SN74AXCH1T45
- Fully Configurable Dual-Rail Design Allows Each Port to Operate With a Power Supply Range from 0.65 V to 3.6 V
- Operating Temperature: –40°C to +125°C
- Glitch-Free Power Supply Sequencing
- Bus-hold on Data Inputs Eliminates the Need for External Pullup or Pulldown Resistors
- Maximum Quiescent Current (ICCA + ICCB) of 10 µA (85°C Maximum) and 16 µA (125°C Maximum)
- Up to 500-Mbps Support When Translating from 1.8 to 3.3 V
- VCC Isolation Feature
- If Either VCC Input is Below 100 mV, All I/Os Outputs are Disabled and Become High-Impedance
- Ioff Supports Partial-Power-Down Mode Operation
- Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
- ESD Protection Exceeds JESD 22
- 8000-V Human Body Model
- 1000-V Charged-Device Model
The SN74AXCH1T45 is a single-bit noninverting bus transceiver that uses two individually configurable power-supply rails. The device is operational with both VCCA and VCCB supplies as low as 0.65 V. The A port is designed to track VCCA, which accepts any supply voltage from 0.65 V to 3.6 V. The B port is designed to track VCCB, which also accepts any supply voltage from 0.65 V to 3.6 V. Additionally the SN74AXCH1T45 is compatible with a single-supply system.
The DIR pin determines the direction of signal propagation. With the DIR pin configured HIGH, translation is from Port A to Port B. With DIR configured LOW, translation is from Port B to Port A. The DIR pin is referenced to VCCA, meaning that its logic-high and logic-low thresholds track with VCCA.
Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended. If a supply is present for VCCA or VCCB, the bus-hold circuitry always remains active on the A or B inputs respectively, independent of the state of the direction control pin.
This device is fully specified for partial-power-down applications using the Ioff current. The Ioff protection circuitry ensures that no excessive current is drawn from or to an input, output, or combined I/O that is biased to a specific voltage while the device is powered down.
The VCC isolation feature ensures that if either VCCA or VCCB is less than 100 mV, both I/O ports enter a high-impedance state by disabling their outputs.
Glitch-free power supply sequencing allows either supply rail to be powered on or off in any order while providing robust power sequencing performance.
관심 가지실만한 유사 제품
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기술 자료
유형 | 직함 | 날짜 | ||
---|---|---|---|---|
* | Data sheet | SN74AXCH1T45 Single-Bit Dual-Supply Bus Transceiver with Configurable Voltage Translation, Tri-State Outputs, and Bus-Hold Inputs datasheet (Rev. C) | PDF | HTML | 2020/09/09 |
Application note | Schematic Checklist - A Guide to Designing With Fixed or Direction Control Translators | PDF | HTML | 2024/10/02 | |
Application note | Schematic Checklist - A Guide to Designing with Auto-Bidirectional Translators | PDF | HTML | 2024/07/12 | |
Application note | Understanding Transient Drive Strength vs. DC Drive Strength in Level-Shifters (Rev. A) | PDF | HTML | 2024/07/03 | |
Selection guide | Voltage Translation Buying Guide (Rev. A) | 2021/04/15 | ||
Application note | Low Voltage Translation for SPI, UART, RGMII, JTAG Interfaces (Rev. B) | PDF | HTML | 2021/03/29 | |
Application note | Glitch free power sequencing with AXC level translators (Rev. A) | 2018/09/20 | ||
Application note | An Overview of Bus-Hold Circuit and the Applications (Rev. B) | 2018/09/17 |
설계 및 개발
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5-8-LOGIC-EVM — 5핀~8핀 DCK, DCT, DCU, DRL 및 DBV 패키지용 일반 논리 평가 모듈
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 (...)
패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
---|---|---|
SOT-23 (DBV) | 6 | Ultra Librarian |
SOT-SC70 (DCK) | 6 | Ultra Librarian |
USON (DRY) | 6 | Ultra Librarian |
X2SON (DTQ) | 6 | 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