Datasheet 搜索 > 逻辑控制器 > TI（德州仪器） > TCA9517ADGKR 数据手册 > TCA9517ADGKR 数据手册 1/24 页
器件3D模型￥ 2.202
TCA9517ADGKR 数据手册 - TI（德州仪器）
制造商:
TI（德州仪器）
分类:
逻辑控制器
封装:
VSSOP-8
描述:
电平转换I2C总线中继器 LEVEL-TRANSLATING I2C BUS REPEATER
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
引脚图在P4Hot
典型应用电路图在P12P13P14P15
原理图在P1P10P12
封装尺寸在P18P20P21
标记信息在P18
封装信息在P17P18P19P20P21
技术参数、封装参数在P4
应用领域在P1P24
电气规格在P6
导航目录
TCA9517ADGKR数据手册
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TCA9517A
GND
4
1
VCCA
3 SDAA
2 SCLA
7SCLB
6SDAB
I
2
C or SMBus Master
(e.g. Processor)
5 EN
8
VCCB
I
2
C Slave Devices
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TCA9517A
SCPS245B –DECEMBER 2012–REVISED JUNE 2015
TCA9517A Level-Shifting I
2
C Bus Repeater
1 Features 3 Description
The TCA9517A is a bidirectional buffer with level
1
• Two-Channel Bidirectional Buffer
shifting capabilities for I
2
C and SMBus systems. It
• I
2
C Bus and SMBus Compatible
provides bidirectional voltage-level translation (up-
• Operating Supply Voltage Range of 0.9 V to 5.5 V
translation/down-translation) between low voltages
on A-side
(down to 0.9 V) and higher voltages (2.7 V to 5.5 V)
in mixed-mode applications. This device enables I
2
C
• Operating Supply Voltage Range of 2.7 V to 5.5 V
and SMBus systems to be extended without
on B-side
degradation of performance, even during level
• Voltage-Level Translation From 0.9 V - 5.5 V to
shifting.
2.7 V - 5.5 V
The TCA9517A buffers both the serial data (SDA)
• Footprint and Functional Replacement for
and the serial clock (SCL) signals on the I
2
C bus,
PCA9515B
thus allowing two buses of up to 400-pF bus
• Active-High Repeater-Enable Input
capacitance to be connected in an I
2
C application.
• Open-Drain I
2
C I/O
The TCA9517A has two types of drivers: A-side
• 5.5-V Tolerant I
2
C and Enable Input Support
drivers and B-side drivers. All inputs and I/Os are
Mixed-Mode Signal Operation
over-voltage tolerant to 5.5 V, even when the device
is unpowered (V
CCB
and/or V
CCA
= 0 V).
• Accommodates Standard Mode and Fast Mode
I
2
C Devices and Multiple Masters
The TCA9517A offers a higher contention level
threshold, V
ILC
, than the TCA9517, which allows
• High-Impedance I
2
C Pins When Powered-Off
connections to slaves which have weaker pulldown
• Latch-Up Performance Exceeds 100 mA Per
ability.
JESD 78, Class II
• ESD Protection Exceeds JESD 22
Device Information
(1)
– 5500 V Human-Body Model (A114-A)
PART NUMBER PACKAGE BODY SIZE (NOM)
TCA9517A VSSOP (8) 3.00 mm × 3.00 mm
– 200 V Machine Model (A115-A)
– 1000 V Charged-Device Model (C101)
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
2 Applications
• Servers
• Routers (Telecom Switching Equipment)
• Industrial Equipment
• Products with Many I
2
C Slaves and/or Long PCB
Traces
Simplified Schematic
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
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