Overview
The 74HC166DB,112 is an 8-bit parallel-in/serial-out shift register produced by Nexperia (formerly part of NXP Semiconductors). This component is part of the 74HC series and is designed for a wide range of digital logic applications. It features both serial and parallel input capabilities, making it versatile for various system designs. The device operates within a supply voltage range of 2.0 V to 6.0 V, ensuring compatibility with different system voltages.
Key Specifications
| Parameter | Description |
|---|---|
| Logic Type | Shift Register |
| Output Type | Push-Pull |
| Number of Elements | 1 |
| Number of Bits per Element | 8 |
| Function | Parallel or Serial to Serial |
| Voltage - Supply | 2 V ~ 6 V |
| Operating Temperature | -40°C ~ 125°C |
| Mounting Type | Surface Mount |
| Package / Case | 16-SSOP (0.209", 5.30mm Width) |
| Input Levels | CMOS level |
| ESD Protection | HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V, CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V |
Key Features
- Wide supply voltage range from 2.0 V to 6.0 V
- CMOS low power dissipation
- High noise immunity
- Latch-up performance exceeds 100 mA per JESD 78 Class II Level B
- Synchronous parallel-to-serial applications
- Synchronous serial input for easy expansion
- Complies with JEDEC standards: JESD8C (2.7 V to 3.6 V) and JESD7A (2.0 V to 6.0 V)
- Inputs include clamp diodes for interfacing with voltages in excess of VCC
Applications
The 74HC166DB,112 is suitable for a variety of digital logic applications, including:
- Synchronous parallel-to-serial data conversion
- Serial data transmission systems
- Digital signal processing
- Microcontroller and microprocessor interfaces
- General-purpose digital logic circuits
Q & A
- What is the primary function of the 74HC166DB,112?
The primary function is to act as an 8-bit parallel-in/serial-out shift register.
- What is the supply voltage range for this component?
The supply voltage range is from 2.0 V to 6.0 V.
- What type of input levels does the 74HC166 support?
The 74HC166 supports CMOS input levels.
- What is the operating temperature range for this component?
The operating temperature range is from -40°C to 125°C.
- What type of package does the 74HC166DB,112 come in?
The component comes in a 16-SSOP package.
- Does the 74HC166DB,112 have ESD protection?
- How does the parallel enable input (PE) affect the shift register?
When PE is LOW, data from D0 to D7 is loaded into the shift register on the next LOW-to-HIGH transition of the clock input (CP). When PE is HIGH, data enters the register serially at DS.
- What is the role of the clock enable input (CE) in the 74HC166DB,112?
A LOW on CE enables data to be shifted on the LOW-to-HIGH transitions of CP, while a HIGH on CE disables the CP input.
- Is the 74HC166DB,112 compliant with any JEDEC standards?
- What are some common applications for the 74HC166DB,112?
Common applications include synchronous parallel-to-serial data conversion, serial data transmission systems, digital signal processing, and general-purpose digital logic circuits.
