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74AHC245PW
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製造商Nexperia
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製造商部分 #74AHC245PW
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有存貨13130
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規格
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概述
Description
The 74AHC245PW operates with a wide voltage range from 2.0V to 5.5V, making it suitable for various applications. It is part of the Advanced High-Speed CMOS (AHC) family, ensuring low power consumption and high-speed operation. Packaged in a TSSOP (Thin Shrink Small Outline Package), it is ideal for space-constrained applications. The device is commonly used in microcontroller interfacing, memory address/data multiplexing, and bidirectional communication systems.
Equivalent
1. SN74AHC245 from Texas Instruments
2. MC74VHC245 from ON Semiconductor
3. TC74VHC245 from Toshiba
4. HEF245 from Nexperia
5. CD74HCT245 from Texas Instruments
These alternatives offer similar functionality, pin compatibility, and electrical characteristics, but always verify the datasheet for specific requirements and compatibility.
Features
Additional characteristics include a high noise immunity and the capability to drive 15 LSTTL loads. The device is also equipped with inputs that are tolerant of 5 V voltage levels, making it suitable for mixed-voltage applications. It is packaged in various forms, including TSSOP and SO packages, which are ideal for space-constrained applications. With a wide range of operating temperatures, it suits various environmental conditions, ensuring versatility across different applications.
Pinout
- Pin Count: 20 pins
- Pin Functions:
- Pin 1: DIR (Direction control)
- Pin 2-9: A0-A7 (Data inputs/outputs for the A bus)
- Pin 10: GND (Ground)
- Pin 11-18: B0-B7 (Data inputs/outputs for the B bus)
- Pin 19: /OE (Output Enable, active low)
- Pin 20: VCC (Supply voltage)
The direction control pin (DIR) determines the direction of data transfer. When DIR is high, data flows from the A bus to the B bus. When DIR is low, data flows from the B bus to the A bus. The output enable pin, when low, enables the data transfer; when high, it places the outputs in a high-impedance state. This device is often used in digital systems for buffering and level shifting.
Manufacturer
Application
1. Microprocessor/microcontroller systems: Facilitates bidirectional data transfer between CPU and peripherals.
2. Memory interfacing: Assists in data exchange between different memory units.
3. Bus-oriented systems: Used in address/data buses to control data flow.
4. Industrial automation: Supports communication in control systems.
5. Networking equipment: Provides interfacing solutions in routers and switches.
These capabilities make it suitable for improving data integrity and efficiency in various electronic systems.