SN74HC166PWIn StockTexas Instruments
The SN74HC166PW is an 8-bit parallel-in/serial-out shift register from Texas Instruments. It operates from 2V to 6V with a maximum clock frequency of 25 MHz and 50 pF load capacitance, available in a 16-pin TSSOP package. From $0.36 in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- SN74HC166PW Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.3636(MOQ 1000)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 8-bit parallel-load shift register with serial-in/serial-out operation supporting flexible data input modes
- Wide supply voltage range of 2V to 6V for compatibility with various logic families and systems
- High-speed operation up to 25 MHz clock frequency with HC/UH logic family performance
- 16-pin TSSOP (TVSOP) package enabling compact PCB footprint for space-constrained designs
- Asynchronous master reset and synchronous clock inhibit for full control of shift register operation
Applications
The SN74HC166PW is widely used in serial data communication interfaces, microcontroller peripheral expansion, and industrial control systems where parallel-to-serial data conversion is required. It is suitable for keyboard scanning, LED display driving, and data acquisition systems. The device also finds use in test equipment and embedded systems requiring compact, low-power logic functions.
Specifications
| YTEOL | 0 |
| Additional Feature | SISO OPERATION ALSO AVAILABLE |
| Count Direction | RIGHT |
| Family | HC/UH |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | PARALLEL IN SERIAL OUT |
| Max Frequency@Nom-Sup | 25000000Hz |
| Max I(ol) | 0.0052A |
| Number of Bits | 8 |
| Number of Functions | 1 |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP16,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.08mA |
| Prop. Delay@Nom-Sup | 32ns |
| Propagation Delay (tpd) | 190ns |
| Qualification Status | Not Qualified |
| Schmitt Trigger | NO |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Trigger Type | POSITIVE EDGE |
| fmax-Min | 24MHz |
| ## SN74HC166PW Alternates Showing results | Image |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SN74HC166PW:
suggested
suggested
Frequently Asked Questions
What is the operating voltage range of the SN74HC166PW?
The SN74HC166PW operates over a supply voltage range of 2V to 6V, making it compatible with both 3.3V and 5V logic systems. This wide range allows it to interface directly with a variety of microcontrollers and digital logic devices without additional level shifting.
What package does the SN74HC166PW come in and what are its dimensions?
The SN74HC166PW is available in a 16-pin TSSOP (Thin Shrink Small Outline Package) with a 4.4 mm body width and 0.65 mm pin pitch. This compact surface-mount package is well suited for space-constrained PCB designs in consumer electronics and industrial applications.
What is the maximum clock frequency supported by the SN74HC166PW?
The SN74HC166PW supports a maximum clock frequency of 25 MHz at nominal supply voltage with a load capacitance of 50 pF. This makes it suitable for high-speed serial data transfer applications including communication buses and data acquisition systems.
What are typical applications for the SN74HC166PW shift register?
The SN74HC166PW is commonly used in serial data communication, keyboard and switch matrix scanning, LED display multiplexing, SPI bus expansion, and parallel-to-serial data conversion for microcontroller interfaces. It is also used in industrial automation and test equipment designs.
Is the SN74HC166PW RoHS compliant and what is its JEDEC moisture sensitivity level?
Yes, the SN74HC166PW is RoHS compliant as indicated by its JESD-609 Code e4, which confirms lead-free and halogen-free construction. Texas Instruments manufactures this device in compliance with international environmental regulations for use in modern electronics manufacturing.
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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 |
|---|---|---|
| 1000+ | $0.7313 | $731.30 |
| 1080+ | $0.3636 | $392.64 |
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