SN74LS166ANIn StockTexas Instruments
SN74LS166AN is an 8-bit parallel-in serial-out shift register from Texas Instruments, operating at up to 25 MHz with LS TTL logic. Features clock inhibit, 16-pin DIP package. From $0.66 in stock worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- SN74LS166AN Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.6605(MOQ 282)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 8-bit parallel-in serial-out shift register with synchronous parallel load
- Clock inhibit input for flexible data flow control
- High-speed LS TTL logic operating at up to 25 MHz
- 16-pin DIP (R-PDIP-T16) package for easy through-hole PCB assembly
- Low output current (I(ol) 8 mA) for reliable bus driving
Applications
The SN74LS166AN is widely used in serial data transmission systems where parallel data must be converted to a serial bitstream, such as microcontroller interfaces, display drivers, and communication buses. It is commonly employed in industrial control, test equipment, and embedded systems requiring data serialization. Its clock inhibit feature makes it especially useful in applications needing precise timing control over data shifting operations.
Specifications
| YTEOL | 15 |
| Additional Feature | CLOCK INHIBIT |
| Count Direction | RIGHT |
| Family | LS |
| JESD-30 Code | R-PDIP-T16 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 15pF |
| Logic IC Type | PARALLEL IN SERIAL OUT |
| Max Frequency@Nom-Sup | 25000000Hz |
| Max I(ol) | 0.008A |
| Number of Bits | 8 |
| Number of Functions | 1 |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP16,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Packing Method | TUBE |
| Power Supply Current-Max (ICC) | 32mA |
| Prop. Delay@Nom-Sup | 25ns |
| Propagation Delay (tpd) | 25ns |
| Qualification Status | Not Qualified |
| Schmitt Trigger | NO |
| Supply Voltage-Max (Vsup) | 5.25V |
| Supply Voltage-Min (Vsup) | 4.75V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | NO |
| Technology | TTL |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Trigger Type | POSITIVE EDGE |
| fmax-Min | 25MHz |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Malaysia, Mexico |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the maximum operating frequency of the SN74LS166AN?
The SN74LS166AN can operate at a maximum frequency of 25 MHz (25,000,000 Hz) at nominal supply voltage. This makes it suitable for high-speed serial data conversion applications in embedded systems and communication interfaces.
What package type does the SN74LS166AN come in?
The SN74LS166AN is available in a 16-pin Dual-In-Line Package (DIP), specifically the R-PDIP-T16 JESD-30 code. This through-hole package is ideal for prototyping, hobbyist projects, and industrial designs requiring robust PCB mounting.
What are typical applications for the SN74LS166AN shift register?
The SN74LS166AN is used in serial data transmission, microcontroller peripheral interfacing, display driving, industrial automation, and test equipment. Its parallel-in serial-out architecture efficiently converts 8-bit parallel data into serial streams for transmission or processing.
What is a suitable replacement or alternative for the SN74LS166AN?
Compatible alternatives to the SN74LS166AN include the SN74HC166 (CMOS version for lower power), SN74HCT166 (TTL-compatible CMOS), and the SN74ALS166 (advanced low-power Schottky). These alternatives maintain the same 8-bit parallel-in serial-out function with pin-compatible 16-pin DIP packages.
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Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 282+ | $1.0700 | $301.74 |
| 1000+ | $0.7290 | $729.00 |
| 2500+ | $0.7020 | $1755.00 |
| 5000+ | $0.6860 | $3430.00 |
| 100000+ | $0.6605 | $66050.00 |
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