Rainbow-electronics DS1216 Manual de usuario Pagina 1

1 of 13 111901FEATURES§ Keeps track of hundredths of seconds,seconds, minutes, hours, days, date of themonth, months, and years§ Converts standard 2

DS121610 of 13TIMING DIAGRAM: READ CYCLE TO SMARTWATCHTIMING DIAGRAM: WRITE CYCLE TO SMARTWATCH TIMING DIAGRAM: RESET FOR SMARTWATCH

DS121611 of 13TIMING DIAGRAM: POWER-DOWNTIMING DIAGRAM: POWER-UPWarning: Under no circumstances should negative undershoots of any amplitude be allowe

DS121612 of 13NOTES:1) Pin locations are designated “U” when a parameter definition refers to the socket receptacle and “L”when a parameter definitio

DS121613 of 13DS1216 28 SMARTWATCHPKGDIM MIN MAX MIN MAXA IN.1.390 1.420 1.580 1.620MM35.31 36.07 40.13 41.14B IN.0.690 0.720 0.690 0.720MM17.53 18.29

DS12162 of 13TYPICAL OPERATING CIRCUITDESCRIPTIONThe DS1216 SmartWatch RAM and SmartWatch ROM Sockets are 600mil-wide DIP sockets with abuilt-in CMOS

DS12163 of 13After the pattern match, the next 64 reads and/or writes are directed to the clock, and the RAM isdisabled. Once the pattern is establish

DS12164 of 13SMARTWATCH COMPARISON REGISTER DEFINITION Figure 1Note: The pattern recognition in Hex is C5, 3A, 5C, C5, 3A, A3, 5C. The odds of this p

DS12165 of 13SMARTWATCH REGISTER INFORMATIONThe SmartWatch information is contained in eight registers of 8 bits, each of which is sequentiallyaccesse

DS12166 of 13RESET AND MEMORY DENSITY OPTIONS Figure 2The letter suffix of the SmartWatch is located on the PCB as shown above.The RESET pin on the

DS12167 of 13SMARTWATCH REGISTER DEFINITION Figure 30 0 10 DATE DATE0 0 0 10 MONTH MONTH0 10 MIN MINUTES0.1 SEC 0.01 SEC0 10 SEC SECONDS12/24

DS12168 of 13ABSOLUTE MAXIMUM RATINGS*Voltage Range on any Pin Relative to Ground -0.3V to +7.0V for 5VOperating Temperature Range 0°C to +70°CStora

DS12169 of 13CAPACITANCE (TA = +25°C)PARAMETER SYMBOL MIN TYP MAX UN