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EM78P257AP Datasheet(PDF) 8 Page - ELAN Microelectronics Corp |
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EM78P257AP Datasheet(HTML) 8 Page - ELAN Microelectronics Corp |
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8 / 91 page  EM78P257 OTP ROM This specification is subject to change without prior notice. 07.27.2004 (V1.4) 8 * Wake up from sleep mode when the status of the pin changes. * Default value after a power on reset. IR OUT 14 O * IR mode output pin, capable of sinking 20mA /INT 7 I * External interrupt pin triggered by falling edge. CIN1-, CIN1+ CIN2-, CIN2+ CIN3-, CIN3+ CIN4-, CIN4+ CO1,CO2 CO3,CO4 18,19 3,2 8,9 13,12 20,1 10,11 I I I I O O * “-“ -> the input pin of Vin- of a comparator. * “+”-> the input pin of Vin+ of a comparator. * Pin CO1~4 are the outputs of the comparators. TCC TCC1,TCC2 TCC3,TCC4 3 8,13 20,19 I External Counter input. /RESET 4 I * If set as /RESET and remains at logic low, the device will be reset. * Voltage on /RESET/Vpp must not exceed Vdd during the normal mode. * Pull_high is on if defined as /RESET. VSS 5,6 - Ground. 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 P52/CO2 P53/CIN2+ P54/CIN2-/TCC P71//RESET Vss P60//INT P61/CIN3-/TCC1 P62/CIN3+ P63/CO3 P56/TCC5 P55/CIN1-/OSCI P70/OSCO VDD P67/IR OUT P65/CIN4+ P64/CO4 P66/CIN4-/TCC2 P50/CIN1+/TCC4 P51/CO1/TCC3 P57/TCC6 Fig. 2 Pin Assignment - EM78P257BP/BM Table 3 Pin Description-EM78P257BP/BM/BKM 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 I/O * XTAL type: output terminal for crystal oscillator or external clock input pin. |
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