IDT74FST32384

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IDT74FST32384 - IDT74FST32384

IDT74FST32384 10-BIT OCTAL SWITCH
10-BIT SWITCH
IDT74FST32384
FEATURES:
switches provide zero delay paths Extended commercial range -40°C +85°C switch on-resistance: TTL-compatible input output levels 2000V MIL-STD-883, Method 3015; 200V using machine model 200pF, Available QSOP, TSSOP, SOIC, PDIP Packages
generate little noise their while providing resistance path external driver. These devices connect input output ports through n-channel FET. When gate-to-source junction this adequately forward-biased device conducts resistance between input output ports small. Without adequate bias gate-to-source junction FET, turned off, therefore with applied, device insertion capability. on-resistance simplicity connection between input output ports reduces delay this path close zero. FST32384 integrates terminating resistors device, thus eliminating need external series resistors. FST32384 10-bit TTL-compatible switch. pins provide enable control controls lower 5-bits controls upper 5-bits.
DESCRIPTION:
FST32384 belongs IDT's family switches. Switch devices perform function connecting isolating ports without providing inherent current sink source capability. Thus they
FUNCTIONAL BLOCK DIAGRAM
CONFIGURATION
P24-1 SO24-2 SO24-8 SO24-9
PDIP/ SOIC/ QSOP/ TSSOP VIEW
1999 Integrated Device Technology, Inc.
OCTOBER 1999
DSC-5524/-
IDT74FST32384 10-BIT OCTAL SWITCH
ABSOLUTE MAXIMUM RATINGS(1)
Symbol VTERM(2) TSTG IOUT Rating Terminal Voltage with Respect Storage Temperature Maximum Continuous Channel Current Max. -0.5 +150 Unit
LINK
DESCRIPTION
Names A0-9 B0-9 BEA, Description Buses Buses Switch Enable (Active LOW)
NOTES: Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS cause permanent damage device. This stress rating only functional operation device these other conditions above those indicated operational sections this specification implied. Exposure absolute maximum rating conditions extended periods affect reliability. Vcc, Control, Switch terminals.
FUNCTION TABLE
B0-4 Hi-Z A0-4 Hi-Z A0-4
B5-9 Hi-Z Hi-Z A5-9 A5-9 Description Disconnect Connect Connect Connect
CAPACITANCE
Conditions(2) Switch Typ. Unit
Symbol Parameter Control Input Capacitance CI/O Switch Input/Output Capacitance
NOTE: HIGH Voltage level Voltage Level High-Impedence
NOTES: Capacitance characterized tested. 25°C, 1MHz, VOUT
ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified: Operating Conditions: -40°C +85°C, 5.0V
Symbol IOZH IOZL Parameter Input HIGH Voltage Input Voltage Input HIGH Current Input Voltage High Impedance Output Current (3-State Output pins) Short Circuit Current Clamp Diode Voltage Switch Resistance(4) Max., GND(3) Min., -18mA Min., 0.0V, 30mA Min., 2.4V, 15mA 4.5V Max., Max. Test Conditions(1) Guaranteed Logic HIGH Control Inputs Guaranteed Logic Control Inputs Max. Min. Typ.(2)
-0.7
Max.
-1.2
Unit
LINK
IOFF
Input/Output Power Leakage Quiescent Power Supply Current
NOTES: conditions shown Max. Min., appropriate value specified under Electrical Characteristics applicable device type. Typical values 5.0V, +25°C ambient. more than output should tested time. Duration test should exceed second. Measured voltage drop between ports indicated current through switch.
IDT74FST32384 10-BIT OCTAL SWITCH
POWER SUPPLY CHARACTERISTICS
Symbol ICCD Parameter Quiescent Power Supply Current Inputs HIGH Dynamic Power Supply Current(4) Test Conditions(1) Max. 3.4V(3) Max. Outputs Open Enable Toggling Duty Cycle Max. Outputs Open Enable Toggling Switches Toggling) 10MHz Duty Cycle Min. Typ.(2) Max. Unit MHz/ Switch
Total Power Supply Current(6)
NOTES: conditions shown Max. Min., appropriate value specified under Electrical Characteristics applicable device type. Typical values 5.0V, +25°C ambient. driven input (VIN 3.4V). other inputs GND. This parameter directly testable, derived Total Power Supply Calculations. Values these conditions examples formula. These limits guaranteed tested. IQUIESCENT IINPUTS IDYNAMIC DHNT ICCD (fiN) Quiescent Current Power Supply Current High Input (VIN 3.4V) Duty Cycle Inputs High Number Inputs ICCD Dynamic Current Caused Input Transition Pair (HLH LHL) Input Frequency Number Switches Toggling currents milliamps frequencies megahertz.
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified: Operating Conditions: -40°C +85°C, 5.0V
Symbol tPLH tPHL tPZH tPZL tPHZ tPLZ |QCI| Description Data Propagation Delay Ai(3,4) Switch Turn Delay Switch Turn Delay Bi(3) Charge Injection(5,6) Condition(1) 50pF Min.(2) Typ. Max. 1.25 Unit
NOTES: test circuit waveforms. Minimum limits guaranteed tested. This parameter guaranteed design tested. switch contributes propagation delay other than delay resistance switch load capacitance. time constant switch alone order 0.25 load. Since this time constant much smaller than rise/fall times typical driving signals, adds very little propagation delay system. Propagation delay switch when used system determined driving circuit driving side switch interaction with load driven side. Measured switch turn off, load parallel with scope probe, volts. Characterized parameter. 100% tested.
IDT74FST32384 10-BIT OCTAL SWITCH
TEST CIRCUITS WAVEFORMS TEST CIRCUITS OUTPUTS
Pulse Generator D.U.T. 50pF
SWITCH POSITION
Test Switch Closed Open
LINK
7.0V
Open Drain Disable Enable Other Tests
DEFINITIONS: Load capacitance: includes probe capacitance. Termination resistance: should equal ZOUT Pulse Generator.
ctal
SET-UP, HOLD, RELEASE TIMES
DATA INPUT INPUT ASYNCHRONOUS ONTROL PRES CLEAR ETC. SYNCHRO NOUS CONTRO PRES CLEAR CLOCK ENABLE ETC. 1.5V 1.5V 1.5V 1.5V
ctal
PULSE WIDTH
-HIGH-LOW PULSE HIGH-LOW -HIGH PULSE
ctal
1.5V
1.5V
PROPAGATION DELAY
PHASE INPUT TRANSITION OUTPUT OPPOSITE HASE INPUT TRANSITION 1.5V 1.5V 1.5V
ctal
ENABLE DISABLE TIMES
ENAB DISA NTROL INPUT OUTPUT ITCH CLOSE OUTPUT HIGH ITCH OPEN 3.5V 1.5V 0.3V 0.3V 1.5V
ctal
1.5V 3.5V
NOTES: Diagram shown input Control Enable-LOW input Control DisableHIGH Pulse Generator Pulses: Rate 1.0MHz; 2.5ns; 2.5ns
IDT74FST32384 10-BIT OCTAL SWITCH
ORDERING INFORMATION
Temp. Range Device Type Package
32384
Plastic (P24-1) Small Outline (SO24-2) Quarter-size Small Outline Package (SO24-8) Thin-Shrink Small Outline Package (SO24-9) 10-Bit Switch
CORPORATE HEADQUARTERS 2975 Stender Santa Clara, 95054
SALES: 800-345-7015 408-727-6116 fax: 408-492-8674 www.idt.com*
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IDT74FST32384

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