Cypress Semiconductor CY7C1380C Manuel d'utilisateur télécharger pdf (Page 26)

CY7C1380C

CY7C1382C

Document #: 38-05237 Rev. *D Page 26 of 36

AC Test Loads and Waveforms

OUTPUT

R = 317Ω

R = 351Ω

5pF

INCLUDING

JIG AND

SCOPE

(a)

(b)

OUTPUT

R

L

= 50Ω

Z

0

= 50Ω

V

L

= 1.5V

3.3V

ALL INPUT PULSES

V

DD

GND

90%

10%

90%

10%

≤ 1ns

≤ 1ns

(c)

OUTPUT

R = 1667Ω

R =1538Ω

5pF

INCLUDING

JIG AND

SCOPE

(a)

(b)

OUTPUT

R

L

= 50Ω

Z

0

= 50Ω

V

L

= 1.25V

2.5V

ALL INPUT PULSES

V

DD

GND

90%

10%

90%

10%

≤ 1ns

≤ 1ns

(c)

3.3V I/O Test Load

2.5V I/O Test Load

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