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CY14B104M-ZSP45XI Datasheet(PDF) 2 Page - Cypress Semiconductor

Part # CY14B104M-ZSP45XI
Description  4-Mbit (512 K 횞 8/256 K 횞 16) nvSRAM with Real Time Clock
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Manufacturer  CYPRESS [Cypress Semiconductor]
Direct Link  http://www.cypress.com
Logo CYPRESS - Cypress Semiconductor

CY14B104M-ZSP45XI Datasheet(HTML) 2 Page - Cypress Semiconductor

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CY14B104K, CY14B104M
Document Number: 001-07103 Rev. *Z
Page 2 of 34
Contents
Pin Definitions .................................................................. 3
Device Operation .............................................................. 4
SRAM Read ................................................................ 4
SRAM Write ................................................................. 4
AutoStore Operation .................................................... 4
Hardware STORE (HSB) Operation ............................ 5
Hardware RECALL (Power-Up) .................................. 5
Software STORE ......................................................... 5
Software RECALL ....................................................... 5
Preventing AutoStore .................................................. 6
Data Protection ............................................................ 7
Real Time Clock Operation .............................................. 7
nvTIME Operation ....................................................... 7
Clock Operations ......................................................... 7
Reading the Clock ....................................................... 7
Setting the Clock ......................................................... 7
Backup Power ............................................................. 7
Stopping and Starting the Oscillator ............................ 8
Calibrating the Clock ................................................... 8
Alarm ........................................................................... 8
Watchdog Timer .......................................................... 8
Power Monitor ............................................................. 9
Interrupts ..................................................................... 9
Flags Register ........................................................... 10
Maximum Ratings ........................................................... 15
Operating Range ............................................................. 15
DC Electrical Characteristics ........................................ 15
Data Retention and Endurance ..................................... 16
Capacitance .................................................................... 16
Thermal Resistance ........................................................ 16
AC Test Loads ................................................................ 17
AC Test Conditions ........................................................ 17
RTC Characteristics ....................................................... 17
AC Switching Characteristics ....................................... 18
SRAM Read Cycle .................................................... 18
SRAM Write Cycle ..................................................... 18
AutoStore/Power-Up RECALL ....................................... 21
Switching Waveforms –
AutoStore/Power-up RECALL ....................................... 21
Software Controlled STORE and RECALL Cycle ........ 22
Hardware STORE Cycle ................................................. 23
Truth Table For SRAM Operations ................................ 24
Ordering Information ...................................................... 25
Ordering Code Definitions ......................................... 25
Package Diagrams .......................................................... 26
Acronyms ........................................................................ 28
Document Conventions ................................................. 28
Units of Measure ....................................................... 28
Document History Page ................................................. 29
Sales, Solutions, and Legal Information ...................... 34
Worldwide Sales and Design Support ....................... 34
Products .................................................................... 34
PSoC Solutions ......................................................... 34


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