Cypress CY14B108M Document History, Sales, Solutions, and Legal Information, New Data Sheet, Usb

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PRELIMINARY

Document History Page

CY14B108K, CY14B108M

Document Title: CY14B108K/CY14B108M 8 Mbit (1024K x 8/512K x 16) nvSRAM with Real Time Clock

Document Number: 001-47378

Rev.

ECN No.

Orig. of

Submission

 

Description of Change

Change

Date

 

 

 

 

 

 

 

 

 

 

 

**

2681767

GVCH/PYRS

04/01/09

New Data Sheet

 

 

 

 

 

 

 

Sales, Solutions, and Legal Information

Worldwide Sales and Design Support

Cypress maintains a worldwide network of offices, solution centers, manufacturer’s representatives, and distributors. To find the office closest to you, visit us at cypress.com/sales.

Products

 

PSoC Solutions

 

PSoC

psoc.cypress.com

General

psoc.cypress.com/solutions

Clocks & Buffers

clocks.cypress.com

Low Power/Low Voltage

psoc.cypress.com/low-power

Wireless

wireless.cypress.com

Precision Analog

psoc.cypress.com/precision-analog

LCD Drive

psoc.cypress.com/lcd-drive

Memories

memory.cypress.com

CAN 2.0b

psoc.cypress.com/can

Image Sensors

image.cypress.com

USB

psoc.cypress.com/usb

 

 

© Cypress Semiconductor Corporation, 2009. The information contained herein is subject to change without notice. Cypress Semiconductor Corporation assumes no responsibility for the use of any circuitry other than circuitry embodied in a Cypress product. Nor does it convey or imply any license under patent or other rights. Cypress products are not warranted nor intended to be used for medical, life support, life saving, critical control or safety applications, unless pursuant to an express written agreement with Cypress. Furthermore, Cypress does not authorize its products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against all charges.

Any Source Code (software and/or firmware) is owned by Cypress Semiconductor Corporation (Cypress) and is protected by and subject to worldwide patent protection (United States and foreign), United States copyright laws and international treaty provisions. Cypress hereby grants to licensee a personal, non-exclusive, non-transferable license to copy, use, modify, create derivative works of, and compile the Cypress Source Code and derivative works for the sole purpose of creating custom software and or firmware in support of licensee product to be used only in conjunction with a Cypress integrated circuit as specified in the applicable agreement. Any reproduction, modification, translation, compilation, or representation of this Source Code except as specified above is prohibited without the express written permission of Cypress.

Disclaimer: CYPRESS MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARD TO THIS MATERIAL, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Cypress reserves the right to make changes without further notice to the materials described herein. Cypress does not assume any liability arising out of the application or use of any product or circuit described herein. Cypress does not authorize its products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress’ product in a life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against all charges.

Use may be limited by and subject to the applicable Cypress software license agreement.

Document #: 001-47378 Rev. **

Revised April 01, 2009

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AutoStore and QuantumTrap are registered trademarks of Cypress Semiconductor Corporation. All products and company names mentioned in this document are the trademarks of their respective holders.

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Contents Logic Block Diagram1, 2 FeaturesFunctional Description Cypress Semiconductor CorporationPinouts Sram Read Device OperationSram Write AutoStore OperationHardware Store HSB Operation Hardware Recall Power UpSoftware Recall Software StoreA15 A05 Mode Power Mode SelectionPreventing AutoStore StoreNoise Considerations Data Protection Best PracticesReal Time Clock Operation Calibrating the Clock AlarmWatchdog Timer Interrupt Register Power MonitorInterrupts Flags RegisterPF Power Fail Flag WDF Watchdog Timer FlagPFE Power Fail Enable AF Alarm FlagWDF Oscf OscenWDS For the register is 0 to 0xFFFF9 0x7FFF9 Time Keeping SecondsTime-base 0xFFFF5 0x7FFF5 Alarm DayWrite only. Reading it always returns a 0xFFFF6 0x7FFF6 Interrupt Status/ControlCenturies 0xFFFF0 0x7FFF0 Flags 0xFFFF2 0x7FFF2 Alarm SecondsWatchdog This condition and write 0 to clear this flagRange Ambient Temperature DC Electrical CharacteristicsMaximum Ratings Operating RangeCapacitance Data Retention and EnduranceThermal Resistance AC Test ConditionsHot Temperature 85 oC RTC Backup CurrentRTC Battery Pin Voltage RTC Capacitor Pin Voltage TOCS RTC Oscillator Time to StartSwitching Waveforms AC Switching CharacteristicsParameters Sram Read Cycle Sram Write CycleStandby Active Data Output High Impedance Output Data ValidAddress Address Valid Data Input Input Data ValidInput Data Valid High Impedance Data Input Data OutputNot applicable for RTC register writes Data Input Input Data Valid High Impedance Data OutputParameters Description 20 ns 25 ns 45 ns Unit Min Max AutoStore/Power Up RecallSoftware Controlled Store and Recall Cycle Hardware Store Cycle To Output Active Time when write latch not setDescription 20 ns 25 ns 45 ns Unit Min Hardware Store Pulse WidthFor x16 Configuration For x8 ConfigurationInputs and Outputs Mode Power Truth Table For Sram OperationsNvsram Part Numbering Nomenclature CY14 B 108 K ZS P 20 X C TZS Tsop Ordering Information Pin Tsop II Package Diagrams51-85160 Worldwide Sales and Design Support Products PSoC Solutions Sales, Solutions, and Legal InformationNew Data Sheet Document History