Overview
The 74LV165D,112 is an 8-bit parallel-in/serial-out shift register manufactured by Nexperia USA Inc. This device is designed to handle both parallel and serial data inputs, making it versatile for various digital circuit applications. It features a serial data input (DS), eight parallel data inputs (D0 to D7), and two complementary serial outputs (Q7 and Q7'). The parallel load input (PL) allows asynchronous loading of data from D0 to D7 when it is LOW, while data enters the register serially at DS when PL is HIGH. The clock enable input (CE) and clock input (CP) control the shifting of data, with CE disabling the CP input when HIGH.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Voltage Supply Range | 1.0 | 5.5 | V | ||
| Operating Temperature Range | -40 | 125 | °C | ||
| Input Voltage (VIH) | VCC = 4.5 V to 5.5 V | 0.7VCC | 0.7VCC | V | |
| Propagation Delay (tpd) | VCC = 3.0 V to 3.6 V | 22 | 36 | 45 | ns |
| Power Dissipation Capacitance (CPD) | VCC = 3.3 V | 35 | pF | ||
| Package Type | 16-SOIC (0.154", 3.90mm Width) |
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 250 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.
- Complies with JEDEC standards: JESD8-7, JESD8-5, JESD8C, and JESD36.
- ESD protection: HBM JESD22-A114F exceeds 2000 V, MM JESD22-A115-A exceeds 200 V.
- Power-down mode.
Applications
The 74LV165D,112 is suitable for a variety of digital circuit applications, including:
- Synchronous parallel-to-serial data conversion.
- Serial data transmission and reception.
- Expansion of parallel-to-serial converters by cascading multiple devices.
- Low voltage digital systems requiring low power consumption.
- Systems that require direct interface with TTL levels.
Q & A
- What is the primary function of the 74LV165D,112?
The primary function is to act as an 8-bit parallel-in/serial-out shift register, allowing both parallel and serial data input and output.
- What is the voltage supply range for the 74LV165D,112?
The voltage supply range is from 1.0 V to 5.5 V.
- How does the parallel load input (PL) function?
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) and clock input (CP)?
The CE input disables the CP input when HIGH, and data is shifted on the LOW-to-HIGH transitions of CP when CE is LOW.
- What are the operating temperature ranges for the 74LV165D,112?
The operating temperature range is from -40°C to +125°C.
- Does the 74LV165D,112 comply with any industry standards?
Yes, it complies with JEDEC standards: JESD8-7, JESD8-5, JESD8C, and JESD36.
- What is the package type of the 74LV165D,112?
The package type is 16-SOIC (0.154", 3.90mm Width).
- What is the ESD protection level of the 74LV165D,112?
The ESD protection exceeds 2000 V for HBM JESD22-A114F and 200 V for MM JESD22-A115-A.
- Can the 74LV165D,112 be used in low voltage applications?
Yes, it is optimized for low voltage applications from 1.0 V to 3.6 V.
- How can multiple 74LV165D,112 devices be expanded for serial data transmission?
Multiple devices can be cascaded by tying the output Q7 to the input DS of the succeeding stage.
