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비교 대상 장치보다 업그레이드된 기능을 지원하는 드롭인 대체품
SN74AVC4T774
- Each channel has an independent DIR control input
- Control inputs VIH/VIL levels are referenced to VCCA voltage
- Fully configurable dual-rail design allows each port to operate over the full 1.1V to 3.6V power-supply range
- I/Os are 4.6V tolerant
- Ioff Supports partial power-down-mode operation
- Typical data rates
- 380Mbps (1.8V to 3.3V translation)
- 200Mbps (<1.8V to 3.3V translation)
- 200Mbps (translate to 2.5V or 1.8V)
- 150Mbps (translate to 1.5V)
- 100Mbps (translate to 1.2V)
- Latch-up performance exceeds 100 mA Per JESD 78, class II
- ESD Protection exceeds the following levels (tested per JESD 22)
- ±8000V Human-body model (A114-A)
- 250V Machine model (A115-A)
- ±1500V Charged-device model (C101)
This 4-bit noninverting bus transceiver uses two separate configurable power-supply rails. The A port is designed to track VCCA. VCCA accepts any supply voltage from 1.1 V to 3.6V. The B port is designed to track VCCB. VCCB accepts any supply voltage from 1.1 to 3.6V. The SN74AVC4T774 is optimized to operate with VCCA/VCCB set at 1.4V to 3.6V. It is operational with VCCA/VCCB as low as 1.2V. This allows for universal low-voltage bi-directional translation between any of the 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V voltage nodes.
The SN74AVC4T774 is designed for asynchronous communication between data buses. The logic levels of the direction-control (DIR) input and the output-enable ( OE) input activate either the B-port outputs or the A-port outputs or place both output ports in the high-impedance mode. The device transmits data from the A bus to the B bus when the B outputs are activated, and from the B bus to the A bus when the A outputs are activated. The input circuitry on both A and B ports is always active and must have a logic HIGH or LOW level applied to prevent excess ICC and ICCZ.
The SN74AVC4T774 is designed so that the control pins (DIR1, DIR2, DIR3, DIR4, and OE) are supplied by VCCA. This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. The VCC isolation feature ensures that if either VCC input is at GND, then both ports are in the high-impedance state.
For a high-impedance state during power-up or power-down, OE should be tied to VCCA through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. Since this device has CMOS inputs, it is very important to not allow them to float. If the inputs are not driven to either a high VCC state, or a low-GND state, an undesirable larger than expected ICC current may result. Since the input voltage settlement is governed by many factors (for example, capacitance, board-layout, package inductance, surrounding conditions, and so forth), ensuring that they these inputs are kept out of erroneous switching states and tying them to either a high or a low level minimizes the leakage-current.
기술 자료
설계 및 개발
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14-24-LOGIC-EVM — 14핀~24핀 D, DB, DGV, DW, DYY, NS 및 PW 패키지용 로직 제품 일반 평가 모듈
14-24-LOGIC-EVM 평가 모듈(EVM)은 14핀~24핀 D, DW, DB, NS, PW, DYY 또는 DGV 패키지에 있는 모든 로직 장치를 지원하도록 설계되었습니다.
14-24-NL-LOGIC-EVM — 14핀~24핀 비 리드 패키지용 로직 제품 일반 평가 모듈
14-24-NL-LOGIC-EVM은 14핀~24핀 BQA, BQB, RGY, RSV, RJW 또는 RHL 패키지가 있는 로직 또는 변환 디바이스를 지원하도록 설계된 유연한 평가 모듈(EVM)입니다.
AVCLVCDIRCNTRL-EVM — AVC 및 LVC를 지원하는 방향 제어 양방향 변환 디바이스를 위한 일반 EVM
The generic EVM is designed to support one, two, four and eight channel LVC and AVC direction-controlled translation devices. It also supports the bus hold and automotive -Q1 devices in the same number of channels. The AVC are low voltage translation devices with lower drive strength of 12mA. LVC (...)
많은 TI 레퍼런스 설계에는 SN74AVC4T774이(가) 포함됩니다.
레퍼런스 디자인 선택 툴을 사용하여 애플리케이션 및 매개 변수에 가장 적합한 설계를 검토하고 식별할 수 있습니다.
패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
---|---|---|
SOT-23-THN (DYY) | 16 | Ultra Librarian |
TSSOP (PW) | 16 | Ultra Librarian |
UQFN (RSV) | 16 | Ultra Librarian |
VQFN (RGY) | 16 | Ultra Librarian |
WQFN (BQB) | 16 | Ultra Librarian |
주문 및 품질
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
- 팹 위치
- 조립 위치