SN74LVC1G07DBVR: Comprehensive Analysis of Open-Drain Buffer

The SN74LVC1G07DBVR belongs to the 74LVC series of logic devices. It is manufactured using low-power CMOS technology and features high-speed response capability and excellent voltage compatibility. This chip provides a non-inverting buffer, with its output being an open-drain structure and requiring an external pull-up resistor. This design makes it highly suitable for multi-point communication, signal "wire-and" (wired-AND) logic, and level conversion applications.

Features

•Utilizes ultra-small 0.64mm²package (DPW) with 0.5mm spacing

•Supports 5V VCC operation

•Input and open-drain output support a maximum voltage of 5.5V

•Supports both upward and downward conversion

•When the voltage is 3.3V, the maximum tpd is 4.2ns

•Low power consumption, maximum ICC of 10µA

•When the voltage is 3.3V, the output drive is±24mA

•Ioff supports power-on insertion, local shutdown mode, and post-drive protection

•Latch performance exceeds 100mA, in accordance with Class II specification {13} JESD

•ESD protection performance exceeds the requirements of JESD 22 specification

- 2000V human discharge model (A114-A)

-200V machine model (A115-A)

-1000V charger component model (C101)

Description

This single-channel buffer/driver is specifically designed for operation at a VCC voltage range of 1.65V to 5.5V. The output of the SN74LVC1G07 device is open-drain, allowing it to be connected to other open-drain outputs, thereby enabling low-level effective OR or high-level effective AND functions. The maximum driving current is 32mA. The SN74LVC1G07 is available in various packages, including a compact DPW package with dimensions of 0.8mm×0.8mm.

Pin Configuration and Functions

Absolute Maximum Ratings

Typical Application

1. Level Converter

Due to its open-drain output structure and wide input voltage range, the SN74LVC1G07 can be used for interface bridging between different logic level systems. For example, it can receive an input signal of 3.3V and simultaneously pull the output level up to 5V through an upper pull-up resistor, achieving the level shifting function.

2. Wired-AND

The outputs of multiple chips can be directly connected to a single bus and pulled up through a common pull-up resistor. As long as one output is at a low level, the entire bus level will be low, achieving the effect of logical "AND".

3. Bus Driver/Buffer

When it is necessary to isolate or buffer digital signals, this chip can be used to enhance the signal integrity of the system and prevent interference from directly occurring between the driver end and the receiver end.

Notes for Attention

1.An upper pull-up resistor must be used; otherwise, the output terminal will be in a high-impedance state during the high voltage period, preventing it from properly outputting logic1.

2.Avoid floating input. It is recommended to connect the input terminal to a known level (high or low) through a resistor to ensure a stable logic state.

3.The driving capability is strong but it should not be overloaded. A reasonable selection of the pull-down current is necessary to prevent overheating or damage to the components.

Summary

The SN74LVC1G07DBVR is a compact and stable open-drain buffer with excellent performance. It is widely used in signal processing, level conversion, and bus driving, etc. Thanks to its high speed, low power consumption, strong driving capability, and flexible operating voltage range, it is one of the indispensable logic devices in flexible and highly reliable electronic systems.