Datasheet > NCA9555B

NCA9555B

更新时间： 2024-10-29 17:00:47

品牌	Logo	应用领域
纳芯微 - NOVOSENSE		开关电源开关风扇传感器
页数	文件大小	规格书
28页	1246K
描述
NCA9555B是一款24引脚CMOS器件，提供16位通用并行I2C总线数输入/输出GPIO扩展功能。它和ACPI电源开关，传感器，按键，LED和风扇等应用的额外I/O口需求提供了简单的解决方案。

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NCA9555B 数据手册

NCA9555B

Datasheet (EN) 1.1

6. Specifications

6.1.Electrical Characteristics

VDD= 1.65V to 5.5V; Tamb = -40℃ to 125℃; V_Iis the voltage on I/O port; unless otherwise noted.

Parameters

Supplies

Symbol

Min

Typ

Max

Unit

Conditions

Supply voltage

Range

V_DD

1.65

5.5

200

µA

Operating mode; V_DD= 5.5 V; no load; f_SCL= 100 kHz

Operating mode; V_DD= 5.5 V; no load; f_SCL= 400 kHz

Supply current

I_DD

Standby mode; V_DD= 5.5 V; no load; V_I= V_SS; f_SCL= 0 kHz;

I/O = inputs

0.9

1.5

µA

Standby current I_stb

Power On Reset

Standby mode; VDD = 5.5 V; no load; V_I= V_DD; f_SCL= 0

kHz; I/O = inputs

0.2

V_PORR

0.75

1.17

1.06

1.5

no load; VI = VDD or VSS

Rising^[1]

Power On Reset

Falling^[1]

V_PORF

Input SCL; Input and Output SDA

LOW-level input

voltage

V_IL

V_IH

I_OL

I_L

-0.5

0.3*V_DD

HIGH-level input

voltage

0.7*V_DD

5.5

LOW-level

output current

-1

µA

V_DD= 1.65 V to 5.5 V; V_OL= 0.4 V

V_DD= 1.65 V to 5.5 V; V_I= V_DDor V_SS

V_I= V_SS

Input

leakage

current

Input

capacitance

C_i

I/Os

LOW-level input

voltage

V_IL

-0.5

0.3*V_DD

5.5

HIGH-level input

voltage

V_IH

0.7*V_DD

VDD = 1.65 V to 5.5 V; VOL = 0.3 V^[2]

VDD = 1.65 V to 5.5 V; VOL = 0.35 V^[2]

LOW-level

output current

I_OL

Page 6

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