PCA9665D datasheet(79/90 Pages) NXP

79 / 90 page

PCA9665_3

Product data sheet

Rev. 03 — 12 August 2008

79 of 90

NXP Semiconductors

PCA9665

Fm+ parallel bus to I2C-bus controller

14. Test information

Test data are given in Table 52.

RL = load resistance.

CL = load capacitance includes jig and probe capacitance.

RT = termination resistance should be equal to the output impedance ZO of the pulse generators.

Fig 44. Test circuitry for switching times

Table 52.

Test data

Test

Load

td(DV)

50 pF

500

Ω

VDD × 2

td(QZ)

50 pF

500

Ω

open

Test data are given in Table 53.

RL = load resistance. RL for SDA and SCL > 1 kΩ (3 mA or less current).

CL = load capacitance includes jig and probe capacitance.

RT = termination resistance should be equal to the output impedance ZO of the pulse generators.

Fig 45. Test circuitry for open-drain switching times

Table 53.

Test data

Test

Load

td(DV)

50 pF

1 k

Ω

VDD

td(QZ)

50 pF

1 k

Ω

VDD

tas(int)

50 pF

1 k

Ω

VDD

tdas(int)

50 pF

1 k

Ω

VDD

PULSE

GENERATOR

50 pF

500

Ω

002aac694

VDD

DUT

500

Ω

VDD × 2

open

VSS

PULSE

GENERATOR

50 pF

1 k

Ω

002aac695

VDD

DUT

VDD

open

VSS

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