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TCA6416

更新时间： 2024-09-26 03:28:43
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德州仪器 - TI 输出元件
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31页 782K
描述
LOW-VOLTAGE 16-BIT I2C AND SMBus I/O EXPANDER WITH INTERRUPT OUTPUT, RESET, AND CONFIGURATION REGISTERS

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TCA6416 数据手册

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TCA6416  
LOW-VOLTAGE 16-BIT I2C AND SMBus I/O EXPANDER  
WITH INTERRUPT OUTPUT, RESET, AND CONFIGURATION REGISTERS  
www.ti.com  
SCPS153–DECEMBER 2007  
1
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  
Noise Filter on SCL/SDA Inputs  
1.8-V, 2.5-V, 3.3-V, or 5-V P Port  
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)  
PW PACKAGE  
(TOP VIEW)  
RTW PACKAGE  
(TOP VIEW)  
ZQS PACKAGE  
(TOP VIEW)  
1
24 VCCP  
INT  
VCCI  
RESET  
P00  
2
23  
SDA  
3
22  
SCL  
24 23 22 21 20 19  
4
21  
20  
19  
18  
ADDR  
P17  
E
1
2
3
4
5
6
18  
17  
16  
15  
14  
13  
P00  
P01  
P02  
P03  
P04  
P05  
ADDR  
P17  
P16  
P15  
P14  
P13  
5
P01  
D
C
B
A
6
P02  
P16  
7
P03  
P15  
8
P04  
17 P14  
16  
15 P12  
9
P05  
P13  
10  
11  
12  
P06  
7
8
9 10 11 12  
5
4
3
2
1
P07  
P11  
P10  
14  
13  
GND  
DESCRIPTION/ORDERING INFORMATION  
This 16-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)].  
The major benefit of this device is its wide VCC range. It can operate from 1.65 V to 5.5 V on the P-port side and  
on the SDA/SCL side. This allows the TCA6416 to interface with next-generation microprocessors and  
microcontrollers on the SDA/SCL side, where supply levels are dropping down to conserve power. In contrast to  
the dropping power supplies of microprocessors and microcontrollers, some PCB components, such as LEDs,  
remain at a 5-V power supply.  
1
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.  
PRODUCT PREVIEW information concerns products in the  
Copyright © 2007, Texas Instruments Incorporated  
formative or design phase of development. Characteristic data and  
other specifications are design goals. Texas Instruments reserves  
the right to change or discontinue these products without notice.  
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