Cypress CY7C1294DV18, CY7C1292DV18 manual Thermal Resistance21, AC Test Loads and Waveforms

CY7C1292DV18

CY7C1294DV18

Thermal Resistance[21]

Parameter	Description	Test Conditions	165 FBGA	Unit
ΘJA	Thermal Resistance (Junction to Ambient)	Test conditions follow standard test	28.51	°C/W
		methods and procedures for measuring
ΘJC	Thermal Resistance (Junction to Case)		5.91	°C/W
		thermal impedance, per EIA/JESD51.

AC Test Loads and Waveforms

VREF = 0.75V

VREF	0.75V
OUTPUT	Z0 = 50Ω
Device
Under
Test

ZQ

RQ =

250Ω

(a)

Note:

RL = 50Ω

VREF = 0.75V

VREF		0.75V	R = 50Ω				[22]
OUTPUT					ALL INPUT PULSES
				1.25V
Device			5 pF 0.25V			0.75V
Under	ZQ				Slew Rate = 2 V/ns
Test		RQ =

250Ω

(b)

22.Unless otherwise noted, test conditions assume signal transition time of 2V/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 #: 001-00350 Rev. *A Page 18 of 23

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