AB0815 RTC IC - Ultra Low Power

AB08X5 Real-Time Clock Family
Date of Issue: October 16, 2014
3.0 x 3.0 mm
Page 1 of 33
Abracon Drawing #453567
Revision: C
Features
• Ultra-low supply current (all at 3V):
- 14 nA with RC oscillator
- 22 nA with RC oscillator and Autocalibration
- 55 nA with crystal oscillator
• Baseline timekeeping features:
- 32.768 kHz crystal oscillator with integrated
load capacitor/resistor
- Counters for hundredths, seconds, minutes,
hours, date, month, year, century, and weekday
- Alarm capability on all counters
- Programmable output clock generation
(32.768 kHz to 1 year)
- Countdown timer with repeat function
- Automatic leap year calculation
• Advanced timekeeping features:
- Integrated power optimized RC oscillator
- Advanced crystal calibration to ± 2 ppm
- Advanced RC calibration to ± 16 ppm
- Automatic calibration of RC oscillator to crystal
oscillator
- Watchdog timer with hardware reset
- 256 bytes of general purpose RAM
• Power management features:
- Automatic switchover to VBAT
- External interrupt monitor
- Programmable low battery detection threshold
- Programmable analog voltage comparator
• I2C (up to 400 kHz) and 3-wire or 4-wire SPI (up
to 2 MHz) serial interfaces available
• Operating voltage 1.5-3.6 V
• Clock and RAM retention voltage 1.5-3.6 V
• Operating temperature –40 to 85 °C
• All inputs include Schmitt Triggers
• 3x3 mm QFN-16 package
Applications
•
•
•
•
•
•
•
•
•
Smart cards
Wireless sensors and tags
Medical electronics
Utility meters
Data loggers
Appliances
Handsets
Consumer electronics
Communications equipment
Description
The ABRACON AB08X5 Real-Time Clock family
provides a groundbreaking combination of ultra-low
power coupled with a highly sophisticated feature
set. With power requirements significantly lower than
any other industry RTC (as low as 14 nA), these are
the first semiconductors based on
innovative
SPOTTM
(Subthreshold
Power
Optimized
Technology) CMOS platform. The AB08X5 includes
on-chip oscillators to provide minimum power
consumption, full RTC functions including battery
backup and programmable counters and alarms for
timer and watchdog functions, and either an I2C or
SPI serial interface for communication with a host
controller.
Disclaimer: AB08X5 series of devices are
based on innovative SPOT technology,
proprietary to Ambiq Micro.
AB08X5 Real-Time Clock Family
1.
Date of Issue: October 16, 2014
3.0 x 3.0 mm
Page 2 of 33
Abracon Drawing #453567
Revision: C
Family Summary
The AB08X5 family consists of several members (see Table 1). All devices are supplied in a standard 3x3
mm QFN-16 package. Members of the software and pin compatible AB18X5 RTC family are also listed.
Table 1: Family Summary
Baseline
Timekeeping
Part #
Advanced Timekeeping
Power Management
XT
Osc
Number
of GP
Outputs
RC
Osc
Calib/
Autocalib
Watchdog
RAM
(B)
VBAT
Switch
AB0805
■
3
■
■
■
256
■
■
I2 C
AB0815
■
2
■
■
■
256
■
■
SPI
Reset
Mgmt
Ext
Int
Power
Switch and
Sleep FSM
Interface
Software and Pin Compatible AB18X5 Family Components
AB1805
■
4
■
■
■
256
■
■
■
■
I2 C
AB1815
■
3
■
■
■
256
■
■
■
■
SPI
AB08X5 Real-Time Clock Family
2.
Date of Issue: October 16, 2014
3.0 x 3.0 mm
Page 3 of 33
Abracon Drawing #453567
Revision: C
Functional Description
Figure 1 illustrates the AB08X5 functional design.
VCC VBAT
nCE
SDI
SCL
SDA/O
I2C/SPI
Interface
Power
Control
Analog
Compare
100ths
Seconds
Minutes
Hours
Days
Weekdays
Months
Calibration Engine
Years
XO
Alarms
XT Osc
Divider
RC Osc
Divider
Timer
WDT
XI
Control
RAM
WDI
EXTI
Int/Clock
FOUT/nIRQ
nIRQ2
nTIRQ
VSS
Figure 1. Detailed Block Diagram
The AB08X5 serves as a full function RTC for host processors such as microcontrollers. The AB08X5
includes 3 distinct feature groups: 1) baseline timekeeping features, 2) advanced timekeeping features,
and 3) basic power management features. Functions from each feature group may be controlled via I/O
offset mapped registers. These registers are accessed using either an I2C serial interface (e.g., in the
AB0805) or a SPI serial interface (e.g., in the AB0815). Each feature group is described briefly below and
in greater detail in subsequent sections.
The baseline timekeeping feature group supports the standard 32.786 kHz crystal (XT) oscillation mode for
maximum frequency accuracy with an ultra-low current draw of 55 nA. The baseline timekeeping feature
group also includes a standard set of counters monitoring hundredths of a second up through centuries. A
complement of countdown timers and alarms may additionally be set to initiate interrupts or resets on
several of the outputs.
AB08X5 Real-Time Clock Family
Date of Issue: October 16, 2014
3.0 x 3.0 mm
Page 4 of 33
Abracon Drawing #453567
Revision: C
The advanced timekeeping feature group supports two additional oscillation modes: 1) RC oscillator mode,
and 2) Autocalibration mode. At only 14 nA, the temperature-compensated RC oscillator mode provides an
even lower current draw than the XT oscillator for applications with reduced frequency accuracy
requirements. A proprietary calibration algorithm allows the AB08X5 to digitally tune the RC oscillator
frequency and the XT oscillator frequency with accuracy as low as 2 ppm at a given temperature. In
Autocalibration mode, the RC oscillator is used as the primary oscillation source and is periodically
calibrated against the XT oscillator. Autocalibration may be done automatically every 8.5 minutes or 17
minutes and may also be initiated via software. This mode enables average current draw of only 22 nA
with frequency accuracy similar to the XT oscillator. The advanced timekeeping feature group also
includes a rich set of input and output configuration options that enables the monitoring of external
interrupts (e.g., pushbutton signals), the generation of clock outputs, and watchdog timer functionality.
Power management features built into the AB08X5 enable it to operate as a backup device in both linepowered and battery-powered systems. An integrated power control module automatically detects when
main power (VCC) falls below a threshold and switches to backup power (VBAT). 256B of ultra-low
leakage RAM enable the storage of key parameters when operating on backup power. The AB08X5 also
includes digitally-tunable voltage detection on the backup power supply.
AB08X5 Real-Time Clock Family
3.
Date of Issue: October 16, 2014
3.0 x 3.0 mm
Page 5 of 33
Abracon Drawing #453567
Revision: C
AB08X5 Example Applications
3.1 Battery Backed Up RTC
The most common AB08X5 application is a battery backed up RTC, which maintains time and may hold
data in RAM. The AB08X5 is normally powered from a system power supply, which may be a larger
battery. The AB08X5 is continuously charging a supercapacitor or rechargeable battery via the internal
trickle charger. When the main power supply goes away, the AB08X5 automatically switches to the VBAT
supply and maintains time and RAM data at very low battery supply currents.
