R8A66151SP Datasheet | Renesas

24-BIT I/O EXPANDER REJ03F0258-0100 Rev. 1.00 Jan.08.2008 DESCRIPTION R8A66151 is a semiconductor integrated circuit which has 24-bit shift register function to execute serial in parallel out conversion and parallel in - serial out conversion. Built in two shift registers for serial in - parallel out and parallel in - serial out are constructed independently, This IC is able to read serial input data into a shift register while output the serial data converting from the parallel data input. Also, parallel data I/O pins can be set to input mode or output mode by a bit. R8A66151 is useful in a wide range of applications, such as MCU (micro controller unit) I/O port extension and serial bus system data munication. R8A66151 is the succession product of M66010. .. Features Bi-directional serial munication with MCU Serial data can be input during parallel to serial data conversion Parallel data I/O pins can be set input mode or output mode by a bit Schmitt input (DI, CLK, /S, /CS) N-ch open drain output (DO, D1~D24) Parallel data I/O pins (D1~D24) Wide supply voltage range (Vcc=2.0 to 6.0V) Wide operating temperature range (Ta=-40 to 85o C) APPLICATION Serial - parallel or parallel - serial data conversion for MCU peripheral. Serial bus control by MCU. PIN CONFIGURATION (TOP VIEW) SERIAL DATA OUTPUT SERIAL DATA INPUT DO DI 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13 D14 D15 D16 PARALLEL DATA I/O CLOCK INPUT CLK CHIP SELECT INPUT CS Vcc SET INPUT S GND D24 D23 D22 D21 D20 D19 D18 D17 GND REJ03F0258-0100 Rev.1.00 Jan.08.2008 Page 1 of 7 BLOCK DIAGRAM Vcc Vcc D24 D23 D22 CLK 3 S CS 6 4 DO D3 D2 D1 DO CLK, S, CS, DI...