74LCXR2245 Voltage Bidirectional Transceiver with Tolerant Inputs
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74LCXR2245 Voltage Bidirectional Transceiver with Tolerant Inputs Outputs Series Resistors Both Ports
74LCXR2245
Voltage Bidirectional Transceiver with Tolerant Inputs Outputs Series Resistors Both Ports
Features
tolerant inputs outputs 2.3V-3.6V specifications provided 8.0ns max. (VCC 3.3V), 10µA max. Power down high impedance inputs outputs Supports live insertion/withdrawal(1) ±12mA output drive (VCC 3.0V) Implements patented noise/EMI reduction circuitry Latch-up performance exceeds 500mA Equivalent series resistor outputs performance:
General Description
LCXR2245 contains eight non-inverting bidirectional buffers with 3-STATE outputs intended oriented applications. device designed voltage (2.5V 3.3V) applications with capability interfacing signal environment. input determines direction data flow through device. input disables both ports placing them high impedance state. series resistor helps reduce output overshoot undershoot. LCXR2245 fabricated with advanced CMOS technology achieve high speed operation while maintaining CMOS power dissipation.
Human body model 2000V Machine model 200V Note: ensure high-impedance state during power down, should tied through pull-up resistor: minimum value resistor determined current-sourcing capability driver.
Ordering Information
Order Number
74LCXR2245WM 74LCXR2245SJ 74LCXR2245MSA 74LCXR2245MTC
Package Number
M20B M20D MSA20 MTC20
Package Description
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide 20-Lead Small Outline Package (SOP), EIAJ TYPE 5.3mm Wide 20-Lead Shrink Small Outline Package (SSOP), JEDEC MO-150, 5.3mm Wide 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
Device also available Tape Reel. Specify appending suffix letter ordering number. packages lead free JEDEC: J-STD-020B standard.
©2000 Fairchild Semiconductor Corporation 74LCXR2245 Rev. 1.2.0
www.fairchildsemi.com
74LCXR2245 Voltage Bidirectional Transceiver with Tolerant Inputs Outputs Series Resistors Both Ports
Connection Diagram
Logic Symbol
Truth Table
Inputs
Outputs
Data Data HIGH State B7(2)
Description
Names
A0-A7 B0-B7
Description
Output Enable Input Transmit/Receive Input Side Inputs 3-STATE Outputs Side Inputs 3-STATE Outputs
HIGH Voltage Level Voltage Level Immaterial High Impedance Note: Unused terminals during HIGH State must held HIGH LOW.
Logic Diagram
©2000 Fairchild Semiconductor Corporation 74LCXR2245 Rev. 1.2.0
www.fairchildsemi.com
74LCXR2245 Voltage Bidirectional Transceiver with Tolerant Inputs Outputs Series Resistors Both Ports
Absolute Maximum Ratings
Stresses exceeding absolute maximum ratings damage device. device function operable above recommended operating conditions stressing parts these levels recommended. addition, extended exposure stresses above recommended operating conditions affect device reliability. absolute maximum ratings stress ratings only.
Symbol
Supply Voltage Input Voltage Output Voltage Output 3-STATE Output HIGH Output Diode Current IGND TSTG
Parameter
Rating
-0.5V +7.0V -0.5V +7.0V -0.5V +7.0V
State(3)
-0.5V 0.5V -50mA -50mA +50mA ±50mA ±100mA ±100mA -65°C +150°C
Input Diode Current,
Output Source/Sink Current Supply Current Supply Ground Current Ground Storage Temperature
Note: Absolute Maximum Rating must observed.
Recommended Operating Conditions(4)
Recommended Operating Conditions table defines conditions actual device operation. Recommended operating conditions specified ensure optimal performance datasheet specifications. Fairchild does recommend exceeding them designing absolute maximum ratings.
Symbol
Supply Voltage Operating Data Retention Input Voltage Output Voltage HIGH State 3-STATE Output Current 3.0V-3.6V 2.7V-3.0V 2.3V-2.7V
Parameter
Min.
