MCP23017 查看數據表（PDF） - Microchip Technology

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MCP23017

16-Bit I/O Expander with Serial Interface

Microchip Technology 

MCP23017/MCP23S17

1.1 DC Characteristics

TABLE 1-1: DC CHARACTERISTICS

Electrical Specifications: Unless otherwise noted, 1.8V VDD  5.5V at -40C  TA  +125C

Param.

No.

Characteristic

Sym.

Min.

Typ.(1) Max. Units

Conditions

D001 Supply Voltage

VDD

1.8

D002 VDD Start Voltage to

VPOR

—

ensure Power-on Reset

—

5.5

V

VSS

—

V

D003 VDD Rise Rate to ensure SVDD

0.05

Power-on Reset

—

—

V/ms Design guidance only.

Not tested.

D004 Supply Current

D005 Standby current

IDD

—

IDDS8

—

—

—

1

mA SCL/SCK = 1 MHz

—

1

µA -40°C  TA  +85°C

—

3

µA 4.5V VDD 5.5V

+85°C  TA +125C

(Note 1)

Input Low Voltage

D030 A0, A1, A2 (TTL buffer)

VIL

VSS

D031 CS, GPIO, SCL/SCK,

VIL

VSS

SDA, RESET

(Schmitt Trigger)

— 0.15 VDD V

— 0.2 VDD V

Input High Voltage

D040 A0, A1, A2 (TTL buffer)

VIH 0.25 VDD + 0.8 —

VDD

V

D041 CS, GPIO, SCL/SCK,

SDA, RESET

VIH

0.8 VDD

—

VDD

V For entire VDD range

(Schmitt Trigger)

Input Leakage Current

D060 I/O port pins

Output Leakage Current

IIL

—

—

±1

µA VSS VPIN VDD

D065 I/O port pins

D070 GPIO weak pull-up

current

Output Low-Voltage

ILO

—

IPU

40

—

±1

µA VSS VPIN VDD

75

115

µA VDD = 5V

GP pins = VSS

D080 GPIO

INT

SO, SDA

SDA

Output High-Voltage

VOL

—

VOL

—

VOL

—

VOL

—

—

0.6

V IOL = 8.0 mA

VDD = 4.5V

—

0.6

V IOL = 1.6 mA

VDD = 4.5V

—

0.6

V IOL = 3.0 mA

VDD = 1.8V

—

0.8

V IOL = 3.0 mA

VDD = 4.5V

D090 GPIO, INT, SO

VOH

VDD – 0.7

—

—

V IOH = -3.0 mA

VDD = 4.5V

VDD – 0.7

—

—

IOH = -400 µA

VDD = 1.8V

Capacitive Loading Specs on Output Pins

D101 GPIO, SO, INT

CIO

—

—

D102 SDA

CB

—

—

Note 1: This parameter is characterized, not 100% tested.

50

pF

400

pF

DS20001952C-page 4

 2005-2016 Microchip Technology Inc.

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