S-3511A

The S-3511A is designed as a CMOS real-time clock IC which is designed to transfer or set each data of a clock and calender as requested by a CPU. S-3511A provides connection with a CPU via three wires and has an interrupt/alarm feature, allowing the alleviation of software treatment on the side of a host.

S-3511A has twelve features. (1)Low power consumption. (2)Wide area of operating voltage 1.7V to 5.5V. (3)BCD input/output of years, month, day of a week, hour, minute and second. (4)CPU interface via three wires. (5)Auto calender till the year of 2099 (automatic leap year arithmetic feature included). (6)Built-in power voltage detecting circuit. (7)Built-in constant voltage circuit. (8)Built-in flag generating circuit on power on/off. (9)Built-in alarm interrupter. (10)Steady-state interrupt frequency/duty setting feature. (11)Built-in 32KHz crystal oscillating circuit (internal Cd, external Cg). (12)8-pin SSOP package (terminal pitch: 0.65mm). Those are all the main features.

Some absolute maximum ratings of S-3511A have been concluded into several points as follow. (1)Its power voltage would be from -0.3V to 6.5V. (2)Its input voltage would be from -0.3V to 6.5V. (3)Its output voltage would be from -0.3V to 6.5V. (4)Its operating temperature range would be from -40°C to 85°C. (5)Its retention temperature range would be from -55°C to 125°C. It should be noted that stresses above those listed in absolute maximum ratings may cause permanent damage to device.

Also some electrical characteristics of S-3511A are concluded as follow. (1)Its range of operating voltage would be min 1.7V and typ 3.0V and max 5.5V. (2)Its drain current 1 would be typ 0.7V and max 1.5V. (3)Its drain current 2 would be typ 5.5uA and max 10uA. (4)Its input leak current 1 would be min -0.5uA and max 0.5uA. (5)Its input leak current 2 would be min -0.5uA and max 0.5uA. And so on. If you have any question or suggestion or want to know more information about S-3511A please contact us for details. Thank you!