LC877696B/80B/64B/48B

No.A0965-2/25

Minimum Instruction Cycle Time (tCYC)

• 250ns (12MHz)

VDD=3.0 to 5.5V (target value)

• 375ns (8MHz)

VDD=2.5 to 5.5V (target value)

• 750ns (4MHz)

VDD=2.2 to 5.5V (target value)

• 91.5μs(32.768kHz)

VDD=1.7 to 5.5V (target value)

Ports

• Normal withstand voltage I/O ports

Ports whose I/O direction can be designated in 1-bit units 23 (P1n, P30 to P31, P70 to P73, P8n, XT2)

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

8 (P0n)

• Normal withstand voltage input port

1 (XT1)

• LCD ports

Segment output

32 (S00 to S31)

Common output

4 (COM0 to COM3)

Bias terminals for LCD driver

3 (V1 to V3)

Other functions

Input/output ports

32 (PAn, PBn, PCn, PDn,)

Input ports

7 (PLn)

• Dedicated oscillator ports

2 (CF1, CF2)

• Reset pins

1 (RES)

• Power pins

6 (VSS1 to VSS3, VDD1 to VDD3)

LCD Controller

1) Seven display modes are available (static, 1/2, 1/3, 1/4 duty

× 1/2, 1/3 bias)

2) Segment output and common output can be switched to general-purpose input/output ports

Small Signal Detection (MIC signals etc)

1) Counts pulses with the level which is greater than a preset value

2) 2-bit counter

Timers

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

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

× 2 channels

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

+ 8-bit counter (with 8-bit capture registers)

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

Mode 3: 16-bit counter (with 16-bit capture registers)

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

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

+ 8-bit timer 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 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 output)

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

• 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

• Day and time counter

1) Used with a base timer, the day and time counter can be used as a 65000 day + minute + second counter.