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PDF IDT74LVC4245A Data sheet ( Hoja de datos )
| Número de pieza | IDT74LVC4245A | |
| Descripción | CMOS OCTAL BUS TRANSCEIVER | |
| Fabricantes | Integrated Device Technology | |
| Logotipo |  |
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IDT74LVC4245A
CMOS OCTAL BUS TRANSCEIVER AND 3.3V TO 5V SHIFTER
INDUSTRIALTEMPERATURERANGE
CMOS OCTAL BUS
TRANSCEIVER AND 3.3V TO 5V
SHIFTER WITH 3-STATE OUT-
PUTS AND 5 VOLT TOLERANT I/O
IDT74LVC4245A
FEATURES:
• 0.5 MICRON CMOS Technology
• VCCA = 5V ± 0.5V
• VCCB = 2.7V to 3.6V
• CMOS power levels (0.4µ W typ. static)
• Rail-to-rail output swing for increased noise margin
• All inputs, outputs, and I/O are 5V tolerant
• Supports hot insertion
• Available in SOIC, SSOP, QSOP, and TSSOP packages
DRIVE FEATURES:
• High Output Drivers: ±24mA
• Reduced system switching noise
DESCRIPTION:
The LVC4245A is manufactured using advanced dual metal CMOS
technology. This octal noninverting bus transceiver contains two separate
supply rails; B port has VCCB, which is set at 3.3V, and A port has VCCA, which
is set at 5V. This allows for translation from a 3.3V to a 5V environment, and
vice-versa.
This device is ideal for asynchronous communication between two buses
(A and B). The direction control pin (DIR) controls the direction of data flow.
The output enable pin (OE) overrides the direction control and disables both
ports. All inputs are designed with hysteresis for improved noise margin.
The LVC4245A has been designed with a ±24mA output driver. This
driver is capable of driving a moderate to heavy load while maintaining
speed performance.
APPLICATIONS:
• 5V and 3.3V mixed voltage systems
• Data communication and telecommunication systems
FUNCTIONAL BLOCK DIAGRAM DataSheet4U.com
DataShee
DIR 2
A1 3
4
A2
A3 5
A4 6
A5 7
A6 8
A7 9
A8 10
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The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
© 2000 Integrated Device Technology, Inc.
1
22 OE
21 B1
20
B2
19 B3
18 B4
17 B5
16 B6
15 B7
14 B8
JULY 2000
DSC-4754/1
1 page  
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IDT74LVC4245A
CMOS OCTAL BUS TRANSCEIVER AND 3.3V TO 5V SHIFTER
SWITCHING CHARACTERISTICS(1)
Symbol
Parameter
tPLH PropagationDelay
tPHL Ax to Bx
tPLH PropagationDelay
tPHL Bx to Ax
tPZL OutputEnableTime
tPLZ OE to Bx
tPZL OutputEnableTime
tPLZ OE to Ax
tPLZ OutputDisableTime
tPHZ OE to Bx
tPLZ OutputDisableTime
tPHZ OE to Ax
NOTE:
1. See TEST CIRCUITS AND WAVEFORMS. TA = – 40°C to + 85°C.
INDUSTRIALTEMPERATURERANGE
VCCA = 5V ± 0.5V
VCCB = 2.7V to 3.6V
Min. Max.
1 6.3
1 6.7
1 6.1
15
1 8.8
1 9.8
19
1 8.1
1 7.7
1 7.8
17
1 5.8
Unit
ns
ns
ns
ns
ns
ns
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| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet IDT74LVC4245A.PDF ] | |
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