Max.
Units
Free-Air Operating Temperature Input Edge Rate, 0.8V-2.0V, 3.0V
Note: Unused inputs must held HIGH LOW. They float.
©2000 Fairchild Semiconductor Corporation 74LCXR2245 Rev. 1.2.0
www.fairchildsemi.com
74LCXR2245 Voltage Bidirectional Transceiver with Tolerant Inputs Outputs Series Resistors Both Ports
Electrical Characteristics
-40°C +85°C Symbol
Parameter
HIGH Level Input Voltage Level Input Voltage HIGH Level Output Voltage
2.3-2.7 2.7-3.6 2.3-2.7 2.7-3.6 2.3-3.6
Conditions
Units
-100µA -4mA -4mA -6mA -8mA -12mA 100µA 12mA 5.5V 5.5V, 5.5V 3.6V 5.5V(5) -0.6V 0.55 ±5.0 ±5.0
Level Output Voltage
2.3-3.6
IOFF
Input Leakage Current 3-STATE Leakage Power-Off Leakage Current Quiescent Supply Current Increase Input
2.3-3.6 2.3-3.6 2.3-3.6 2.3-3.6 2.3-3.6
Note: Outputs disabled 3-STATE only.
Electrical Characteristics
-40°C +85°C, 3.3V 0.3V, 50pF Symbol
tPHL, tPLH tPZL, tPZH tPLZ, tPHZ
2.7V, 50pF Min.
2.5V 0.2V, 30pF Min.
Parameter
Propagation Delay, Output Enable Time Output Disable Time
Min.
Max.
Max.
10.5
Max.
11.0
Units
tOSHL, tOSLH Output Output Skew(6)
Note: Skew defined absolute value difference between actual propagation delay separate outputs same device. specification applies outputs switching same direction, either HIGH-to-LOW (tOSHL) LOW-to-HIGH (tOSLH).
©2000 Fairchild Semiconductor Corporation 74LCXR2245 Rev. 1.2.0
www.fairchildsemi.com
74LCXR2245 Voltage Bidirectional Transceiver with Tolerant Inputs Outputs Series Resistors Both Ports
Dynamic Switching Characteristics
25°C Symbol
VOLP VOLV
Parameter
Quiet Output Dynamic Peak Quiet Output Dynamic Valley
Conditions
50pF, 3.3V, 30pF, 2.5V, 50pF, 3.3V, 30pF, 2.5V,
Typical
Unit
Capacitance
Symbol
COUT
Parameter
Input Capacitance Output Capacitance Power Dissipation Capacitance
Conditions
Open, 3.3V, 3.3V, VCC, 10MHz
Typical
Units
©2000 Fairchild Semiconductor Corporation 74LCXR2245 Rev. 1.2.0
www.fairchildsemi.com
74LCXR2245 Voltage Bidirectional Transceiver with Tolerant Inputs Outputs Series Resistors Both Ports
Loading Waveforms (Generic Family)
Test
tPLH, tPHL tPZL, tPLZ tPZH, tPHZ Open 0.3V 0.2V
Switch
Figure Test Circuit includes probe capacitance)
Waveform Inverting Non-Inverting Functions
3-STATE Output High Enable Disable Times Logic
Propagation Delay. Pulse Width trec Waveforms
Setup Time, Hold Time Recovery Time Logic
3-STATE Output Enable Disable Times Logic Symbol
trise tfall
3.3V 0.3V
1.5V 1.5V 0.3V 0.3V
2.7V
1.5V 1.5V 0.3V 0.3V
2.5V 0.2V
0.15V 0.15V
Figure Waveforms (Input Characteristics; 1MHz, 3ns)
©2000 Fairchild Semiconductor Corporation 74LCXR2245 Rev. 1.2.0
www.fairchildsemi.com
74LCXR2245 Voltage Bidirectional Transceiver with Tolerant Inputs Outputs Series Resistors Both Ports
www.fairchildsemi.com
Schematic Diagram (Generic Family)
©2000 Fairchild Semiconductor Corporation 74LCXR2245 Rev. 1.2.0
74LCXR2245 Voltage Bidirectional Transceiver with Tolerant Inputs Outputs Series Resistors Both Ports
Physical Dimensions
13.00 12.60 11.43
10.65 7.60 10.00 7.40 2.25
9.50
INDICATOR
0.51 0.35
0.25
1.27
1.27
0.65
LAND PATTERN RECOMMENDATION
2.65
DETAIL
0.33 0.20
0.10 SEATING PLANE
0.75 0.25 (R0.10) (R0.10)
0.30 0.10
NOTES: UNLESS OTHERWISE SPECIFIED
GAGE PLANE
0.25 1.27 0.40 (1.40)
THIS PACKAGE CONFORMS JEDEC MS-013, VARIATION ISSUE DIMENSIONS MILLIMETERS. DIMENSIONS INCLUDE MOLD FLASH BURRS. CONFORMS ASME Y14.5M-1994 LANDPATTERN STANDARD: SOIC127P1030X265-20L DRAWING FILENAME: MKT-M20BREV3
