Rainbow-electronics DS4520 Manual do Utilizador descarregar pdf (Página 4)

DS4520

9-Bit I

C Nonvolatile

I/O Expander Plus Memory

4 _____________________________________________________________________

Typical Operating Characteristics

= +5.0V, T

= +25°C, unless otherwise noted.)

SUPPLY CURRENT vs. SUPPLY VOLTAGE

DS4520 toc01

SUPPLY VOLTAGE (V)

SUPPLY CURRENT (µA)

4.54.03.5

0.5

1.0

1.5

2.0

3.0 5.0

I/O0–I/O7 CONTROL BITS = 0

I/O0–I/O7 PULLUPS DISABLED

= SDA = SCL

SUPPLY CURRENT vs. TEMPERATURE

DS4520 toc02

TEMPERATURE (°C)

SUPPLY CURRENT (µA)

806040200-20

0.5

1.0

1.5

2.0

2.5

-40

I/O0–I/O7 CONTROL BITS = 0

I/O0–I/O7 PULLUPS DISABLED

= SDA = SCL = 5V

SUPPLY CURRENT vs. SCL FREQUENCY

DS4520 toc03

SCL FREQUENCY (kHz)

SUPPLY CURRENT (µA)

300200100

0400

= SDA = 5V

I/O OUTPUT VOLTAGE

vs. SUPPLY VOLTAGE

DS4520 toc04

SUPPLY VOLTAGE (V)

I/O VOLTAGE (V)

54321

PULLUPS ENABLED

PULLDOWNS DISABLED

HIGH IMPEDANCE

EEPROM RECALL AT V

POR

1 2 3 4 5 6 7 8 9 10

C Nonvolatile 1
I/O Expander Plus Memory 1

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