Cypress CY7C1019BN manual Data Retention Waveform, Switching Waveforms, Read Cycle No

CY7C1019BN

Data Retention Characteristics Over the Operating Range (L Version Only)

Parameter	Description	Conditions	Min.	Max.	Unit
VDR	VCC for Data Retention	No input may exceed VCC + 0.5V	2.0		V
		VCC = VDR = 2.0V,
ICCDR	Data Retention Current			300	∝A
		CE > VCC – 0.3V,
tCDR[3]	Chip Deselect to Data Retention Time		0		ns
		VIN > VCC – 0.3V or VIN < 0.3V
tR	Operation Recovery Time		200		∝s

Data Retention Waveform

		DATA RETENTION MODE
VCC	3.0V	VDR > 2V	3.0V
	tCDR		tR
CE

Switching Waveforms

Read Cycle No. 1[9, 10]

tRC

ADDRESS

tAA

tOHA

DATA OUT PREVIOUS DATA VALID

DATA VALID

Read Cycle No. 2 (OE Controlled)[10, 11]
ADDRESS
		tRC
CE
	tACE
OE		tHZOE
	tDOE
		tHZCE
	tLZOE		HIGH
DATA OUT	HIGH IMPEDANCE	DATA VALID	IMPEDANCE
	tLZCE	tPD
VCC	tPU		ICC
SUPPLY	50%		50%
CURRENT			ISB

Notes:

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

10. WE is HIGH for read cycle.

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

Document #: 001-06425 Rev. ** Page 4 of 8

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