System Power
1.5k*
VBAT
Battery/
Supercap
XO
VCC
VCC
I2C/SPI
AB08X5
MCU
FOUT/nIRQ
XI
IRQ
VSS
VSS
* Total battery series impedance = 1.5k ohms, which may require an external resistor
3.2 RTC with Interrupt Aggregation
The flexible inputs of the AB08X5 can be used to aggregate a variety of interrupt sources, including
external digital inputs, analog levels, timers and alarms into a single interrupt source to an MCU.
System Power
XO
XI
Digital Inputs
Analog Level
WDI
VCC
VCC
I2C/SPI
AB08X5
MCU
FOUT/nIRQ
IRQ
VSS
VSS
EXTI
VBAT
AB08X5 Real-Time Clock Family
4.
Date of Issue: October 16, 2014
3.0 x 3.0 mm
Page 6 of 33
Abracon Drawing #453567
Revision: C
Package Pins
4.1 Pin Configuration and Connections
Figure 2 and Table 2 show the QFN-16 pin configurations for the AB08X5 parts. Pins labeled NC must be
left unconnected. The thermal pad, pin 17, on the QFN-16 packages must be connected to VSS.
EXTI
NC
VSS
nIRQ2
XO
AF
VCC
1
VSS
PAD
nCE
FOUT/nIRQ
EXTI
SDI
SCL
NC
NC
WDI
NC
SCL
SDA
nIRQ2
VBAT
XI
nTIRQ
FOUT/nIRQ
VSS
PAD
SDO
VCC
XO
1
NC
AB0815
VBAT
NC
WDI
AF
XI
AB0805
Figure 2. Pin Configuration Diagram
Table 2: Pin Connections
Pin Number
Pin Name
Pin Type
Function
AB0805
AB0815
9,17
17
VSS
Power
Ground
VCC
Power
System power supply
13
13
XI
XT
Crystal input
16
16
XO
XT
Crystal output
15
15
AF
Output
Autocalibration filter
14
14
VBAT
Power
Battery power supply
5
5
I2
7
7
SCL
Input
SDO
Output
SDI
C or SPI interface clock
SPI data output
6
Input
SPI data input
9
nCE
Input
SPI chip select
12
SDA
Input
I2C data input/output
6
EXTI
Input
External interrupt input
10
10
WDI
Input
Watchdog reset input
2
2
FOUT/nIRQ
Output
Int 1/function output
11
11
nIRQ2
Output
Int 2 output
4
4
nTIRQ
Output
Timer interrupt output
12
AB08X5 Real-Time Clock Family
Date of Issue: October 16, 2014
3.0 x 3.0 mm
Page 7 of 33
Abracon Drawing #453567
Revision: C
4.2 Pin Descriptions
Table 3 provides a description of the pin connections.
Table 3: Pin Descriptions
Pin Name
Description
VSS
Ground connection. In the QFN-16 packages the ground slug on the bottom of the package must be
connected to VSS.
VCC
Primary power connection. If a single power supply is used, it must be connected to VCC.
VBAT
Battery backup power connection. If a backup battery is not present, VBAT must be connected directly
to VSS, but it may also be used to provide the analog input to the internal comparator (see AnalogComparator).
XI
Crystal oscillator input connection.
XO
Crystal oscillator output connection.
AF
Autocalibration filter connection. A 47pF ceramic capacitor must be placed between this pin and VSS
for improved Autocalibration mode timing accuracy.
SCL
I/O interface clock connection. It provides the SCL input in both I2C and SPI interface parts. A pull-up
resistor is required on this pin.
SDA (only available in
I2C environments)
I/O interface I2C data connection. A pull-up resistor is required on this pin.
SDO (only available in
SPI environments)
I/O interface SPI data output connection.
SDI
I/O interface SPI data input connection.
nCE (only available in
SPI environments)
I/O interface SPI chip select input connection. It is an active low signal. A pull-up resistor is recommended to be connected to this pin to ensure it is not floating. A pull-up resistor also prevents inadvertent writes to the RTC during power transitions.
EXTI
External interrupt input connection. It may be used to generate an External 1 interrupt with polarity
selected by the EX1P bit if enabled by the EX1E bit. The value of the EXTI pin may be read in the EXIN
register bit. This pin does not have an internal pull-up or pull-down resistor and so one must be added
externally. It must not be left floating or the RTC may consume higher current. Instead, it must be connected directly to either VCC or VSS if not used.
WDI
Watchdog Timer reset input connection. It may also be used to generate an External 2 interrupt with
polarity selected by the EX2P bit if enabled by the EX2E bit. The value of the WDI pin may be read in
the WDIN register bit. This pin does not have an internal pull-up or pull-down resistor and so one must
be added externally. It must not be left floating or the RTC may consume higher current. Instead, it
must be connected directly to either VCC or VSS if not used.
AB08X5 Real-Time Clock Family
Date of Issue: October 16, 2014
3.0 x 3.0 mm
Page 8 of 33
Abracon Drawing #453567
Revision: C
Table 3: Pin Descriptions
Pin Name
FOUT/nIRQ
nIRQ2
nTIRQ (only available in
I2 C
environments)
Description
Primary interrupt output connection. This pin is an open drain output. An external pull-up resistor must
be added to this pin. It should be connected to the host device and is used to indicate when the RTC
can be accessed via the serial interface. FOUT/nIRQ may be configured to generate several signals as
a function of the OUT1S field(see 0x11 - Control2). FOUT/nIRQ is also asserted low on a power up
until the AB08X5 has exited the reset state and is accessible via the I/O interface.
1.
2.
3.
4.
FOUT/nIRQ can drive the value of the OUT bit.
FOUT/nIRQ can drive the inverse of the combined interrupt signal IRQ (see Interrupts).
FOUT/nIRQ can drive the square wave output (see 0x13 - SQW) if enabled by SQWE.
FOUT/nIRQ can drive the inverse of the alarm interrupt signal AIRQ (see Interrupts).
1.
Secondary interrupt output connection. It is an open drain output. This pin can be left floating if not
used. nIRQ2 may be configured to generate several signals as a function of the OUT2S field (see
0x11 - Control2). nIRQ2 can drive the value of the OUTB bit.
nIRQ2 can drive the square wave output (see 0x13 - SQW) if enabled by SQWE.
nIRQ2 can drive the inverse of the combined interrupt signal IRQ(see Interrupts).
nIRQ2 can drive the inverse of the alarm interrupt signal AIRQ(see Interrupts).
nIRQ2 can drive either sense of the timer interrupt signal TIRQ.
2.
3.
4.
5.
Timer interrupt output connection. It is an open drain output. nTIRQ always drives the active low nTIRQ
signal. If this pin is used, an external pull-up resistor must be added to this pin. If the pin is not used, it
can be left floating.
AB08X5 Real-Time Clock Family
5.
