R2A20150NP

New Product R2A20150NP/SA 8-bit I/O Expander for I2C BUS (Corresponds to Fast mode) R03DS0012EJ0100 Rev.1.00 2011.09.05 Description The R2A20150NP/SA is a CMOS 8-bit I/O expander, which has serial to parallel and parallel to serial data converting functions. It can communicate with a microcontroller via few wiring thanks to the adoption of the 2-wire I2C BUS. Maximum 8 ICs can be connected to a bus by using 3-chip select pins, so that it is possible to handle up to 64 bits data. Features  Simple 2-wire (SCL and SDA) communication with a microcontroller.  8-bit data conversion between serial and parallel by I2C BUS.  Corresponds to Fast mode (400kHz) of I2C BUS specification.  Possible to set input and output each bit separately.  By using three chip select pins (CS0,CS1,CS2), R2A20150 can connect with the same BUS line to maximum 8 pieces.  Very small package line-up QFN-16 and TSSOP-16. Application I/O port expansion of Microcomputer. Data conversion from serial to parallel and from parallel to serial in peripheral of Microcomputer. Block Diagram CS0 16 14 CS1 15 13 CS2 14 12 Number for TSSOP package Number for QFN package SCL 2 16 SDA 3 1 VDD 13 11 GND 8 6 Reset POWER ON RESET I2C BUS TRANSCIEVER SHIFT RESISTOR Output Data Input/Output 88 8 OUTPUT DATA LATCH I/O SETTING DATA LATCH INPUT DATA LATCH 88 I/O PORT 8 Input Data 15 1 SO 10 9 8 7 5 4 3 2 12 11 10 9 7 6 5 4 D7 D6 D5 D4 D3 D2 D1 D0 R03DS0012EJ0100 Rev.1.00 2011.09.05 Page 1 of 1...