April 2002 Revised 2002 74LCXH32245 Voltage 32-Bit Bidirectional

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April 2002 Revised 2002 74LCXH32245 Voltage 32-Bit Bidirectional

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74LCXH32245 Voltage 32-Bit Bidirectional Transceiver with Tolerant Inputs Outputs with Bushold
April 2002 Revised 2002
74LCXH32245 Voltage 32-Bit Bidirectional Transceiver with Tolerant Inputs Outputs with Bushold
LCXH32245 contains thirty-two non-inverting bidirectional buffers with 3-STATE outputs intended oriented applications. device designed voltage (2.5V 3.3V) applications with capability interfacing signal environment. device byte controlled. Each byte separate control inputs which could shorted together full 32-bit operation. inputs determine direction data flow through device. inputs disable both ports placing them high impedance state. series resistor Port output helps reduce output overshoot undershoot. LCXH32245 data inputs include bushold, eliminating need external pull-up/down resistors hold unused inputs. LCXH32245 fabricated with advanced CMOS technology achieve high speed operation while maintaining CMOS power dissipation.
Features
tolerant inputs outputs 2.3V 3.6V specifications provided (VCC 3.3V), Power-off high impedance inputs outputs Equivalent series resistor Port outputs Bushold inputs eliminates need external pull-up/down resistors Supports live insertion/withdrawal (Note output drive (VCC 3.0V) Uses patented noise/EMI reduction circuitry Latch-up performance exceeds performance: Human body model 2000V Machine model 200V Packaged plastic Fine-Pitch Ball Grid Array (FBGA)
Note ensure high-impedance state during power-up down, should tied through pull-up resistor: minimum value resistor determined current-sourcing capability driver.
Ordering Code:
Order Number 74LCXH32245G (Note (Note Package Number BGA96A Package Description 96-Ball Fine-Pitch Ball Grid Array (FBGA), JEDEC MO-205, 5.5mm Wide
Note Ordering Code indicates Trays. Note Devices also available Tape Reel. Specify appending suffix letter ordering code.
Logic Symbol
2002 Fairchild Semiconductor Corporation
DS500727
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74LCXH32245
Connection Diagram
Descriptions
Names T/Rn A0-A31 B0-B31 Description Output Enable Input (Active LOW) Transmit/Receive Input Side Inputs/3-STATE Outputs Side Inputs/3-STATE Outputs
FBGA Assignments
(Top Thru View) T/R1 VCC1 VCC1 T/R2 T/R3 VCC2 VCC2 T/R4 VCC1 VCC1 VCC2 VCC2
Truth Tables
Inputs Inputs T/R2 Outputs B8-B15 Data A8-A15 A8-A15 Data B8-B15 HIGH-Z State A8-A15,B8-B15 T/R1 Outputs B0-B7 Data A0-A7 A0-A7 Data B0-B7 HIGH-Z State A0-A7,B0-B7 Inputs Inputs T/R4 Outputs B24-B31 Data A24-A31 B24-A31 Data B24-B31 HIGH-Z State A24-A31,B24-B31 T/R3 Outputs B16-B23 Data A16-A23 A16-A23 Data B16-B23 HIGH-Z State A16-A23,B16-B23
HIGH Voltage Level Voltage Level Immaterial High Impedance
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74LCXH32245
Logic Diagrams
Note: Please note that these diagrams provided only understanding logic operations should used estimate propagation delays.
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74LCXH32245
Absolute Maximum Ratings(Note
Symbol IGND TSTG Parameter Supply Voltage T/R, Ports Output Voltage Input Diode Current Output Diode Current Output Source/Sink Current Supply Current Supply Ground Current Ground Storage Temperature Value Conditions Units Output HIGH State (Note
-0.5 +7.0 -0.5 +7.0 -0.5 -0.5 ±100 ±100 +150
Recommended Operating Conditions (Note
