Cypress Semiconductor Perform CY7C1356C User Manual download pdf (Page 20)

CY7C1354V25

CY7C1356V25

PRELIMINARY

Capacitance

[15]

Parameter Description Test Conditions Max. Unit

Input Capacitance T

= 25°C, f = 1 MHz,

= V

DDQ

= 2.5V

4 pF

CLK

Clock Input Capacitance 4 pF

I/O

Input/Output Capacitance 4 pF

Thermal Resistance

Description Test Conditions Symbol TQFP Typ. Units Notes

Thermal Resistance

(Junction to Ambient)

Still Air, soldered on a 4.25 x 1.125 inch, 4-

layer printed circuit board

TBD °C/W 15

Thermal Resistance

(Junction to Case)

TBD °C/W 15

Notes:

14. Input waveform should have a slew rate of >

1 V/ns.

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

OUTPUT

R=1667

Ω

R=1538

Ω

5pF

INCLUDING

JIG AND

SCOPE

(a) (b)

OUTPUT

=50

Ω

=50

Ω

= 1.25V

2.5V

ALL INPUT PULSES

[14]

2.5V

GND

90%

10%

90%

10%

2.0 ns

(c)

AC Test Loads and Waveforms

1 2 ... 15 16 17 18 19 20 21 22 23 24 25 26

CY7C1354V25 1
CY7C1356V25 1
PRELIMINARY 10
51-85050-A 25
51-85115 26

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Cypress Semiconductor Perform CY7C1356C User Manual Page 20

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