View IDT54FCT25_216675.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

IDT54/74FCT257T/AT/CT/DT FAST CMOS QUAD 2-INPUT MULTIPLEXER
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
FAST CMOS QUAD 2-INPUT MULTIPLEXER
FEATURES:
* * * *
IDT54/74FCT257T/AT/CT/DT
DESCRIPTION:
* * * * *
Std., A, C, and D grades Low input and output leakage 1A (max.) CMOS power levels True TTL input and output compatibility: - VOH = 3.3V (typ.) - VOL = 0.3V (typ.) High Drive outputs (-15mA IOH, 48mA IOL) Meets or exceeds JEDEC standard 18 specifications Military product compliant to MIL-STD-883, Class B and DESC listed (dual marked) Power off disable outputs permit "live insertion" Available in the following packages: - Industrial: SOIC, QSOP - Military: CERDIP, LCC
The FCT257T is a high-speed quad 2-input multiplexer built using an advanced dual metal CMOS technology. Four bits of data from two sources can be selected using the common select input. The four buffered outputs present the selected data in the true (non-inverting) form. The FCT257T has a common Output Enable (OE) input. When OE is high, all outputs are switched to a high-impedance state allowing the outputs to interface directly with bus-oriented systems.
FUNCTIONAL BLOCK DIAGRAM
S
Three other multiplexers
I1B I0B
I1D I0D
ZB ZD
I 1A I 0A
ZA
OE
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
1
JUNE 2001
DSC-5500/2
(c) 2002 Integrated Device Technology, Inc.
IDT54/74FCT257T/AT/CT/DT FAST CMOS QUAD 2-INPUT MULTIPLEXER
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
PIN CONFIGURATION
NC OE
19 18 17 16 15 14 9 10 11 12 13
I0A
S I0A I1A ZA I0B I1B ZB GND
1 2 3 4 5 6 7 8
16 15 14 13 12 11 10 9
VCC OE I0C I1C ZC I0D I1D ZD
GND NC ZD I1D ZB
3 2 1 20
I1A ZA NC I0B I1B
S
INDEX
VCC
4 5 6 7 8
I0C I1C NC ZC I0D
CERDIP/ SOIC/ QSOP TOP VIEW
LCC TOP VIEW
ABSOLUTE MAXIMUM RATINGS(1)
Symbol Description Max -0.5 to +7 -0.5 to VCC+0.5 -65 to +150 -60 to +120 Unit V V C mA VTERM(2) Terminal Voltage with Respect to GND VTERM(3) Terminal Voltage with Respect to GND TSTG IOUT Storage Temperature DC Output Current
PIN DESCRIPTION
Pin Names I0A-I0D I1A-I1D OE S ZA-ZD Source 0 Data Inputs Source 1 Data Inputs Output Enable (Active LOW) Select Input Outputs Description
NOTES: 1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. No terminal voltage may exceed Vcc by +0.5V unless otherwise noted. 2. Inputs and Vcc terminals only. 3. Output and I/O terminals only.
FUNCTION TABLE(1)
Inputs OE H L S X H H L L I0 X X X L H I1 X L H X X Output Zx Z L H L H
CAPACITANCE (TA = +25C, F = 1.0MHz)
Symbol CIN COUT Parameter(1) Input Capacitance Output Capacitance Conditions VIN = 0V VOUT = 0V Typ. 6 8 Max. 10 12 Unit pF pF
L L L
NOTE: 1. This parameter is measured at characterization but not tested.
