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Capacitance, Thermal resistance, Ac test loads and waveforms – Cypress CY7C1353G User Manual

Page 8

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CY7C1353G

Document #: 38-05515 Rev. *E

Page 8 of 13

.

Capacitance

[12]

Parameter

Description

Test Conditions

100 TQFP

Max

Unit

C

IN

Input Capacitance

T

A

= 25°C, f = 1 MHz,

V

DD

= 3.3V

V

DDQ

=3.3V

5

pF

C

CLOCK

Clock Input Capacitance

5

pF

C

IO

IO Capacitance

5

pF

Thermal Resistance

[12]

Parameters

Description

Test Conditions

100 TQFP

Package

Unit

Θ

JA

Thermal Resistance

(Junction to Ambient)

Test conditions follow standard test methods and

procedures for measuring thermal impedance,

according to EIA/JESD51.

30.32

°C/W

Θ

JC

Thermal Resistance

(Junction to Case)

6.85

°C/W

AC Test Loads and Waveforms

Note:

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

OUTPUT

R = 317

R = 351

5 pF

INCLUDING

JIG AND

SCOPE

(a)

(b)

OUTPUT

R

L

= 50

Z

0

= 50

V

T

= 1.5V

3.3V

ALL INPUT PULSES

V

DDQ

GND

90%

10%

90%

10%

≤ 1ns

≤ 1ns

(c)

OUTPUT

R = 1667

R =1538

5 pF

INCLUDING

JIG AND

SCOPE

(a)

(b)

OUTPUT

R

L

= 50

Z

0

= 50

V

T

= 1.25V

2.5V

ALL INPUT PULSES

V

DDQ

GND

90%

10%

90%

10%

≤ 1ns

≤ 1ns

(c)

3.3V IO Test Load

2.5V IO Test Load

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