What is the difference between 74hc245 and 74hc573

245 is the transmitter and 573 is the latch. The 573 can latch the signal and liberate the IO port, and the dynamic scanning 245 can also be used to expand the IO port. The premise is that the output is terminated with a device that is not very sensitive to sudden signal changes, and the 573 is better than the 245 in this regard

However, the 245 has a two-way transmission function, which the 573 does not have. In the case of driving digital tubes, LEDs, etc., both are universal.

The 74HC245 is an octa-non-inverting three-state transceiver and the 74HC573 is an 8-bit three-state latch.

Summary. Difference between 74HC and 74LS (1).

74LS belongs to TTL type ICs, while 74HC belongs to CMOS integrated circuits.

The definition of high level and low level of LS and HC is different, and the high level of HC is specified as the double supply voltage, and the low level is specified as the multiple supply voltage. ls specifies high and low. The characteristics of the load are different.

HC pulls up and pulls down the same ability, LS pulls up weakly and pulls down strongly. The input characteristics are different. The HC input resistance is very high, and the level is variable when the input is open.

There is a pull-up inside the LS input, and it is high when the input is open.

The difference between 74HC and 74HCT series.

Difference between 74HC and 74LS (1).

74LS belongs to TTL type ICs, while 74HC belongs to CMOS integrated circuits.

The definition of high level and low level of LS and HC is not the same, and the high level of HC is specified as the power supply voltage, and the low level is specified as the power supply voltage. ls specifies high and low. The characteristics of the load are different.

HC pull-up and pull-down ability is the same, LS pull-up is weak and several staring down-pulls are strong. The input characteristics are different. The HC input resistor is wide open, and the level is variable when the input is open.

There is a pull-up inside the LS input, and it is high when the input is open.

1) The 74LS series is a "low-power SCHOTKY TTL", collectively referred to as the 74LS series. Its improved version is "Advanced Low Power Consumption Xiao Xiaozhou Ttl", which is the 74ALS series trace, and its performance is better than that of 74LS.

2) 74HC series, which has the low power consumption of CMOS and the performance equivalent to 74LS high speed, belongs to a high-speed and low-power product.

3) The working frequency of both of the above is below 30MHz, and 74ALS is slightly higher, up to 50MHz.

4) But their operating voltages are very different: 74V for the 5LS series and 74V for the 2HC series.

5) Fan-out energy Sakura tie force: 74LS series is 20, while 74HC series is as high as 1000 at DC time, but it is very low when taking the current next to the ridge, which is determined by the working frequency.

The 74HC belongs to the CMOS series, with high input impedance, high output voltage (logic 1), and poor driving ability;

74LS belongs to TTL series, the output voltage is low (logic 1), and the driving ability is strong;

It has little to do with the single-chip microcomputer, but try to use the same type of chip, that is, the 74HC series.

I'm sorry, I read the wrong way, and I made the wrong difference.

Here's what you're going to consult.

It is a high-speed CMOS device with the 74HCT, which is the same as the Chawuxin series, where the 74HCT has a TTL level input signal.

Both the 74HC245 and SN74HC245 are logic gate chips, but there are some differences between them. among them"74"This means that this is a standard series of logic chips"hc"means that this is a high-speed CMOS logic chip, and"sn"It means that this is a logic chip produced by Texas Instruments.

The main differences are in the manufacturer and package type. 74HC245 is manufactured by multiple manufacturers, so there may be different brands and vendors. The SN74HC245 is manufactured by Texas Instruments and bears the company's brand identity.

In addition, there may be differences in package types. The 74HC245 and SN74HC245 may be available in different packages, such as DIP, SOP, TSSOP, etc. The choice of package type may be related to specific application needs, soldering process, or space constraints.

It is important to note that apart from the differences in manufacturers and package types, their functional and performance specifications should be the same.

Extended content: Logic gate chips play an important role in digital circuits, and they are able to implement various logic functions, such as AND gates, OR gates, NAND gates, etc. In practical applications, we select the appropriate logic gate chips according to specific needs and specifications.

When selecting a logic gate chip, in addition to considering the manufacturer and package type, it is also necessary to pay attention to the chip's operating voltage, operating frequency, power consumption, and input and output level parameters. These parameters directly affect the performance and application range of the chip.

Therefore, before choosing 74HC245 and SN74HC245, we should carefully understand their specifications and characteristics, and make a suitable choice according to the specific application needs. At the same time, we can also refer to other users' evaluations and practical application cases to get more information about these two chips. Let laugh on the chain.

The 74HC245 and SN74HC245 are different specifications and package types of the same chip. The 74HC245 refers to the 74 series logic devices manufactured using the HC logic family, while the SN74HC245 refers to the 74 series logic devices manufactured using the SN logic family.

The difference between the two models is mainly in the manufacturer and package type. The 74HC245 is manufactured by several manufacturers, while the SN74HC245 is manufactured by Texas Instruments. In addition, their package types may also differ, such as DIP packages, SOIC packages, etc.

When choosing which model to use, you can decide according to your actual needs and use environment. There may be slight differences between manufacturers, such as differences in operating temperature range, electrical characteristics, etc. At the same time, different package types can also affect the design and layout of the board.

It should be noted that both 74HC245 and SN74HC245 have the same function and logic characteristics, and they are both tri-state buffers with 8-bit bidirectional parallel data transmission function. Therefore, when choosing, the differences between manufacturers and packaging types can be considered according to actual needs, as well as factors such as ** and availability.

