Overview
The 74LV165D/AU118 is an 8-bit parallel-in/serial-out shift register produced by NXP USA Inc. This device is part of the 74LV series, known for its low-voltage operation and low power dissipation. It features a serial data input (DS), eight parallel data inputs (D0 to D7), and two complementary serial outputs (Q7 and Q7'). The shift register can operate in both parallel and serial modes, making it versatile for various digital circuit applications.
Key Specifications
| Type number | VCC (V) | Logic switching levels | Output drive capability (mA) | tpd (ns) | fmax (MHz) | Number of bits | Power dissipation considerations | Tamb (°C) | Rth(j-a) (K/W) | Ψth(j-top) (K/W) | Rth(j-c) (K/W) | Package name |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 74LV165D | 1.0 - 5.5 | TTL | ± 12 | 18 | 78 | 8 | Low | -40 ~ 125 | 91 | 9.3 | 51 | SO16 (SOT109-1) |
Key Features
- Wide supply voltage range from 1.0 V to 5.5 V.
- CMOS low power dissipation.
- Direct interface with TTL levels (2.7 V to 3.6 V).
- Latch-up performance exceeds 100 mA per JESD 78 Class II Level B.
- Optimized for low voltage applications: 1.0 V to 3.6 V.
- Synchronous parallel-to-serial applications.
- Synchronous serial input for easy expansion.
- ESD protection: HBM exceeds 2000 V, CDM exceeds 1000 V.
- Inputs include clamp diodes for interfacing with voltages in excess of VCC.
Applications
The 74LV165D/AU118 is suitable for a variety of applications across different industries, including:
- Automotive systems: For data transmission and processing in vehicle electronics.
- Industrial automation: In control systems and data logging applications.
- Consumer electronics: In devices requiring low power and high reliability.
- Mobile and wearable devices: For efficient data handling in portable electronics.
- Computing and networking: In peripheral devices and data communication systems.
Q & A
- What is the primary function of the 74LV165D/AU118?
The primary function is to act as an 8-bit parallel-in/serial-out shift register.
- What is the supply voltage range for the 74LV165D/AU118?
The supply voltage range is from 1.0 V to 5.5 V.
- What are the logic switching levels compatible with this device?
The device is compatible with TTL logic switching levels.
- What is the maximum frequency of operation for the 74LV165D/AU118?
The maximum frequency of operation is 78 MHz.
- What type of ESD protection does the 74LV165D/AU118 have?
The device has ESD protection exceeding 2000 V for HBM and 1000 V for CDM.
- What is the operating temperature range for the 74LV165D/AU118?
The operating temperature range is from -40 °C to +125 °C.
- What package type is the 74LV165D/AU118 available in?
The device is available in a SO16 (SOT109-1) package.
- Can the 74LV165D/AU118 be used in low-voltage applications?
Yes, it is optimized for low voltage applications from 1.0 V to 3.6 V.
- How does the parallel load input (PL) affect the data loading in the 74LV165D/AU118?
When PL is LOW, data from D0 to D7 is loaded into the shift register asynchronously. When PL is HIGH, data enters the register serially at DS.
- What is the role of the clock enable input (CE) in the 74LV165D/AU118?
When CE is LOW, data is shifted on the LOW-to-HIGH transitions of the CP input. A HIGH on CE will disable the CP input.
