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PDF IDT74LVCC4245A Data sheet ( Hoja de datos )
| Número de pieza | IDT74LVCC4245A | |
| Descripción | CMOS OCTAL DUAL-SUPPLY BUS TRANSCEIVER | |
| Fabricantes | Integrated Device Technology | |
| Logotipo |  |
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IDT74LVCC4245A
CMOS OCTAL DUAL-SUPPLY BUS TRANSCEIVER
INDUSTRIALTEMPERATURERANGE
CMOS OCTAL DUAL-SUPPLY
IDT74LVCC4245A
BUS TRANSCEIVER WITH
CONFIGURABLE OUTPUT VOLTAGE,
3-STATE OUTPUTS, 3.3V AND 5V I/O
FEATURES:
• 0.5 MICRON CMOS Technology
• VCCA = 5V ± 0.5V
• VCCB = 2.7V to 5.5V
• 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
www.Data•ShSeuept4pUo.rctosmhot insertion
• Available in SSOP, QSOP, and TSSOP packages
DRIVE FEATURES:
• High Output Drivers: ±24mA
• Reduced system switching noise
APPLICATIONS:
• 5V and 3.3V mixed voltage systems
• Data communication and telecommunication systems
DESCRIPTION:
The LVCC4245A is manufactured using advanced dual metal CMOS
technology. This 8-bit (octal) noninverting bus transceiver contains two
separate power-supply rails. The configurable B port is designed to track
VCCB, which accepts voltages from 3V to 5V, and the A port is dedicated to
accept a 5V supply level. This allows for translation from a 3.3V to a 5V
system environment and vice-versa.
This LVCC4245A is ideal for asynchronous communication between two
data buses (A and B). The device transmits data from A to B or from B to
A, depending on the logic level at the direction-control (DIR) input. The
output-enable (OE) input can be used to disable the device so the buses are
effectively isolated.
The LVCC4245A has been designed with a ±24mA output driver. This
driver is capable of driving a moderate to heavy load while maintaining
speed performance.
FUNCTIONAL BLOCK DIAGRAM
2
DIR
A1 3
4
A2
A3 5
A4 6
A5 7
A6 8
A7 9
A8 10
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
© 2004 Integrated Device Technology, Inc.
1
22 OE
21 B1
20
B2
19 B3
18 B4
17 B5
16 B6
15 B7
14 B8
JANUARY 2004
DSC-5166/2
1 page  
IDT74LVCC4245A
CMOS OCTAL DUAL-SUPPLY BUS TRANSCEIVER
INDUSTRIALTEMPERATURERANGE
SWITCHING CHARACTERISTICS(1)
Symbol
Parameter
VCCA = 5V ± 0.5V
VCCB = 5V ± 0.5V
VCCB = 2.7V to 3.6V
Min. Max.
Min. Max.
tPLH PropagationDelay
1 7.1 1 7
tPHL Ax to Bx
16
17
tPLH PropagationDelay
1 6.8
1 6.2
tPHL Bx to Ax
1 6.1
1 5.3
tPZL OutputEnableTime
1 8.2
1 10
tPZH OE to Bx
1 8.1
1 10.2
www.DataSheet4tPUZL.com
Output Enable Time
1
9
19
tPZH OE to Ax
1 8.3 1 8
tPLZ OutputDisableTime
1 4.7
1 5.2
tPHZ OE to Ax
1 4.9
1 5.2
tPLZ OutputDisableTime
1 5.4
1 5.4
tPHZ OE to Bx
1 6.3
1 7.4
NOTE:
1. See TEST CIRCUITS AND WAVEFORMS. TA = – 40°C to + 85°C.
Unit
ns
ns
ns
ns
ns
ns
5
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| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet IDT74LVCC4245A.PDF ] | |
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