Capacitance[10, Capacitance – Cypress CY7C140 User Manual

Page 5

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CY7C130, CY7C130A
CY7C131, CY7C131A

CY7C140, CY7C141

Document #: 38-06002 Rev. *E

Page 5 of 19

Capacitance

[10]

Parameter

Description

Test Conditions

Max

Unit

C

IN

Input Capacitance

T

A

= 25

°C, f = 1 MHz,

V

CC

= 5.0V

15

pF

C

OUT

Output Capacitance

10

pF

Figure 4. AC Test Loads and Waveforms

3.0V

5V

OUTPUT

R1 893

Ω

R2
347

Ω

30 pF

INCLUDING

JIGAND

SCOPE

GND

90%

90%

10%

≤ 5 ns

≤5ns

5V

OUTPUT

R1 893

Ω

R2
347

Ω

5 pF

INCLUDING

JIGAND

SCOPE

(a)

(b)

OUTPUT

1.40V

Equivalent to:

THÉVENIN EQUIVALENT

5V

281

Ω

30

pF

BUSY

OR
INT

BUSY Output Load

(CY7C130/CY7C131 ONLY)

10%

ALL INPUT PULSES

250

Ω

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