R8A66151SP
24-BIT I/O EXPANDER
REJ03F0258-0100 Rev. 1.00 Jan.08.2008
DESCRIPTION
R8A66151 is a semiconductor integrate...
R8A66151SP
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 communication. R8A66151 is the succession product of M66010.
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FEATURES
Bi-directional serial communication 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 85oC)
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 ...