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SN74HC245NSR
+StücklisteIC TXRX NON-INVERT 6V 20SO
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HerstellerTexas Instruments
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Herstellerteil #SN74HC245NSR
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Paket SOIC-20
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Auf Lager2924
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Spezifikationen
| Attribut | Wert |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| Series | 74HC |
| ProductStatus | Active |
| LogicType | Transceiver, Non-Inverting |
| NumberofElements | 1 |
| NumberofBitsperElement | 8 |
| OutputType | 3-State |
| Current-OutputHighLow | 7.8mA, 7.8mA |
| Voltage-Supply | 2V ~ 6V |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| MountingType | Surface Mount |
| Package/Case | 20-SOIC (0.209, 5.30mm Width) |
Übersicht
Description
Key features include:
1. Bidirectional Data Transfer: Allows data flow in both directions between buses, controlled by a direction control pin.
2. Three-State Outputs: Outputs can be in one of three states—high, low, or high-impedance—enabling multiple devices to share the same data path without interference.
3. TTL-Compatible Inputs: Ensures compatibility with both TTL and CMOS logic levels.
4. Wide Voltage Range: Operates within a voltage range of 2V to 6V, providing flexibility for various applications.
5. High-Speed Performance: Offers fast switching speeds, making it suitable for high-speed data applications.
The SN74HC245NSR is commonly used in applications involving memory interfacing, microprocessor systems, and digital signal processing, where reliable and efficient data transfer is crucial.
Equivalent
1. CD74HCT245E - Texas Instruments
2. 74HC245D - Nexperia
3. 74HC245N - Nexperia
4. MC74HC245ADWG - ON Semiconductor
5. SN74HC245N - Texas Instruments
6. 74LVC245A - Nexperia
These chips generally serve as pin-compatible replacements, but always verify specifications and pin configurations to ensure compatibility with your specific application.
Features
1. Bidirectional Data Transfer: It allows bidirectional data flow with separate controls for each direction.
2. High-Speed Operation: The device supports high-speed data transfer with CMOS technology to provide fast response times.
3. 3-State Outputs: Outputs can be set to high, low, or high-impedance states, facilitating bus sharing.
4. Wide Operating Voltage Range: Operates effectively over a voltage range of 2V to 6V.
5. Low Power Consumption: It features low power dissipation due to its CMOS architecture.
6. Drive Capability: Can drive up to 15 LSTTL loads, making it suitable for interfacing with TTL devices.
7. Bus-Hold Function: Ensures a defined logic level on floating inputs.
8. Latch-Up Performance: Meets JEDEC standard JESD 78, Class II.
9. Temperature Range: Operates within a temperature range of -40°C to 85°C for industrial applications.
These features make the SN74HC245NSR ideal for memory address driving, clock driving, and other applications requiring high-speed data interfacing.
Pinout
Key functions and pin assignments include:
- Pins 1, 19: DIR (Direction) and OE (Output Enable), respectively, control the direction of data flow and output state.
- Pins 2-9: A1-A8, data bus A inputs/outputs.
- Pins 11-18: B1-B8, data bus B inputs/outputs.
- Pin 10: GND, ground connection.
- Pin 20: VCC, supply voltage.
The DIR pin determines the direction of data flow: when high, data flows from A to B; when low, data flows from B to A. The OE pin enables the outputs: driving it low enables the outputs, while driving it high disables them (3-state mode). This facilitates the separation of buses, preventing conflicts. The device operates with a wide voltage range and low power consumption, making it suitable for various digital applications.