Specifications

STK17TA8
Document #: 001-52039 Rev. *C Page 2 of 24
Contents
Features ................................................................................1
Description ...........................................................................1
Logic Block Diagram ...........................................................1
Contents ...............................................................................2
Pinouts .................................................................................3
Pin Descriptions ..................................................................3
Absolute Maximum Ratings ...............................................4
DC Electrical Characteristics .............................................4
AC Test Conditions .............................................................5
Capacitance .........................................................................5
RTC DC Characteristics ......................................................6
SRAM READ Cycles #1 and #2 ...........................................7
SRAM WRITE Cycles #1 and #2 .........................................8
AutoStore/Power Up Recall ................................................9
Software-Controlled STORE/RECALL Cycle ...................10
Hardware STORE Cycle ....................................................11
Soft Sequence Commands ...............................................11
MODE Selection .................................................................12
nvSRAM Operation ............................................................13
SRAM READ................................................................ 13
SRAM WRITE .............................................................. 13
AutoStore Operation..................................................... 13
Hardware STORE (HSB) Operation............................. 13
Hardware RECALL (POWER UP)................................ 13
Software STORE...........................................................13
Software RECALL ........................................................ 14
Data Protection............................................................. 14
Noise Considerations ................................................... 14
Preventing AutoStore ................................................... 14
Best Practices .............................................................. 14
Low Average Active Power ...........................................14
RTC Operations .................................................................15
Real Time Clock........................................................... 15
Reading The Clock....................................................... 15
Setting The Clock..........................................................15
Backup Power .............................................................. 15
Stopping And Starting The RTC Oscillator................... 15
Calibrating The Clock................................................... 16
Alarm.............................................................................16
Watchdog Timer........................................................... 16
Power Monitor .............................................................. 16
Interrupts ...................................................................... 17
Interrupt Register.......................................................... 17
Flags Register .............................................................. 17
RTC Register ......................................................................18
Register Map Detail ...........................................................19
Ordering Information .........................................................22
Ordering Codes .................................................................22
Package Diagrams .............................................................23
Document History Page ....................................................24
Sales, Solutions, and Legal Information .........................24
Worldwide Sales and Design Support.......................... 24
Products ....................................................................... 24
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Not Recommended for New Designs