LC87F7NP6A

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2

Function Details

Ports

 Normal withstand voltage I/O ports

Ports whose I/O direction can be designated in 1 bit units: 29 (P0n, P1n, P70 to P73, P8n, XT2)

 Normal withstand voltage input port:

1 (XT1)

LCD ports

Segment output:

54 (S00 to S53)

Common output:

4 (COM0 to COM3)

Bias power sources for LCD driver:

3 (V1 to V3)

Other functions

Input/output ports:

54 (P3n, PAn, PBn, PCn, PDn, PEn, PFn)

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 a level which is greater than a preset value

2) 2-bit counter

Timers

Timer 0: 16-bit timer/counter with two capture registers.

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

 2 channels

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

(with two 8-bit capture registers)

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

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

Timer1: 16-bit counter timer 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 counter 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.)

Timer4: 8-bit timer with a 6-bit prescaler

Timer5: 8-bit timer with a 6-bit prescaler

Timer6: 8-bit timer with a 6-bit prescaler (with toggle output)

Timer7: 8-bit timer with a 6-bit prescaler (with toggle output)

Timer8: 16-bit timer

Mode 0: 8-bit timer with an 8-bit prescaler

 2 channels

Mode 1: 16-bit timer with an 8-bit prescaler

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.