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EM78P260N Datasheet(PDF) 10 Page - ELAN Microelectronics Corp |
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EM78P260N Datasheet(HTML) 10 Page - ELAN Microelectronics Corp |
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10 / 88 page  EM78P259N/260N 8-Bit Microprocessor with OTP ROM 4 • Product Specification (V1.0) 06.16.2005 (This specification is subject to change without further notice) 5 Pin Description 5.1 EM78P259NP/M Pin Description Symbol Pin No. Type Function VDD 14 – Power supply OSCI 16 I ■ XTAL type Crystal input terminal or external clock input pin ■ RC type: RC oscillator input pin OSCO 15 I/O ■ XTAL type: Output terminal for crystal oscillator or external clock input pin ■ RC type: Clock output with a duration one instruction cycle ■ External clock signal input P70 15 I/O ■ General-purpose I/O pin ■ Default value at power-on reset P60 ~ P67 6 ~ 13 I/O ■ General-purpose I/O pin ■ Open drain ■ Default value at power-on reset P50 ~ P55 1 ~ 3 16 ~ 18 I/O ■ General-purpose I/O pin ■ Pull-high/pull-down ■ Wake up from sleep mode when the status of the pin changes ■ Default value at power-on reset CIN–, CIN+ CO 12, 11 10 I O ■ “–“ → the input pin of Vin– of a comparator ■ “+” → the input pin of Vin+ of a comparator ■ Pin CO is the output of the comparator ■ Defined by IOC80 <4:3> IR OUT 13 O ■ IR mode output pin. Capable of driving and sinking current = 20mA when the output voltage drops to 0.7Vdd and rise to 0.3Vdd at Vdd = 5V. VREF 3 I ■ External reference voltage for ADC ■ Defined by ADCON (R9)<7> /INT 6 I ■ External interrupt pin triggered by falling or rising edge ■ Defined by CONT <7> TCC, TCCA, TCCB, TCCC 3, 7, 8, 9 I ■ External Counter input ■ TCC defined by CONT<5> ■ TCCA defined by IOC80 <1> ■ TCCB defined by IOC90 <5> ■ TCCC defined by IOC90 <1> ADC0 ~ ADC3 1, 2, 17, 18 I ■ Analog to Digital Converter ■ Defined by ADCON (R9)<1:0> /RESET 4 I ■ If it remains at logic low, the device will be reset ■ Wake-up from sleep mode when pin status changes ■ Voltage on /RESET/Vpp must not exceed Vdd during normal mode VSS 5 – Ground |
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