TCA9554ADBR datasheet(9/39 Pages) TI1

Part #	TCA9554ADBR

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

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Manufacturer	TI1 [Texas Instruments]

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Number of I/Os Held Low (#)

0

1

2

3

4

5

6

7

8

0

50

100

150

200

250

300

350

400

450

500

550

600

D001

25qC

85qC

-40qC

(VCC - VOH) - Output High Voltage (V)

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0

10

20

30

40

50

60

70

D007

1.8 V

2.5 V

3.3 V

5 V

VCC - Supply Voltage (V)

0

1

2

3

4

5

6

0

1

2

3

4

5

6

D008

IOH = -8 mA

IOH = -10 mA

TCA9554A

www.ti.com

SCPS196D – DECEMBER 2010 – REVISED AUGUST 2015

Typical Characteristics (continued)

TA = 25°C (unless otherwise noted)

TA = 25°C

Figure 7. Source Current (IOH) vs. Output High Voltage (VOH)

Figure 8. Output High Voltage (VOH) vs. Supply Voltage

for P-Ports at Four Supply Voltages

(VCC) for P-Ports

VCC = 5 V

Figure 9. Supply Current (ICC) vs. Number of I/Os Held Low (#)

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