LTC4301LCMS8

Series: -
Internal Switch(s): Yes
Current Limit: -
Mounting Type: Surface Mount
Type: Hot-Swap Switch
Packaging: Tube
Package / Case: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Supplier Device Package: 8-MSOP
Operating Temperature: 0°C ~ 70°C
Manufacturer: Linear Technology
Applications: General Purpose, Buffer/Bus Extender
Voltage - Supply: 2.7 V ~ 5.5 V


Features:

Level Translates 1V Signals to Standard 3.3V and 5V Logic Rails
Allows Bus Pull-Up Voltages as Low as 1V on SDAIN and SCLIN
Bidirectional Buffer* for SDA and SCL Lines Increases Fanout
Prevents SDA and SCL Corruption During Live Board Insertion and Removal from Backplane
Isolates Input SDA and SCL Line from Output
10kV Human Body Model ESD Protection
Supports Clock Stretching, Arbitration and Synchronization
High Impedance SDA, SCL Pins for V_CC = 0V
CS Gates Connection from Input to Output
Compatible with I²C^TM, I²C Fast Mode and SMBus Standards (Up to 400kHz Operation)
Small 8-Pin MSOP and DFN (3mm*3mm) Packages


Application

Hot Board Insertion
Servers
Capacitance Buffer/Bus Extender
Desktop Computers


Pinout

Specifications

V_CC to GND ................................................. 0.3V to 7V
SDAIN, SCLIN, SDAOUT, SCLOUT, CS .......... 0.3V to 7V
READY ......................................................... 0.3V to 6V
Operating Temperature Range
    LTC4301LC ............................................. 0°C to 70°C
    LTC4301LI............................................... 40°C to 85°C
Storage Temperature Range
   MSOP ....................................................... 65°C to 150°C
   DFN ......................................................... 65°C to 125°C
Lead Temperature (Soldering, 10 sec)........ 300°C


Description

The LTC4301LCMS8 hot swappable, 2-wire bus buffer allows I/O card insertion into a live backplane without corruption of the data and clock busses. In addition, the LTC4301LCMS8 SDAIN and SCLIN pins are compatible with systems with pull-up voltages as low as 1V. Control circuitry prevents the backplane from being connected to the card until a stop bit or a bus idle is present. When the connection is made, the LTC4301LCMS8 provides bidirectional buffering, keeping the backplane and card capacitances isolated.

When driven low, the CS input pin allows the part to connect after a stop bit or bus idle occurs. Driving CS high breaks the connection between SCLIN and SCLOUT and between SDAIN and SDAOUT. A logic high on READY of LTC4301LCMS8 indicates that the backplane and card sides are connected together.

The LTC4301LCMS8 is offered in 8-pin DFN (3mm ×3mm) and MSOP packages

Parameters:

Technical/Catalog Information	LTC4301LCMS8
Vendor	Linear Technology
Category	Integrated Circuits (ICs)
Applications	General Purpose, Buffer/Bus Extender
Type	Hot-Swap Switch
Package / Case	8-MSOP, Micro8?, 8-uMAX, 8-uSOP,
Packaging	Tube
Current Limit	-
Internal Switch(s)	Yes
Operating Temperature	0°C ~ 70°C
Voltage - Supply	2.7 V ~ 5.5 V
Drawing Number	161; 05-08-1660; MS, MS8; 8
Lead Free Status	Contains Lead
RoHS Status	RoHS Non-Compliant
Other Names	LTC4301LCMS8 LTC4301LCMS8