Name: TR8804
Brand: TKD Science and Technology Co., Ltd.

The TKD TR8804 series is a low-power real-time clock module with an integrated 32.768 kHz crystal, providing accurate time and calendar functions for battery-powered systems. It suits smart meters, IoT nodes, portable instruments and consumer electronics.

Specification of TR8804

Technical Specifications	Symbol	Condition		Min.	Typ.	Max.	Unit
Frequency	f	Ta=+25℃, VDD=1.3V~5.5V		-	32.768	-	kHz
Operating Temperature	Ta	-		-40	25	125	℃
Frequency Stability	△f/f	Ta=-40~85℃, VDD=3.0V		-5	-	+5	ppm
Frequency Stability	△f/f	Ta=85~125℃, VDD=3.0V		-5	-	+5	ppm
Start-up Time	Tsta	Ta=+25℃, VDD=1.3V		-	-	1.0	s
Start-up Time	Tsta	Ta=-40~+125℃, VDD=1.3~5.5V		-	-	3.0	s
Supply Current	IDD1	SCL=SDA=/INT=VDD, FOE=Vss, FOUT Off 30s temperature compensation interval	VDD=3V	-	0.3	2.1	μA
Supply Current	IDD2		VDD=5V	-	0.42	2.9	μA