DS3234SN# Description
The DS3234SN# is a temperature-compensated crystal oscillator (TCXO), integrated crystal, and SRAM-equipped SPI bus C Real-time Clock. To monitor VCC, the DS3234 has a precise, temperature-compensated voltage reference and comparator circuit. When VCC falls below both VBAT and the power-fail voltage (VPF), the device asserts the RST output and also turns off read and write access to the part. For the purpose of producing a P reset, the RST pin is watched as a pushbutton input. When the main power to the device is stopped, the device shifts to the backup supply input and maintains precise timekeeping.
DS3234SN# Features
Register for aging trim
Programmable square-wave output
±3°C Accuracy digital temp sensor output
Underwriters Laboratories® (UL) recognized
Completely manages all timekeeping functions
Battery-backup input for continuous timekeeping
Simple serial interface connects to most microcontrollers
DS3234SN# Applications
