STK22C48

Document Number: 001-51000 Rev. *D

Page 2 of 17

Contents

Pin Configurations ........................................................... 3

Device Operation .............................................................. 4

SRAM Read ....................................................................... 4

SRAM Write ....................................................................... 4

AutoStore Operation ........................................................ 4

AutoStore Inhibit mode .................................................... 4

Hardware STORE (HSB) Operation ................................. 5

Hardware RECALL (Power Up) ........................................ 5

Data Protection ................................................................. 5

Noise Considerations....................................................... 5

Hardware Protect.............................................................. 5

Low Average Active Power.............................................. 5

Preventing Store............................................................... 6

Best Practices................................................................... 6

Maximum Ratings ............................................................. 7

Operating Range ............................................................... 7

DC Electrical Characteristics .......................................... 7

Data Retention and Endurance ....................................... 7

Capacitance ...................................................................... 8

Thermal Resistance .......................................................... 8

AC Test Conditions .......................................................... 8

AC Switching Characteristics ......................................... 9

SRAM Read Cycle ...................................................... 9

Switching Waveforms ...................................................... 9

SRAM Write Cycle ..................................................... 10

AutoStore or Power Up RECALL .................................. 11

Switching Waveform ...................................................... 11

Hardware STORE Cycle ................................................. 12

Switching Waveform ...................................................... 12

Ordering Information ...................................................... 13

Ordering Code Definitions ......................................... 13

Package Diagrams .......................................................... 14

Document Conventions ................................................. 15

Acronyms ................................................................. 15

Units of Measure ....................................................... 15

Document History Page ................................................. 16

Sales, Solutions, and Legal Information ...................... 17

Worldwide Sales and Design Support ....................... 17

Products .................................................................... 17

PSoC Solutions ......................................................... 17

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