Cypress CY7C1330AV25 manual Capacitance17, Thermal Resistance17, AC Test Loads and Waveforms

							CY7C1330AV25
				PRELIMINARY			CY7C1332AV25
Capacitance[17]
Parameter			Description			Test Conditions			Max.	Unit
CIN		Input Capacitance				TA = 25°C, f = 1 MHz,			5		pF
						VDD = 2.5V
CCLK		Clock Input Capacitance							6		pF
						VDDQ = 1.5V
CI/O		Input/Output Capacitance							7		pF
Thermal Resistance[17]
Parameter	Description				Test Conditions				BGA Typ.		Unit
ΘJA	Thermal Resistance			Still Air, soldered on a 4.25 x 1.125 inch, 4-layer printed				19.7			°C/W
	(Junction to Ambient)			circuit board
ΘJC	Thermal Resistance							6.0			°C/W
	(Junction to Case)

AC Test Loads and Waveforms

VREF	0.75V
OUTPUT	Z0 = 50Ω
Device
Under
Test

ZQ

RQ =

250Ω

(a)

RL = 50Ω

VREF = 0.75V

		VREF = 0.75V
VREF		0.75V	R = 50Ω				[18]
OUTPUT					ALL INPUT PULSES
				1.25V
Device			5 pF 0.25V			0.75V
Under	ZQ				Slew Rate = 2 V/ns
Test		RQ =

250Ω

(b)

Notes:

17.Tested initially and after any design or process change that may affect these parameters.

18.Unless otherwise noted, test conditions assume signal transition time of 2 V/ns, timing reference levels of 0.75V, VREF = 0.75V, RQ = 250Ω, VDDQ = 1.5V, input pulse levels of 0.25V to 1.25V, and output loading of the specified IOL/IOH and load capacitance shown in (a) of AC Test Loads.

Document No: 001-07844 Rev. *A Page 14 of 19

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