16位寄存收发器与3态输出 16-BIT REGISTERED TRANSCEIVER WITH 3-STATE OUTPUTS
This 16-bit registered transceiver is designed for 1.65-V to 3.6-V VCC operation.
The SN74LVCH16543A can be used as two 8-bit transceivers or one 16-bit transceiver. Separate latch-enable LEAB\ or LEBA\\\\ and output-enable OEAB\ or OEBA\\\\ inputs are provided for each register, to permit independent control in either direction of data flow.
The A-to-B enable CEAB\\\\ input must be low to enter data from A or to output data from B. If CEAB\ is low and LEAB is low, the A-to-B latches are transparent; a subsequent low-to-high transition of LEAB\ puts the A latches in the storage mode. With CEAB\ and OEAB\ both low, the 3-state B outputs are active and reflect the data present at the output of the A latches. Data flow from B to A is similar, but requires using the CEBA\, LEBA\, and OEBA\ inputs.
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.
Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of these devices as translators in a mixed 3.3-V/5-V system environment.
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.
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. The bus-hold circuitry is part of the input circuit and is not disabled by OE\ or DIR.
电源电压DC 2.00V ~ 3.60V
输出接口数 16
电路数 2
通道数 16
位数 16
电压波节 3.30 V, 2.70 V, 2.50 V, 1.80 V
输出电流驱动 -1.00 mA
工作温度Max 85 ℃
工作温度Min -40 ℃
电源电压 1.65V ~ 3.6V
安装方式 Surface Mount
引脚数 56
封装 TSSOP-56
长度 14 mm
宽度 6.1 mm
高度 1.15 mm
封装 TSSOP-56
工作温度 -40℃ ~ 85℃
产品生命周期 Active
包装方式 Tape & Reel TR
RoHS标准 RoHS Compliant
含铅标准 Lead Free
ECCN代码 EAR99
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
SN74LVCH16543ADGGR TI 德州仪器 | 当前型号 | 当前型号 |
74LVCH16543ADGGRG4 德州仪器 | 完全替代 | SN74LVCH16543ADGGR和74LVCH16543ADGGRG4的区别 |
74LVCH16543ADGGRE4 德州仪器 | 完全替代 | SN74LVCH16543ADGGR和74LVCH16543ADGGRE4的区别 |
74LVCH16543APAG 艾迪悌 | 功能相似 | SN74LVCH16543ADGGR和74LVCH16543APAG的区别 |