RX-8035LC

ROHS STATUS: Compliant

PN: X1B000182000312

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Parameter Table

Sample

Block Diagram

Overview

The event detection and Timestamp function
- Dual event detection terminals.
- Selectable de-bounce period 35ms or 2s.
- Available event detection interrupt output.
Power switching functions.
- An external diode is unnecessary to have a reverse current prevention switch built-in in
  the VBAT side to connect a primary cell to.
- When VDD is less than 2.4V, an internal source is switched to VBAT, and /RES is Low level.
  When VDD voltage rises to higher than 2.52V, an internal source is switched to VDD, and /RES is released with 105ms delay.
- Note: When the supply from VBAT, SCL and SDA are disabled.
Alarm, Periodic interrupt, 32.768kHz clock output.
- Available monthly-alarm and weekly-alarm.
- Interrupt period are selectable from 2Hz to Monthly.
- CLKOUT outputs 32.768kHz clock powered by VDD.

Specifications *Refer to application manual for details

Recommend Operating Conditions

Item	Symbol	Conditions	Min.	Typ.	Max.	Unit
Operating voltage	V_ACCESS	VDD	2.4	3.0	5.5	V
Time keeping voltage	V_CLK	VBAT	1.0	3.0	5.5	V
Operating temperature	T_OPR	-	-40	+25	+85	°C
Storage temperature	T_STG	-	-55	-	+125	°C

Frequency characteristics

Item	Symbol	Conditions	Rating	Unit
Frequency tolerance	Δ f/f	Ta=+25°C V_BAT=3.0V	B: 5±23 ^1) AA: 5±5 ^2) AC: 0±5 ^*2)	×10^-6
Oscillation start-up time	t_STA	Ta=+25°C V_DD=3.0V	1 Max.	s
Frequency/voltage characteristics	f/V	Ta = +25°C V_DD=2.4V to 5.5V	±1 Max.	×10^-6

*1 Equivalent to ±1 minute of monthly deviation (excluding offset.)
*2 Equivalent to ±13 seconds of monthly deviation (excluding offset.)

Current consumption characteristics

Ta=-40°C to +85°C

Item	Symbol	Conditions	Min.	Typ.	Max.	Unit
Current Consumption	l_BAT	RX-8035SA VBAT=3.0V, VDD=0.0V SCL=SDA=GND	-	350	1200	nA
	l_BAT	RX-8035LC VBAT=3.0V, VDD=0.0V SCL=SDA=GND	-	400	1200	nA
	I_DD	VDD=3.0V SCL=SDA=GND CLKOUT=open	-	1.40	2.50	µA

Power supply detection voltage

Ta=-40°C to +85°C

Item	Symbol	Condition	Min.	Typ.	Max.	Unit
VBAT detect voltage	VLOW	-	1.10	1.25	1.40	V
Power switching voltage (VDD to VBAT)	V_D2B	+25°C	2.328	2.40	2.472	V

Pin Function

Signal Name	Input/Output	Functions
SCL	Input	I2C serial clock.
SDA	In/Out	I2C data in/out.
VDD	-	Main power supply.
VBAT	-	Power supply for backup.
Vout	Output	Switched power out.(maximum output current 20mA)
/ RES	Output	VDD voltage state.
GND	-	Ground
EVIN1	Input	Event detection input 1
EVIN2	Input	Event detection input 2
/ INTA	Output	Interrupt out A.
/ INTB	Output	Interrupt out B.
CLKOUT	Output	32.768kHz output. (CMOS. Can not inhibit.)
N.C.	-	Do not connect.

Terminal connection / External dimensions

(Unit: mm)

Stop using the glue
Any glue must never use it after soldering LC-package to a circuit board.
This product has glass on the back side of a package.
When glue invasions between circuit board side and glass side, then glass cracks by thermal expansion of glue.
In this case a crystal oscillation stops.Consider glue abolition or glue do not touch to LC-package

Footprint (Recommended)

(Unit: mm)

To maintain stable operation, provide a 0.1uF by-pass capacitor
at a location as near as possible to the power source terminal of the crystal product (between Vcc - GND).

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Dimensions

Voltage

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