Cypress Semiconductor CY7C1386F Manual do Utilizador descarregar pdf (Página 23)

CY7C1386D, CY7C1386F

CY7C1387D, CY7C1387F

Document Number: 38-05545 Rev. *H Page 23 of 36

AC Test Loads and Waveforms

Figure 4. AC Test Loads and Waveforms

OUTPUT

R = 317 

R = 351 

5pF

INCLUDING

JIG AND

SCOPE

(a)

(b)

OUTPUT

R

L

= 50 

Z

0

= 50 

V

T

= 1.5 V

3.3 V

ALL INPUT PULSES

V

DDQ

GND

90%

10%

90%

10%

 1 ns

 1 ns

(c)

OUTPUT

R = 1667 

R = 1538 

5pF

INCLUDING

JIG AND

SCOPE

(a)

(b)

OUTPUT

R

L

= 50 

Z

0

= 50 

V

T

= 1.25 V

2.5 V

ALL INPUT PULSES

V

DDQ

GND

90%

10%

90%

10%

 1 ns

 1 ns

(c)

3.3 V I/O Test Load

2.5 V I/O Test Load

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