Cypress STK14C88-3 manual AutoStore or Power Up Recall

							STK14C88-3
AutoStore or Power Up RECALL
Parameter	Alt	Description			STK14C88-3			Unit
					Min	Max
tHRECALL [15]	tRESTORE	Power up RECALL Duration				550		μs
tSTORE [16, 17]	tHLHZ	STORE Cycle Duration				10		ms
tVSBL[16]		Low Voltage Trigger (VSWITCH) to	HSB	low		300		ns
VRESET		Low Voltage Reset Level				2.4		V
VSWITCH		Low Voltage Trigger Level			2.7	2.95		V
tDELAY[16]	tBLQZ	Time Allowed to Complete SRAM Cycle			1			μs

Switching Waveforms

Figure 11. AutoStore/Power Up RECALL

WE

Notes

15.tHRECALL starts from the time VCC rises above VSWITCH.

16.CE and OE low and WE high for output behavior.

17.HSB is asserted low for 1us when VCAP drops through VSWITCH. If an SRAM WRITE has not taken place since the last nonvolatile cycle, HSB will be released and no store will take place.

Document Number: 001-50592 Rev. ** Page 11 of 17

[+] Feedback