | -- | -- |
| Length | 19.56 | -- | -- | -- |
| Load Capacitance | 15 | -- | -- | -- |
| Logic IC Type | DECADE COUNTER | -- | -- | -- |
| Max Frequency Nom Sup | 20000000 | -- | -- | -- |
| Max I Ol | 0.004 | -- | -- | -- |
| Action |
Texas Instruments SN54LS190J Counters and Dividers Overview
4-bit bidirectional decade counter, positive edge triggered, LS family logic IC. Features a MILITARY temperature grade with an operating range of -55°C to 125°C. Operates with a nominal supply voltage of 5V (4.5V to 5.5V). CDIP16 ceramic package with 16 terminals. Includes a propagation delay of 36ns and a maximum operating frequency of 20MHz.
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