Date of Issue: October 16, 2014
3.0 x 3.0 mm
Page 9 of 33
Abracon Drawing #453567
Revision: C
Electrical Specifications
5.1 Absolute Maximum Ratings
Table 4 lists the absolute maximum ratings.
Table 4: Absolute Maximum Ratings
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VCC
System Power Voltage
-0.3
3.8
V
VBAT
Battery Voltage
-0.3
3.8
V
VI
Input voltage
VCC Power state
-0.3
VCC+ 0.3
V
VI
Input voltage
VBAT Power state
-0.3
VBAT+ 0.3
V
VO
Output voltage
VCC Power state
-0.3
VCC+ 0.3
V
VO
Output voltage
VBAT Power state
-0.3
VBAT+ 0.3
V
II
Input current
-10
10
mA
IO
Output current
-20
20
mA
VESD
CDM
±500
V
ESD Voltage
HBM
±4000
V
ILU
Latch-up Current
100
mA
TSTG
Storage Temperature
-55
125
°C
TOP
Operating Temperature
-40
85
°C
TSLD
Lead temperature
Hand soldering for 10 seconds
300
°C
TREF
Reflow soldering temperature
Reflow profile per JEDEC JSTD-020D.1
260
°C
5.2 Power Supply Parameters
Figure 3 and Table 5 describe the power supply and switchover parameters. See Power Control and
Switching for a detailed description of the operations.
VCC
VCCST
VBAT
Power State
VCCRST
VCCST
VCCSWF
VCCSWR
VCCSWF
VBATSW
POR
VCC Power
VBATRST
POR
VCC Power
VBAT Power
Figure 3. Power Supply Switchover
VCC Power
VBAT Power
POR
AB08X5 Real-Time Clock Family
Date of Issue: October 16, 2014
3.0 x 3.0 mm
Page 10 of 33
Abracon Drawing #453567

Revision: C
For Table 5, TA = -40 °C to 85 °C, TYP values at 25 °C.
Table 5: Power Supply and Switchover Parameters
SYMBO
L
PARAMETER
PWR
TYPE
POWER STATE
TEST
CONDITIONS
MIN
TYP
MAX
UNIT
VCC
System Power Voltage
VCC
Static
VCC Power
Clocks operating
and RAM and
registers retained
1.5
3.6
V
VCCIO
VCC I/O Interface
Voltage
VCC
Static
VCC Power
I2C or SPI operation
1.5
3.6
V
VCCST
VCC Start-up Voltage(1)
VCC
Rising
POR -> VCC Power
VCCRST
VCC Reset Voltage
VCC
Falling
VCC Power -> POR
VBAT < VBAT,MIN or
no VBAT
1.3
1.5
V
VCCSWR
VCC Rising Switch-over
Threshold Voltage
VCC
Rising
VBAT Power ->
VCC Power
VBAT ≥ VBATRST
1.6
1.7
V
VCCSWF
VCC Falling Switch-over
Threshold Voltage
VCC
Falling
VCC Power ->
VBAT Power
VBAT ≥ VBATSW,MIN
VCC
Hyst.
VCC Power <->
VBAT Power
VCC
Falling
VCC Power ->
VBAT Power
VCC < VCCSW,MAX
0.7
VBAT
Static
VBAT Power
Clocks operating
and RAM and registers retained
1.4
3.6
V
VBAT
Static
VCC Power ->
VBAT Power
1.6
3.6
V
VBAT
Falling
VBAT
POR
1.4
V
VBAT
Static
VBAT Power
200
VBAT
Static
VBAT Power
1.0
VCCSWH
VCCFS
VBAT
VBATSW
VBATRST
VBMRG
VBATESR
VCC Switchover Threshold Hysteresis(2)
VCC Falling Slew Rate
to switch to VBAT state(4)
Battery Voltage
Battery Switchover Voltage Range(5)
Falling Battery POR Voltage(7)
VBAT
Margin
above
VCC(3)
VBAT supply series resistance(6)
Power
->
1.6
1.2
VCC < VCCSWF
V
1.5
V
70
mV
1.4
V/ms
1.1
mV
1.5
k
(1)
VCC must be above VCCST to exit the POR state, independent of the VBAT voltage.
(2) Difference between V
CCSWR and VCCSWF.
(3)
VBAT must be higher than VCC by at least this voltage to ensure the AB08X5 remains in the VBAT Power state.
(4) Maximum VCC falling slew rate to guarantee correct switchover to VBAT Power state. There is no V
CC falling slew
rate
requirement if switching to the VBAT power source is not required.
(5)
VBAT voltage to guarantee correct transition to VBAT Power state when VCC falls.
(6) Total series resistance of the power source attached to the VBAT pin. The optimal
external resistor. VBAT power source ESR + external resistor value = 1.5k
(7)
VBATRST is also the static voltage required on VBAT for register data retention.
value is 1.5k, which may require an
AB08X5 Real-Time Clock Family
Date of Issue: October 16, 2014
3.0 x 3.0 mm
Page 11 of 33
Abracon Drawing #453567
Revision: C
5.3 Operating Parameters
Table 6 lists the operating parameters.

For Table 6, TA = -40 °C to 85 °C, TYP values at 25 °C.
Table 6: Operating Parameters
SYMBOL
PARAMETER
TEST
CONDITIONS
VCC
MIN
TYP
MAX
VT+
Positive-going Input Threshold Voltage
3.0V
1.5
2.0
1.8V
1.1
1.25
VT-
Negative-going Input Threshold Voltage
3.0V
0.8
0.9
1.8V
0.5
0.6
IILEAK
Input leakage current
3.0V
CI
Input capacitance
VOH
High level output voltage on
push-pull outputs
1.7V – 3.6V
VOL
Low level output voltage
1.7V – 3.6V
IOH
IOL
IOLEAK
High level output current on
push-pull outputs
Low level output current
Output leakage current
0.02
VOL = 0.2●VCC
80
nA
pF
0.8•VCC
V
0.2•VCC
1.7V
-2
-3.8
1.8V
-3
-4.3
3.0V
-7
-11
3.6V
-8.8
-15
1.7V
3.3
5.9
1.8V
6.1
6.9
3.0V
17
19
3.6V
18
20
1.7V – 3.6V
V
V
3
VOH = 0.8●VCC
UNIT
0.02
V
mA
mA
80
nA
AB08X5 Real-Time Clock Family
Date of Issue: October 16, 2014
3.0 x 3.0 mm
Page 12 of 33
Abracon Drawing #453567
Revision: C
5.4 Oscillator Parameters
Table 7 lists the oscillator parameters.

For Table 7, TA = -40 °C to 85 °C unless otherwise indicated.
VCC = 1.7 to 3.6V, TYP values at 25 °C and 3.0V.
