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MAXIM INTEGRATED PRODUCTS  DS3234S#.  RTC, TCXO, CRYSTAL, 3.3V, 20SOIC

MAXIM INTEGRATED PRODUCTS DS3234S#.
Technical Data Sheet (276.34KB) EN See all Technical Docs

Image is for illustrative purposes only. Please refer to product description.

Product Overview

The DS3234S# is an extremely accurate SPI bus Real-time Clock (RTC) with an integrated temperature-compensated crystal oscillator (TCXO) and crystal. The DS3234 incorporates a precision, temperature-compensated voltage reference and comparator circuit to monitor VCC. When VCC drops below the power-fail voltage (VPF), the device asserts the RST output and also disables read and write access to the part when VCC drops below both VPF and VBAT. The RST pin is monitored as a pushbutton input for generating a µP reset. The device switches to the backup supply input and maintains accurate timekeeping when main power to the device is interrupted. The integration of the crystal resonator enhances the long-term accuracy of the device as well as reduces the piece-part count in a manufacturing line. The DS3234 also integrates 256 bytes of battery-backed SRAM. In the event of main power loss, the contents of the memory are maintained by the power source connected to the VBAT pin.
  • Battery-backup input for continuous timekeeping
  • Underwriters Laboratories® (UL) recognized
Negative undershoots below -0.3V while the part is in battery-backed mode may cause loss of data.

Product Information

Date Format:
DD:MM:YYYY
Clock Format:
HH:MM:SS
Clock IC Type:
RTC
Supply Voltage Min:
2V
Supply Voltage Max:
5.5V
Clock IC Case Style:
SOIC
No. of Pins:
20Pins
IC Interface Type:
SPI
Operating Temperature Min:
0°C
Operating Temperature Max:
70°C
Packaging:
Each
Product Range:
-
Automotive Qualification Standard:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (15-Jun-2015)

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Applications

  • Computers & Computer Peripherals;
  • Test & Measurement;
  • Sensing & Instrumentation

Legislation and Environmental

Moisture Sensitivity Level:
MSL 1 - Unlimited
Country of Origin:
United States

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Y-Ex
Tariff No:
85423990
Weight (kg):
.0001

Alternatives

RTC, TCXO, +/-2PPM, SPI, 20SOIC

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