RV-8523 Datasheet, PDF (49/57 Pages) MICORO CRYSTAL SWITZERLAND – Real Time Clock

Micro Crystal
Real Time Clock / Calendar Module
RV-8523
V_DD = 1.2 V to 5.5 V; V_SS = 0 V; T_AMB = -40°C to +85°C; f_OSC = 32.768 kHz; unless otherwise specified
Inputs³⁾
LOW level input voltage
HIGH level input voltage
Input voltage
Input leakage current
Input capacitance⁴⁾
Outputs
VIL
VIH
VI
ILI
VI = VDD or VSS
Post ESD event
CI
-
-
30% VDD
V
70% VDD
-
-
V
-0.5
-
VDD +0.5
V
-
0
-
nA
-1
-
+1
µA
-
-
7
pF
Output voltage
On pins INT_1 , INT_2 ,
VO
CLKOUT, SDA (refers to
-0.5
-
5.5
V
ext. pull-up voltage)
LOW level output voltage
VOL
VSS
-
0.4
V
Output sink current;
LOW level output current⁵⁾
IOL
On pins INT_1 , INT_2 ,
1.5
CLKOUT
-
VOL = 0.4 V; VDD = 5.0 V
-
mA
On pin SDA
VOL = 0.4 V; VDD = 3.0 V
20
-
-
mA
Output leakage current
ILO
VO = VDD or VSS
Post ESD event
-
0
-
nA
-1
-
+1
µA
1) _{Timer source clock =} 1_{/3600 Hz, level of pins SCL and SDA is VDD or VSS.}
2) _{When the device is supplied via the VBACKUP pin instead of the VDD pin, the current values for IBACKUP will be as specified for IDD under the same}
conditions.
3) _{The I}2_{C bus is 5 V tolerant.}
4) _{Implicit by design.}
5) _{Tested on sample basis.}
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