Symbol IOH/IOL Supply Voltage Input Voltage Output Voltage Output Current Outputs HIGH State 3-STATE 3.0V 3.6V 2.7V 3.0V 2.3V 2.7V Output Current IOH/IOL Outputs 3.0V 3.6V 2.7V 3.0V 2.3V 2.7V Free-Air Operating Temperature Input Edge Rate, 0.8V-2.0V, 3.0V Parameter Operating Data Retention Units
ns/V
Note Absolute Maximum Ratings those values beyond which safety device cannot guaranteed. device should operated these limits. parametric values defined Electrical Characteristics tables guaranteed Absolute Maximum Ratings. "Recommended Operating Conditions" table will define conditions actual device operation. Note Absolute Maximum Rating must observed. Note Floating unused control inputs must HIGH LOW. Note: external driver must source least specified current switch from LOW-to-HIGH. Note: external driver must sink least specified current switch from HIGH-to-LOW.
Electrical Characteristics
Symbol Parameter HIGH Level Input Voltage Level Input Voltage HIGH Level Output Voltage -100 Conditions -40°C +85°C Units
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74LCXH32245
Electrical Characteristics
Symbol Parameter Level Output Voltage
(Continued)
-300 -450 ±5.0 -40°C +85°C ±5.0
Conditions
Units
II(HOLD)
Input Leakage Current Bushold Input Minimum Drive Hold Current
5.5V 0.7V 1.7V 0.8V 2.0V
II(OD)
Bushold Input Over-Drive Current Change State
IOFF
3-STATE Leakage Power-Off Leakage Current Quiescent Supply Current Increase Input
5.5V 5.5V 3.6V 5.5V (Note -0.6V
2.3-3.6 2.3-3.6 2.3-3.6
Note Outputs disabled 3-STATE only.
Electrical Characteristics
-40°C +85°C, Symbol Parameter 3.3V 0.3V tPHL tPLH tPZL tPZH tPLZ tPHZ Output Disable Time Propagation Delay Output Enable Time 2.7V 2.5V 0.2V Units
Dynamic Switching Characteristics
Symbol VOLP VOLV Parameter Quiet Output Dynamic Peak Quiet Output Dynamic Valley Conditions 3.3V, 2.5V, 3.3V, 2.5V, 25°C Typical -0.8 -0.6 Units
Capacitance
Symbol CI/O Input Capacitance Input/Output Capacitance Power Dissipation Capacitance Parameter Conditions Open, 3.3V, 3.3V, VCC, Typical Units
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74LCXH32245
LOADING WAVEFORMS Generic Family
FIGURE Test Circuit includes probe capacitance) Test tPLH, tPHL tPZL, tPLZ tPZH tPHZ Switch Open 0.3V, 2.7V 0.2V
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 FIGURE Waveforms (Input Characteristics; =1MHz, 3ns) Symbol 3.3V 0.3V 1.5V 1.5V 0.3V 0.3V 2.7V 1.5V 1.5V 0.3V 0.3V
trise tfall
2.5V 0.2V VCC/2 VCC/2 0.15V 0.15V
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74LCXH32245
Schematic Diagram Generic Family
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74LCXH32245 Voltage 32-Bit Bidirectional Transceiver with Tolerant Inputs Outputs with Bushold
Physical Dimensions inches (millimeters) unless otherwise noted
96-Ball Fine-Pitch Ball Grid Array (FBGA), JEDEC MO-205, 5.5mm Wide Package Number BGA96A
Fairchild does assume responsibility circuitry described, circuit patent licenses implied Fairchild reserves right time without notice change said circuitry specifications. LIFE SUPPORT POLICY FAIRCHILD'S PRODUCTS AUTHORIZED CRITICAL COMPONENTS LIFE SUPPORT DEVICES SYSTEMS WITHOUT EXPRESS WRITTEN APPROVAL PRESIDENT FAIRCHILD SEMICONDUCTOR CORPORATION. used herein: Life support devices systems devices systems which, intended surgical implant into body, support sustain life, whose failure perform when properly used accordance with instructions provided labeling, reasonably expected result significant injury user. www.fairchildsemi.com critical component component life support device system whose failure perform reasonably expected cause failure life support device system, affect safety effectiveness. www.fairchildsemi.com

April 2002 Revised 2002 74LCXH32245 Voltage 32-Bit Bidirectional

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