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74HC138BQ
+БОМNexperia
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ПроизводительNexperia
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Мфр. Часть #74HC138BQ
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В наличии26430
365 Дни гарантии качества
7*24 часы обслуживания каранти
90-гарантия послепродажного дня
Гарантия подлинного продукта
Спецификации
| Атрибут | Ценность |
Обзор
Description
Key features include low power consumption, high noise immunity, and compatibility with TTL voltage levels. The device operates within a broad voltage range, typically from 2V to 6V, making it suitable for various applications. Common uses include memory address decoding and data routing in digital circuits.
The 74HC138BQ is known for its fast switching times, aiding efficient digital circuit design. Packaged in various formats like SOIC or TSSOP, it supports ease of implementation in both through-hole and surface-mount PCB designs.
Equivalent
Features
1. Input Configuration: Three address inputs (A, B, C) and three enable inputs (E1, E2, E3).
2. Output: Provides eight active LOW outputs (Y0 to Y7).
3. Enable Inputs: Two active LOW (E1, E2) and one active HIGH (E3) enable input for controlling output status.
4. High-Speed Operation: Supports fast signal processing with low propagation delay.
5. Low Power Consumption: Utilizes CMOS technology for efficient power usage.
6. Wide Supply Voltage Range: Operates between 2V to 6V, enhancing versatility in different applications.
7. High Noise Immunity: Offers robust performance against noise interference.
8. Standard Pin Configuration: Compatible with industry-standard pin configurations for ease of use in circuit designs.
The 74HC138BQ is commonly used in digital circuits for address decoding, data routing, and as a demultiplexer in various electronics applications.
Pinout
1. Pin Count: 16 pins.
2. Pin Functions:
- Inputs:
- A0, A1, A2 (Pins 1, 2, 3): Address inputs used to select one of the eight output lines.
- E1, E2 (Pins 4, 5): Active-low enable inputs.
- E3 (Pin 6): Active-high enable input.
- Outputs:
- Y0 to Y7 (Pins 15, 14, 13, 12, 11, 10, 9, 7): Active-low outputs which correspond to the binary value of the address inputs when the device is enabled.
- Power and Ground:
- VCC (Pin 16): Supply voltage.
- GND (Pin 8): Ground.
The 74HC138BQ is used for address decoding, memory selection, or data routing in digital circuits, where it decodes the binary input into one of the possible output lines.
Manufacturer
Application
1. Microprocessor Memory Decoding: Facilitates addressing in microprocessor systems by decoding binary addresses.
2. Data Demultiplexing: Distributes data from a single input line to multiple output lines.
3. Signal Routing: Used in systems where signal routing to various subsystems is necessary.
4. Control Systems: Employed in control applications where multiple operations are triggered by a single control signal.
5. Address Decoding: Assists in decoding addresses in larger memory systems, enabling access to specific memory locations.
6. Peripheral Device Selection: Enables selection of external devices in microcontroller applications.
These applications leverage the IC's ability to manage multiple outputs with minimal input lines.