Table 7: Oscillator Parameters
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
FXT
XI and XO pin Crystal Frequency
32.768
kHz
FOF
XT Oscillator failure detection
frequency
8
kHz
CINX
Internal XI and XO pin capacitance
1
pF
CEX
External XI and XO pin PCB
capacitance
1
pF
OAXT
XT Oscillation Allowance
320
kΩ
128
Hz
FRCC
FRCU
JRCCC
quency(1)
Factory Calibrated at 25°C,
VCC = 2.8V
Uncalibrated RC Oscillator
Frequency
Calibration Disabled (OFFSETR = 0)
RC Oscillator cycle-to-cycle
jitter
XT mode digital calibration
AXT
accuracy(1)
AAC
TAC
Calibrated RC Oscillator Fre-
At 25°C using a 32.768 kHz
crystal
270
89
122
Calibration Disabled (OFFSETR = 0) – 128 Hz
2000
Calibration Disabled (OFFSETR = 0) – 1 Hz
500
Calibrated at an initial temperature and voltage
-2
2
24 hour run time
35
1 week run time
20
TA = -10°C to 60°C(1)
1 month run time
10
1 year run time
3
ing temperature(2)
Hz
ppm
Autocalibration mode timing
accuracy, 512 second period,
Autocalibration mode operat-
220
-10
ppm
ppm
60
°C
(1)
Timing accuracy is specified at 25°C after digital calibration of the internal RC oscillator and 32.768 kHz crystal. A typical
32.768 kHz tuning fork crystal has a negative temperature coefficient with a parabolic frequency deviation, which due to
the crystal alone can result in a change of up to 150 ppm across the entire operating temperature range of -40°C to 85°C
in XT mode. Autocalibration mode timing accuracy is specified relative to XT mode timing accuracy from -10°C to 60°C.
(2)
Outside of this temperature range, the RC oscillator frequency change due to temperature may be outside of the allowable
RC digital calibration range (+/-12%) for autocalibration mode.If this happens, an autocalibration failure will occur and the
ACF interrupt flag is set. The AB08X5 should be switched to use the XT oscillator as its clock source. Please see the
Autocalibration Fail section for more details.
AB08X5 Real-Time Clock Family
Date of Issue: October 16, 2014
3.0 x 3.0 mm
Page 13 of 33
Abracon Drawing #453567
Revision: C
Figure 4 shows the typical calibrated RC oscillator frequency variation vs. temperature. RC oscillator
calibrated at 2.8V, 25°C.
150
TA = 25 °C
145
RC Frequency (Hz)
140
135
VCC = 1.8V
130
VCC = 3.0V
125
120
‐40
‐30
‐20
115
‐10
0
10
20
30
40
Temperature (°C)
50
60
70
80
Figure 4. Calibrated RC Oscillator Typical Frequency Variation vs. Temperature
Figure 5 shows the typical uncalibrated RC oscillator frequency variation vs. temperature.
145
TA = 25 °C
RC Frequency (Hz)
140
135
130
VCC = 1.8V
125
VCC = 3.0V
120
‐40
‐30
‐20
115
‐10
0
10
20
30
40
Temperature (°C)
50
60
70
80
Figure 5. Uncalibrated RC Oscillator Typical Frequency Variation vs. Temperature
AB08X5 Real-Time Clock Family
Date of Issue: October 16, 2014
3.0 x 3.0 mm
Page 14 of 33
Abracon Drawing #453567
Revision: C
5.5 VCC Supply Current
Table 8 lists the current supplied into the VCC power input under various conditions.

For Table 8, TA = -40 °C to 85 °C, VBAT = 0 V to 3.6 V
TYP values at 25 °C, MAX values at 85 °C, VCC Power state
Table 8: VCC Supply Current
SYMBOL
PARAMETER
TEST CONDITIONS
VCC
IVCC:I2C
VCC supply current during I2C
burst read/write
400kHz bus speed, 2.2k pull-up
resistors on SCL/SDA(1)
IVCC:SPIW
VCC supply current during SPI
burst write
2 MHz bus speed (2)
IVCC:SPIR
VCC supply current during SPI
burst read
2 MHz bus speed (2)
IVCC:XT
VCC supply current in XT oscillator mode
IVCC:RC
VCC supply current in RC oscillator mode
IVCC:ACAL
Average VCC supply current in
Autocalibrated RC oscillator
mode
TYP
MAX
3.0V
6
10
1.8V
1.5
3
3.0V
8
12
1.8V
4
6
3.0V
23
37
1.8V
13
21
Time keeping mode with XT
3.0V
55
330
oscillator running(3)
1.8V
51
290
Time keeping mode with only
the RC oscillator running (XT
3.0V
14
220
oscillator is off)(3)
1.8V
11
170
Time keeping mode with only
RC oscillator running and Autocalibration enabled.
ACP =
3.0V
22
235
1.8V
18
190
512
seconds(3)
MIN
(1) Excluding
UNIT
external peripherals and pull-up resistor current. All other inputs (besides SDA and SCL) are at 0V or VCC.
AB0805 only. Test conditions: Continuous burst read/write, 0x55 data pattern, 25 s between each data byte, 20 pF load
on each bus pin.
(2)
Excluding external peripheral current. All other inputs (besides SDI, nCE and SCL) are at 0V or VCC. AB0815 only. Test
conditions: Continuous burst write, 0x55 data pattern, 25 s between each data byte, 20 pF load on each bus pin.
(3)
All inputs and outputs are at 0 V or VCC
µA
µA
µA
nA
nA
nA
AB08X5 Real-Time Clock Family
Date of Issue: October 16, 2014
3.0 x 3.0 mm
Page 15 of 33
Abracon Drawing #453567
Revision: C
Figure 6 shows the typical VCC power state operating current vs. temperature in XT mode.
VCC Power State, XT Mode Current (nA)
130
TA = 25 °C
120
110
100
90
80
VCC = 3.0V
70
60
VCC = 1.8V
50
40
‐40
‐30
‐20
‐10
0
10
20
30
40
Temperature (°C)
50
60
70
80
Figure 6. Typical VCC Current vs. Temperature in XT Mode
Figure 7 shows the typical VCC power state operating current vs. temperature in RC mode.
VCC Power State, RC Mode Current (nA)
75
TA = 25 °C
65
55
45
35
VCC = 3.0V
25
VCC = 1.8V
15
5
‐40
‐30
‐20
‐10
0
10
20
30
40
Temperature (°C)
50
60
70
Figure 7. Typical VCC Current vs. Temperature in RC Mode
80
AB08X5 Real-Time Clock Family
Date of Issue: October 16, 2014
3.0 x 3.0 mm
Page 16 of 33
Abracon Drawing #453567
Revision: C
Figure 8 shows the typical VCC power state operating current vs. temperature in RC Autocalibration mode.
55
VCC Power State, Autocal Mode Current (nA)
TA = 25 °C
50
45
40
35
30
VCC = 3.0V
25
20
VCC = 1.8V
15
10
5
‐40
‐30
‐20
‐10
0
10
20
30
40
50
60
70
Temperature (°C)
Figure 8. Typical VCC Current vs. Temperature in RC Autocalibration Mode
Figure 9 shows the typical VCC power state operating current vs. voltage for XT Oscillator and RC
Oscillator modes and the average current in RC Autocalibrated mode.
