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Name: 74HCT245D
Brand: Toshiba Semiconductor and Storage
SKU: 74HCT245D
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 74HCT245D

Part No.:: 74HCT245D

Manufacturer:: Toshiba Semiconductor and Storage

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

Datasheet:: 74HCT245D.pdf

Description:: IC TXRX NON-INVERT 5.5V 20SOIC

In Stock:: 2390

Quantity:: Add To Cart

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74HCT245D Specifications

Package/Case:
20-SOIC (0.295, 7.50mm Width)
Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
Series:
74HCT
ProductStatus:
Active
LogicType:
Transceiver, Non-Inverting
NumberofElements:
1
NumberofBitsperElement:
8
InputType:
-
OutputType:
3-State
Current-OutputHighLow:
6mA, 6mA
Voltage-Supply:
4.5V ~ 5.5V
OperatingTemperature:
-40°C ~ 125°C (TA)
MountingType:
Surface Mount

74HCT245D this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including 74HCT245D price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for 74HCT245D to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.

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74HCT245D information

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74HCT245D Typical application Circuitry

74HCT245D

Octal bus transceiver 74HCT245D, from the high-speed CMOS technology (HCT) family, has 3-state outputs. This integrated circuit (IC) is designed to be used in applications where bidirectional data transfer and buffering are necessary, with the ability to drive both high-capacitance loads and low-power applications.

Application Scenarios:

One common application of the 74HCT245D is in microcontroller (MCU) system expansion, where it acts as an interface between the MCU and peripherals or other MCUs operating at different voltage levels. It ensures reliable data transmission even in environments with high electrical noise.

Parameter Features:

The 74HCT245D operates with a supply voltage typically from 4.5V to 5.5V, which is ideal for TTL compatible circuits. It features eight bidirectional data lines (D0-D7), directional control (DIR), output enable (OE), and can operate at high speeds with a significant fan-out capacity. Because of its three-state outputs, it can be linked to a bus without interfering with other connected devices.

Circuit Connection Details:

- Power Supply Connection: Connect the VCC pin of the 74HCT245D to a 5V power source, aligning with its operating voltage range, and ground the GND pin. This setup ensures the IC operates within its intended voltage specifications for optimal performance.

- Direction Control: The data flow direction is set by the DIR pin. Connect DIR to a GPIO pin on the MCU to dynamically control the data direction based on the application's needs, whether reading from or writing to the peripherals.

- Output Enable: Connect the OE pin to another GPIO pin on the MCU. When this pin is low, the 74HCT245D's outputs are active, allowing data transfer.The outputs of the 74HCT245D are in a high-impedance condition when they are high, which essentially disconnects it from the bus.

- Data Lines Connection: Connect D0-D7 pins between the MCU and peripherals. These are the bidirectional data lines through which data is transmitted or received, depending on the DIR pin's state.

- Decoupling Capacitor: Place a decoupling capacitor (e.g., 100nF) close to the VCC and GND pins to stabilize the power supply and minimize voltage spikes.

Design Considerations:

1. Power Supply Stability: Ensure the 5V power supply is stable and clean to prevent operational issues with the 74HCT245D. Voltage fluctuations can affect data integrity and IC performance.

2. Direction Control Logic: Implement proper control logic in the MCU firmware to manage the DIR and OE pins effectively, ensuring that the data flow direction matches the system's current operation mode (reading or writing).

3. Bus Contention: Avoid bus contention by ensuring that only one device drives the bus at any time. In systems where several devices can interact over the same bus lines, this is very crucial.

4. Signal Integrity: Consider the length and routing of the data lines, especially in high-speed applications or noisy environments. Proper PCB layout practices, such as impedance matching and using ground planes, can help maintain signal integrity.

By carefully integrating the 74HCT245D into your design, following these guidelines, you can effectively expand your MCU's interfacing capabilities, enabling robust and reliable communication with a variety of peripherals or other digital systems.

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6. What is the process for return or replacement of 74HCT245D?

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 74HCT245D we delivered, we will accept the replacement or return of the 74HCT245D 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 74HCT245D.

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

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations