STK14CA8-N35I Cypress Semiconductor Corp, STK14CA8-N35I Datasheet
STK14CA8-N35I
Specifications of STK14CA8-N35I
Related parts for STK14CA8-N35I
STK14CA8-N35I Summary of contents
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... Document Number: 001-51592 Rev. *C 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 STORE (HSB) Operation............................ 13 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 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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... AutoStore Capacitor: Supplies power to nvSRAM during power loss to store data from SRAM to CAP nonvolatile storage elements. V Power Supply Ground Connect Unlabeled pins have no internal connections. Note 2. 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 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. *C 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 ...
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... Device is continuously selected with E and G both low 6. Measured ± 200mV from steady state output voltage. 7. HSB must remain high during READ and WRITE cycles Document Number: 001-51592 Rev. *C [1] STK14CA8-25 Parameter Min Max AVAV AVQV t AXQX DATA VALID STK14CA8 STK14CA8-35 STK14CA8-45 Units Min Max Min Max [ ...
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... AVAV 14 t ELWH 17 t AVWH 13 t WLWH 15 t DVWH DATA VALID 20 t WLQZ HIGH IMPEDANCE 12 t AVAV 14 t ELEH 17 t AVEH 13 t WLEH 15 t DVEH DATA VALID HIGH IMPEDANCE STK14CA8 STK14CA8-35 STK14CA8-45 Units Min Max Min Max [8, WHAX 16 t WHDX 21 t WHQX ...
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... CC 11 SRAM WRITE has not taken place since the last nonvolatile cycle, no STORE takes place 12. Industrial Grade devices require maximum 15 ms. Document Number: 001-51592 Rev. *C Parameter Rise Time Figure 10. AutoStore/POWER UP RECALL SWITCH STK14CA8 STK14CA8 Units Notes Min Max 12.5 ms 11, 12 2.65 V μ ...
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... 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. *C [1] STK14CA8-25 [13,14] Min Max STK14CA8 STK14CA8-35 STK14CA8-45 Units Notes Min Max Min Max μs 50 ...
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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. *C 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 ...
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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. 19. While there are 17 addresses on the STK14CA8, only the lower 16 are used to control software modes 20. 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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... Ordering Information STK14CA8 ITR Ordering Codes These parts are not recommended for new designs. Part Number STK14CA8-NF25 3V 128Kx8 AutoStore nvSRAM SOP32-300 STK14CA8-NF35 3V 128Kx8 AutoStore nvSRAM SOP32-300 STK14CA8-NF45 3V 128Kx8 AutoStore nvSRAM SOP32-300 STK14CA8-NF25TR 3V 128Kx8 AutoStore nvSRAM SOP32-300 STK14CA8-NF35TR 3V 128Kx8 AutoStore nvSRAM SOP32-300 ...
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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 *D Page [+] 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 *B 2895330 GVCH *C 2902517 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 ...