LC872H08A/06A/04A

No.A1540-2/28

Minimum Instruction Cycle Time

• 250ns (12MHz at VDD=2.7V to 5.5V)

• 300ns (10MHz at VDD=2.2V to 5.5V)

• 750ns (4MHz at VDD=1.8V to 5.5V)

Ports

• Normal withstand voltage I/O ports

Ports I/O direction can be designated in 1-bit units

16 (Pin, P20, P21, P30, P31, P70 to P73)

Ports I/O direction can be designated in 4-bit units

8 (P0n)

• Dedicated oscillator ports/input ports

2 (CF1/XT1, CF2/XT2)

• Reset pin

1 (RES)

• Power pins

3 (VSS1, VSS2, VDD1)

Timers

• Timer 0: 16-bit timer/counter with a capture register.

Mode 0: 8-bit timer with an 8-bit programmable prescaler (with an 8-bit capture register)

× 2 channels

Mode 1: 8-bit timer with an 8-bit programmable prescaler (with an 8-bit capture register)

+ 8-bit counter (with an 8-bit capture register)

Mode 2: 16-bit timer with an 8-bit programmable prescaler (with a 16-bit capture register)

Mode 3: 16-bit counter (with a 16-bit capture register)

• Timer 1: 16-bit timer/counter that supports PWM/toggle outputs

Mode 0: 8-bit timer with an 8-bit prescaler (with toggle outputs) + 8-bit timer/

counter with an 8-bit prescaler (with toggle outputs)

Mode 1: 8-bit PWM with an 8-bit prescaler

× 2 channels

Mode 2: 16-bit timer/counter with an 8-bit prescaler (with toggle outputs)

(toggle outputs also possible from the lower-order 8 bits)

Mode 3: 16-bit timer with an 8-bit prescaler (with toggle outputs)

(The lower-order 8 bits can be used as PWM)

• Timer 6: 8-bit timer with a 6-bit prescaler (with toggle outputs)

• Timer 7: 8-bit timer with a 6-bit prescaler (with toggle outputs)

• Base timer

1) The clock is selectable from the subclock (32.768kHz crystal oscillation), system clock, and timer 0 prescaler

output.

2) Interrupts are programmable in 5 different time schemes

High-Speed Clock Counter

• Can count clocks with a maximum clock rate of 20MHz (at a main clock of 10MHz).

• Can generate output real time.

SIO

• SIO0: 8-bit Synchronous serial interface

1) LSB first/MSB first mode selectable

2) Built-in 8-bit baudrate generator (maximum transfer clock cycle=4/3tCYC)

• 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)

UART

• 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/8 bits

× 9 channels

• 12/8 bits AD converter resolution selectable