Cypress CY7C1338G manual Capacitance10, Thermal Resistance10, AC Test Loads and Waveforms

CY7C1338G

Capacitance[10]

Parameter	Description	Test Conditions	100 TQFP	119 BGA	Unit
			Max.	Max.
CIN	Input Capacitance	TA = 25°C, f = 1 MHz,	5	5	pF
		VDD = 3.3V.
CCLK	Clock Input Capacitance		5	5	pF
		VDDQ = 3.3V
CI/O	Input/Output Capacitance		5	7	pF
Thermal Resistance[10]

Parameter	Description	Test Conditions	100 TQFP	119 BGA	Unit
			Package	Package
ΘJA	Thermal Resistance	Test conditions follow standard test	30.32	34.1	°C/W
	(Junction to Ambient)	methods and procedures for
		measuring thermal impedance, per
ΘJC	Thermal Resistance		6.85	14.0	°C/W
		EIA/JESD51.
	(Junction to Case)

AC Test Loads and Waveforms

3.3V I/O Test Load

R = 317Ω

OUTPUT

3.3V

ALL INPUT PULSES

VDDQ

Z0

= 50Ω

OUTPUT

RL

= 50Ω

10%

90%

5 pF

R = 351Ω

GND

≤ 1 ns

VT = 1.5V

INCLUDING

JIG AND

(a)

(b)

(c)

SCOPE

2.5V I/O Test Load

R = 1667Ω

OUTPUT

2.5V

ALL INPUT PULSES

VDDQ

Z0

= 50Ω

OUTPUT

RL

= 50Ω

10%

90%

5 pF

R =1538Ω

GND

≤ 1ns

VT = 1.25V

INCLUDING

JIG AND

(a)

(b)

(c)

SCOPE

90%

10%

≤ 1 ns

90%

10%

≤ 1ns

Note:

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

Document #: 38-05521 Rev. *D Page 9 of 17