STK14CA8-RF35 Cypress Semiconductor Corp, STK14CA8-RF35 Datasheet
STK14CA8-RF35
Specifications of STK14CA8-RF35
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STK14CA8-RF35 Summary of contents
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... Document Number: 001-51592 Rev. *A 128Kx8 AutoStore nvSRAM Description The Cypress STK14CA8 fast static RAM with a nonvol- atile QuantumTrap storage element included with each memory cell. This SRAM provides fast access and cycle times, ease of use, and unlimited read and write endurance of a normal SRAM. ...
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... Hardware RECALL (Power Up)................................... 13 Software STORE......................................................... 14 Software RECALL ....................................................... 14 Data Protection............................................................ 14 Noise Considerations .................................................. 14 Best Practices ............................................................. 14 Low Average Active Power ......................................... 15 Preventing AutoStore....................................................... 15 STK14CA8 ITR ...................................................... 16 Package Diagrams............................................................ 17 Document History Page .................................................... 18 Sales, Solutions, and Legal Information ........................ 18 Worldwide Sales and Design Support......................... 18 Products ...................................................................... 18 STK14CA8 Page [+] Feedback ...
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... CAP nonvolatile storage elements. V Power Supply Ground Connect Unlabeled pins have no internal connections. Note 1. See Package Diagrams on page 16 for detailed package size specifications. Document Number: 001-51592 Rev HSB Figure 3. Relative PCB Area Usage Description STK14CA8 Figure 2. 32-Pin SOIC V 1 CAP HSB ...
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... Years 2.4 V, this parameter is characterized but not tested. OH STK14CA8 Absolute may cause permanent damage to the device. Notes AVAV AVAV AVAV Dependent on output loading and cycle rate. Values obtained without output loads. ...
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... Document Number: 001-51592 Rev. *A and Figure 5 Conditions Δ Δ Figure 4. AC Output Loading 3.0V 577 Ohms 30 pF 789 Ohms INCLUDING SCOPE AND FIXTURE ( WLQZ WHQZ GLQX GHQZ 3.0V 577 Ohms OUTPUT 5 pF 789 Ohms INCLUDING SCOPE AND FIXTURE STK14CA8 ) Page [+] Feedback [+] Feedback [+] Feedback ...
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... W must be high during SRAM READ cycles. 4. Device is continuously selected with E and G both low 5. Measured ± 200mV from steady state output voltage. 6. HSB must remain high during READ and WRITE cycles Document Number: 001-51592 Rev. *A STK14CA8-25 STK14CA8-35 STK14CA8-45 Parameter Min Max 25 ...
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... Figure 9. SRAM WRITE Cycle #2: E Controlled ADDRESS 18 t AVEL E W DATA IN DATA OUT Notes low when E goes low, the outputs remain in the high impedance state must be ≥ during address transitions. IH Document Number: 001-51592 Rev. *A STK14CA8-25 STK14CA8-35 STK14CA8-45 Parameter Min Max AVAV ...
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... CC 10 SRAM WRITE has not taken place since the last nonvolatile cycle, no STORE takes place 11. Industrial Grade devices require maximum 15 ms. Document Number: 001-51592 Rev. *A Parameter Rise Time Figure 10. AutoStore/POWER UP RECALL SWITCH STK14CA8 STK14CA8 Units Notes Min Max 12.5 ms 10, 11 2.65 V μ ...
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... The software sequence is clocked on the falling edge of E controlled READs or G controlled READs 13. The six consecutive addresses must be read in the order listed in the Software STORE/RECALL Mode Selection Table. W must be high during all six consecutive cycles. Document Number: 001-51592 Rev. *A STK14CA8-35 STK14CA8-35 STK14CA8-45 [12,13] Parameter ...
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... Commands such as Store and Recall lock out I/O until operation is complete which further increases this time. See specific command. Document Number: 001-51592 Rev. *A Parameter Figure 13. Hardware STORE Cycle 23 31 Parameter Figure 14. Software Sequence Commands 33 to allow read/write cycles to complete. DELAY STK14CA8 STK14CA8 Units Notes Min Max μ STK14CA8 Units Notes Min Max μ Page [+] Feedback [+] Feedback [+] Feedback ...
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... The six consecutive addresses must be in the order listed. W must be high during all six consecutive cycles to enable a nonvolatile cycle. 18. While there are 17 addresses on the STK14CA8, only the lower 16 are used to control software modes 19. I/O state depends on the state of G. The I/O table shown assumes G low Document Number: 001-51592 Rev ...
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... RECALL operations from the nonvolatile cells and up to 200K STORE operations. SRAM READ The STK14CA8 performs a READ cycle whenever E and G are low while W and HSB are high. The address specified on pins A determine which of the 131,072 data bytes are accessed. ...
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... WRITE operations. The low voltage condition is detected when V < SWITCH If the STK14CA8 WRITE mode (both E and W low) at power up, after a RECALL, or after a STORE, the WRITE is inhibited until a negative transition detected. This protects against inadvertent writes during power up or brown out conditions. Noise Considerations The STK14CA8 is a high speed memory and so must have a high frequency bypass capacitor of approximately 0.1 µ ...
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... Low Average Active Power CMOS technology provides the STK14CA8 with the benefit of power supply current that scales with cycle time. Less current is drawn as the memory cycle time becomes longer than 50 ns. Figure 16 shows the relationship READ/WRITE cycle time. Worst case current consumption is shown for commercial temperature range, V enable at maximum frequency ...
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... STK14CA8-RF25I 3V 128Kx8 AutoStore nvSRAM SSOP48-300 STK14CA8-RF35I 3V 128Kx8 AutoStore nvSRAM SSOP48-300 STK14CA8-RF45I 3V 128Kx8 AutoStore nvSRAM SSOP48-300 STK14CA8-RF25ITR 3V 128Kx8 AutoStore nvSRAM SSOP48-300 STK14CA8-RF35ITR 3V 128Kx8 AutoStore nvSRAM SSOP48-300 STK14CA8-RF45ITR 3V 128Kx8 AutoStore nvSRAM SSOP48-300 Document Number: 001-51592 Rev. *A Packing Option Blank=Tube TR=Tape and Reel Temperature Range ...
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... REFERENCE JEDEC MO-119 0.405[10.287] 0.419[10.642] 32 SEATING PLANE 0.090[2.286] 0.100[2.540] 0.004[0.101] 0.026[0.660] 0.032[0.812] 0.004[0.101] 0.0100[0.254] Figure 18. 48-Pin 300 mil SSOP (51-85061) STK14CA8 MIN. MAX. PART # S32.3 STANDARD PKG. SZ32.3 LEAD FREE PKG. 0.006[0.152] 0.021[0.533] 0.012[0.304] 0.041[1.041] 51-85127 *B 51-85061 *C Page [+] Feedback [+] Feedback ...
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... Document History Page Document Title: STK14CA8 128Kx8 AutoStore nvSRAM Document Number: 001-51592 Orig. of Revision ECN Change ** 2665610 GVCH/PYRS *A 2821358 GVCH 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 ...