70
TA = 25 °C
VCC Power State Current (nA)
60
XT Oscillator Mode
50
40
30
RC Autocalibrated Mode
20
10
RC Oscillator Mode
0
1.5
2
2.5
3
3.5
VCC Voltage (V)
Figure 9. Typical VCC Current vs. Voltage, Different Modes of Operation
AB08X5 Real-Time Clock Family
Date of Issue: October 16, 2014
3.0 x 3.0 mm
Page 17 of 33
Abracon Drawing #453567
Revision: C
Figure 10 shows the typical VCC power state operating current during continuous I2C and SPI burst read
and write activity. Test conditions: TA = 25 °C, 0x55 data pattern, 25 s between each data byte, 20 pF
load on each bus pin, pull-up resistor current not included.
30
TA = 25 °C
VCC Current (µA)
25
20
SPI Burst Read
15
10
SPI Burst Write
5
I2 C Burst Read/Write
0
1.8
2
2.2
2.4
2.6
2.8
3
3.2
3.4
VCC Voltage (V)
Figure 10. Typical VCC Current vs. Voltage, I²C and SPI Burst Read/Write
3.6
AB08X5 Real-Time Clock Family
Date of Issue: October 16, 2014
3.0 x 3.0 mm
Page 18 of 33
Abracon Drawing #453567
Revision: C
5.6 VBAT Supply Current
Table 9 lists the current supplied into the VBAT power input under various conditions.

For Table 9, TA = -40 °C to 85 °C, TYP values at 25 °C, MAX values at 85 °C, VBAT Power state.
Table 9: VBAT Supply Current
SYMBOL
PARAMETER
TEST CONDITIONS
IVBAT:XT
VBAT supply current in
XT oscillator mode
Time keeping mode with
IVBAT:RC
VBAT supply current in
RC oscillator mode
IVBAT:ACAL
Average VBAT supply
current in Autocalibrated
RC oscillator mode
IVBAT:VCC
(1)
VBAT supply current in
VCC powered mode
XT oscillator running(1)
Time keeping mode with
only the RC oscillator running (XT oscillator is off)(1)
Time keeping mode with
the RC oscillator running.
Autocalibration enabled.
VCC
VBAT
< VCCSWF
< VCCSWF
< VCCSWF
ACP = 512 seconds(1)
VCC powered mode(1)
1.7 - 3.6 V
MIN
TYP
MAX
3.0V
56
330
1.8V
52
290
3.0V
16
220
1.8V
12
170
3.0V
24
235
1.8V
20
190
3.0V
-5
0.6
20
1.8V
-10
0.5
16
Test conditions: All inputs and outputs are at 0 V or VCC.
Figure 11 shows the typical VBAT power state operating current vs. temperature in XT mode.
VBAT Power State, XT Mode Current (nA)
130
TA = 25 °C
120
110
100
90
80
VBAT = 3.0V
70
60
VBAT = 1.8V
50
40
‐40
‐30
‐20
‐10
0
10
20
30
40
50
60
70
Temperature (°C)
Figure 11. Typical VBAT Current vs. Temperature in XT Mode
80
UNIT
nA
nA
nA
nA
AB08X5 Real-Time Clock Family
Date of Issue: October 16, 2014
3.0 x 3.0 mm
Page 19 of 33
Abracon Drawing #453567
Revision: C
Figure 12 shows the typical VBAT power state operating current vs. temperature in RC mode.
VBAT Power State, RC Mode Current (nA)
75
TA = 25 °C
65
55
45
35
VBAT = 3.0V
25
VBAT = 1.8V
15
5
‐40
‐30
‐20
‐10
0
10
20
30
40
50
60
70
80
Temperature (°C)
Figure 12. Typical VBAT Current vs. Temperature in RC Mode
Figure 13 shows the typical VBAT power state operating current vs. temperature in RC Autocalibration
mode.
VBAT Power State, Autocal Mode Current (nA)
55
TA = 25 °C
50
45
40
35
30
VBAT = 3.0V
25
20
VBAT = 1.8V
15
10
5
‐40
‐30
‐20
‐10
0
10
20
30
40
50
60
70
Temperature (°C)
Figure 13. Typical VBAT Current vs. Temperature in RC Autocalibration Mode
AB08X5 Real-Time Clock Family
Date of Issue: October 16, 2014
3.0 x 3.0 mm
Page 20 of 33
Abracon Drawing #453567
Revision: C
Figure 14 shows the typical VBAT power state operating current vs. voltage for XT Oscillator and RC
Oscillator modes and the average current in RC Autocalibrated mode, VCC = 0 V.
70
TA = 25 °C
VBAT Current (nA)
60
50
XT Oscillator Mode
40
30
RC Autocalibrated Mode
20
10
RC Oscillator Mode
0
1.5
2
2.5
VBAT Voltage (V)
3
3.5
Figure 14. Typical VBAT Current vs. Voltage, Different Modes of Operation
Figure 15 shows the typical VBAT current when operating in the VCC power state, VCC = 1.7 V.
0.9
TA = 25 °C, VCC = 1.7 V
0.8
VBAT Current (nA)
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
1.5
2
2.5
VBAT Voltage (V)
3
Figure 15. Typical VBAT Current vs. Voltage in VCC Power State
3.5
AB08X5 Real-Time Clock Family
Date of Issue: October 16, 2014
3.0 x 3.0 mm
Page 21 of 33
Abracon Drawing #453567
Revision: C
5.7 BREF Electrical Characteristics
Table 10 lists the parameters of the VBAT voltage thresholds. BREF values other than those listed in the
table are not supported.

For Table 10, TA = -20 °C to 70 °C, TYP values at 25 °C, VCC = 1.7 to 3.6V.
Table 10: BREF Parameters
SYMBOL
VBRF
PARAMETER
VBAT falling threshold
BREF
MIN
TYP
MAX
0111
2.3
2.5
3.3
1011
1.9
2.1
2.8
1101
1.6
1.8
2.5
1111
VBRR
VBRH
TBR
VBAT rising threshold
VBAT threshold hysteresis
VBAT analog comparator recommended operating temperature range
V
1.4
0111
2.6
3.0
3.4
1011
2.1
2.5
2.9
1101
1.9
2.2
2.7
1111
1.6
0111
0.5
1011
0.4
1101
0.4
1111
0.2
All values
UNIT
-20
V
V
70
°C
AB08X5 Real-Time Clock Family
Date of Issue: October 16, 2014
3.0 x 3.0 mm
Page 22 of 33
Abracon Drawing #453567
Revision: C
5.8 I²C AC Electrical Characteristics
Figure 16 and Table 11 describe the I2C AC electrical parameters.
SDA
tBUF
tLOW
tHD:DAT
tSU:DAT
SCL
tHD:STA
tRISE
tFALL
tHIGH
tSU:STO
tSU:STA
SDA
Figure 16. I²C AC Parameter Definitions

For Table 11, TA = -40 °C to 85 °C, TYP values at 25 °C.
