LC709004AMJ-AH

6V 24Pin SOIC W T/R

The LC709004A is a peripheral IC dedicated for expanding the capability of the microcontroller MCU I/O ports. It interfaces with the microcontroller through synchronous serial communication. Communication with the extended I/O ports is accomplished through 16-bit parallel I/O. The extended port features include the capabilities to specify the I/O direction on a bit basis, to specify the output type CMOS or N-channel open drain, and to specify the I/O voltage level on a port basis according to the power level of the peripheral equipment. These features make allow the LC709004A to be used in a wide variety of applications.

Features

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4-/5-wire synchronous serial transmission and reception, and 16-bit parallel I/O

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Wide operating voltage range 2.0V to 6.0V

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Multifunction I/O ports :

I/O direction specification: Bit units

CMOS or Nch-OD output type specification: Bit units

Output voltage adjustment: Port 8 bits units

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Output current: 12mA max. capable of driving a green LED directly

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Data transmission and reception :

Can control reception of input data and transmission of output data in parallel.

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Cascaded configuration :

Ports can be expanded in units of 16 bits x n n is the number of LSI chips.