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.