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Name: 74HC373D
Brand: Toshiba Semiconductor and Storage
SKU: 74HC373D
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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Toshiba Semiconductor and Storage 74HC373D

Part No.:: 74HC373D

Manufacturer:: Toshiba Semiconductor and Storage

Package:: 20-SOIC (0.295, 7.50mm Width)

Datasheet:: 74HC373D.pdf

Description:: IC LATCH OCTAL D 3ST 20SOIC

In Stock:: 3683

Quantity:: Add To Cart

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74HC373D Typical application Circuitry

74HC373D

The 74HC373D is a prominent integrated circuit in the digital world. The 74HC373D functions essentially as an octal D-type transparent latch. This means it holds or "latches" eight data bits, allowing data to flow or be "latched" based on the control signal it receives.

74HC373D Features:

- Latch Type: The 74HC373D is an octal D-type transparent latch. It can hold eight data bits.

- Operating Voltage: This IC typically works between a voltage range of 2V to 6V.

- Controlled by LE Pin: The Latch Enable (LE) pin determines whether data is allowed to flow through or is held constant.

- High-speed Performance: As part of the HC series, the 74HC373D boasts high-speed operations.

Application Scenarios for 74HC373D:

- Memory Systems: Used in data storage and data transfer systems.

- Data Buses: Facilitates temporary storage or isolation of data in microcontroller or microprocessor systems.

- Output Expansions: Useful when a system requires more outputs than a microcontroller can provide.

Detailed Circuit Application: Data Bus Interface:

Imagine you are interfacing a microcontroller to multiple peripherals, and you wish to use the 74HC373D to latch onto data sent on a data bus temporarily.

1. Power Connections:

- VCC (Pin 20): Attach to the positive power supply, often +5V in many systems.

- GND (Pin 10): This pin needs to be connected to the common ground of the circuit.

2. Data Bus Configuration:

- D0-D7 (Pins 11-18): These pins are the data inputs. Connect them to your microcontroller's data bus. Let's say it's an 8-bit data bus from a microcontroller.

3. Latch Enable:

- LE (Pin 11): The Latch Enable pin determines when the data is latched. Connect this to a control signal from your microcontroller. The 74HC373D becomes transparent when this pin is HIGH, allowing the data to pass through. When LOW, the last data seen is "latched" or held.

4. Output Pins:

- Q0-Q7 (Pins 2-9): These are the output pins. They can connect to the input of other digital devices or peripherals. They will either show the current data (when LE is HIGH) or the latched data (when LE is LOW).

Design Considerations:

- Signal Integrity: Ensure signals, especially the data bus, maintain their integrity. Use proper routing techniques and avoid long, unshielded traces.

- Decoupling: To minimize voltage fluctuations, attach a decoupling capacitor, such as a 0.1µF ceramic capacitor, between the VCC and GND pins.

- Latch Timing: Be attentive to the timing of the Latch Enable signal, especially in high-speed operations. Unexpected data might get latched if not correctly timed.

- Output Load: The 74HC373D's outputs have current limitations. If connecting to devices that demand higher current, utilize buffer circuits.

In wrapping up, the 74HC373D remains an integral element in various digital applications, primarily due to its latching capabilities. Properly understanding its operations and adhering to good design principles is paramount to harness its full potential effectively.

74HC373D information

74HC373D Specifications

Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
Series:
74HC
ProductStatus:
Active
LogicType:
D-Type Transparent Latch
Circuit:
8:8
OutputType:
Tri-State
Voltage-Supply:
2V ~ 6V
IndependentCircuits:
1
DelayTime-Propagation:
30ns
Current-OutputHighLow:
7.8mA, 7.8mA
OperatingTemperature:
-40°C ~ 125°C
MountingType:
Surface Mount

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6. What is the process for return or replacement of 74HC373D?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the 74HC373D we delivered, we will accept the replacement or return of the 74HC373D only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of 74HC373D.

(3)The PartNo is unused and only in the original unpacked packaging.

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(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations