LC709004A

Ordering number : ENA0165A LC709004A CMOS IC I/O-Expander for Microcontroller http://onsemi.com Overview 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 4-/5-wire synchronous serial transmission and reception, and 16-bit parallel I/O Wide operating voltage range (2.0V to 6.0V) 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 Output current: 12mA max. (capable of driving a green LED directly) Data transmission and reception: Can control reception of input data and transmission of output data in parallel. Cascaded configuration: Ports can be expanded in units of 16 bits × n (n is the number of LSI chips). Packaging from: MFP24S (300mil): lead-free type (discontinued) MFP24SJ (300mil): lead-free type Semiconductor Components Industries, LLC, 2013 May, 2013 Ver....