stk14d88 Simtek Corporation, stk14d88 Datasheet
stk14d88
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stk14d88 Summary of contents
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... Simtek standard warranty. The product has completed Simtek internal qualification testing and has reached production status. DESCRIPTION The Simtek STK14D88 is a 256Kb fast static RAM with a non-volatile Quantum Trap storage element included with each memory cell. The SRAM provides the fast access & cycle times, ease of use and unlimited read & ...
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... STK14D88 V CAP (TOP Pin SSOP PIN DESCRIPTIONS Pin Name A -A Input ...
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... V, this parameter is characterized but not tested STK14D88 Ratings” may cause permanent damage to the device. This is a stress rating only, and functional operation of the device at con- ditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rat- ing conditions for extended periods may affect reliability ...
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... STK14D88 AC TEST CONDITIONS Input Pulse Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Input Rise and Fall Times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≤ 5ns Input and Output Timing Reference Levels . . . . . . . . . . . . . . . 1.5V Output Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Figure 1 and 2 b CAPACITANCE (T A SYMBOL PARAMETER C Input Capacitance IN C Output Capacitance OUT Note b: These parameters are guaranteed but not tested. ...
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... ELQ ELI IVE ST AND BY 5 STK14D88 STK14D88-25 STK14D88-35 STK14D88-45 MIN MAX MIN MAX MIN MAX ...
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... AVWH 13 t WLWH 15 t DVWH DATA VALID 20 t WLQZ HIGH IMPEDANCE g AVAV 14 t ELEH 17 t AVEH 13 t WLEH 15 t DVEH HIGH IMPEDANCE 6 STK14D88-35 STK1D88-45 MAX MIN MAX MIN MAX ...
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... STORE Cycle Duration Low Voltage Trigger Level V Rise Time CC rises above V CC SWITCH STORE occurs only STORE BROWN OUT TM AutoStore 7 STK14D88 STK14D88 MIN MAX 20 12.5 2.65 150 No STORE occurs SRAM write has without at least one happened. SRAM write STORE 22 t HRECALL ...
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... AVEL (DATA) Document Control #ML0033 Rev 2.0 Jan 2008 STK14D88-35 PARAMETER MIN MAX ADDRESS # ELEH 29 t EHAX DATA VALID 8 l,m STK14D88-35 STK14D88-45 UNITS NOTES MIN MAX MIN MAX μ AVAV ...
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... Hardware STORE to SRAM Disabled Hardware STORE Pulse Width 23 t STORE 31 t DELAY PARAMETER Soft Sequence Processing Time Soft Sequence Command ADDRESS #6 ADDRESS #1 9 STK14D88 STK14D88 UNITS NOTES MIN MAX μ SRAM Enabled STK14 UNITS NOTES D88 MIN MAX μ ...
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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. r: While there are 15 addresses on the STK14D88, only the lower 14 are used to control software modes s: I/O state depends on the state of G. The I/O table shown assumes G low Document Control #ML0033 Rev 2 ...
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... I/O lines left low, internal circuitry will turn off the output buffers t low. AutoStore OPERATION The STK14D88 stores data to nvSRAM using one of three storage operations. These three operations are Hardware Store (activated by HSB), Software Store (activated by an address sequence), and determine which of AutoStore (on power down) ...
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... SRAM READ and WRITE operations that are in progress when HSB is driven low by any means are given time to complete before the STORE operation is initiated. After HSB goes low, the STK14D88 will continue SRAM operations for t multiple SRAM READ operations may take place. If ...
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... STORE and WRITE operations. The low- voltage condition is detected when V If the STK14D88 WRITE mode (both E and W low) at power-up, after a RECALL, or after a STORE, the WRITE will be inhibited until a negative transition detected. This protects against inadvertent writes during power up or brown out conditions ...
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... STK14D88 NOISE CONSIDERATIONS The STK14D88 is a high-speed memory and so must have a high-frequency bypass capacitor of 0.1 µF connected between both V ground plane with no plane break to chip V leads and traces that are as short as possible. As with all high-speed CMOS ICs, careful routing of power, ground, and signals will reduce circuit noise. ...
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... ORDERING INFORMATION STK14D88 Document Control #ML0033 Rev 2.0 Jan 2008 Packaging Option Blank= Tube TR= Tape & Reel Temperature Range Blank=Commercial ( Industrial (-45 to +85 C) Access Time 25=25 ns 35=35 ns 45=45 ns Lead Finish F=100% Sn (Matte Tin) RoHS Compliant Package N=Plastic 32-pin 300 mil SOIC (50 mil pitch) ...
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... STK14D88-NF25I 3V 32Kx 8 AutoStore nvSRAM SOP32-300 STK14D88-NF35I 3V 32Kx 8 AutoStore nvSRAM SOP32-300 STK14D88-NF45I 3V 32Kx 8 AutoStore nvSRAM SOP32-300 STK14D88-NF25ITR 3V 32Kx 8 AutoStore nvSRAM SOP32-300 STK14D88-NF35ITR 3V 32Kx 8 AutoStore nvSRAM SOP32-300 STK14D88-NF45ITR 3V 32Kx 8 AutoStore nvSRAM SOP32-300 STK14D88-RF25I 3V 32Kx 8 AutoStore nvSRAM SSOP48-300 STK14D88-RF35I 3V 32Kx 8 AutoStore nvSRAM SSOP48-300 STK14D88-RF45I ...
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... Pin 1 Index 0.026 0.66 ( 0.032 0.81 0.12 0. 0.014 0.36 0.020 0.51 0.006 0. 0.013 0.32 Document Control #ML0033 Rev 2.0 Jan 2008 PACKAGE DRAWINGS 0.810 20. 0.822 20. 0.021 0.53 0.041 1.04 17 STK14D88 0.292 7. 0.300 7.60 0.405 10.29 ( 0.419 10.64 .050 (1.27) BSC 0.090 2. 0.100 2.54 0.086 0.090 ( ) 0.004 0.10 0.010 0.25 DIM = INCHES MAX ( MIN DIM = mm MAX ...
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... STK14D88 48 Pin 300 mil SSOP 0.400 ) ( 10.16 10.41 0.410 7.42 0.292 ) ( 0.299 7.59 .045 ( ) 11.43 .055 13.97 Pin 1 indicator .045 DIA. (11.43) .020 (5.1) SIDE VIEW 0.008 0.025 (0.635) 0.0135 0.620 ( 15.75 ) 0.630 16.00 0.008 0.016 MIN DIM = INCHES MAX MIN ( DIM = mm MAX Document Control #ML0033 Rev 2.0 Jan 2008 TOP VIEW ...
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... RECALL Undefined Million NV C 100 Years at Unspecified Temperature DATA R Added back a missing Mode table. Removed “Leaded” Lead Finish package offering 19 STK14D88 New Value Notes New Value Notes Typographical Error Datasheet 70 us New Nonvolatile 500K ...
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... February 2007 2.0 January 2008 SIMTEK STK14D88 Datasheet, January 2008 Copyright 2008, Simtek Corporation. All rights reserved. This datasheet may only be printed for the expressed use of Simtek Customers. No part of the datasheet may be reproduced in any other form or means without the express written permission from Simtek Corporation. The information contained in this publication is believed to be accurate, but changes may be made without notice ...