Cypress CY7C1019D Data Retention Characteristics Over the Operating Range, Switching Waveforms

CY7C1019D

Data Retention Characteristics (Over the Operating Range)

Parameter	Description	Conditions			Min	Max	Unit
VDR	VCC for Data Retention				2.0		V
ICCDR	Data Retention Current	VCC = VDR = 2.0V,		> VCC – 0.3V,		3	mA
			CE
		VIN > VCC – 0.3V or VIN < 0.3V
tCDR [3]	Chip Deselect to Data Retention Time				0		ns
tR [12]	Operation Recovery Time				tRC		ns

Data Retention Waveform

		DATA RETENTION MODE
VCC	4.5V	VDR > 2V	4.5V
	tCDR		tR
CE

Switching Waveforms

Read Cycle No. 1 (Address Transition Controlled) [13, 14]

tRC

ADDRESS

tAA

tOHA

DATA OUT PREVIOUS DATA VALID

DATA VALID

Read Cycle No. 2 (OE Controlled) [14, 15]
ADDRESS
CE		tRC
	tACE
OE
	tDOE	tHZOE
		tHZCE
	tLZOE		HIGH
DATA OUT	HIGH IMPEDANCE	DATA VALID	IMPEDANCE
	tLZCE	tPD
VCC	tPU		ICC
SUPPLY	50%		50%
CURRENT			ISB

Notes

12.Full device operation requires linear VCC ramp from VDR to VCC(min) > 50 µs or stable at VCC(min) > 50 µs.

13.Device is continuously selected. OE, CE = VIL.

14.WE is HIGH for Read cycle.

15.Address valid prior to or coincident with CE transition LOW.

Document #: 38-05464 Rev. *E Page 6 of 11

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