SN74HC373DTR

The SN74HC373DTR is a high-performance, octal D-type latch with tri-state outputs, belonging to the 74HC series of CMOS integrated circuits. Here is a detailed description of the SN74HC373DTR in English:

SN74HC373DTR: High-Speed CMOS Octal D-Type Latch with Tri-State Outputs

Key Features and Specifications:

1. Octal D-Type Latch:
   • The SN74HC373DTR contains eight independent D-type latches, each with a D input, a latch enable (LE) input, and an output (Q).
   • When the LE input is HIGH, the latches are transparent, meaning that the outputs follow the changes in the corresponding D inputs.
   • When the LE input is LOW, the latches hold the data present at their inputs at the time the LE input fell, and the outputs remain unchanged until the LE input is again asserted HIGH.
2. Tri-State Outputs:
   • The outputs of the latches can be placed in a high-impedance (tri-state) mode by asserting the output enable (OE) input HIGH.
   • This feature allows the latches to be connected to bus lines without interfering with other devices on the bus when not actively driving the bus.
3. CMOS Technology:
   • The IC uses advanced CMOS technology to offer high-speed switching with minimal power consumption.
   • This makes it suitable for use in applications requiring low power and high performance.
4. Wide Operating Voltage Range:
   • The SN74HC373DTR can operate with a supply voltage (VCC) ranging from 2V to 6V.
   • This flexibility allows it to be used in a variety of applications with different power supply requirements.
5. High-Speed Operation:
   • The IC offers fast propagation delays, making it suitable for use in high-frequency digital circuits.
6. Low Power Consumption:
   • The SN74HC373DTR consumes very little power, especially in standby mode when the OE input is HIGH.
7. Input Protection:
   • The IC includes input clamp diodes to protect against overvoltage conditions.
   • These diodes help to prevent damage to the IC in case of incorrect voltage levels or transient voltage spikes.
8. Package and Pin Configuration:
   • The SN74HC373DTR is typically packaged in a small outline integrated circuit (SOIC) package with 20 pins.
   • The pin layout provides easy access to all input, output, power, ground, LE, and OE pins.

Applications:

The SN74HC373DTR can be used in a wide range of digital systems and applications, including:

• Data buffering and latching in digital circuits.
• Driving bus lines in multiplexed systems.
• Interfacing with microprocessors, microcontrollers, and other digital ICs.
• General-purpose latching and storage of digital signals.

In summary, the SN74HC373DTR is a versatile, high-speed CMOS octal D-type latch with tri-state outputs that offers low power consumption, wide operating voltage range, and input protection. Its compact SOIC package makes it easy to integrate into various digital systems and applications.