Cypress CY7C1548V18, CY7C1546V18 Maximum Ratings, Electrical Characteristics, Operating Range

CY7C1546V18, CY7C1557V18 CY7C1548V18, CY7C1550V18

Maximum Ratings

Exceeding maximum ratings may impair the useful life of the device. These user guidelines are not tested.

Storage Temperature ................................. –65°C to +150°C

Ambient Temperature with Power Applied.. –55°C to +125°C

Supply Voltage on VDD Relative to GND		–0.5V to +2.9V
Supply Voltage on VDDQ Relative to GND		–0.5V to +VDD
DC Applied to Outputs in High-Z	–0.5V to VDDQ + 0.3V
DC Input Voltage [15]	–0.5V to V + 0.3V
		DD

Current into Outputs (LOW)				20 mA
Static Discharge Voltage (MIL-STD-883, M. 3015)...				>2001V
Latch up Current	.....................................................			>200 mA
Operating Range
Range	Ambient	VDD	[15]	VDDQ	[15]
	Temperature (TA)
Commercial	0°C to +70°C	1.8 ± 0.1V		1.4V to
				VDD
Industrial	–40°C to +85°C

Electrical Characteristics

Over the Operating Range [13]

DC Electrical Characteristics

Parameter	Description	Test Conditions			Min	Typ	Max	Unit
VDD	Power Supply Voltage				1.7	1.8	1.9	V
VDDQ	IO Supply Voltage				1.4	1.5	VDD	V
VOH	Output HIGH Voltage	Note 17			VDDQ/2 – 0.12		VDDQ/2 + 0.12	V
VOL	Output LOW Voltage	Note 18			VDDQ/2 – 0.12		VDDQ/2 + 0.12	V
VOH(LOW)	Output HIGH Voltage	IOH = –0.1 mA, Nominal Impedance			VDDQ – 0.2		VDDQ	V
VOL(LOW)	Output LOW Voltage	IOL = 0.1 mA, Nominal Impedance			VSS		0.2	V
VIH	Input HIGH Voltage				VREF + 0.1		VDDQ + 0.15	V
VIL	Input LOW Voltage				–0.15		VREF – 0.1	V
IX	Input Leakage Current	GND ≤ VI ≤ VDDQ			–2		2	μA
IOZ	Output Leakage Current	GND ≤ VI ≤ VDDQ, Output Disabled			–2		2	μA
VREF	Input Reference Voltage [19]	Typical Value = 0.75V			0.68	0.75	0.95	V
IDD [20]	VDD Operating Supply	VDD = Max,	375MHz	(x8)			1300	mA
		IOUT = 0 mA,
				(x9)			1300
		f = fMAX = 1/tCYC
				(x18)			1300
				(x36)			1300
			333MHz	(x8)			1200	mA
				(x9)			1200
				(x18)			1200
				(x36)			1200
			300MHz	(x8)			1100	mA
				(x9)			1100
				(x18)			1100
				(x36)			1100

Notes

15.Overshoot: VIH(AC) < VDDQ + 0.3V (pulse width less than tCYC/2). Undershoot: VIL(AC) > − 0.3V (pulse width less than tCYC/2).

16.Power up: assumes a linear ramp from 0V to VDD(min) within 200 ms. During this time VIH < VDD and VDDQ < VDD.

17.Outputs are impedance controlled. IOH = –(VDDQ/2)/(RQ/5) for values of 175Ω < RQ < 350Ω.

18.Outputs are impedance controlled. IOL = (VDDQ/2)/(RQ/5) for values of 175Ω < RQ < 350Ω.

19.VREF (min) = 0.68V or 0.46VDDQ, whichever is larger. VREF (max) = 0.95V or 0.54VDDQ, whichever is smaller.

20.The operation current is calculated with 50% read cycle and 50% write cycle.

Document Number: 001-06550 Rev. *E Page 20 of 28

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