Cypress STK16C88-3 manual Software Controlled STORE/RECALL Cycle

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								STK16C88-3
Software Controlled STORE/RECALL Cycle
The software controlled STORE/RECALL cycle follows. [11, 12]
	Parameter		Alt		Description		35 ns		Unit
	Parameter		Alt		Description	Min		Max	Unit
						Min		Max
tRC		tAVAV			STORE/RECALL Initiation Cycle Time	35			ns
t	[11]	t	AVEL		Address Setup Time	0			ns
	SA		AVEL
tCW[11]		tELEH			Clock Pulse Width	25			ns
tHACE[7, 11]		tELAX			Address Hold Time	20			ns
tRECALL					RECALL Duration			20	μs

Switching Waveforms

Figure 10. CE Controlled Software STORE/RECALL Cycle [12]

ADDRESS

CE

OE

DQ (DATA)

tRC

ADDRESS # 1

tSA				tSCE

tHACE

DATA VALID

tRC

ADDRESS # 6

tSTORE / tRECALL

HIGH IMPEDANCE

DATA VALID

Notes

11.The software sequence is clocked on the falling edge of CE without involving OE (double clocking will abort the sequence).

12.The six consecutive addresses must be read in the order listed in the Mode Selection table. WE must be HIGH during all six consecutive cycles.

Document Number: 001-50594 Rev. **

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Contents Cypress Semiconductor Corporation 198 Champion Court FeaturesLogic Block Diagram Functional DescriptionPower Supply Inputs to the Device Pin ConfigurationsWrite Enable Input, Active LOW. When the chip is enabled Output Enable, Active LOW. The active LOWSram Write Hardware Recall Power UpDevice Operation Sram ReadBest Practices Low Average Active PowerHardware Protect Noise ConsiderationsRead Sram Output Data 0x303F Software STORE/RECALL Mode Selection 13 a0x0E38 Read Sram Output Data Read Sram Output Data 0x03E0Data Retention and Endurance DC Electrical CharacteristicsMaximum Ratings Operating RangeDescription Test Conditions Max Unit CapacitanceAC Test Conditions Thermal ResistanceParameter Description 35 ns Unit Cypress Alt Min Max AC Switching CharacteristicsSwitching Waveforms Sram Read CycleAddress Setup to Start of Write Chip Enable To End of WriteData Setup to End of Write Address Setup to End of WriteParameter Alt Description STK16C88-3 Unit Min Max AutoStorePlus or Power Up RecallPower up Recall Duration Low Voltage Reset LevelParameter Alt Description 35 ns Unit Min Software Controlled STORE/RECALL CycleOrdering Information Part Numbering Nomenclature STK16C88 3W F 35Pin 600 Mil Pdip Package DiagramsDocument History Sales, Solutions and Legal InformationWorldwide Sales and Design Support Products PSoC Solutions New data sheet