The SN74LV373ADBRG4 from Texas Instruments is a high-performance, octal transparent D-type latch with 3-state outputs. It is a member of the 74LV family, which is known for its low-voltage operation and is designed to operate at a VCC range of 2V to 5.5V. This makes it particularly suitable for interfacing with 3.3V components and systems, while still being tolerant to 5V signals, providing a great deal of flexibility for mixed-voltage system design.
With its octal configuration, this latch offers eight latches with transparent D-type inputs in a single package. The transparent nature of the latches means that while the latch-enable (LE) input is high, the Q outputs will follow the data (D) inputs. When LE is taken low, the data that was present at the D inputs at the time the transition occurred will be retained at the Q outputs until LE is returned high again.
Additionally, the SN74LV373ADBRG4 features 3-state outputs, which can be put in a high-impedance state. This is particularly useful for shared data buses where multiple devices may need to take turns driving the bus lines. The output-enable (OE) input controls this feature; when OE is high, the outputs are in the high-impedance state, allowing other devices to drive the bus.
Key features of the SN74LV373ADBRG4 include its wide operating voltage range, low power consumption, and high drive capability. The device is also characterized for operation from -40°C to 85°C, making it suitable for industrial temperature ranges. It comes in a DB type, 20-pin SSOP (Shrink Small-Outline Package), which is optimal for space-constrained applications.
Whether you're designing microprocessor or microcontroller systems, memory interfaces, or simply require a set of reliable latches for data retention purposes, the SN74LV373ADBRG4 is an excellent choice that combines performance, power efficiency, and Texas Instruments' renowned quality and reliability.