AB0801-T3 ABRACON, AB0801-T3 Datasheet - Page 4

• Manufacturer Part Number: AB0801-T3
• Description: Real Time Clock Interface I2C HH
• Manufacturer: ABRACON

Specifications of AB0801-T3

• Rohs: yes
• Function: Clock, Calendar, Alarm
• Rtc Bus Interface: I2C
• Time Format: HH
• Supply Voltage - Max: 3.6 V
• Supply Voltage - Min: 1.7 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Package / Case: QFN-16

3. AB08XX Example Applications
3.1
The most common AB08XX application is a battery backed up RTC, which maintains time and may hold data in RAM. The
AB08XX is normally powered from a system power supply, which may be a larger battery. The AB08XX is continuously
charging a supercapacitor or rechargeable battery via the internal trickle charger. When the main power supply goes away,
the AB08XX automatically switches to the VBAT supply and maintains time and RAM data at very low battery supply
currents.
3.2
The flexible inputs of the AB08XX 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.
Date of Issue: Sept. 10
Battery Backed Up RTC
RTC with Interrupt Aggregation
Page (3) of (12)
Supercap
Battery/
Digital Inputs
Analog Level
th
, 2012
XO
XI
WDI
EXTI
VBAT
XO
XI
VBAT
Real Time Clock Module
VSS
AB08XX
AM08XX
FOUT/nIRQ
Abracon Drawing #
AB08XX
FOUT/nIRQ
AM08XX
System Power
AB08XX Series
System Power
3.0 x 3.0 mm
VCC
VSS
VCC
I2C/SPI
I2C/SPI
VSS
IRQ
VSS
IRQ
MCU
VCC
MCU
VCC
Revision #: Initial Release
ESD Sensitive