Cypress CY7C1352G manual Capacitance11, Thermal Resistance11, AC Test Loads and Waveforms

CY7C1352G

Electrical Characteristics Over the Operating Range[9, 10] (continued)

Parameter	Description	Test Conditions		Min.	Max.	Unit
ISB4	Automatic CE	VDD = Max, Device Deselected,	All speeds		45	mA
	Power-down	VIN ≥ VIH or VIN ≤ VIL, f = 0
	Current—TTL Inputs

Capacitance[11]

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 = 3.3V
CI/O	Input/Output Capacitance		5	pF
Thermal Resistance[11]

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

VT = 1.5V

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

Note:

11. Tested initially and after any design or process changes that may affect these parameters.

ALL INPUT PULSES

VDDQ		90%
10%
GND
≤ 1 ns
		(c)
VDDQ	ALL INPUT PULSES
		90%
10%
GND
≤ 1 ns

(c)

1ns

90%

10%

≤ 1 ns

90%

10%

≤ 1 ns

Document #: 38-05514 Rev. *D Page 7 of 12

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