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LC87F7NC8A Datasheet(PDF) 3 Page - ON Semiconductor |
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LC87F7NC8A Datasheet(HTML) 3 Page - ON Semiconductor |
3 / 28 page LC87F7NC8A www.onsemi.com 3 High-speed Clock Counter 1) Can count clocks with a maximum clock rate of 20MHz (at a main clock of 10MHz). 2) Can generate output real-time. Serial Interfaces SIO0: 8-bit synchronous serial interface 1) LSB first/MSB first made selectable 2) Built-in 8-bit baudrate generator (maximum transfer clock cycle 4/3tCYC) 3) Automatic continuous data transmission (1 to 256 bits specifiable in 1-bit units, suspension and resumption of data transmission possible in 1-byte units) SIO1: 8-bit asynchronous/synchronous serial interface Mode 0: Synchronous 8-bit serial I/O (2- or 3-wire configuration, 2 to 512 tCYC transfer clocks) Mode 1: Asynchronous serial I/O (half-duplex, 8 data bits, 1 stop bit, 8 to 2048 tCYC baudrates) Mode 2: Bus mode 1 (start bit, 8 data bits, 2 to 512 tCYC transfer clocks) Mode 3: Bus mode 2 (start detect, 8 data bits, stop detect) UART1 Full duplex 7/8/9 bit data bits selectable 1 stop bit (2 bits in continuous data transmission) Built-in baudrate generator UART2 Full duplex 7/8/9 bit data bits selectable 1 stop bit (2 bits in continuous data transmission) Built-in baudrate generator AD Converter : 12 bits 15 channels PWM : Multi frequency 12-bit PWM 2 channels Infrared Remote Control Receiver Circuit1 1) Noise reduction function (Time constant of noise reduction filter: approx. 120 s, when selecting a 32.768kHz crystal oscillator as a reference clock) 2) Supporting reception formats with a guide-pulse of half-clock/clock/none. 3) Determines a end of reception by detecting a no-signal periods (No carrier). (Supports same reception format with a different bit length.) 4) X’tal HOLD mode cancellation function Infrared Remote Control Receiver Circuit2 1) Noise reduction function (Time constant of noise reduction filter: approx. 120μs, when selecting a 32.768kHz crystal oscillator as a reference clock.) 2) Supporting reception formats with a guide-pulse of half-clock/clock/none. 3) Determines a end of reception by detecting a no-signal periods (No carrier). (Supports same reception format with a different bit length.) 4) X’tal HOLD mode cancellation function Watchdog Timer 1) External RC watchdog timer 2) Interrupt and reset signals selectable Clock Output Function 1) Can output selected oscillation clock 1/1, 1/2, 1/4, 1/8, 1/16, 1/32, or 1/64 as a system clock. 2) Can output the source oscillation clock for the sub clock. |
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