PRELIMINARY

CY14MB064J1A/CY14MB064J2A

CY14ME064J1A/CY14ME064J2A

Document Number: 001-70393 Rev. *E

Page 2 of 28

Contents

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

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

I2C Interface ...................................................................... 4

Protocol Overview ....................................................... 4

I2C Protocol – Data Transfer ....................................... 4

Data Validity ................................................................ 5

START Condition (S) ................................................... 5

STOP Condition (P) ..................................................... 5

Repeated START (Sr) ................................................. 5

Byte Format ................................................................. 5

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

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

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

Write Protection (WP) .................................................. 9

AutoStore Operation .................................................... 9

Write Operation ........................................................... 9

Read Operation ......................................................... 10

Memory Slave Access ............................................... 10

Control Registers Slave ............................................. 14

Serial Number ................................................................. 16

Serial Number Write .................................................. 16

Serial Number Lock ................................................... 16

Serial Number Read .................................................. 16

Device ID ......................................................................... 17

Executing Commands Using Command Register ....... 17

Maximum Ratings ........................................................... 18

Operating Range ............................................................. 18

DC Electrical Characteristics ........................................ 18

Data Retention and Endurance ..................................... 19

Thermal Resistance ........................................................ 19

AC Test Loads and Waveforms ..................................... 20

AC Test Conditions ........................................................ 20

AC Switching Characteristics ....................................... 21

Switching Waveforms .................................................... 21

nvSRAM Specifications ................................................. 22

Switching Waveforms – nvSRAM Specifications ........ 22

Software Controlled STORE/RECALL Cycles .............. 23

Switching Waveforms –

Software Controlled STORE/RECALL Cycles .............. 23

Ordering Information ...................................................... 24

Ordering Code Definitions ......................................... 24

Package Diagrams .......................................................... 25

Acronyms ........................................................................ 26

Document Conventions ................................................. 26

Units of Measure ....................................................... 26

Document History Page ................................................. 27

Sales, Solutions, and Legal Information ...................... 28

Worldwide Sales and Design Support ....................... 28

Products .................................................................... 28

PSoC Solutions ......................................................... 28