74ALVC245WMX

74ALVC245WMX Datasheet

74ALVC245 Low Voltage Bidirectional Transceiver with 3.6V Tolerant Inputs and Outputs

Part	Datasheet
74ALVC245WMX	74ALVC245WMX (pdf)

Related Parts	Information
74ALVC245MTCX	74ALVC245MTCX
74ALVC245MTC	74ALVC245MTC
74ALVC245WM	74ALVC245WM

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74ALVC245 Low Voltage Bidirectional Transceiver with 3.6V Tolerant Inputs and Outputs January 2008 74ALVC245 Low Voltage Bidirectional Transceiver with 3.6V Tolerant Inputs and Outputs • 1.65V to 3.6V VCC supply operation • 3.6V tolerant inputs and outputs • Power-off high impedance inputs and outputs • Supports Live Insertion and Withdrawal 1 • tPD 3.4ns max. for 3.0V to 3.6V VCC 3.9ns max. for 2.3V to 2.7V VCC 6ns max. for 1.65V to 1.95V VCC • Uses patented Quiet noise/EMI reduction circuitry • Latchup conforms to JEDEC JED78 • ESD performance: Human body model > 2000V Machine model > 200V Note To ensure the high impedance state during power up and power down, OEn should be tied to VCC through a pull up resistor. The minimum value of the resistor is determined by the current sourcing capability of the driver. The ALVC245 contains eight non-inverting bidirectional buffers with 3-STATE outputs and is intended for bus oriented applications. The T/R input determines the direction of data flow. The OE input disables both the A and B ports by placing them in a high impedance state. The 74ALVC245 is designed for low voltage 1.65V to 3.6V VCC applications with I/O compatibility up to 3.6V. The 74ALVC245 is fabricated with an advanced CMOS technology to achieve high-speed operation while maintaining low CMOS power dissipation. Ordering Information Order Number Package Number Package Description 74ALVC245WM 74ALVC245MTC M20B MTC20 20-Lead Small Outline Integrated Circuit SOIC , JEDEC MS-013, Wide 20-Lead Thin Shrink Small Outline Package TSSOP , JEDEC MO-153, 4.4mm Wide Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering number. All packages are lead free per JEDEC J-STD-020B standard. 74ALVC245 Low Voltage Bidirectional Transceiver with 3.6V Tolerant Inputs and Outputs Connection Diagram Logic Symbol Pin Description Pin Names OE T/R Output Enable Input Active LOW Transmit/Receive Input Side A Inputs or 3-STATE Outputs Side B Inputs or 3-STATE Outputs Logic Diagram Truth Table Inputs Outputs OE T/R L Bus Data to Bus H Bus Data to Bus X HIGH Z State on H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Z = High Impedance Note Unused bus terminals during HIGH Z State must be held HIGH or LOW. 2001 Fairchild Semiconductor Corporation 74ALVC245 Low Voltage Bidirectional Transceiver with 3.6V Tolerant Inputs and Outputs Absolute Maximum Ratings Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only. Parameter Supply Voltage DC Input Voltage Output Voltage 3 DC Input Diode Current, VI < 0V DC Output Diode Current, VO < 0V IOH/IOL DC Output Source/Sink Current ICC or GND DC VCC or GND Current per Supply Pin TSTG Storage Temperature Range Rating −0.5V to +4.6V −0.5V to 4.6V −0.5V to VCC +0.5V −50mA −50mA ±50mA ±100mA −65°C to +150°C Note IO Absolute Maximum Rating must be observed, limited to 4.6V. Recommended Operating Conditions 4 The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not recommend exceeding them or designing to absolute maximum ratings. Parameter VCC VI VO TA / Supply Voltage Input Voltage Output Voltage Free Air Operating Temperature Minimum Input Edge Rate VIN = 0.8V to 2.0V, VCC = 3.0V

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74ALVC245 Low Voltage Bidirectional Transceiver with 3.6V Tolerant Inputs and Outputs

January 2008
74ALVC245 Low Voltage Bidirectional Transceiver with 3.6V Tolerant Inputs and Outputs
• 1.65V to 3.6V VCC supply operation
• 3.6V tolerant inputs and outputs
• Power-off high impedance inputs and outputs
• Supports Live Insertion and Withdrawal 1
• tPD 3.4ns max. for 3.0V to 3.6V VCC 3.9ns max. for 2.3V to 2.7V VCC 6ns max. for 1.65V to 1.95V VCC
• Uses patented Quiet noise/EMI reduction circuitry
• Latchup conforms to JEDEC JED78
• ESD performance:

Human body model > 2000V Machine model > 200V Note To ensure the high impedance state during power up and power down, OEn should be tied to VCC through a pull up resistor. The minimum value of the resistor is determined by the current sourcing capability of the driver.

The ALVC245 contains eight non-inverting bidirectional buffers with 3-STATE outputs and is intended for bus oriented applications. The T/R input determines the direction of data flow. The OE input disables both the A and B ports by placing them in a high impedance state.

The 74ALVC245 is designed for low voltage 1.65V to 3.6V VCC applications with I/O compatibility up to 3.6V.

The 74ALVC245 is fabricated with an advanced CMOS technology to achieve high-speed operation while maintaining low CMOS power dissipation.
Ordering Information

Order Number

Package Number

Package Description
74ALVC245WM 74ALVC245MTC

M20B MTC20
20-Lead Small Outline Integrated Circuit SOIC , JEDEC MS-013, Wide
20-Lead Thin Shrink Small Outline Package TSSOP , JEDEC MO-153, 4.4mm Wide
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering number.

All packages are lead free per JEDEC J-STD-020B standard.
74ALVC245 Low Voltage Bidirectional Transceiver with 3.6V Tolerant Inputs and Outputs

Connection Diagram

Logic Symbol

Pin Description

Pin Names OE T/R

Output Enable Input Active LOW Transmit/Receive Input Side A Inputs or 3-STATE Outputs Side B Inputs or 3-STATE Outputs

Logic Diagram

Truth Table

Inputs

Outputs

OE T/R

L Bus Data to Bus

H Bus Data to Bus

X HIGH Z State on

H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Z = High Impedance

Note Unused bus terminals during HIGH Z State must be
held HIGH or LOW.
2001 Fairchild Semiconductor Corporation
74ALVC245 Low Voltage Bidirectional Transceiver with 3.6V Tolerant Inputs and Outputs

Absolute Maximum Ratings

Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only.

Parameter

Supply Voltage

DC Input Voltage

Output Voltage 3

DC Input Diode Current, VI < 0V

DC Output Diode Current, VO < 0V

IOH/IOL DC Output Source/Sink Current

ICC or GND DC VCC or GND Current per Supply Pin

TSTG Storage Temperature Range

Rating −0.5V to +4.6V −0.5V to 4.6V
−0.5V to VCC +0.5V −50mA −50mA ±50mA
±100mA −65°C to +150°C

Note IO Absolute Maximum Rating must be observed, limited to 4.6V.

Recommended Operating Conditions 4

The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not recommend exceeding them or designing to absolute maximum ratings.

Parameter

VCC VI VO TA /

Supply Voltage Input Voltage Output Voltage Free Air Operating Temperature Minimum Input Edge Rate VIN = 0.8V to 2.0V, VCC = 3.0V

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Datasheet ID: 74ALVC245WMX 513245