DS4550 datasheet(5/18 Pages) DALLAS

Part #	DS4550

Description	I2C and JTAG Nonvolatile 9-Bit I/O Expander Plus Memory

PDF	18 Pages

Scroll/Zoom	100%

Manufacturer	DALLAS [Dallas Semiconductor]

Direct Link	https://www.maximintegrated.com/en.html

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5 / 18 page

I2C and JTAG Nonvolatile 9-Bit I/O

Expander Plus Memory

_____________________________________________________________________

SUPPLY CURRENT

vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

4.5

3.5

0.5

1.5

2.5

5.5

I/O0-I/O7 CONTROL BITS = 0

I/O0-I/O7 PULLUPS DISABLED

VCC = SDA = SCL = TCK

SUPPLY CURRENT

vs. TEMPERATURE

TEMPERATURE (°C)

-20

0.5

1.5

2.5

-40

VCC = SDA = SCL = 5.5V = TCK

VCC = SDA = SCL = 2.7V = TCK

I/O0-I/O7 CONTROL BITS = 0

I/O0-I/O7 PULLUPS DISABLED

SUPPLY CURRENT

vs. SCL FREQUENCY

SCL FREQUENCY (kHz)

300

200

100

0400

VCC = SDA = TCK = 5.0V

VCC = SDA = TCK = 2.7V

SUPPLY CURRENT

vs. TCK FREQUENCY

TCK FREQUENCY (kHz)

1750

1500

1250

1000

750

500

250

02000

VCC = 5.0V

VCC = 2.7V

SDA = SCL = VCC

I/O OUTPUT VOLTAGE

vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

PULL-UPS ENABLED

PULL-DOWNS DISABLED

HIGH IMPEDANCE

EEPROM RECALL AT VPOR

Typical Operating Characteristics

(VCC = +5.0V, TA = +25°C; TDI, TDO, TMS pins are no connects, unless otherwise noted.)

DS4550 Datasheet(PDF) 5 Page - Dallas Semiconductor

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