SEATING PLANE
DETAIL
SCALE:
Figure 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
Package drawings provided service customers considering Fairchild components. Drawings change manner without notice. Please note revision and/or date drawing contact Fairchild Semiconductor representative verify obtain most recent revision. Package specifications expand terms Fairchild's worldwide terms conditions, specifically warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor's online packaging area most recent package drawings:
©2000 Fairchild Semiconductor Corporation 74LCXR2245 Rev. 1.2.0
www.fairchildsemi.com
74LCXR2245 Voltage Bidirectional Transceiver with Tolerant Inputs Outputs Series Resistors Both Ports
Physical Dimensions (Continued)
Figure 20-Lead Small Outline Package (SOP), EIAJ TYPE 5.3mm Wide
Package drawings provided service customers considering Fairchild components. Drawings change manner without notice. Please note revision and/or date drawing contact Fairchild Semiconductor representative verify obtain most recent revision. Package specifications expand terms Fairchild's worldwide terms conditions, specifically warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor's online packaging area most recent package drawings:
©2000 Fairchild Semiconductor Corporation 74LCXR2245 Rev. 1.2.0
www.fairchildsemi.com
74LCXR2245 Voltage Bidirectional Transceiver with Tolerant Inputs Outputs Series Resistors Both Ports
Physical Dimensions (Continued)
Figure 20-Lead Shrink Small Outline Package (SSOP), JEDEC MO-150, 5.3mm Wide
Package drawings provided service customers considering Fairchild components. Drawings change manner without notice. Please note revision and/or date drawing contact Fairchild Semiconductor representative verify obtain most recent revision. Package specifications expand terms Fairchild's worldwide terms conditions, specifically warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor's online packaging area most recent package drawings:
©2000 Fairchild Semiconductor Corporation 74LCXR2245 Rev. 1.2.0
www.fairchildsemi.com
74LCXR2245 Voltage Bidirectional Transceiver with Tolerant Inputs Outputs Series Resistors Both Ports
Physical Dimensions (Continued)
Figure 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
Package drawings provided service customers considering Fairchild components. Drawings change manner without notice. Please note revision and/or date drawing contact Fairchild Semiconductor representative verify obtain most recent revision. Package specifications expand terms Fairchild's worldwide terms conditions, specifically warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor's online packaging area most recent package drawings:
©2000 Fairchild Semiconductor Corporation 74LCXR2245 Rev. 1.2.0
www.fairchildsemi.com
74LCXR2245 Voltage Bidirectional Transceiver with Tolerant Inputs Outputs Series Resistors Both Ports
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Rev.
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Preliminary
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©2000 Fairchild Semiconductor Corporation 74LCXR2245 Rev. 1.2.0
www.fairchildsemi.com
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