Texas Instruments SN74ALS191N3 Shift Registers
Bi-directional, positive-edge triggered 4-bit binary UP/DOWN counter IC.

Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
SN74ALS191N3
Series
Base Model
Detailed Description
Bi-directional, positive-edge triggered 4-bit binary UP/DOWN counter IC. This integrated circuit features a single 4-stage counter with 4 inputs and 4 outputs, operating with Bipolar process technology and ALS logic family. Packaged in a 16-pin PDIP (Plastic Dual In Line Package) for through-hole mounting, it offers a 2.54mm pin pitch and operates within a temperature range of 0°C to 70°C.
Package
PDIP
Key Features
Package: PDIP; Logic Function: Counter
Lifecycle Status
Active
Datasheet
SN74ALS191N3 Datasheet
Quick Jump:
Technical Specifications
Texas Instruments SN74ALS191N3 Shift Registers technical specifications.
General
Number of Pins
16
Mounting Type
Through Hole
Operating Temperature
0°C ~ 70°C
Basic Package Type
Through Hole
Package Family Name
DIP
Package
PDIP
Package Description
Plastic Dual In Line Package
Lead Shape
Through Hole
Pcb
16
Package Length Mm
19.69(Max)
Alternate Parts Comparison (SN74ALS191N3 vs SN74ALS03BDR vs SN74ALS133DR vs SN74ALS161BDR)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| 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 |
| Package / Case | -- | 14-SOIC | 16-SOIC | 16-SOIC |
| Supply Voltage | -- | 4.5V ~ 5.5V | 4.5V ~ 5.5V | 4.5 V ~ 5.5 V |
| Logic Type | -- | NAND Gate | NAND Gate | Binary Counter |
| Action |
Texas Instruments SN74ALS191N3 Shift Registers Overview
Bi-directional, positive-edge triggered 4-bit binary UP/DOWN counter IC. This integrated circuit features a single 4-stage counter with 4 inputs and 4 outputs, operating with Bipolar process technology and ALS logic family. Packaged in a 16-pin PDIP (Plastic Dual In Line Package) for through-hole mounting, it offers a 2.54mm pin pitch and operates within a temperature range of 0°C to 70°C.
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