DS-72-34 Datasheet, PDF (4/18 Pages) Cymbet Corporation – I2C Real-Time Clock/Calendar with Integrated Backup Power

Preliminary
CBC34803 EnerChip™ RTC
Absolute Maximum Ratings
PARAMETER / PIN
VDD with respect to GND
ENABLE Input Voltage
VEC ⁽¹⁾
VCHG ⁽¹⁾
RESET Output Voltage
VOUT
XI, XO, SDA, SCL, AF, FOUT/nIRQ,
nIRQ2
CONDITION
25°C
25°C
25°C
25°C
25°C
25°C
MIN
GND - 0.3
GND - 0.3
3.0
3.0
GND - 0.3
GND - 0.3
TYPICAL
-
-
-
-
-
-
MAX
3.6
VDD+0.3
4.15
4.15
2.7
3.6
See Ambiq Micro AM0803 Data Sheet
(1) _{No external connections to these pins are allowed, except parallel EnerChips for extended backup time.}
UNITS
V
V
V
V
V
V
Integrated EnerChip Thin Film Battery Operating Characteristics
PARAMETER
CONDITION
MIN TYPICAL
Self-Discharge (5 yr. average)
Non-recoverable
-
2.5
Recoverable
-
1.5⁽¹⁾
Operating Temperature
-
-10
25
Storage Temperature
-
-40
-
Recharge Cycles
(to 80% of rated
capacity)
25°C
10% depth-of-discharge 5000
-
50% depth-of discharge 1000
-
40°C
10% depth-of-discharge 2500
-
50% depth-of-discharge 500
-
Recharge Time (to 80% of rated
Charge cycle 2
-
11
capacity; 4.1V charge; 25°C)
Charge cycle 1000
-
45
Capacity
40nA discharge; 25°C
5
-
(1) _{First month recoverable self-discharge is 5% average.}
(2) _{Storage temperature is for uncharged EnerChip CC device.}
MAX
-
-
+70
+125 ⁽²⁾
-
-
-
-
22
70
-
UNITS
% per year
% per year
°C
°C
cycles
cycles
cycles
cycles
minutes
µAh
Note: All specifications contained within this document are subject to change without notice.
©2014-2015 Cymbet Corporation • Tel: [phone] • www.cymbet.com
DS-72-34 V.20

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