Maxim Integrated DS1672U-33+, Real Time Clock Serial-I2C, 8-Pin μSOP

View all Real Time Clocks
Discontinued
Packaging Options:
RS Stock No.:
190-5159
Mfr. Part No.:
DS1672U-33+
Brand:
Maxim Integrated
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Brand

Maxim Integrated

Functions

Binary Counter, Real Time Clock

Bus Type

Serial-I2C

Mounting Type

Surface Mount

Package Type

μSOP

Pin Count

8

Dimensions

3.1 x 0.65 x 0.95mm

Length

3.1mm

Width

0.65mm

Height

0.95mm

Maximum Operating Supply Voltage

5.5 V

Minimum Operating Temperature

-40 °C

Maximum Operating Temperature

+85 °C

Minimum Operating Supply Voltage

2.97 V

The DS1672 low-voltage serial timekeeping chip incorporates a 32-bit counter and power-monitoring functions. The 32-bit counter is designed to count seconds and can be used to derive time-of-day, week, month, and year by using a software algorithm. A precision, temperature-compensated reference and comparator circuit monitors the status of VCC. When an out-of-tolerance condition occurs, an internal power-fail signal is generated that forces the reset to the active state. When VCC returns to an in-tolerance condition, the reset signal is kept in the active state for 250ms to allow the power supply and processor to stabilize.

32-Bit Counter
I²C Serial Interface
Automatic Power-Fail Detect and Switch Circuitry
Power-Fail Reset Output
Low-Voltage Oscillator Operation (1.3V min)
Trickle-Charge Capability