Extended Content: In addition to the 74HC245 and SN74HC245, there are many other models of on-the-road cavity logic, each with its own specific features and application scenarios. In electronic design and circuit layout, it is very important to choose the right logic device, which will directly affect the performance and stability of the circuit.

Therefore, understanding the characteristics and differences of different models can be better applied to practical projects.

Both 74HC245 and SN74HC245 are one of the logic chips, and their main difference is the difference in prefixes. "74hc"with"sn74hc"Indicates a different manufacturer or merchant.

1.74HC245: This is NXP Semiconductors' product family, which:"74hc"Represents the high-speed CMOS logic family.

The chip features high-speed operation and low power consumption, making it suitable for most logic circuit applications.

2.SN74HC245: This is part of Texas Instruments' product line"sn"Signifies Texas Instruments.

Similarly, it belongs to the high-speed CMOS logic family and has similar characteristics and applications.

The functions and specifications of the two chips are similar, and they are mainly used for level shifting and circuit buffering. They are both bidirectional bus converters with 8-bit data Huss transmission. In practical applications, the choice of which chip to use can be considered according to factors such as business preferences, cost, and reliability.

It should be noted that different manufacturers may have differences in product performance, packaging, temperature range, etc., so when selecting and using, you should also consult the relevant specifications and technical information to ensure that the selected chip meets the specific needs.

Extended content: In addition to the 74HC245 and SN74HC245, there are many other manufacturers and series of logic chips, such as CD74HC245, MC74HC245, etc. Each series of chips has its own specific specifications and characteristics, so when selecting the right chip, it is also necessary to consider factors such as electrical characteristics, package form, and operating temperature range to meet specific application needs.

Both 74HC245 and SN74HC245 belong to integrated circuit chips, but there are some differences between them. Among them, 74HC245 refers to the 74 series bidirectional bus buffer chip manufactured by the HC logic family, while SN74HC245 refers to the 74 series bidirectional bus conversion chip manufactured by the HC logic family.

These differences are mainly due to differences in the naming standards of manufacturers and product lines. In this case, the prefix"sn"Represented Texas Instruments, and not"sn"The prefix may be the same chip from another manufacturer. And the digital part"74hc245"Indicates the functions and specifications of the chip, where"74"Represents the Logic Family series,"hc"Represents high-speed CMOS technology,"245"Indicates the specific function of the chip, i.e., a bidirectional bus buffer converter.

It should be noted that although there are some differences in naming, in terms of features and specifications, the 74HC245 and SN74HC245 are the same, they have the same pin function and working principle. Therefore, no matter which chip is chosen, the power of bidirectional bus buffering or conversion can be realized.

Extended content: In addition to the 74HC245 and SN74HC245, there are other similar bidirectional bus buffer chips, such as 74LS245 and 74HCT245. This traps require that chips may vary in terms of manufacturer, electrical characteristics, and operating temperature range, so choosing the right chip is based on your specific application needs and specifications.

Both 74HC245 and SN74HC245 are logic gate chips, and the difference between them lies in the difference in prefix letters and suffix numbers. The prefix letter indicates the manufacturer or brand, while the suffix number indicates the specification or function of the chip.

74"It is a common prefix that represents a family of many logic gate chips, including the 74HC and SN74 series. HC stands for the high-speed CMOS logic family, while SN stands for the logic family manufactured by Texas Instruments.

Therefore, the 74HC245 and SN74HC245 are identical in function and performance, and they are both 8-bit bidirectional bus converters with similar input and output characteristics. They can be used in digital circuits for bidirectional data transmission and bus control.

It is important to note that different manufacturers may differ in terms of packaging, operating voltage range, power consumption, etc. Therefore, when selecting a chip, in addition to focusing on the model, it is also necessary to refer to the manufacturer's specification sheet and data sheet to ensure that it meets the requirements of the specific application.

Extended content: In addition to the 74HC245 and SN74HC245, there are many other types of logic gate chips that can be used for similar applications. For example, the 74LS245 is a logic gate chip of the LS family, which uses low-power TTL technology and has similar features to the 74HC245.

Therefore, when choosing a logic chip, it is necessary to choose the appropriate model according to the specific application needs and the manufacturer's requirements.

Both the 74HC245 and SN74HC245 are logic level translators, but there are some differences.

First of all, both the 74HC245 and SN74HC245 belong to the logic gate family, and both are chips made with high-speed CMOS technology. Their main function is to convert the input level signal into an output level signal for interconnection between different voltage logic circuits.

However, the difference is that they are manufactured differently. The 74HC245 is manufactured by NXP (formerly Philips), while the SN74HC245 is manufactured by Texas Instruments.

While there is no essential difference in functionality between the two chips, they may have subtle differences in the following aspects due to differences in manufacturers:

1.Specifications: Different manufacturers may vary in terms of specifications, such as operating voltage range, input and output current, power consumption, etc. Therefore, in specific applications, it is necessary to select the appropriate chip according to the actual needs.

2.Package type: Different manufacturers may offer different package types, such as DIP, SOP, SSOP, etc. Different package types are suitable for different application scenarios, and it is necessary to select the appropriate package type according to the actual layout and soldering requirements.

In summary, the difference between 74HC245 and SN74HC245 lies in the manufacturer and possible subtle parameter specifications. When choosing, you need to decide which chip to use according to your specific needs and application scenarios.