Cypress CY7C1346H manual Capacitance10, Thermal Resistance10, AC Test Loads and Waveforms

CY7C1346H

Capacitance[10]

Parameter	Description	Test Conditions	100 TQFP	Unit
			Max.
CIN	Input Capacitance	TA = 25°C, f = 1 MHz,	5	pF
		VDD = 3.3V.
CCLK	Clock Input Capacitance		5	pF
		VDDQ = 2.5V
CI/O	Input/Output Capacitance		5	pF
Thermal Resistance[10]

Parameter	Description	Test Conditions	100 TQFP	Unit
			Package
ΘJA	Thermal Resistance	Test conditions follow standard test	30.32	°C/W
	(Junction to Ambient)	methods and procedures for measuring
		thermal impedance, per EIA/JESD51
ΘJC	Thermal Resistance		6.85	°C/W
	(Junction to Case)
AC Test Loads and Waveforms
3.3V I/O Test Load

OUTPUT			3.3V		R = 317Ω
	Z0	= 50Ω	OUTPUT
			RL = 50Ω	5 pF		R = 351Ω

VL = 1.5V

							INCLUDING
					(a)		JIG AND			(b)
								SCOPE
2.5V I/O Test Load							2.5V			R = 1667Ω
OUTPUT
	Z0	= 50Ω					OUTPUT
						RL = 50Ω
								5 pF			R =1538Ω
							INCLUDING
				VT = 1.25V
							JIG AND
							SCOPE
			(a)						(b)

Note:

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

VDDQ	ALL INPUT PULSES
			90%
10%		90%		10%
GND				≤ 1 ns
≤ 1 ns

(c)

VDDQ	ALL INPUT PULSES
			90%
10%		90%		10%
GND				≤ 1 ns
≤ 1 ns

(c)

Document #: 38-05672 Rev. *B Page 9 of 16

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