器件名称:
74VCXH16373
功能描述:
LowVoltage 1.8/2.5/3.3 V 16Bit Transparent Latch
文件大小:
246.97KB 共11页
简 介:
74VCXH16373 LowVoltage 1.8/2.5/3.3 V 16Bit Transparent Latch With 3.6 VTolerant Inputs and Outputs (3State, NonInverting) The 74VCXH16373 is an advanced performance, noninverting 16bit transparent latch. It is designed for very highspeed, very lowpower operation in 1.8 V, 2.5 V or 3.3 V systems. The VCXH16373 is byte controlled, with each byte functioning identically, but independently. Each byte has separate Output Enable and Latch Enable inputs. These control pins can be tied together for full 16bit operation. When operating at 2.5 V (or 1.8 V) the part is designed to tolerate voltages it may encounter on either inputs or outputs when interfacing to 3.3 V busses. It is guaranteed to be overvoltage tolerant to 3.6 V. The 74VCXH16373 contains 16 Dtype latches with 3state 3.6 Vtolerant outputs. When the Latch Enable (LEn) inputs are HIGH, data on the Dn inputs enters the latches. In this condition, the latches are transparent, (a latch output will change state each time its D input changes). When LE is LOW, the latch stores the information that was present on the D inputs a setup time preceding the HIGHtoLOW transition of LE. The 3state outputs are controlled by the Output Enable (OEn) inputs. When OE is LOW, the outputs are enabled. When OE is HIGH, the standard outputs are in the high impedance state, but this does not interfere with new data entering into the latches. The data inputs include active bushold circuitry, eliminating the need for external pullup resistors to ho……