NOTE: 1. H = HIGH Voltage Level L = LOW Voltage Level X = Don't Care Z = High-Impedance
2
IDT54/74FCT257T/AT/CT/DT FAST CMOS QUAD 2-INPUT MULTIPLEXER
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified: Industrial: TA = -40C to +85C, VCC = 5.0V 5%; Military: TA = -55C to +125C, VCC = 5.0V 10%
Symbol VIH VIL IIH IIL IOZH IOZL II VIK VH ICC Parameter Input HIGH Level Input LOW Level Input HIGH Current(4) Input LOW Current(4) High Impedance Output Current (3-State output pins)(4) Input HIGH Current(4) Clamp Diode Voltage Input Hysteresis Quiescent Power Supply Current VCC = Max., VI = VCC (Max.) VCC = Min, IIN = -18mA -- VCC = Max., VIN = GND or VCC Test Conditions(1) Guaranteed Logic HIGH Level Guaranteed Logic LOW Level VCC = Max. VCC = Max. VCC = Max VI = 2.7V VI = 0.5V VO = 2.7V VO = 0.5V Min. 2 -- -- -- -- -- -- -- -- -- Typ.(2) -- -- -- -- -- -- -- -0.7 200 0.01 Max. -- 0.8 1 1 1 1 1 -1.2 -- 1 A V mV mA Unit V V A A A
OUTPUT DRIVE CHARACTERISTICS
Symbol VOH VOL IOS IOFF Parameter Output HIGH Voltage Output LOW Voltage Short Circuit Current Input/Output Power Off Leakage(5) VCC = Min VIN = VIH or VIL VCC = Min VIN = VIH or VIL VCC = Max., VO = GND(3) VCC = 0V, VIN or VO 4.5V Test Conditions(1) IOH = -8mA IOH = -15mA IOL = 48mA Min. 2.4 2 -- -60 -- Typ.(2) 3.3 3 0.3 -120 -- Max. -- -- 0.5 -225 1 Unit V V mA A
NOTES: 1. For conditions shown as Min. or Max., use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at VCC = 5.0V, +25C ambient. 3. Not more than one output should be tested at one time. Duration of the test should not exceed one second. 4. The test limit for this parameter is 5A at TA = -55C. 5. This parameter is guaranteed but not tested.
3
IDT54/74FCT257T/AT/CT/DT FAST CMOS QUAD 2-INPUT MULTIPLEXER
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
POWER SUPPLY CHARACTERISTICS
Symbol ICC ICCD Parameter Quiescent Power Supply Current TTL Inputs HIGH Dynamic Power Supply Current(4) VCC = Max. VIN = 3.4V(3) VCC = Max. Outputs Open OE = GND One Input Toggling 50% Duty Cycle VCC = Max. Outputs Open fo = 10MHz 50% Duty Cycle OE = GND One Bit Toggling VCC = Max. Outputs Open fo = 2.5MHz 50% Duty Cycle OE = GND Four Bits Toggling VIN = VCC VIN = GND Test Conditions(1) Min. -- -- Typ.(2) 0.5 0.15 Max. 2 0.25 Unit mA mA/ MHz
IC
Total Power Supply Current(6)
VIN = VCC VIN = GND VIN = 3.4V VIN = GND VIN = VCC VIN = GND VIN = 3.4V VIN = GND
--
1.5
3.5
mA
--
1.8
4.5
--
1.5
3.5(5)
--
2.5
7.5(5)
NOTES: 1. For conditions shown as Min. or Max., use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at VCC = 5.0V, +25C ambient. 3. Per TTL driven input; (VIN = 3.4V). All other inputs at VCC or GND. 4. This parameter is not directly testable, but is derived for use in Total Power Supply Calculations. 5. Values for these conditions are examples of ICC formula. These limits are guaranteed but not tested. 6. IC = IQUIESCENT + IINPUTS + IDYNAMIC IC = ICC + ICC DHNT + ICCD (fONO) ICC = Quiescent Current ICC = Power Supply Current for a TTL High Input (VIN = 3.4V) DH = Duty Cycle for TTL Inputs High NT = Number of TTL Inputs at DH ICCD = Dynamic Current caused by an Input Transition Pair (HLH or LHL) fO = Output Frequency NO = Number of Outputs at fO All currents are in milliamps and all frequencies are in megahertz.
4
IDT54/74FCT257T/AT/CT/DT FAST CMOS QUAD 2-INPUT MULTIPLEXER
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
SWITCHING CHARACTERISTICS OVER OPERATING RANGE - INDUSTRIAL
Symbol tPLH tPHL tPLH tPHL tPZH tPZL tPHZ tPLZ Parameter Propagation Delay Ix to Zx Propagation Delay S to Zx Output Enable Time Output Disable Time Condition(1) CL = 50pF RL = 500 FCT257AT Min.(2) Max. 1.5 5 1.5 1.5 1.5 7 7 5.5 FCT275CT Min.(2) 1.5 1.5 1.5 1.5 Max. 4.3 5.2 6 5 Min.(2) FCT275DT Max. 1.5 3.9 4.4 4.4 4.4 Unit ns ns ns ns
1.5 1.5 1.5
NOTES: 1. See test circuit and waveforms. 2. Minimum limits are guaranteed but not tested on Propagation Delays.
