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SN74ACT245PW
+NomenclatureIC TXRX NON-INVERT 5.5V 20TSSOP
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FabricantTexas Instruments
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Pièce fabricant #SN74ACT245PW
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Fiche technique SN74ACT245PW DataSheet
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Package TSSOP-20
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En stock7256
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Spécifications
| Attribut | Valeur |
| Package / Case | Tube |
| Series | 74ACT |
| Part Status | Active |
| Logic Type | Transceiver, Non-Inverting |
| Number of Elements | 1 |
| Number of Bits per Element | 8 |
| Output Type | 3-State |
| Current - Output High Low | 24mA, 24mA |
| Voltage - Supply | 4.5V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
Présentation
Description
Key features include:
1. Bidirectional Data Transfer: Allows data to flow in both directions, controlled by a direction pin (DIR).
2. 3-State Outputs: The outputs can be in one of three states - high, low, or high-impedance - controlled by the output enable pin (OE), which allows connection to multiple bus lines without interference.
3. High-Speed Operation: Supports fast operation due to its advanced CMOS technology.
4. Wide Operating Voltage Range: Typically operates with a supply voltage of 4.5V to 5.5V.
5. Low Power Consumption: Consumes less power compared to older logic families.
The device is commonly used in digital circuits where bus interfacing, buffering, or signal integrity is required. It comes in various package types, with the PW suffix indicating a TSSOP package.
Equivalent
Features
1. High-Speed Operation: It supports high-speed data transmission, making it suitable for various performance-critical applications.
2. 3-State Outputs: The device can isolate bus lines to prevent signal interference, allowing multiple devices to connect to a common bus.
3. Wide Operating Voltage Range: Operates typically from 4.5V to 5.5V, providing versatility in various power supply environments.
4. Low Power Consumption: Designed to consume minimal power, contributing to energy-efficient system designs.
5. TTL-Compatible Inputs: Ensures compatibility with TTL logic levels for seamless integration into existing systems.
6. Latch-Up Performance: Provides robust latch-up performance exceeding 100 mA per JESD 78, Class II standards.
These features make the SN74ACT245PW an ideal choice for interfacing and buffering applications in digital systems.
Pinout
Key functions and pin configuration include:
1. VCC (Pin 20): Power supply input.
2. GND (Pin 10): Ground.
3. Direction (DIR, Pin 1): Determines the direction of data flow. When high, data flows from the A bus to the B bus; when low, data flows from the B bus to the A bus.
4. Output Enable (OE, Pin 19): Active-low signal that enables the outputs. When high, the outputs are in a high-impedance state.
5. A0-A7 (Pins 2-9): Data inputs/outputs for the A bus.
6. B0-B7 (Pins 11-18): Data inputs/outputs for the B bus.
The device is particularly useful in applications requiring bidirectional data flow between buses, offering high-speed operation and compatibility with TTL logic levels.