Table 11: I²C AC Electrical Parameters
SYMBOL
PARAMETER
VCC
MIN
TYP
MAX
UNIT
400
kHz
fSCL
SCL input clock frequency
1.7V-3.6V
10
tLOW
Low period of SCL clock
1.7V-3.6V
1.3
µs
tHIGH
High period of SCL clock
1.7V-3.6V
600
ns
tRISE
Rise time of SDA and SCL
1.7V-3.6V
300
ns
tFALL
Fall time of SDA and SCL
1.7V-3.6V
300
ns
tHD:STA
START condition hold time
1.7V-3.6V
600
ns
tSU:STA
START condition setup time
1.7V-3.6V
600
ns
tSU:DAT
SDA setup time
1.7V-3.6V
100
ns
tHD:DAT
SDA hold time
1.7V-3.6V
0
ns
tSU:STO
STOP condition setup time
1.7V-3.6V
600
ns
tBUF
Bus free time before a new transmission
1.7V-3.6V
1.3
µs
AB08X5 Real-Time Clock Family
Date of Issue: October 16, 2014
3.0 x 3.0 mm
Page 23 of 33
Abracon Drawing #453567
Revision: C
5.9 SPI AC Electrical Characteristics
Figure 17, Figure 18, and Table 12 describe the SPI AC electrical parameters.
tBUF
nCE
tSU:NCE
tHD:NCE
tLOW
tSU:CE
tFALL
tHIGH
SCL
tSU:SDI
tHD:SDI
MSB IN
SDI
tRISE
LSB IN
Figure 17. SPI AC Parameter Definitions – Input
nCE
SCL
tSU:SDO
SDO
tHD:SDO
MSB OUT
tHZ
LSB OUT
SDI ADDR LSB
Figure 18. SPI AC Parameter Definitions – Output

For Table 12, TA = -40 °C to 85 °C, TYP values at 25 °C.
AB08X5 Real-Time Clock Family
Date of Issue: October 16, 2014
3.0 x 3.0 mm
Page 24 of 33
Abracon Drawing #453567
Revision: C
Table 12: SPI AC Electrical Parameters
SYMBOL
PARAMETER
VCC
MIN
TYP
MAX
UNIT
2
MHz
fSCL
SCL input clock frequency
1.7V–3.6V
0.01
tLOW
Low period of SCL clock
1.7V–3.6V
200
ns
tHIGH
High period of SCL clock
1.7V–3.6V
200
ns
tRISE
Rise time of all signals
1.7V–3.6V
1
µs
tFALL
Fall time of all signals
1.7V–3.6V
1
µs
tSU:NCE
nCE low setup time to SCL
1.7V–3.6V
200
ns
tHD:NCE
nCE hold time to SCL
1.7V–3.6V
200
ns
tSU:CE
nCE high setup time to SCL
1.7V–3.6V
200
ns
tSU:SDI
SDI setup time
1.7V–3.6V
40
ns
tHD:SDI
SDI hold time
1.7V–3.6V
50
ns
tSU:SDO
SDO output delay from SCL
1.7V–3.6V
tHD:SDO
SDO output hold from SCL
1.7V–3.6V
tHZ
SDO output Hi-Z from nCE
1.7V–3.6V
tBUF
nCE high time before a new transmission
1.7V–3.6V
150
0
ns
250
200
ns
ns
ns
AB08X5 Real-Time Clock Family
Date of Issue: October 16, 2014
3.0 x 3.0 mm
Page 25 of 33
Abracon Drawing #453567
Revision: C
5.10 Power On AC Electrical Characteristics
Figure 19 and Table 13 describe the power on AC electrical characteristics for the FOUT pin and XT
oscillator.
VCC
tLOW:VCC
VCCRST
VCCST
tVH:FOUT
FOUT tVL:FOUT
tXTST
XT
Figure 19. Power On AC Electrical Characteristics

For Table 13, TA = -40 °C to 85 °C, VBAT < 1.2 V
Table 13: Power On AC Electrical Parameters
SYMBOL
tLOW:VCC
tVL:FOUT
tVH:FOUT
tXTST
PARAMETER
Low period of VCC to ensure a valid POR
VCC low to FOUT low
VCC high to FOUT high
FOUT high to XT oscillator start
VCC
1.7V–3.6V
1.7V–3.6V
1.7V–3.6V
1.7V–3.6V
TA
MIN
TYP
85 °C
0.1
25 °C
0.1
-20 °C
1.5
-40 °C
10
85 °C
0.1
25 °C
0.1
-20 °C
1.5
-40 °C
10
85 °C
0.4
25 °C
0.5
-20 °C
3
-40 °C
20
85 °C
0.4
25 °C
0.4
-20 °C
0.5
-40 °C
1.5
MAX
UNIT
s
s
s
s
AB08X5 Real-Time Clock Family
6.
Date of Issue: October 16, 2014
3.0 x 3.0 mm
Page 26 of 33
Abracon Drawing #453567
Revision: C
Tape and Reel Information
T (thickness)
REEL DRAWING
Detail A
D C
Detail A
Detail B
B
Detail B
L
N
R = 4 mm
R = 4 mm
G
5? W1
(inner width at HUB)
A
W3 (inner width at outer edge of reel)
W2 (outer width at HUB)
P2
P0
E1
K1
ø D1
F
W
B0
SECTION Y‐Y
Detail A
Y
DETAIL A
R
0. EF
35
3?
REF
K0
REF
R0.65
R0 REF
.6
0
CARRIER TAPE DRAWING
ø D0
Y
P1
A0
AB08X5 Real-Time Clock Family
Date of Issue: October 16, 2014
3.0 x 3.0 mm
Page 27 of 33
Abracon Drawing #453567
Revision: C
Table 14: Tape and Reel Dimensions
330 x 178 x 12 mm Reel Dimensions
Symbol
MIN
TYP
MAX
T
2.3
2.5
2.7
N
Units
Symbol
MIN
TYP
MAX
B0
3.2
3.3
3.4
K0
0.9
1.0
1.1
330.0
K1
0.25
0.3
0.35
12.6
D0
1.50
1.55
1.60
18.4
D1
1.5
P0
3.9
4.0
4.1
P1
7.9
8.0
8.1
P2
1.9
2.0
2.1
178.0
L
W1
3x3 QFN Carrier Tape Dimensions
12.4
12.4
W2
W3
12.4
C
12.8
D
20.2
15.4
13.0
13.5
mm
A
10.0
A0
3.2
3.3
3.4
G
4.0
E1
1.65
1.75
1.85
F
5.4
5.5
5.6
W
11.7
12.0
12.3
B
1.5
Units
mm
AB08X5 Real-Time Clock Family
7.
Date of Issue: October 16, 2014
3.0 x 3.0 mm
Page 28 of 33
Abracon Drawing #453567
Reflow Profile
Figure 20 illustrates the reflow soldering requirements.
Figure 20. Reflow Soldering Diagram
Table 15: Reflow Soldering Requirements (Pb-free assembly)
Profile Feature
Preheat/Soak
Temperature Min (Tsmin)
Temperature Max (Tsmax)
Time (ts) from (Tsmin to Tsmax)
Requirement
150 °C
200 °C
60-120 seconds
Ramp-up rate (TL to Tp)
3 °C/second max.
