STK14C88-C45I Cypress Semiconductor Corp, STK14C88-C45I Datasheet
STK14C88-C45I
Specifications of STK14C88-C45I
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STK14C88-C45I Summary of contents
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... Cypress Semiconductor Corporation Document Number: 001-52038 Rev. *B 32Kx8 AutoStore nvSRAM Description The Cypress STK14C88 is a 256 Kb fast static RAM with a nonvolatile Quantum Trap storage element included with each memory cell. The SRAM provides the fast access and cycle times, ease of use, and unlimited read and write endurance of a normal SRAM. ...
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... AutoStore INHIBIT Mode................................................... 11 HSB Operation ................................................................... 11 Best Practices.................................................................... 12 Preventing STORES .......................................................... 12 Hardware Protect............................................................... 12 Low Average Active Power............................................... 12 Software STORE/RECALL Mode Selection ..................... 14 Software-Controlled STORE/RECALL Cycle................... 14 Ordering Information......................................................... 15 Document History Page .................................................... 19 Sales, Solutions, and Legal Information ......................... 19 Worldwide Sales and Design Support.......................... 19 Products ....................................................................... 19 STK14C88 Page [+] Feedback [+] Feedback [+] Feedback ...
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... Power Supply AutoStore Capacitor: Supplies power to nvSRAM during power loss to store data from SRAM CAP to nonvolatile storage elements. V Power Supply Ground Connect Unlabeled pins have no internal connections. Document Number: 001-52038 Rev. *B Figure 2. Pin Diagram - 32-Pin 450 Mil LCC V CC HSB Description STK14C88 (TOP Page [+] Feedback [+] Feedback [+] Feedback ...
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... V + 0.5 2 – .5 0.8 V – 2.4 2.4 0.4 0 -40/-55 85/125 ). STORE if that is where the power supply connection is made STK14C88 Unit Notes AVAV AVAV AVAV 3 mA All Inputs Don’t Care max W ≥ – 0.2V) CC All Others Cycling, CMOS Levels ...
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... These parameters are guaranteed but not tested. Document Number: 001-52038 Rev. *B Figure 3 Figure 3. AC Output Loading 5.0V 480 Ohms OUTPUT 30 pF 255 Ohms INCLUDING SCOPE AND FIXTURE Test Conditions T = 25° MHz, A STK14C88 Max Unit Conditions Δ Δ Page [+] Feedback [+] Feedback [+] Feedback ...
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... Figure 5. SRAM Read Cycle 2: E and G Controlled Notes 6. W and HSB must be high during SRAM read cycles. and W ≥ V < 7. I/O state assumes E and device is continuously selected Measured ± 200 mV from steady state output voltage. Document Number: 001-52038 Rev. *B STK14C88-25 STK14C88-35 STK14C88-45 Parameter Min Max ...
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... AVEL E W DATA IN DATA OUT Notes low when E goes low, the outputs remain in the high impedance state. ≥ 10 must be V during address transitions. IH 11. HSB must be high during SRAM write cycles. Document Number: 001-52038 Rev. *B STK14C88-25 STK14C88-35 STK14C88-45 Parameter Min Max ...
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... Figure 8. Hardware STORE Cycle 25 t HLHX 22 t STORE 27 t HLBL 23 t DELAY STK14C88 I/O Power Notes Output High Z Standby Output Data Active Input Data Active Output High STK14C88 Units Notes Min Max 10 ms μs 1 700 ns 13 300 RECOVER HIGH IMPEDANCE DATA VALID Page [+] Feedback ...
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... NO RECALL (V DID NOT GO (V DID NOT BELOW V ) BELOW V ) RESET RESET . SWITCH . If an SRAM write has not taken place since the last nonvolatile cycle, HSB is released and no STORE SWITCH STK14C88 STK14C88 Unit Max μs 550 10 ms 300 ns μs 1 4.0 4 STORE ...
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... RESET again exceeds the sense voltage of V SWITCH is automatically initiated and takes t RESTORE If the STK14C88 write state at the end of power up RECALL, the SRAM data will be corrupted. To avoid this KOhm resistor should be connected either between W and system V or between E and system Document Number: 001-52038 Rev ...
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... To operate in this mode, the HSB pin should be connected together to the HSB pins from the other STK14C88s. An external pull up resistor required because HSB acts as an open drain pull down. The V from the other STK14C88 parts can be tied together and share a single capacitor ...
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... STOREs are only initiated by explicit request using either the software sequence or the HSB pin. Document Number: 001-52038 Rev. *B Low Average Active Power The STK14C88 draws significantly less current when it is cycled at times longer than 50 ns. between I CC consumption is shown for both CMOS and TTL input levels (commercial temperature range, V chip enable) ...
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... Commercial and Industrial Ordering Information STK14C88 - Military Ordering Information STK14C88 - Document Number: 001-52038 Rev. *B Temperature Range: Blank = Commercial (0 to 70° Industrial (-40 to 85°C) Lead Finish F = 100% Sn (Matte Tin) Package N = Plastic 32-pin 300 mil SOIC C = Ceramic 32-pin 300 mil CDIP L = Ceramic 32-pad LCC ...
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... Notes 17. The six consecutive addresses must be in the order listed. W must be high during all six consecutive E controlled cycles to enable a nonvolatile cycle. 18. While there are 15 addresses on the STK14C88, only the lower 14 are used to control software modes. 19. I/O state assumes G < Activation of nonvolatile cycles does not depend on state of G. ...
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... STK14C88-NF45I 5V 32Kx8 AutoStore nvSRAM SOIC32-300 STK14C88-NF25ITR 5V 32Kx8 AutoStore nvSRAM SOIC32-300 STK14C88-NF35ITR 5V 32Kx8 AutoStore nvSRAM SOIC32-300 STK14C88-NF45ITR 5V 32Kx8 AutoStore nvSRAM SOIC32-300 STK14C88-C45I 5V 32Kx8 AutoStore nvSRAM CDIP32-300 STK14C88-5L35M 5V 32Kx8 AutoStore nvSRAM LCC32-300 STK14C88-5L45M 5V 32Kx8 AutoStore nvSRAM LCC32-300 STK14C88-5C35M 5V 32Kx8 AutoStore nvSRAM CDIP32-300 STK14C88-5C45M ...
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... Document Number: 001-52038 Rev. *B PIN DIMENSIONS IN INCHES[MM] 0.292[7.416] 0.299[7.594] 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] STK14C88 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 Page [+] Feedback [+] Feedback [+] Feedback ...
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... Package Diagrams (continued) Figure 16. 32-Pin 300 mil Side Braze DIL (001-51694) Document Number: 001-52038 Rev. *B STK14C88 001-51694 ** Page [+] Feedback [+] Feedback [+] Feedback ...
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... Figure 17. 32-Pin 450 mil Ceramic LCC (51-80068) .045 .055 .045 .055 Document Number: 001-52038 Rev. *B PIN 1 DIMENSIONS IN INCHES .022 .028 .045 .055 .009 R. .064 32 PLACES .090 .540 .560 .442 .458 STK14C88 MIN. MAX. .060 .080 51-80068 *A Page [+] Feedback [+] Feedback [+] Feedback ...
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... Document History Page Document Title: STK14C88 32Kx8 AutoStore nvSRAM Document Number: 001-52038 Rev. ECN No. Orig. of Change ** 2668632 GVCH *A 2718242 GVCH *B 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 ...