CY15B128J

Document Number: 001-90872 Rev. *G

Page 2 of 19

Contents

Pinout ................................................................................ 3

Pin Definitions .................................................................. 3

Functional Overview ........................................................ 4

Memory Architecture ........................................................ 4

Two-wire Interface ............................................................ 4

STOP Condition (P) ..................................................... 4

START Condition (S) ................................................... 4

Data/Address Transfer ................................................ 5

Acknowledge / No-acknowledge ................................. 5

High Speed Mode (Hs-mode) ...................................... 6

Slave Device Address ................................................. 6

Addressing Overview .................................................. 6

Data Transfer .............................................................. 6

Memory Operation ............................................................ 6

Write Operation ........................................................... 6

Read Operation ........................................................... 7

Sleep Mode ................................................................. 9

Device ID ......................................................................... 10

Maximum Ratings ........................................................... 11

Operating Range ............................................................. 11

DC Electrical Characteristics ........................................ 11

Data Retention and Endurance ..................................... 12

Capacitance .................................................................... 12

Thermal Resistance ........................................................ 12

AC Test Loads and Waveforms ..................................... 12

AC Test Conditions ........................................................ 12

AC Switching Characteristics ....................................... 13

Power Cycle Timing ....................................................... 14

Ordering Information ...................................................... 15

Ordering Code Definitions ......................................... 15

Package Diagram ............................................................ 16

Acronyms ........................................................................ 17

Document Conventions ................................................. 17

Units of Measure ....................................................... 17

Document History Page ................................................. 18

Sales, Solutions, and Legal Information ...................... 19

Worldwide Sales and Design Support ....................... 19

Products .................................................................... 19

PSoC® Solutions ...................................................... 19

Cypress Developer Community ................................. 19

Technical Support ..................................................... 19