TCA9534PWR datasheet(10/34 Pages) TI1

No de pièce	TCA9534PWR

Description	Low Voltage 8-Bit I2C and SMBUS Low-Power I/O Expander With Interrupt Output and Configuration Registers

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Fabricant	TI1 [Texas Instruments]

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A

S

0

1

0

A1

A2

A0

1

Data 1

1

P

Data 2

Start

Condition

8 Bits

(One Data Byte)

From Port

Data From Port

Slave Address

R/W

8

7

6

5

4

3

2

1

tir

tsps

tiv

Address

Data 1

Data 2

INT

Data

Into

Port

B

A

Pn

INT

R/W

A

tir

0.7

× VCC

0.3

× VCC

0.7

× VCC

0.3

× VCC

0.7

× VCC

0.3

× VCC

0.7

× VCC

0.3

× VCC

INT

SCL

View B−B

View A−A

tiv

RL = 4.7 kΩ

VCC

CL = 100 pF

(see Note A)

INTERRUPT LOAD CONFIGURATION

DUT

INT

ACK

From Slave

ACK

From Slave

TCA9534

SCPS197A – SEPTEMBER 2014 – REVISED SEPTEMBER 2014

www.ti.com

Parameter Measurement Information (continued)

A.

CL includes probe and jig capacitance.

B.

All inputs are supplied by generators having the following characteristics: PRR

≤ 10 MHz, ZO = 50 Ω, tr/tf ≤ 30 ns.

C.

All parameters and waveforms are not applicable to all devices.

Figure 10. Interrupt Load Circuit And Voltage Waveforms

10

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