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PCA9306 Datasheet

  • PCA9306

  • DUAL BIDIRECTIONAL I2C BUS AND SMBus VOLTAGE-LEVEL TRANSLATO...

  • 201.69KB

  • 13頁

  • TI

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PCA9306
DUAL BIDIRECTIONAL I2C BUS AND SMBus VOLTAGE-LEVEL TRANSLATOR
www.ti.com
SCPS113 鈥?OCTOBER 2004 鈥?REVISED APRIL 2005
FEATURES
鈥?/div>
鈥?/div>
鈥?/div>
2-Bit Bidirectional Translator for SDA and SCL
Lines in Mixed-Mode I
2
C Applications
I
2
C and SMBus Compatible
Less Than 1.5-ns Maximum Propagation Delay
to Accommodate Standard-Mode and
Fast-Mode I
2
C Devices and Multiple Masters
Allows Voltage-Level Translator Between
鈥?1.2-V V
REF1
and 2.5-V, 3.3-V, or 5-V V
REF2
鈥?1.8-V V
REF1
and 3.3-V or 5-V V
REF2
鈥?2.5-V V
REF1
and 5-V V
REF2
鈥?3.3-V V
REF1
and 5-V V
REF2
Provides Bidirectional Voltage Translation
With No Direction Pin
Low 3.5-鈩?ON-State Connection Between
Input and Output Ports Provides Less Signal
Distortion
Open-Drain I
2
C I/O Ports (SCL1, SDA1, SCL2,
and SDA2)
5-V Tolerant I
2
C I/O Ports to Support
Mixed-Mode Signal Operation
High-Impedance SCL1, SDA1, SCL2, and
SDA2 Pins for EN = Low
PIN
1
2
3
4
5
6
7
8
SYMBOL
GND
V
REF1
SCL1
SDA1
SDA2
SCL2
V
REF2
EN
Ground, 0 V
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Lock-Up-Free Operation for Isolation When
EN = Low
Flow-Through Pinout for Ease of Printed
Circuit Board Trace Routing
Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
ESD Protection Exceeds JESD 22
鈥?2000-V Human-Body Model (A114-A)
鈥?200-V Machine Model (A115-A)
鈥?1000-V Charged-Device Model (C101)
DCT OR DCU PACKAGE
(TOP VIEW)
鈥?/div>
鈥?/div>
GND
V
REF1
SCL1
SDA1
1
2
3
4
8
7
6
5
EN
V
REF2
SCL2
SDA2
鈥?/div>
鈥?/div>
鈥?/div>
FUNCTION
Low-voltage-side reference supply voltage for SCL1 and SDA1
Serial clock, low-voltage side. Connect to V
REF1
through a pullup resistor.
Serial data, low-voltage side. Connect to V
REF1
through a pullup resistor.
Serial data, high-voltage side. Connect to V
REF2
through a pullup resistor.
Serial clock, high-voltage side. Connect to V
REF2
through a pullup resistor.
High-voltage-side reference supply voltage for SCL2 and SDA2
Switch enable input. Connected to V
REF2
and pulled up through a high
resistor.
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.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright 漏 2004鈥?005, Texas Instruments Incorporated

PCA9306 產(chǎn)品屬性

  • 50pF

  • 表面貼裝

  • 3.1mm

  • SSOP

  • 4.25 x 3.15 x 1.3mm

  • 8

  • -40 °C

  • 128mA

  • 5 V

  • 0 V

  • 1.4ns

  • +85 °C

  • 1

  • CMOS

  • 三態(tài)

  • 電平轉(zhuǎn)換器

  • 4.25mm

  • 1.3mm

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