Liquidous temperature (TL)
Time (tL) maintained above TL
217 °C
60-150 seconds
Peak package body temperature (Tp)
260 °C max.
Time (tp) within 5 °C of Tp
30 seconds max.
Ramp-down rate (Tp to TL)
6 °C/second max.
Time 25 °C to peak temperature
8 minutes max.
Revision: C
AB08X5 Real-Time Clock Family
8.
Date of Issue: October 16, 2014
3.0 x 3.0 mm
Page 29 of 33
Abracon Drawing #453567
Revision: C
Ordering Information
Table 16: Ordering Information
AB08X5 Orderable Part Numbers
P/N
Tape and Reel Qty
AB0805-T3
3000pcs/reel
AB0815-T3
3000pcs/reel
Package
Temperature
Range
MSL Level(2)
Pb-Free(1) 16-Pin QFN 3 x
3 mm
-40 to +85 °C
1
(1)
Compliant and certified with the current RoHS requirements for all 6 substances, including the requirement that lead not
exceed 0.1% by weight in raw homogeneous materials. The package was designed to be soldered at high temperatures
(per reflow profile) and can be used in specified lead-free processes.
(2)
Moisture Sensitivity Level rating according to the JEDEC J-STD-020D.1 industry standard classifications.
AB08X5 Real-Time Clock Family
9.
i.
ii.
iii.
iv.
v.
vi.
Date of Issue: October 16, 2014
3.0 x 3.0 mm
Page 30 of 33
Abracon Drawing #453567
Revision: C
Notes
The parts are manufactured in accordance with this specification. If other conditions and specifications which are required for this specification, please contact ABRACON for more information.
ABRACON will supply the parts in accordance with this specification unless we receive a written
request to modify prior to an order placement.
In no case shall ABRACON be liable for any product failure from inappropriate handling or operation
of the item beyond the scope of this specification.
When changing your production process, please notify ABRACON immediately.
ABRACON Corporation’s products are COTS – Commercial-Off-The-Shelf products; suitable for
Commercial, Industrial and, where designated, Automotive Applications. ABRACON’s products are
not specifically designed for Military, Aviation, Aerospace, Life-dependant Medical applications or any
application requiring high reliability where component failure could result in loss of life and/or property.
For applications requiring high reliability and/or presenting an extreme operating environment, written
consent and authorization from ABRACON Corporation is required. Please contact ABRACON Corporation for more information.
All specifications and Marking will be subject to change without notice.
AB08X5 Real-Time Clock Family
Date of Issue: October 16, 2014
3.0 x 3.0 mm
Page 31 of 33
Abracon Drawing #453567
Revision: C
10. ABRACON CORPORATION – TERMS & CONDITIONS OF SALE
The following are the terms and conditions under which Abracon Corporation (“AB”) agrees to sell, to the
entity named on the face hereof (“Buyer”), the products specified on the face hereof (the “Products”).
Notwithstanding Buyer’s desire to use standardized RFQs, purchase order forms, order forms,
acknowledgment forms and other documents which may contain terms in addition to or at variance with
these terms, it is expressly understood and agreed that other forms shall neither add to, nor vary, these
terms whether or not these terms are referenced therein. Buyer may assent to these terms by written
acknowledgment, implication and/or by acceptance or payment of goods ordered any of which will
constitute assent.
1.
2.
3.
4.
5.
Prices: Prices shown on the face hereof are in US dollars, with delivery terms specified herein and
are exclusive of any other charges including, without limitation, fees for export, special packaging,
freight, insurance and similar charges. AB reserves the right to increase the price of Products by written notice to Buyer at least thirty (30) days prior to the original date of shipment. When quantity price
discounts are quoted by AB, the discounts are computed separately for each type of product to be
sold and are based upon the quantity of each type and each size ordered at any one time. If any discounted order is reduced by Buyer with AB’s consent, the prices shall be adjusted to the higher prices,
if applicable, for the remaining order.
Taxes: Unless otherwise specified in the quotation, the prices do not include any taxes, import or
export duties, tariffs, customs charges or any such other levies. Buyer agrees to reimburse AB the
amount of any federal, state, county, municipal, or other taxes, duties, tariffs, or custom charges AB is
required to pay. If Buyer is exempt from any such charges, Buyer must provide AB with appropriate
documentation.
Payment Terms: For each shipment, AB will invoice Buyer for the price of the Products plus all applicable taxes, packaging, transportation, insurance and other charges. Unless otherwise stated in a
separate agreement or in AB’s quotation, payments are due within thirty (30) days from the date of
invoice, subject to AB’s approval of Buyer’s credit application. All invoicing disputes must be submitted in writing to AB within ten (10) days of the receipt of the invoice accompanied by a reasonably
detailed explanation of the dispute. Payment of the undisputed amounts shall be made timely. AB
reserves the right to require payment in advance or C.O.D. and otherwise modified credit terms.
When partial shipments are made, payments for such shipments shall become due in accordance
with the above terms upon submission of invoices. If, at the request of Buyer, shipment is postponed
for more than thirty (30) days, payment will become due thirty days after notice to Buyer that Products
are ready for shipment. Any unpaid due amounts will be subject to interest at one decimal five percent (1.5%) per month, or, if less, the maximum rate allowed by law.
Delivery and Shipment: Shipment dates are estimates only. Failure to deliver by a specified date
shall neither entitle Buyer to any compensation nor impose any liability on AB. AB reserves the right
to ship and bill ten percent more or less than the exact quantity specified on the face hereof. All shipments will be made Ex Works as per Incoterms 2000 from AB’s place of shipment. In the absence of
specific instructions, AB will select the carrier. Claims against AB for shortages must be made in writing within ten (10) days after the arrival of the shipment. AB is not required to notify Buyer of the shipment. Buyer shall pay all freight charges, insurance and other shipping expenses. Freight charges,
insurance and other shipping expenses itemized in advance of actual shipment, if any, are estimates
only that are calculated on the basis of standard tariffs and may not reflect actual costs. Buyer must
pay actual costs.
Purchase Order Changes and Cancellations: Purchase orders for standard AB Products may not
be canceled within sixty (60) days of the original shipping date. Purchase orders for non-standard AB
Products are non-cancelable and non-returnable. All schedule changes must be requested at least
thirty (30) days prior to original shipping date. Maximum schedule change “push-out” shall be no
more than thirty (30) days from original shipping date. AB may terminate or cancel this order, in whole
or in part, at any time prior to the completion of performance by written notice to Buyer without incur-
AB08X5 Real-Time Clock Family
Date of Issue: October 16, 2014
3.0 x 3.0 mm
Page 32 of 33
Abracon Drawing #453567
Revision: C
ring any liability to Buyer for breach of contract or otherwise. AB reserves the right to allocate Products in its sole discretion among Buyer and other potential buyers, or defer or delay the shipment of
any Product, which is in short supply due to any reason.
