Document
Ordering number : EN8265A
LC709006A
CMOS IC
I/O-Expander for Microcontroller
http://onsemi.com
Overview
The LC709006A 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 24-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 24-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 un.