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LC87F7NC8AUEJ-2H Scheda tecnica(PDF) 2 Page - ON Semiconductor |
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LC87F7NC8AUEJ-2H Scheda tecnica(HTML) 2 Page - ON Semiconductor |
2 / 28 page LC87F7NC8A www.onsemi.com 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. |
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