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

1.2 AC Characteristics

FIGURE 1-1:

LOAD CONDITIONS FOR DEVICE TIMING SPECIFICATIONS

SCL and

SDA pin

MCP23017

VDD

1 k

135 pF

Pin

50 pF

FIGURE 1-2:

VDD

RESET

Internal

RESET

RESET AND DEVICE RESET TIMER TIMING

30

32

34

Output pin

TABLE 1-2: DEVICE RESET SPECIFICATIONS

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

Param.

No.

Characteristic

Sym. Min. Typ. (1) Max. Units

Conditions

30 RESET Pulse Width

(Low)

TRSTL

1

—

—

µs

32 Device Active After Reset THLD

—

0

—

ns VDD = 5.0V

high

34 Output High-Impedance TIOZ

—

—

1

µs

From RESET Low

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

 2005-2016 Microchip Technology Inc.

DS20001952C-page 5

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