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PDF 74FCT151AT Data sheet ( Hoja de datos )
| Número de pieza | 74FCT151AT | |
| Descripción | IDT74FCT151AT | |
| Fabricantes | Integrated Device Technology | |
| Logotipo |  |
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Integrated Device Technology, Inc.
FAST CMOS
8-INPUT MULTIPLEXER
IDT54/74FCwwTw1.D5a1taTSh/eAet4TU/.cComT
FEATURES:
• Std., A, and C speed grades
• Low input and output leakage ≤1µA (max.)
• Extended commercial range of –40°C to +85°C
• CMOS power levels
• True TTL input and output compatibility
– VOH = 3.3V (typ.)
– VOL = 0.3V (typ.)
• High drive outputs (-15mA IOH, 48mA IOL)
• Power off disable outputs permit “live insertion”
• Meets or exceeds JEDEC standard 18 specifications
• Product available in Radiation Tolerant and Radiation
Enhanced versions
• Military product compliant to MIL-STD-883, Class B
and DESC listed (dual marked)
• Available in DIP, SOIC, CERPACK and LCC packages
DESCRIPTION:
The IDT54/74FCT151T/AT/CT are high-speed 8-input mul-
tiplexers built using an advanced dual metal CMOS technol-
ogy. They select one bit of data from up to eight sources under
the control of three select inputs. Both assertion and negation
outputs are provided.
The IDT54/74FCT151T/AT/CT has a common Active-LOW
enable (E ) input. When E is LOW, data from one of eight inputs
is routed to the complementary outputs according to the 3-bit
code applied to the Select (S0-S2) inputs. A common appli-
cation of the ‘FCT151 is data routing from one of eight
sources.
FUNCTIONAL BLOCK DIAGRAM
I7
I6
I5
Z
I4
Z
I3
I2
I1
I0
S2 S1 S0
E
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
MILITARY AND COMMERCIAL TEMPERATURE RANGES
©1997 Integrated Device Technology, Inc.
6.5
2635 drw 01
SEPTEMBER 1996
DSC-2635/5
1
1 page  
IDT54/74FCT151T/AT/CT
FAST CMOS 8-INPUT MULTIPLEXER
TEST CIRCUITS AND WAVEFORMS
TEST CIRCUITS FOR ALL OUTPUTS
V CC
VIN
Pulse
Generator
D.U.T.
RT
VOUT
50pF
CL
500Ω
500Ω
7.0V
MILITARY AND COMMERCIAL TEMPERATURE RANGES
www.DataSheet4U.com
SWITCH POSITION
Test
Switch
Open Drain
Disable Low
Closed
Enable Low
All Other Tests
Open
DEFINITIONS:
2635 lnk 08
CL= Load capacitance: includes jig and probe capacitance.
RT = Termination resistance: should be equal to ZOUT of the Pulse
Generator.
2635 drw 04
SET-UP, HOLD AND RELEASE TIMES
PULSE WIDTH
DATA
INPUT
TIMING
INPUT
ASYNCHRONOUS CONTROL
PRESET
CLEAR
ETC.
SYNCHRONOUS CONTROL
PRESET
CLEAR
CLOCK ENABLE
ETC.
tSU
tSU
tH
tREM
tH
3V
1.5V
0V
3V
1.5V
0V
3V
1.5V
0V
3V
1.5V
0V
2635 drw 05
LOW-HIGH-LOW
PULSE
HIGH-LOW-HIGH
PULSE
1.5V
tW
1.5V
2635 drw 06
PROPAGATION DELAY
SAME PHASE
INPUT TRANSITION
OUTPUT
OPPOSITE PHASE
INPUT TRANSITION
tPLH
tPLH
tPHL
tPHL
ENABLE AND DISABLE TIMES
3V
1.5V
0V
VOH
1.5V
VOL
3V
1.5V
0V
2635 drw 07
ENABLE
DISABLE
CONTROL
INPUT
OUTPUT
NORMALLY
LOW
tPZL
SWITCH
CLOSED
tPZH
OUTPUT
NORMALLY
HIGH
SWITCH
OPEN
3V
1.5V
0V
tPLZ
3.5V
3.5V
1.5V
tPHZ
0.3V VOL
1.5V
0.3V VOH
0V 0V
2635 drw 08
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
6.5 5
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet 74FCT151AT.PDF ] | |
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