STK22C48-NF45ITR Cypress Semiconductor Corp, STK22C48-NF45ITR Datasheet
STK22C48-NF45ITR
Specifications of STK22C48-NF45ITR
Related parts for STK22C48-NF45ITR
STK22C48-NF45ITR Summary of contents
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... Document Number: 001-51000 Rev. *D 16-Kbit (2 K × 8) AutoStore™ nvSRAM Functional Description The Cypress STK22C48 is a fast static RAM with a nonvolatile element in each memory cell. The embedded nonvolatile elements incorporate QuantumTrap technology producing the world’s most reliable nonvolatile memory. The SRAM provides unlimited read and write cycles, while independent nonvolatile data resides in the highly reliable QuantumTrap cell ...
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... AutoStore or Power Up RECALL .................................. 11 Switching Waveform ...................................................... 11 Hardware STORE Cycle ................................................. 12 Switching Waveform ...................................................... 12 Ordering Information ...................................................... 13 Ordering Code Definitions ......................................... 13 Package Diagrams .......................................................... 14 Document Conventions ................................................. 15 Acronyms ................................................................. 15 Units of Measure ....................................................... 15 Document History Page ................................................. 16 Sales, Solutions, and Legal Information ...................... 17 Worldwide Sales and Design Support ....................... 17 Products .................................................................... 17 PSoC Solutions ......................................................... 17 STK22C48 Page [+] Feedback ...
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... Power supply AutoStore capacitor. Supplies power to nvSRAM during power loss to store data from SRAM CAP to nonvolatile elements connect No connect. This pin is not connected to the die. Document Number: 001-51000 Rev. *D Figure 1. Pin Diagram - 28-pin SOIC 28-SOIC Top View 8 21 (Not To Scale Description STK22C48 HSB DQ7 DQ6 DQ5 DQ4 DQ3 Page [+] Feedback ...
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... HZWE If an automatic STORE on power loss is not required, then V is tied to ground and + applied to V 5). This is the AutoStore Inhibit mode, where the AutoStore to function is disabled. If the STK22C48 is operated in this config- CC pin. This stored uration, references to V CAP data sheet. In this mode, STORE operations are triggered with , the part the HSB pin ...
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... Write is inhibited until a negative transition detected. This protects against inadvertent writes during power-up or brown out conditions. Noise Considerations The STK22C48 is a high speed memory. It must have a high frequency bypass capacitor of approximately 0.1 µF connected between possible. As with all high speed CMOS ICs, careful routing of power, ground, and signals reduce circuit noise ...
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... HSB STORE operation occurs only if an SRAM Write is done since the last nonvolatile cycle. After the STORE (If any) completes, the part goes into standby mode, inhibiting all operations until HSB rises. Document Number: 001-51000 Rev. *D device drives HSB LOW for the onset of a STORE. When the STK22C48 is connected for AutoStore operation (system V connected ...
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... HSB OUT = 3 mA OUT Between V pin and Vss rated. 68 µF –10%, +20% CAP nom. Description if that is where the power supply connection is made STK22C48 or HSB .....................–0 Vcc + 0.5 V Ambient Temperature °C to +70 °C 4 5.5 V –40 °C to +85 °C 4 5.5 V Min Max Commercial – ...
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... 3 [5] Test Conditions Test conditions follow standard test methods and procedures for measuring thermal impedance, per EIA / JESD51. Figure 6. AC Test Loads 5.0 V Output 512 Ω STK22C48 Max Unit 28-SOIC 28-SOIC Unit (300 mil) (330 mil) °C/W TBD TBD °C/W TBD TBD R1 963 Ω ...
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... Device is continuously selected with CE and OE both Low. 8. Measured ±200 mV from steady state output voltage. 9. These parameters are guaranteed by design and are not tested. Document Number: 001-51000 Rev Description Min – 25 – – – 0 – 0 – [6, 7] [6] STK22C48 45 ns Unit Max Min Max 25 – – 45 – – – ...
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... Address hold after end of write Write enable to output disable Output active after end of write SCE PWE t SD DATA VALID t HZWE HIGH IMPEDANCE SCE PWE t SD DATA VALID HIGH IMPEDANCE STK22C48 Unit Min Max Min Max 25 – 45 – – 30 – – 30 – – 15 – – ...
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... HSB must be high during SRAM Write cycles. Document Number: 001-51000 Rev. *D Description ) to HSB Low SWITCH Figure 11. AutoStore/Power Up RECALL . SWITCH . If an SRAM Write has not taken place since the last nonvolatile cycle, HSB is released and no store SWITCH STK22C48 STK22C48 Unit Min Max μs – 550 – μs 1 – ...
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... Hardware STORE LOW to STORE busy HLBL Switching Waveform Notes 19. CE and OE low and WE high for output behavior. 20 only applicable after t is complete. DHSB STORE Document Number: 001-51000 Rev. *D Description Figure 12. Hardware STORE Cycle STK22C48 STK22C48 Unit Min Max – 700 ns 15 – ns – 300 ns Page ...
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... Ordering Code Definitions STK22C48 - Ordering Information These parts are not recommended for new designs. They are in production to support ongoing production programs only. Speed (ns) Ordering Code 25 STK22C48-NF25ITR STK22C48-NF25I STK22C48-SF25ITR STK22C48-SF25I 45 STK22C48-NF45TR STK22C48-NF45 All parts are Pb-free. The above table contains Final information. Please contact your local Cypress sales representative for availability of these parts Document Number: 001-51000 Rev ...
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... Package Diagrams Document Number: 001-51000 Rev. *D Figure 13. 28-Pin (300 mil) SOIC (51-85026) Figure 14. 28-Pin (330 mil) SOIC (51-85058) STK22C48 51-85026-*E 51-85026 *F 51-85058 *B 51-85058-*A Page [+] Feedback ...
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... Celsius Hz Hertz kbit 1024 bits KΩ kilo ohms μA micro Amperes mA milli Amperes μF micro Farads MHz mega Hertz μs micro seconds ms milli seconds ns nano seconds pF pico Farads V Volts Ω ohms W Watts Document Number: 001-51000 Rev. *D STK22C48 Page [+] Feedback ...
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... Minor edits. 10/11/2010 Removed inactive parts - STK22C48-NF25, STK22C48-NF25TR, STK22C48-SF25, STK22C48-SF25TR, STK22C48-SF45, STK22C48-SF45TR, STK22C48-NF45I, STK22C48-NF45ITR from Order- ing information table. Updated Package diagrams. 03/07/2011 Added watermark in PDF stating “Not recommended for new designs. In production to support ongoing production programs only.” ...
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... Cypress against all charges. Use may be limited by and subject to the applicable Cypress software license agreement. Document Number: 001-51000 Rev. *D All products and company names mentioned in this document may be the trademarks of their respective holders. cypress.com/go/plc Revised March 7, 2011 STK22C48 PSoC Solutions psoc.cypress.com/solutions PSoC 1 | PSoC 3 ...