IQD launch new tight stability ‘Real Time Clock’ at Embedded World 2012
Posted: 28th February 2012
IQD have launched a newly designed tight stability Real Time Clock (RTC) which incorporates a 32.768kHz crystal with a Digital Temperature Compensated Crystal Oscillator (DTCXO). This Surface Mount RTC is housed in a plastic package with a FR4 base measuring just 10.0 x 7.4mm.
The new IQRC-100 series has an I2C-Bus* (400kHz) interface with a CMOS output allowing the RTC to operate with a very low power consumption which at 3V is typically 0.8µA. Incorporating the DTCXO within the RTC allows for a very tight frequency stability of ±3.4ppm over a wide operating temperature of –40 to +85 degrees C to be achieved. This tight stability equates to a maximum of 9 seconds a month deviation over the full operating temperature range. Other frequency stabilities are available including ±5ppm over –40 to +85 degrees C and ±5ppm at room temperature, 25 degrees C. For applications where a tight stability is not required a frequency stability of ±25ppm over –40 to +85 is available. The IQRC-100 series has an interface voltage range of between 1.8 to 5.5V and a wide timekeeper voltage range of between 1.6 to 5.5V.
The functions within the IQRC-100 series include a full calendar, alarm, timer and leap year adjustment.
The IQRC-100 series is ideal for a wide range of applications including: Blood Pressure Monitors, Data loggers, Industrial Control, POS Systems, Security Systems, Telemetric Systems & Utility Meters. Further details will be available at IQD’s stand 152 in hall 1 at Embedded Show 2012.
‘*The I2C-Bus is a trademark of NXP Semiconductors’