74LCXH2245MTCX

74LCXH2245MTCX Datasheet

74LCXH2245 Low Voltage Bidirectional Transceiver with Bushold and 26 Series Resistors in B Outputs

Part	Datasheet
74LCXH2245MTCX	74LCXH2245MTCX (pdf)

Related Parts	Information
74LCXH2245MTC	74LCXH2245MTC
74LCXH2245SJX	74LCXH2245SJX
74LCXH2245SJ	74LCXH2245SJ
74LCXH2245WMX	74LCXH2245WMX
74LCXH2245MSAX	74LCXH2245MSAX
74LCXH2245WM	74LCXH2245WM
74LCXH2245MSA	74LCXH2245MSA

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74LCXH2245 Low Voltage Bidirectional Transceiver with Bushold and 26 Series Resistors in B Outputs 74LCXH2245 Low Voltage Bidirectional Transceiver with Bushold and 26 Series Resistors in B Outputs The LCXH2245 contains eight non-inverting bidirectional buffers with 3-STATE outputs and is intended for bus oriented applications. The device is designed for low voltage 2.5V and 3.3V VCC applications. The T/R input determines the direction of data flow through the device. The OE input disables both the A and B ports by placing them in a high impedance state. The 26 series resistor in the B Port output helps reduce output overshoot and undershoot. The LCXH2245 is fabricated with an advanced CMOS technology to achieve high speed operation while maintaining CMOS low power dissipation. The LCXH2245 data inputs include active bushold circuitry, eliminating the need for external pull-up resistors to hold unused or floating data inputs at a valid logic level. s 5V tolerant control inputs s VCC specifications provided s Bushold on inputs eliminates the need for external pull-up/pull-down resistors s ns tPD max VCC 3.3V , 10 PA ICC max s Power down high impedance outputs s r12 mA output drive B Port VCC 3.0V s Implements patented noise/EMI reduction circuitry s Latch-up performance exceeds 500 mA s Equivalent 26 series resistor on B Port outputs s ESD performance: Human body model ! 2000V Machine model ! 200V Ordering Code: Order Number Package Number Package Description 74LCXH2245WM M20B 20-Lead Small Outline Integrated Circuit SOIC , JEDEC MS-013, Wide 74LCXH2245SJ M20D Pb-Free 20-Lead Small Outline Package SOP , EIAJ TYPE II, 5.3mm Wide 74LCXH2245MSA MSA20 20-Lead Shrink Small Outline Package SSOP , JEDEC MO-150, 5.3mm Wide 74LCXH2245MTC MTC20 20-Lead Thin Shrink Small Outline Package TSSOP , JEDEC MO-153, 4.4mm Wide Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Pb-Free package per JEDEC J-STD-020B. Logic Symbol Connection Diagram Pin Descriptions Pin Names OE T/R Output Enable Input Transmit/Receive Input Side A Inputs or 3-STATE Outputs Bushold Side B Inputs or 3-STATE Outputs Bushold is a trademark of Fairchild Semiconductor Corporation. 2005 Fairchild Semiconductor Corporation DS500409 74LCXH2245 Truth Table H HIGH Voltage Level L LOW Voltage Level X Immaterial Z High Impedance Logic Diagram Inputs Outputs Bus B0 B7 Data to Bus A0 A7 Bus A0 A7 Data to Bus B0 B7 HIGH Z State on A0 A7, B0 B7 74LCXH2245 Absolute Maximum Ratings Note 1 Parameter Supply Voltage T/R, OE, I/O Ports DC Output Voltage DC Input Diode Current DC Output Diode Current IO ICC IGND TSTG DC Output Source/Sink Current DC Supply Current per Supply Pin DC Ground Current per Ground Pin Storage Temperature Value to to VCC to VCC r50 r100 Conditions Output in HIGH or LOW State Note 2 VI GND VO GND VO ! VCC Units V mA qC Recommended Operating Conditions Note 3 Parameter Units Supply Voltage Operating Data Retention Input Voltage Output Voltage

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74LCXH2245 Low Voltage Bidirectional Transceiver with Bushold and 26 Series Resistors in B Outputs
74LCXH2245

Low Voltage Bidirectional Transceiver with Bushold and 26 Series Resistors in B Outputs

The LCXH2245 contains eight non-inverting bidirectional buffers with 3-STATE outputs and is intended for bus oriented applications. The device is designed for low voltage 2.5V and 3.3V VCC applications. The T/R input determines the direction of data flow through the device. The OE input disables both the A and B ports by placing them in a high impedance state. The 26 series resistor in the B Port output helps reduce output overshoot and undershoot.

The LCXH2245 is fabricated with an advanced CMOS technology to achieve high speed operation while maintaining CMOS low power dissipation.

The LCXH2245 data inputs include active bushold circuitry, eliminating the need for external pull-up resistors to hold unused or floating data inputs at a valid logic level.
s 5V tolerant control inputs s VCC specifications provided s Bushold on inputs eliminates the need for external
pull-up/pull-down resistors s ns tPD max VCC 3.3V , 10 PA ICC max s Power down high impedance outputs s r12 mA output drive B Port VCC 3.0V s Implements patented noise/EMI reduction circuitry s Latch-up performance exceeds 500 mA s Equivalent 26 series resistor on B Port outputs s ESD performance:

Human body model ! 2000V Machine model ! 200V
Ordering Code:

Order Number Package Number

Package Description
74LCXH2245WM

M20B
20-Lead Small Outline Integrated Circuit SOIC , JEDEC MS-013, Wide
74LCXH2245SJ

M20D

Pb-Free 20-Lead Small Outline Package SOP , EIAJ TYPE II, 5.3mm Wide
74LCXH2245MSA

MSA20
20-Lead Shrink Small Outline Package SSOP , JEDEC MO-150, 5.3mm Wide
74LCXH2245MTC

MTC20
20-Lead Thin Shrink Small Outline Package TSSOP , JEDEC MO-153, 4.4mm Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Pb-Free package per JEDEC J-STD-020B.

Logic Symbol

Connection Diagram

Pin Descriptions

Pin Names

OE T/R

Output Enable Input Transmit/Receive Input Side A Inputs or 3-STATE Outputs Bushold Side B Inputs or 3-STATE Outputs Bushold
is a trademark of Fairchild Semiconductor Corporation. 2005 Fairchild Semiconductor Corporation DS500409
74LCXH2245

Truth Table

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

Logic Diagram

Inputs

Outputs

Bus B0 B7 Data to Bus A0 A7 Bus A0 A7 Data to Bus B0 B7 HIGH Z State on A0 A7, B0 B7
74LCXH2245

Absolute Maximum Ratings Note 1

Parameter

Supply Voltage

T/R, OE,

I/O Ports

DC Output Voltage

DC Input Diode Current

DC Output Diode Current

IO ICC IGND TSTG

DC Output Source/Sink Current DC Supply Current per Supply Pin DC Ground Current per Ground Pin Storage Temperature

Value to
to VCC
to VCC r50 r100

Conditions

Output in HIGH or LOW State Note 2 VI GND VO GND VO ! VCC

Units V
mA qC

Recommended Operating Conditions Note 3

Parameter

Units

Supply Voltage

Operating

Data Retention

Input Voltage

Output Voltage

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Datasheet ID: 74LCXH2245MTCX 513392