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Logic - Buffers, Drivers, Receivers, Transceivers

74LCX652MSA is a low-voltage octal bidirectional translator featuring non-inverting 3-State bus-interface (TTL) outputs. This device includes two sets of output enables, one for each side of the translator. The device contains a 4-bit-wide input port, two 4–bit-output ports, and two output enable inputs, onefor each output port. It allows the bidirectional transfer of data from two 2–bit-port systems that are operating at different voltages (VCCA and VCCB).

Application Field

The 74LCX652MSA has wide applications in mixed bus computer systems. It can be used in communications such as modem and balanced-line transmitter,network adapter, and other automotive applications. It is also used in cell phones, digital cellular phones, cordless telephones, wireless LAN applications, Bluetooth,switching power supplies, HDMI and the automotive applications.

Working Principle

The working principle of the 74LCX652MSA is based on two non-inverting buffers functioning in two directions (senders and receivers).The bus-interface or receiver side features two 4–bit-wide receiver/buffer stages. Data is received on four input pins named D0, D1, D2, and D3.The transmitter side of the device is also composed by two non-inverting buffers which transfers the data from the bus-interface to the bus.In other words, the device features two channels of transmitting and receiving data. The four transmitting pins D0, D1, D2, and D3 are connected to the bus via two control pins, Output Enable A (OE A) and Output Enable B (OE B).Output Enable A is used to enable the output drivers of the lower channel (D0 and D1) while Output Enable B enables the output drivers of the upper channel (D2 and D3). Finally, the 74LCX652MSA requires two supply voltages, VCCA and VCCB.

Conclusion

74LCX652MSA is a low-voltage dynamic octal bidirectional translator featuring non-inverting 3-State bus-interface (TTL) outputs. It also features two sets of output enables, one for each side of the translator.The 74LCX652MSA has applications in communications, cell phones, digital cellular phones, cordless telephones, wireless LAN applications, Bluetooth, switching power supplies, HDMI and the automotive applications. The device contains a 4-bit-wide input port, two 4–bit-output ports, and two output enable inputs, onefor each output port. It allows the bidirectional transfer of data from two 2–bit-port systems that are operating at different voltages (VCCA and VCCB).

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