STK15C88_11 CYPRESS [Cypress Semiconductor], STK15C88_11 Datasheet
STK15C88_11
Related parts for STK15C88_11
STK15C88_11 Summary of contents
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... QuantumTrap cell. Data transfers from the SRAM to the nonvolatile elements (the STORE operation) takes place automatically at power down. On power up, data is restored to the SRAM (the RECALL operation) from the nonvolatile memory. Both the STORE and RECALL operations are also available under software control. ...
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Contents Pin Configurations ........................................................... 3 Device Operation .............................................................. 4 SRAM Read ....................................................................... 4 SRAM Write ....................................................................... 4 AutoStore Operation ........................................................ 4 Hardware RECALL (Power Up) ........................................ 4 Software STORE ............................................................... 4 Software RECALL ............................................................. 4 Hardware Protect .............................................................. 5 Noise ...
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Pin Configurations Table 1. Pin Definitions - 28-pin SOIC Pin Name Alt I/O Type A –A Input Address Inputs. Used to select one of the 32,768 bytes of the nvSRAM -DQ Input or Bidirectional Data I/O lines. ...
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... WE goes READ and WRITE operation. HZWE Software RECALL Data is transferred from the nonvolatile memory to the SRAM by a software address sequence. A software RECALL cycle is initiated with a sequence of READ operations in a manner similar down to the software STORE initiation. To initiate the RECALL cycle, ...
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... When V <V , all externally initiated STORE CAP SWITCH operations and SRAM WRITEs are inhibited. Noise Considerations The STK15C88 is a high speed memory. It must have a high frequency bypass capacitor of approximately 0.1 µF connected between V and V using leads and traces that are as short CC SS, as possible ...
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Table 2. Software STORE/RECALL Mode Selection Notes 1. The six consecutive addresses must be in the order listed. WE must be high during all six consecutive CE controlled cycles to enable a nonvolatile cycle. ...
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Maximum Ratings Exceeding maximum ratings may shorten the useful life of the device. These user guidelines are not tested. Storage Temperature ............................... –65 C to +150 C Temperature under bias............................ –55 C to +125 C Supply Voltage on V Relative ...
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Data Retention and Endurance Parameter DATA Data Retention R NV Nonvolatile STORE Operations C Capacitance In the following table, the capacitance parameters are listed. Parameter Description C Input Capacitance IN C Output Capacitance OUT Thermal Resistance In the following table, ...
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AC Switching Characteristics SRAM Read Cycle Parameter Cypress Alt Parameter t t Chip Enable Access Time ACE ELQV [ Read Cycle Time RC AVAV, ELEH [ Address Access Time AA AVQV t t Output Enable ...
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SRAM Write Cycle Parameter Cypress Alt Parameter AVAV PWE WLWH, WLEH SCE ELWH, ELEH DVWH, DVEH WHDX, EHDX AVWH, ...
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AutoStore or Power Up RECALL Parameter Alt [10 Power up RECALL Duration HRECALL RESTORE [ STORE Cycle Duration STORE HLHZ V Low Voltage Reset Level RESET V Low Voltage Trigger Level SWITCH Switching Waveforms Note 10. ...
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Software Controlled STORE/RECALL Cycle The software controlled STORE/RECALL cycle follows. Parameter Alt t t STORE/RECALL Initiation Cycle Time RC AVAV [11 Address Setup Time SA AVEL [11 Clock Pulse Width CW ELEH [7, 11 ...
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Ordering Information These parts are not recommended for new designs. They are in production to support ongoing production programs only. Speed Ordering Code (ns) 25 STK15C88-NF25ITR STK15C88-NF25I STK15C88-SF25ITR STK15C88-SF25I 45 STK15C88-NF45TR STK15C88-NF45 STK15C88-NF45ITR STK15C88-NF45I STK15C88-SF45ITR STK15C88-SF45I All parts are Pb-free. ...
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Package Diagrams Document Number: 001-50593 Rev. *C Figure 11. 28-pin (300 mil) SOIC, 51-85026 STK15C88 51-85026 *F Page [+] Feedback ...
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Package Diagrams (continued) Document Number: 001-50593 Rev. *C Figure 12. 28-pin (330 mil) SOIC, 51-85058 STK15C88 51-85058 *B Page [+] Feedback ...
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Document History Page Document Title: STK15C88 256-Kbit (32 K × 8) PowerStore nvSRAM Document Number: 001-50593 Orig. of Rev. ECN No. Change ** 2625096 GVCH/PYRS *A 2826441 GVCH *B 3052511 GVCH *C 3221180 GVCH Document Number: 001-50593 Rev. *C Submission ...
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