Cypress STK15C88 manual AC Switching Characteristics, Switching Waveforms, Sram Read Cycle

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								STK15C88
AC Switching Characteristics
SRAM Read Cycle

Parameter			Description		25 ns		45 ns		Unit
Cypress	Alt		Description	Min		Max	Min	Max	Unit
Parameter	Alt			Min		Max	Min	Max
Parameter
tACE	tELQV		Chip Enable Access Time			25		45	ns
tRC [5]	tAVAV, tELEH		Read Cycle Time	25			45		ns
tAA [6]	tAVQV		Address Access Time			25		45	ns
tDOE	tGLQV		Output Enable to Data Valid			10		20	ns
tOHA [6]	tAXQX		Output Hold After Address Change	5			5		ns
tLZCE [7]	tELQX		Chip Enable to Output Active	5			5		ns
tHZCE [7]	tEHQZ		Chip Disable to Output Inactive			10		15	ns
tLZOE [7]	tGLQX		Output Enable to Output Active	0			0		ns
tHZOE [7]	tGHQZ		Output Disable to Output Inactive			10		15	ns
tPU [4]	tELICCH		Chip Enable to Power Active	0			0		ns
tPD [4]	tEHICCL		Chip Disable to Power Standby			25		45	ns

Switching Waveforms

Figure 5. SRAM Read Cycle 1: Address Controlled [5, 7]

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Figure 6. SRAM Read Cycle 2: CE and OE Controlled [5]

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Notes

5.WE must be HIGH during SRAM Read Cycles and LOW during SRAM WRITE cycles.

6.I/O state assumes CE and OE < VIL and WE > VIH; device is continuously selected.

7.Measured ±200 mV from steady state output voltage.

Document Number: 001-50593 Rev. **

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Contents Features Logic Block DiagramFunctional Description Cypress Semiconductor Corporation 198 Champion CourtPin Configurations Write Enable Input, Active LOW. When the chip is enabledOutput Enable, Active LOW. The active LOW Power Supply Inputs to the DeviceHardware Recall Power Up Device OperationSram Read Sram WriteLow Average Active Power Hardware ProtectNoise Considerations Best Practices Software STORE/RECALL Mode Selection 13 a 0x0E38 Read Sram Output Data Read Sram Output Data 0x03E0 Read Sram Output Data 0x303FDC Electrical Characteristics Range Ambient TemperatureMaximum Ratings Operating RangeData Retention and Endurance CapacitanceAC Test Conditions Thermal ResistanceAC Switching Characteristics Switching WaveformsSram Read Cycle Parameter Description 25 ns 45 ns Unit Cypress Alt Min MaxSwitching Min Max ParameterAutoStore or Power Up Recall Parameter Alt Description STK15C88 Unit Min MaxSoftware Controlled STORE/RECALL Cycle Parameter Alt Description 25 ns 45 ns Unit Min MaxPart Numbering Nomenclature STK15C88 N F 45 I TR Ordering InformationPackage Diagrams Pin 300 mil SoicPin 330 mil Soic Sales, Solutions and Legal Information Worldwide Sales and Design Support Products PSoC SolutionsNew data sheet Document History