Ordering number : ENA0892B LC87F5M64A CMOS IC FROM 64K byte, RAM 2048 byte on-chip LC87F5M64A Minimum Bus Cycle Time 83.3ns (12MHz) V =2.8 to 5.5V DD 125ns (8MHz) V =2.5 to 5.5V DD 500ns (2MHz) V =2.2 to 5.5V DD Note: The bus cycle time here refers to the ROM read speed. Minimum Instruction Cycle Time (tCYC) 250ns (12MHz) V =2.8 to 5.5V DD 375ns (8MHz) V =2.5 to 5.5V DD 1.5s (2MHz) V =2.2 to 5.5V DD Ports Normal withstand voltage I/O ports Ports whose I/O direction can be designated in 1-bit units 46 (P1n, P2n, P3n, P70 to P73, P80 to P86, PCn, PWM2, PWM3, XT2) Ports whose I/O direction can be designated in 4-bit units 8 (P0n) Normal withstand voltage input port 1 (XT1) Dedicated oscillator ports 2 (CF1, CF2) Reset pins 1 (RES) Power pins 6 (V 1 to 3, V 1 to 3) SS DD 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 4: 8-bit timer with a 6-bit prescaler Timer 5: 8-bit timer with a 6-bit prescaler 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 programmable in 5 different time schemes. High-speed Clock Counter 1) Can count clocks with a maximum clock rate of 24MHz (at a main clock of 12MHz) 2) 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 = 4/3 tCYC) 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) No.A0892-2/22