Cypress CY62256 manual Truth Table, Ordering Information, Inputs/Outputs Mode Power, Normalized

CY62256

Typical DC and AC Characteristics (continued)

TYPICAL POWER-ON CURRENT vs. SUPPLY VOLTAGE

	3.0
PO	2.5
I	2.0
NORMALIZED
	1.5
	1.0
	0.5
	0.0					5.0
	0.0	1.0	2.0	3.0	4.0

SUPPLY VOLTAGE (V)

TYPICAL ACCESS TIME CHANGE	NORMALIZED I CC vs.CYCLE TIME
vs. OUTPUT LOADING

	30.0							1.25
(ns)	25.0						CC		VCC =5.0V
							I		TA =25° C
	20.0						NORMALIZED	1.00
AA									VIN =0.5V
DELTA t	15.0
	10.0			VCC =4.5V				0.75
	5.0			TA =25° C
	0.0	200	400	600	800	1000		0.50	20	30	40
	0							10
		CAPACITANCE (pF)							CYCLE FREQUENCY (MHz)

Truth Table

CE	WE	OE	Inputs/Outputs	Mode	Power
H	X	X	High-Z	Deselect/Power-down	Standby (ISB)
L	H	L	Data Out	Read	Active (ICC)
L	L	X	Data In	Write	Active (ICC)
L	H	H	High-Z	Deselect, Output Disabled	Active (ICC)

Ordering Information

Speed		Package		Operating
(ns)	Ordering Code	Name	Package Type	Range
55	CY62256LL− 55SNI	SN28	28-lead (300-Mil Narrow Body) Narrow SOIC	Industrial
	CY62256LL− 55ZI	Z28	28-lead Thin Small Outline Package
70	CY62256− 70SNC	SN28	28-lead (300-Mil Narrow Body) Narrow SOIC	Commercial
	CY62256L− 70SNC
	CY62256LL− 70SNC
	CY62256L–70SNI			Industrial
	CY62256LL− 70SNI
	CY62256LL− 70ZC	Z28	28-lead Thin Small Outline Package	Commercial
	CY62256LL− 70ZI	Z28		Industrial
	CY62256− 70PC	P15	28-lead (600-Mil) Molded DIP	Commercial
	CY62256L− 70PC	P15
	CY62256LL− 70PC	P15
	CY62256LL− 70ZRI	ZR28	28-lead Reverse Thin Small Outline Package	Industrial

Document #: 38-05248 Rev. *B Page 8 of 11