6. Title and Risk of Loss: AB’s responsibility for any loss or damage ends, and title passes, when
Products are delivered Ex Works as per Incoterms 2000 at AB’s designated shipping location to carrier, to Buyer or to Buyer’s agent, whichever occurs first.
7. Packing: Packaging shall be AB’s standard shipping materials or as specified on the face hereof.
Any cost of non-standard packaging and handling requested by Buyer shall be abided by AB provided
Buyer gives reasonable prior notice and agrees in writing to pay additional costs.
8. Security Interest: Buyer hereby grants AB a purchase money security interest in the Products sold
and in the proceeds of resale of such Products until such time as Buyer has paid all charges. AB
retains all right and remedies available to AB under the Uniform Commercial Code.
9. Specifications: Specifications for each Product are the specifications specified in the published datasheets of such Product, as of the date of AB’s quotation (the “Specifications”). Except as otherwise
agreed, AB reserves the right to modify the Specifications at any time without adversely affecting the
functionality.
10. Acceptance: Unless Buyer notifies AB in writing within ten (10) days from the date of receipt of Products that the Products fail to conform to the Specifications, the Products will be deemed accepted by
Buyer. No such claim of non-conformity shall be valid if (i) the Products have been altered, modified
or damaged by Buyer, (ii) the rejection notice fails to explain the non-conformance in reasonable detail
and is not accompanied by a test report evidencing the non-conformity, or (iii) rejected Products are
not returned to AB within thirty (30) days of rejection; provided, that no Product returns may be made
without a return material authorization issued by AB.
11. Limited Warranties and Disclaimers: AB warrants to Buyer that each Product, for a period of twelve
(12) months from shipment date thereof, will conform to the Specifications and be free from defects in
materials and workmanship. AB’s sole liability and Buyer’s exclusive remedy for Products that fail to
conform to this limited warranty (“Defective Products”) is limited to repair or replacement of such
Defective Products, or issue a credit or rebate of no more than the purchase price of such Defective
Products, at AB’s sole option and election. This warranty shall not apply: (i) if Products have been
damaged or submitted to abnormal conditions (mechanical, electrical, or thermal) during transit, storage, installation, or use; or (ii) if Products are subject to Improper Use (as defined below); or (iii) if the
non-conformance of Products results from misuse, neglect, improper testing, storage, installation,
unauthorized repair, alteration, or excess usage at or beyond the maximum values (temperature limit,
maximum voltage, and other Specification limits) defined by AB; (iv) to any other default not attributable to AB; or (v) removal, alteration, or tampering of the original AB product labeling. This warranty
does not extend to Products or components purchased from entities other than AB or AB’s authorized
distributors or to third-party software or documentation that may be supplied with any Product. In the
event no defect or breach of warranty is discovered by AB upon receipt of any returned Product, such
Product will be returned to Buyer at Buyer’s expense and Buyer will reimburse AB for the transportation charges, labor, and associated charges incurred in testing the allegedly Defective Product. The
above warranty is for Buyer’s benefit only, and is non-transferable. OTHER THAN THE LIMITED
WARRANTY SET FORTH ABOVE, AB MAKES NO WARRANTIES, EXPRESS, STATUTORY,
IMPLIED, OR OTHERWISE AND SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT, TO
THE MAXIMUM EXTENT PERMITTED BY LAW. WITHOUT LIMITING THE GENERALITY OF THE
FOREGOING DISCLAIMERS, AB INCORPORATES BY REFERENCE ANY PRODUCT-SPECIFIC
WARRANTY DISCLAIMERS SET FORTH IN THE PUBLISHED PRODUCT DATASHEETS.
12. Limitation of Liability: AB SHALL HAVE NO LIABILITY FOR LOSS ARISING FROM ANY CLAIM
MADE AGAINST BUYER, OR FOR SPECIAL, INDIRECT, RELIANCE, INCIDENTAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES INCLUDING, WITHOUT LIMITATION, LOSS OF USE, PROFITS,
REVENUES, OR COST OF PROCUREMENT OF SUBSTITUTE GOODS BASED ON ANY BREACH
AB08X5 Real-Time Clock Family
Date of Issue: October 16, 2014
3.0 x 3.0 mm
Page 33 of 33
Abracon Drawing #453567
Revision: C
OR DEFAULT OF AB, HOWEVER CAUSED, AND UNDER ANY THEORY OF LIABILITY. BUYER’S
SOLE REMEDY AND AB’S SOLE AND TOTAL LIABILITY FOR ANY CAUSE OF ACTION,
WHETHER IN CONTRACT (INCLUDING BREACH OF WARRANTY) OR TORT (INCLUDING NEGLIGENCE OR MISREPRESENTATION) OR UNDER STATUTE OR OTHERWISE SHALL BE LIMITED TO AND SHALL NOT EXCEED THE AGGREGATE AMOUNTS PAID BY BUYER TO AB FOR
PRODUCTS WHICH GIVE RISE TO CLAIMS. BUYER SHALL ALWAYS INFORM AB OF ANY
BREACH AND AFFORD AB REASONABLE OPPORTUNITY TO CORRECT ANY BREACH. THE
FOREGOING LIMITATIONS SHALL APPLY REGARDLESS OF WHETHER AB HAS BEEN
ADVISED OF THE POSSIBILITY OF SUCH DAMAGES AND NOTWITHSTANDING THE FAILURE
OF ESSENTIAL PURPOSE OF ANY LIMITED REMEDY.
13. Improper Use: Buyer agrees and covenants that, without AB’s prior written approval, Products will
not be used in life support systems, human implantation, nuclear facilities or systems or any other
application where Product failure could lead to loss of life or catastrophic property damage (each such
use being an “Improper Use”). Buyer will indemnify and hold AB harmless from any loss, cost, or
damage resulting from Improper Use of the Products.
14. Miscellaneous: In the event of any insolvency or inability to pay debts as they become due by Buyer,
or voluntary or involuntary bankruptcy proceeding by or against Buyer, or appointment of a receiver or
assignee for the benefit of creditors of Buyer, AB may elect to cancel any unfulfilled obligations. No
Products or underlying information or technology may be exported or re-exported, directly or indirectly, contrary to US law or US Government export controls. AB will be excused from any obligation
to the extent performance thereof is caused by, or arises in connection with, acts of God, fire, flood,
riots, material shortages, strikes, governmental acts, disasters, earthquakes, inability to obtain labor
or materials through its regular sources, delay in delivery by AB’s supplies or any other reason beyond
the reasonable control of AB. In the event any one or more of the provisions contained herein shall for
any reason be held to be invalid, illegal, or unenforceable in any respect, such invalidity, illegality, or
unenforceability shall not affect any other provision hereof and these terms shall be construed as if
such invalid, illegal, or unenforceable provision had never been contained herein. A waiver of a
breach or default under these terms shall not be a waiver of any subsequent default. Failure of AB to
enforce compliance with any of these terms shall not constitute a waiver of such terms. These terms
are governed by the laws of the State of California without reference to conflict of law principles. The
federal and state courts located within the State of California will have exclusive jurisdiction to adjudicate any dispute arising out of these terms.
END