LC87F7NJ2A Datasheet, PDF (3/28 Pages) ON Semiconductor – 8-bit Microcontroller

LC87F7NJ2A
 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.
www.onsemi.com
3