DS1372：I²C, 32-Bit, Binary Counter Clock with 64-Bit ID

Ideal Clock for Portable Media Players

The DS1372 is a 32-bit binary up counter and 24-bit down counter with a unique 64-bit ID. The counters, ID, configuration, and status registers are accessed using an I²C serial interface. The DS1372 includes a SQW/active-low INT open-drain output that can output either a square wave at one of four predefined frequencies, or it can output an active-low signal when the 24-bit down counter reaches 0.

Key Features

Compliant with Microsoft Windows Media® DRM 10 for Portable Devices
32-Bit Binary Counter
Programmable Alarm
64-Bit Factory-Programmed ID
Interrupt Output
I²C Serial Interface
Two Selectable I²C Addresses
2.4V to 5.5V Operating Voltage Range
1.3V to 5.5V Timekeeping Operating Range
-40°C to +85°C Operating Temperature Range
8-Pin µSOP

DS1372: Typical Operating Circuit

Applications/Uses

Portable Audio and Video Players

DataSheet

title	Download file
DS1372 Data Sheet	DS1372.pdf

Parametrics

Part Number	Interface	V_SUPPLY (V)	Time Keeping Current (nA)	C_L (pF)	Memory Type	Time of Day Alarms	Functions	Package/Pins	Budgetary Price
Part Number	Interface	V_SUPPLY (V)	typ	C_L (pF)	Memory Type	Time of Day Alarms	Functions	Package/Pins	See Notes
DS1372	I2C	3 3.3 5	400	12.5	None	1	Elapsed Time Counter Watchdog Timekeeper	µMAX/8	$1.26 @1k