Details

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BUY DS1553-70 https://www.utsource.net/itm/p/4402414.html
Nonvolatile , Year-2000-Compliant Timekeeping RAM

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	VCC	-	2.7	-	5.5	V
Standby Current	ISB	VCC = 3V	-	1	2	μA
Operating Current	IOC	VCC = 3V, Active	10	-	20	mA
Output Voltage High	VOH	VCC = 3V, IOH = -10μA	2.4	-	-	V
Output Voltage Low	VOL	VCC = 3V, IOL = 10mA	-	-	0.4	V
Input Leakage Current	II	VCC = 3V	-1	-	1	μA
Output Sink Current	IOL	VOL = 0.4V	10	-	20	mA
Output Source Current	IOH	VOH = 2.4V	-10	-	-20	μA
Operating Temperature Range	TOPR	-	-40	-	85	°C

Instructions for Use:

1. Power Supply:

   • Ensure the supply voltage (VCC) is within the range of 2.7V to 5.5V.
   • The device has a low standby current, making it suitable for battery-powered applications.

2. Current Considerations:

   • The operating current should be between 10mA and 20mA when active.
   • The output can sink up to 20mA and source up to 20μA.

3. Voltage Levels:

   • The output voltage high (VOH) should be at least 2.4V when sourcing -10μA.
   • The output voltage low (VOL) should not exceed 0.4V when sinking 10mA.

4. Input Protection:

   • The input leakage current should be within ±1μA to avoid unintended behavior.

5. Temperature Range:

   • The device is designed to operate within a temperature range of -40°C to 85°C.

6. Application Notes:

   • Ensure proper decoupling capacitors are used near the power pins to maintain stability.
   • Refer to the datasheet for detailed timing diagrams and specific application circuits.

(For reference only)