SWITCHING CHARACTERISTICS OVER OPERATING RANGE - MILITARY
Symbol tPLH tPHL tPLH tPHL tPZH tPZL tPHZ tPLZ Parameter Propagation Delay Ix to Zx Propagation Delay S to Zx Output Enable Time Output Disable Time Condition(1) CL = 50pF RL = 500 FCT257T Min.(2) Max. 1.5 7 1.5 1.5 1.5 12 10 8 FCT275AT Min.(2) Max. 1.5 5.8 1.5 1.5 1.5 8.1 8 5.8 FCT275CT Min.(2) Max. 1.5 5 1.5 1.5 1.5 6 6.8 5.3 Unit ns ns ns ns
NOTES: 1. See test circuit and waveforms. 2. Minimum limits are guaranteed but not tested on Propagation Delays.
5
IDT54/74FCT257T/AT/CT/DT FAST CMOS QUAD 2-INPUT MULTIPLEXER
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
TEST CIRCUITS AND WAVEFORMS
V CC 500 VIN Pulse Generator RT D.U.T . VOUT 7.0V
SWITCH POSITION
Test Open Drain Disable Low Enable Low All Other Tests Switch Closed Open
50pF CL
500
DEFINITIONS: CL = Load capacitance: includes jig and probe capacitance. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator.
Octal link
Test Circuits for All Outputs
DATA INPUT TIMING INPUT ASYNCHRONOUS CONTROL PRESET CLEAR ETC. SYNCHRONOUS CONTROL PRESET CLEAR CLOCK ENABLE ETC.
tSU
tH
tREM
3V 1.5V 0V 3V 1.5V 0V 3V 1.5V 0V 3V 1.5V 0V
Octal link
LOW-HIGH-LOW PULSE tW HIGH-LOW-HIGH PULSE
Octal link
1.5V
1.5V
tSU
tH
Pulse Width
Set-Up, Hold, and Release Times
ENABLE SAME PHASE INPUT TRANSITION tPLH OUTPUT tPLH OPPOSITE PHASE INPUT TRANSITION tPHL tPHL 3V 1.5V 0V VOH 1.5V VOL 3V 1.5V 0V
Octal link
DISABLE 3V 1.5V
CONTROL INPUT tPZL OUTPUT NORMALLY LOW OUTPUT NORMALLY HIGH SWITCH CLOSED tPZH SWITCH OPEN 3.5V 1.5V tPHZ 0.3V 1.5V 0V tPLZ
0V 3.5V 0.3V VOL VOH 0V
Octal link
Propagation Delay
Enable and Disable Times
NOTES: 1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH. 2. Pulse Generator for All Pulses: Rate 1.0MHz; tF 2.5ns; tR 2.5ns.
6
IDT54/74FCT257T/AT/CT/DT FAST CMOS QUAD 2-INPUT MULTIPLEXER
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
ORDERING INFORMATION
IDT XX FCT XXXX Temp. Range Device Type XX Package X Process Blank B Industrial MIL-STD-883, Class B Industrial Options Small Outline IC (300 mil) Quarter-size Small Outline Package
SO Q
D L
Military Options CERDIP Leadless Chip Carrier
257T 257AT 257CT 257DT 54 74
Quad 2-Input Multiplexer (3-State)
- 55C to +125C - 40C to +85C
CORPORATE HEADQUARTERS 2975 Stender Way Santa Clara, CA 95054
for SALES: 800-345-7015 or 408-727-6116 fax: 408-492-8674 www.idt.com
for Tech Support: logichelp@idt.com (408) 654-6459
7

▲Up To Search▲

Price & Availability of IDT54FCT25

	To Download IDT54FCT25 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .