DS138608-120

The DS138608-120 is designed as a nonvolatile static RAM with a full-function real time clock (RTC), alarm, watchdog timer, and interval timer which are all accessible in a byte-wide format.

DS138608-120 has eight features. (1)8 or 32 kbytes of user NV RAM. (2)Integrated NV SRAM, real time clock, crystal, power-fail control circuit and lithium energy source. (3)Totally nonvolatile with over 10 years of operation in the absence of power. (4)Watchdog timer restarts an out-of-control processor. (5)Alarm function schedules real-time related activities such as system wakeup. (6)Programmable interrupts and square wave output. (7)All registers are individually addressable via the address and data bus. (8)Interrupt signals are active in power-down mode. Those are all the main features.

Some absolute maximum ratings of DS138608-120 have been concluded as follow. (1)Its voltage on any pin relative to ground would be from -0.3V to +7.0V. (2)Its operating temperature range would be from 0°C to 70°C. (3)Its storage temperature range would be from -40°C to +70°C. (4)Its soldering temperature would be 260°C for 10 seconds. It should be noted that stresses above those listed in absolute maximum ratings may cause permanent damage to device.

Also some DC electrical characteristics of DS138608-120 are concluded as follow. (1)Its input leakage current would be min -1.0uA and max +1.0uA. (2)Its output leakage current would be min -1.0uA and max +1.0uA. (3)Its I/O leakage current would be min -1.0uA and max +1.0uA. (4)Its output current at 2.4V would be min -1.0mA. (5)Its output current at 0.4V would be max 2.1mA. (6)Its standby current CE=2.2V would be typ 3.0mA and max 7.0mA. (7)Its standby current CE=Vcc-0.5 would be typ 2.0mA and max 4.0mA. (8)Its active current would be max 85mA. (9)Its write protection voltage would be min 4.0V and typ 4.25V and max 4.5V. And so on. If you have any question or suggestion or want to know more information please contact us for details. Thank you!