World’s smallest real-time clock with embedded crystal saves space and optimizes battery life
The M41T62 is ideally suited to the needs of battery-powered designs. By operating at low voltages from 1.3 V to 4.4 V, it can be driven directly from a Li-ion battery and draws 350 nA. Many integrated microcontrollers have an on-chip RTC, but these often provide limited features and an external crystal is always required. Unlike designing with microcontrollers, or discrete solutions, this integrated solution takes care of the required and sometimes troublesome matching of the crystal and the RTC.
The M41T62 also simplifies product design. It produces a stable 32 kHz signal on start-up, which ensures reliable starting from many of today’s processors and subsystems such as Bluetooth modules. Additional features enhancing design and system performance include oscillator failure detection (OFD), which helps the system detect power faults. Actions such as power-down time stamping, low-battery detection can be done without the additional external components needed by a microcontroller RTC. The device is also UL certified and has a built-in reverse diode.
The M41T62 improves the performance of systems whose functions rely on data logging, time stamping, interval monitoring or synchronization. These can be found in SLR digital cameras, GPS receivers, portable multimedia players, card readers, portable medical monitors such as glucose meters.
Availability and Pricing
The M41T62 is entering into volume production now in the LCC8 leadless package, priced at approximately $1.50 in quantities of 1000 units.
The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network.
The technical storage or access is necessary for the legitimate purpose of storing preferences that are not requested by the subscriber or user.
The technical storage or access that is used exclusively for statistical purposes.The technical storage or access that is used exclusively for anonymous statistical purposes. Without a subpoena, voluntary compliance on the part of your Internet Service Provider, or additional records from a third party, information stored or retrieved for this purpose alone cannot usually be used to identify you.
The technical storage or access is required to create user profiles to send advertising, or to track the user on a website or across several websites for similar marketing purposes.