SN54LVTH245A-SP
- Support Mixed-Mode Signal Operation (5-V Input and Output Voltages With 3.3-V VCC)
- Typical VOLP (Output Ground Bounce)
<0.8 V at VCC = 3.3 V, TA = 25°C - Support Unregulated Battery Operation Down to 2.7 V
- Ioff and Power-Up 3-State Support Hot Insertion
- Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors
- Latch-Up Performance Exceeds 500 mA Per JESD 17
- ESD Protection Exceeds JESD 22
- 2000-V Human-Body Model (A114-A)
- 200-V Machine Model (A115-A)
These octal bus transceivers are designed specifically for low-voltage (3.3-V) VCC operation, but with the capability to provide a TTL interface to a 5-V system environment.
These devices are designed for asynchronous communication between data buses. They transmit data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE)\ input can be used to disable the devices so the buses are effectively isolated.
To ensure the high-impedance state during power up or power down, OE\ should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended.
These devices are fully specified for hot-insertion applications using Ioff and power-up 3-state. The Ioff circuitry disables the outputs, preventing damaging current backflow through the devices when they are powered down. The power-up 3-state circuitry places the outputs in the high-impedance state during power up and power down, which prevents driver conflict.
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | SN54LVTH245A, SN74LVTH245A datasheet (Rev. T) | 2003. 9. 11 | ||
| * | SMD | SN54LVTH245A-SP SMD 5962-95642 | 2016. 7. 8 | ||
| 선택 가이드 | TI Space Products (Rev. L) | 2026. 3. 27 | |||
| Application brief | DLA Approved Optimizations for QML Products (Rev. C) | PDF | HTML | 2025. 6. 17 | ||
| 애플리케이션 노트 | Heavy Ion Orbital Environment Single-Event Effects Estimations (Rev. B) | PDF | HTML | 2025. 6. 10 | ||
| 추가 자료 | TI Engineering Evaluation Units vs. MIL-PRF-38535 QML Class V Processing (Rev. B) | 2025. 2. 20 | |||
| 애플리케이션 노트 | Single-Event Effects Confidence Interval Calculations (Rev. A) | PDF | HTML | 2022. 10. 19 |
설계 및 개발
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| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| CFP (W) | 20 | Ultra Librarian |
| LCCC (FK) | 20 | Ultra Librarian |
| CDIP (J) | 20 | Ultra Librarian |