具有三态输出的32位总线收发器 32-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS
This 32-bit quad-octal noninverting bus transceiver is designed for 1.65-V to 3.6-V VCC operation.
The SN74LVCHR32245A is designed for asynchronous communication between data buses. The control-function implementation minimizes external timing requirements.
This device can be used as four 8-bit transceivers, two 16-bit transceivers, or one 32-bit transceiver. It allows data transmission 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 device so that the buses are effectively isolated.
The data I/Os and control inputs are overvoltage tolerant. This feature allows the use of this device for down translation in a mixed-voltage environment.
The outputs, which are designed to sink up to 12 mA, include equivalent 26- resistors to reduce overshoot and undershoot.
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.
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. The bus-hold circuitry is part of the input circuit and is not disabled by OE\ or DIR.
电源电压DC 1.65V ~ 3.60V
电路数 4
通道数 32
位数 32
传送延迟时间 4.80 ns
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
电源电压Max 3.6 V
电源电压Min 1.65 V
安装方式 Surface Mount
引脚数 96
封装 BGA-96
长度 13.5 mm
宽度 5.5 mm
高度 0.95 mm
封装 BGA-96
工作温度 -40℃ ~ 85℃ TA
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