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EM78P417NM Datasheet(PDF) 11 Page - ELAN Microelectronics Corp |
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EM78P417NM Datasheet(HTML) 11 Page - ELAN Microelectronics Corp |
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11 / 84 page  EM78P417N/418N/419N 8-Bit Microprocessor with OTP ROM Product Specification (V1.0) 06.23.2005 • 5 (This specification is subject to change without further notice) 5 Pin Description 5.1 EM78P417NP/M Pin Description Symbol Pin No. Type Function VDD 15 – Power supply OSCI 17 I ■ XTAL type Crystal input terminal or external clock input pin ■ RC type: RC oscillator input pin OSCO 16 O ■ XTAL type: Output terminal for crystal oscillator or external clock input pin ■ RC type: Clock output with a duration of one instruction cycle time. The prescaler is determined by the CONT register. ■ External clock signal input P50 ~ P56 10,12~14, 16 ~ 18 I/O ■ General-purpose I/O pin ■ Default value at power-on reset P60 ~ P67 1 ~ 3, 5 ~ 9 I/O ■ General-purpose I/O pin ■ Default value at power-on reset INT 10 I ■ External interrupt pin triggered by falling edge ADC0~ADC7 1 ~ 3, 5 ~ 9 I ■ Analog to Digital Converter ■ Defined by ADCON (R9)<0:2> PWM1, PWM2, PWM3 12, 13, 14 O ■ Pulse width modulation outputs ■ Defined by PWMCON (IOC80)<5:7> VREF 14 I ■ External reference voltage for ADC ■ Defined by ADCON (R9)<7> /RESET 11 I ■ General-purpose Input only ■ If it remains at logic low, the device will be reset ■ Wake-up from sleep mode when pin status changes ■ Voltage on /RESET must not exceed Vdd during normal mode TCC 18 I ■ Real time clock/counter with Schmitt trigger input pin. It must be tied to VDD or VSS if not in use. VSS 4 – Ground. |
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