Overview
The 74LV164DB112 is an 8-bit serial-in/parallel-out shift register produced by NXP USA Inc. This integrated circuit is part of the 74LV family, known for its low-voltage and low-power consumption characteristics. The device is designed to operate over a wide supply voltage range, making it versatile for various applications. It features two serial data inputs and eight parallel outputs, allowing for efficient data transfer and processing.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage (VCC) | 1.0 | 5.5 | V | ||
| Input Transition Rise and Fall Rate | VCC = 1.0 V to 2.0 V | 500 | ns/V | ||
| VCC = 2.0 V to 2.7 V | 200 | ns/V | |||
| VCC = 2.7 V to 3.6 V | 100 | ns/V | |||
| VCC = 3.6 V to 5.5 V | 50 | ns/V | |||
| Propagation Delay (CP to Qn) | VCC = 1.2 V | 75 | ns | ||
| VCC = 2.0 V | 26 | 39 | 49 | ns | |
| VCC = 2.7 V | 19 | 29 | 36 | ns | |
| VCC = 3.3 V, CL = 15 pF | 12 | ns | |||
| Operating Temperature | -40 | 125 | °C | ||
| Package Type | SC-74A, SOT-753 |
Key Features
- 8-bit serial-in/parallel-out shift register
- Two serial data inputs (DSA and DSB) and eight parallel outputs (Q0 to Q7)
- Data entry through either DSA or DSB, with the other input acting as an active HIGH enable
- Data shifted on the LOW-to-HIGH transition of the clock input (CP)
- Asynchronous master reset (MR) to clear the register and force all outputs LOW
- Wide supply voltage range from 1.0 V to 5.5 V
- CMOS low power dissipation
- Optimized for low-voltage applications: 1.0 V to 3.6 V
- Accepts TTL input levels between VCC = 2.7 V and VCC = 3.6 V
- ESD protection: HBM (ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V), CDM (ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V)
Applications
The 74LV164DB112 is suitable for a variety of applications where serial-to-parallel data conversion is necessary. These include:
- Digital signal processing systems
- Data communication systems
- Display drivers and controllers
- Microcontroller and microprocessor systems
- Automotive and industrial control systems
Q & A
- What is the primary function of the 74LV164DB112?
The primary function is to act as an 8-bit serial-in/parallel-out shift register. - What is the supply voltage range for the 74LV164DB112?
The supply voltage range is from 1.0 V to 5.5 V. - How many serial data inputs and parallel outputs does the device have?
The device has two serial data inputs (DSA and DSB) and eight parallel outputs (Q0 to Q7). - What triggers the data shift in the 74LV164DB112?
Data is shifted on the LOW-to-HIGH transition of the clock input (CP). - How is the register cleared in the 74LV164DB112?
The register is cleared by a LOW on the master reset input (MR), which forces all outputs LOW. - What kind of ESD protection does the 74LV164DB112 have?
The device has ESD protection with HBM exceeding 2000 V and CDM exceeding 1000 V. - What are the operating temperature ranges for the 74LV164DB112?
The operating temperature ranges are from -40 °C to +125 °C. - What package types are available for the 74LV164DB112?
The device is available in SC-74A, SOT-753 packages. - Is the 74LV164DB112 optimized for low-voltage applications?
Yes, it is optimized for low-voltage applications from 1.0 V to 3.6 V. - Can the 74LV164DB112 accept TTL input levels?
Yes, it accepts TTL input levels between VCC = 2.7 V and VCC = 3.6 V.
