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CD74HC238E
+BOMIC DECODER/DEMUX 1X3:8 16DIP
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제조업체텍사스 인스트루먼트(주)
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제조업체 부품 #CD74HC238E
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재고3940
365 1일 품질 보증
7*24 영업 시간 서비스 보증
90-판매 후 1일 보증
정품 보증
사양
| 속성 | 가치 |
| Package | Tube |
| Series | 74HC |
| ProductStatus | Active |
| Type | Decoder/Demultiplexer |
| Circuit | 1 x 3:8 |
| IndependentCircuits | 1 |
| Current-OutputHighLow | 5.2mA, 5.2mA |
| VoltageSupplySource | Single Supply |
| Voltage-Supply | 2V ~ 6V |
| OperatingTemperature | -55°C ~ 125°C |
| MountingType | Through Hole |
| Package/Case | 16-DIP (0.300, 7.62mm) |
개요
Description
Key features include low power consumption due to CMOS technology, high noise immunity, and compatibility with TTL logic levels. The CD74HC238E operates over a wide voltage range, typically from 2V to 6V, making it suitable for various applications. It also includes three enable inputs (G1, G2A, G2B) to control the device operation, offering additional flexibility in system designs. Common applications for the CD74HC238E include data multiplexers, memory address decoding, and other logic-level operations requiring selective routing.
Equivalent
1. SN74HC238N from Texas Instruments
2. MC74HC238 from ON Semiconductor
3. 74HC238 from NXP Semiconductors
4. MM74HC238 from Fairchild Semiconductor (now part of ON Semiconductor)
These alternatives offer similar functionality and performance, making them suitable substitutes in most applications. Always verify pin compatibility and electrical specifications in the datasheets before use.
Features
1. High-Speed Operation: Operates with a typical propagation delay of 15 ns at 5V.
2. Low Power Consumption: Consumes minimal power due to CMOS technology.
3. Wide Voltage Range: Operates within a voltage range of 2V to 6V.
4. Output Capability: Provides high current drive output capability.
5. Multiple Outputs: Features 8 active-high outputs.
6. Enable Inputs: Includes three enable inputs for expansion and cascading.
7. Noise Immunity: Offers high noise immunity with TTL compatibility.
8. Pin Compatibility: Compatible with LS-TTL devices.
9. Temperature Range: Functions effectively in a wide temperature range.
These features make the CD74HC238E suitable for use in digital circuits where decoding multiple lines or demultiplexing is necessary.
Pinout
- Pins 1-3: A0, A1, A2 - These are the address input pins. These pins receive the 3-bit binary code.
- Pin 4: G2A - Active-Low Enable Input.
- Pin 5: Y3 - Output.
- Pin 6: Y2 - Output.
- Pin 7: Y1 - Output.
- Pin 8: GND - Ground Pin.
- Pin 9: Y0 - Output.
- Pin 10: Y7 - Output.
- Pin 11: Y6 - Output.
- Pin 12: Y5 - Output.
- Pin 13: Y4 - Output.
- Pin 14: G2B - Active-Low Enable Input.
- Pin 15: G1 - Active-High Enable Input.
- Pin 16: VCC - Supply Voltage Pin.
The IC requires the enable pins to be set correctly to function; either G2A or G2B should be low, and G1 should be high for the decoder to be enabled.