Instruction/ maintenance manual of the product STK16C88-3 Cypress
Go to page of 14
STK16C88-3 256 Kbit (32K x 8) AutoS tore+ nvSRAM Cypress Semiconducto r Corporation • 198 Champion Court • San Jose , CA 95134-1709 • 408-943-2600 Document Number: 001-50594 Rev .
STK16C88-3 Document Number: 001-50594 Rev . ** Page 2 of 14 Pin Configurations Figure 1. Pin Diagram - 28-Pin PDIP T able 1. Pin Definitions - 28-Pin PDIP Pin Name Alt IO T ype Description A 0 –A 14 Input Address In pu ts. Used to select one of the 32,768 bytes of the nvSRAM.
STK16C88-3 Document Number: 001-50594 Rev . ** Page 3 of 14 Device Operation The AutoS tore+ ST K16C8 8-3 is a fast 32K x 8 SR AM that does not lose its data on power down. T he data is preserved in inte gral QuantumTrap non-volatile storage elemen ts when power is lost.
STK16C88-3 Document Number: 001-50594 Rev . ** Page 4 of 14 Hardware Protect The STK16C88-3 offers hardware protection against inadvertent STORE operation and SRAM WRITEs during low voltage conditions. When V CAP <V SWITCH , all extern ally initiated STORE operation s and SRAM WRITEs are inh ibited.
STK16C88-3 Document Number: 001-50594 Rev . ** Page 5 of 14 T able 2. Software STOR E/RECALL Mode Selecti on CE WE A 13 – A 0 Mode IO Notes L H 0x0E38 0x31C7 0x03E0 0x3C1F 0x303F 0x0FC0 Read SRAM Re.
STK16C88-3 Document Number: 001-50594 Rev . ** Page 6 of 14 Maximum Ratin gs Exceeding maximum ratings may shorten the useful life of the device. These user g uidelines are not tested. S torage T emperature ............. ... ... ... ........... –65 ° C to +150 ° C T emperature under bias .
STK16C88-3 Document Number: 001-50594 Rev . ** Page 7 of 14 Cap acit ance In the following table, the capacitance parameters are listed. [4] Parameter Description T est Condi tions Max Unit C IN Input Capacit ance T A = 25 ° C, f = 1 MHz, V CC = 0 to 3.
STK16C88-3 Document Number: 001-50594 Rev . ** Page 8 of 14 AC Switching Characteristics SRAM Read Cycle Parameter Description 35 ns Unit Min Max Cypress Parameter Alt t ACE t ELQV Chip Enable Access .
STK16C88-3 Document Number: 001-50594 Rev . ** Page 9 of 14 T able 3. SRAM Write Cycle Parameter Description 35 n s Unit Min Max Cypress Parameter Alt t WC t AVAV Write Cycle T ime 35 ns t PWE t WL WH.
STK16C88-3 Document Number: 001-50594 Rev . ** Page 10 of 14 AutoStorePlus or Power Up RECALL Parameter Alt Description STK16C88-3 Unit Min Max t HRECALL [10] t RESTORE Power up RECALL Duration 550 μ s t STORE t HLHZ STORE Cycle Duration 10 ms t stg [4, 6] Power-down AutoStore Slew T ime to Ground 500 ns V RESET Low V oltage Reset Leve l 2.
STK16C88-3 Document Number: 001-50594 Rev . ** Page 1 1 of 14 Sof tware Controlled STORE/RECALL Cycle The software controlled ST ORE/RECALL cycle follows.
STK16C88-3 Document Number: 001-50594 Rev . ** Page 12 of 14 Ordering Information Spe e d (ns) Ordering Code Package Diagra m Package T ype O perating Range 35 STK16C88-3WF35 51-85017 28-pin PDIP Commercial STK16C88-3WF35I Indu strial All part s are Pb-free.
STK16C88-3 Document Number: 001-50594 Rev . ** Page 13 of 14 Package Diagrams Figure 1 1. 28-Pin (600 Mil) PDIP (51-85017 ) 51-85017 *B [+] Feedback.
Document Number: 001-50594 Rev . ** Revised January 29, 20 09 Page 14 of 14 AutoStore and QuantumT rap are reg istered trademarks of Cy press Semiconductor Corp oration. All product s and compan y names mentioned in thi s docum ent may be the trademarks of thei r respective holders.
An important point after buying a device Cypress STK16C88-3 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Cypress STK16C88-3 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Cypress STK16C88-3 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Cypress STK16C88-3 you will learn all the available features of the product, as well as information on its operation. The information that you get Cypress STK16C88-3 will certainly help you make a decision on the purchase.
If you already are a holder of Cypress STK16C88-3, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Cypress STK16C88-3.
However, one of the most important roles played by the user manual is to help in solving problems with Cypress STK16C88-3. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Cypress STK16C88-3 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
