News & Events
Xicor Expands Real Time Clock Family
--New products combine supervisory functions with clock/calendar~--Highly integrated solution is ideal for embedded systems
MILPITAS, Calif., Dec. 6, 1999 -- XICOR, Inc., today announced four new members of its real time clock product family, the X1202, X1240, X1241 and X1242. These products provide Y2K compliant clock/calendar functions in combination with a mixture of advanced system management building blocks. All products support an industry standard two-wire interface for direct control and communications from a microcontroller. The real time clock/calendar function operates down to 1.8 V, making this ideal for portable, battery driven applications such as cell phones, pagers, handheld instruments and notebook PCs.
The X1202 features a flexible software-polled alarm architecture that allows the designer to preset time or calendar driven alarms. Alarms can be set with resolutions of 1 second, 1 minute, 1 hour, 1 day, 1 week or 1 month, or can be programmed for specific days of the week.
In addition, the X1202 has a complete set of integrated supervisory functions, including watchdog timer, programmable low voltage detection circuits, and power-on-reset circuits. The watchdog timer supports several user-selectable timeout intervals, ranging from 250 milliseconds to 1.75 seconds. The X1202 also includes a battery switchover function that supports automatic switching from the main power supply to a battery backup in the event of power failure.
The X1240 integrates 16K of EEPROM memory on-chip with the basic clock/calendar functions, while the X1241 features both 16K of integrated EEPROM memory and the supervisory functions found on the X1202.
The X1242 has the same features as the X1202 with the addition of 16K of integrated EEPROM memory.
Xicor's Real Time Clock Family
| Part No. | Alarms | CPU Supervisor | EEPROM | Battery Switchover |
| X1202 | Software polled | Yes | No | Yes |
| X1203* | IRQ Output | No | No | No |
| X1240 | No | No | 16K | Yes |
| X1241 | No | Yes | 16K | No |
| X1242 | Software polled | Yes | 16K | Yes |
| X1243* | IRQ Output | No | 16K | No |
* Previously Announced
"Real time clock functions are standard building blocks required in laptop computers, cellular telephones, fax machines, utility meters and many other application requiring time and date stamping of random events," said Wayne Eng, director of marketing for system management products. "When combined with other advanced supervisory functions, our products offer a highly integrated one chip solution ideal for embedded system design."
Product Availability and Pricing
| Part No. | Samples Available | Production Quantities Available | Pricing Qtys. 100+ |
| X1202S8-2.7 | Now | Q1 | $2.56 |
| X1240S8 | Now | Q1 | $1.85 |
| X1241S8-2.7 | Now | Q1 | $2.84 |
| X1242S8-2.7 | Now | Q1 | $3.09 |
Reader Contact
Wayne Eng, director, digital products marketing, Xicor, Inc., 1511 Buckeye Drive, Milpitas, CA 95035. Telephone: (408) 546-3593. Web site: www.xicor.com.
Company Background
Xicor, Inc. designs, develops, manufactures and sells nonvolatile in-the-system programmable products which retain information even when the system is turned off or power is inadvertently lost. Xicor's product line includes digitally controlled potentiometers (XDCPs), system management ICs, and standard and secure memory ICs . Xicor product, corporate and financial information is readily accessible on the worldwide web at http://www.xicor.com.
