IDT74FCT257DTLSOB Datasheet PDF - Integrated Device Tech
| Part Number | IDT74FCT257DTLSOB | |
| Description | FAST CMOS QUAD 2-INPUT MULTIPLEXER | |
| Manufacturers | Integrated Device Tech | |
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IDT54/74FCT257T/AT/CT/DT
FAST CMOS QUAD 2-INPUT MULTIPLEXER
FAST CMOS
QUAD 2-INPUT
MULTIPLEXER
MILITARYANDINDUSTRIALTEMPERATURERANGES
IDT54/74FCT257T/AT/CT/DT
FEATURES:
• Std., A, C, and D grades
• Low input and output leakage ≤1µA (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
DESCRIPTION:
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
I1B I1D
I0B I0D
I1A
I0A
OE
Three other multiplexers
ZB ZD
ZA
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
1
© 2002 Integrated Device Technology, Inc.
JUNE 2001
DSC-5500/2
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IDT54/74FCT257T/AT/CT/DT
FAST CMOS QUAD 2-INPUT MULTIPLEXER
MILITARYANDINDUSTRIALTEMPERATURERANGES
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 = 500Ω
FCT257AT
Min.(2)
Max.
1.5 5
1.5 7
1.5 7
1.5 5.5
FCT275CT
Min.(2)
Max.
1.5 4.3
1.5 5.2
1.5 6
1.5 5
FCT275DT
Min.(2)
Max.
1.5 3.9
1.5 4.4
1.5 4.4
1.5 4.4
NOTES:
1. See test circuit and waveforms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
Unit
ns
ns
ns
ns
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 = 500Ω
FCT257T
Min.(2)
Max.
1.5 7
1.5 12
1.5 10
1.5 8
FCT275AT
Min.(2)
Max.
1.5 5.8
1.5 8.1
1.5 8
1.5 5.8
FCT275CT
Min.(2)
Max.
1.5 5
1.5 6
1.5 6.8
1.5 5.3
NOTES:
1. See test circuit and waveforms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
Unit
ns
ns
ns
ns
5
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for IDT74FCT257DTLSOB electronic component. |
| Information | Total 7 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
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Featured Datasheets
| Part Number | Description | MFRS |
| IDT74FCT257DTLSO | The function is FAST CMOS QUAD 2-INPUT MULTIPLEXER. Integrated Device Tech | |
| IDT74FCT257DTLSOB | The function is FAST CMOS QUAD 2-INPUT MULTIPLEXER. Integrated Device Tech | |
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