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TCA6408

更新时间： 2024-09-25 03:28:43
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德州仪器 - TI 输出元件
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30页 842K
描述
LOW-VOLTAGE 8-BIT I2C AND SMBus I/O EXPANDER WITH INTERRUPT OUTPUT, RESET, AND CONFIGURATION REGISTERS

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TCA6408 数据手册

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TCA6408  
LOW-VOLTAGE 8-BIT I2C AND SMBus I/O EXPANDER  
WITH INTERRUPT OUTPUT, RESET, AND CONFIGURATION REGISTERS  
www.ti.com  
SCPS151C–FEBRUARY 2007–REVISED JUNE 2007  
FEATURES  
•
Operating Power-Supply Voltage Range of  
1.65 V to 5.5 V  
•
•
•
•
•
•
•
•
5-V Tolerant I/O Ports  
Active-Low Reset Input (RESET)  
Open-Drain Active-Low Interrupt Output (INT)  
400-kHz Fast I2C Bus  
•
Allows Bidirectional Voltage-Level Translation  
and GPIO Expansion Between  
–
–
–
–
1.8-V SCL/SDA and 1.8-V, 2.5-V,  
3.3-V, or 5-V P Port  
Input/Output Configuration Register  
Polarity Inversion Register  
2.5-V SCL/SDA and 1.8-V, 2.5-V,  
3.3-V, or 5-V P Port  
Internal Power-On Reset  
Power-Up With All Channels Configured as  
Inputs  
3.3-V SCL/SDA and 1.8-V, 2.5-V,  
3.3-V, or 5-V P Port  
•
•
•
No Glitch On Power-Up  
5-V SCL/SDA and 1.8-V, 2.5-V,  
3.3-V, or 5-V P Port  
Noise Filter on SCL/SDA Inputs  
I2C to Parallel Port Expander  
Latched Outputs With High-Current Drive  
Maximum Capability for Directly Driving LEDs  
•
•
•
Low Standby Current Consumption of 1 µA  
•
•
Latch-Up Performance Exceeds 100 mA Per  
JESD 78, Class II  
Schmitt-Trigger Action Allows Slow Input  
Transition and Better Switching Noise  
Immunity at the SCL and SDA Inputs  
ESD Protection Exceeds JESD 22  
–
–
–
2000-V Human-Body Model (A114-A)  
200-V Machine Model (A115-A)  
–
–
–
–
Vhys = 0.18 V Typ at 1.8 V  
Vhys = 0.25 V Typ at 2.5 V  
Vhys = 0.33 V Typ at 3.3 V  
Vhys = 0.5 V Typ at 5 V  
1000-V Charged-Device Model (C101)  
RGT PACKAGE  
(TOP VIEW)  
PW PACKAGE  
(TOP VIEW)  
ZXY PACKAGE  
(TOP VIEW)  
VCCI  
16  
15  
14  
13  
12  
11  
10  
9
1
2
3
4
5
6
7
8
VCCP  
SDA  
SCL  
ADDR  
1
5
2
3
4
16 15 14 13  
RESET  
SCL  
INT  
P7  
RESET  
P0  
1
2
3
4
12  
11  
10  
9
A
B
C
D
P0  
P1  
P2  
INT  
P7  
P1  
P6  
P6  
P2  
5
6
7
8
P3  
P5  
P4  
GND  
DESCRIPTION/ORDERING INFORMATION  
This 8-bit I/O expander for the two-line bidirectional bus (I2C) is designed to provide general-purpose remote I/O  
expansion for most microcontroller families via the I2C interface [serial clock (SCL) and serial data (SDA)].  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas  
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
UNLESS OTHERWISE NOTED this document contains  
Copyright © 2007, Texas Instruments Incorporated  
PRODUCTION DATA information current as of publication date.  
Products conform to specifications per the terms of Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
1234567...30

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TCA6408 替代型号

型号 品牌 替代类型 描述 数据表
TCA6408A TI

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