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74LVX4245WM датащи(PDF) 6 Page - Fairchild Semiconductor

номер детали 74LVX4245WM
подробное описание детали  8-Bit Dual Supply Translating Transceiver with 3-STATE Outputs
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производитель  FAIRCHILD [Fairchild Semiconductor]
домашняя страница  http://www.fairchildsemi.com
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74LVX4245WM датащи(HTML) 6 Page - Fairchild Semiconductor

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Applications: Mixed Mode Dual Supply Interface Solution
LVX4245 is designed to solve 3V/5V interfacing issues
when CMOS devices cannot tolerate I/O levels above their
applied VCC. If an I/O pin of 3V ICs is driven by 5V ICs, the
P-Channel transistor in 3V ICs will conduct causing current
flow from I/O bus to the 3V power supply. The resulting
high current flow can cause destruction of 3V ICs through
latchup effects. To prevent this problem, a current limiting
resistor is used typically under direct connection of 3V ICs
and 5V ICs, but it causes speed degradation.
In a better solution, the LVX4245 configures two different
output levels to handle the dual supply interface issues.
The “A” port is a dedicated 5V port to interface 5V ICs. The
“B” port is a dedicated port to interface 3V ICs. Figure 2
shows how LVX4245 fits into a system with 3V subsystem
and 5V subsystem.
This device is also configured as an 8-bit 245 transceiver,
giving the designer 3-STATE capabilities and the ability to
select either bidirectional or unidirectional modes. Since
the center 20 pins are also pin compatible to 74 series 245,
as shown in Figure 1, the designer could use this device in
either a 3V system or a 5V system without any further work
to re-layout the board.
FIGURE 1. LVX4245 Pin Arrangement is Compatible to
20-Pin 74 Series 245
FIGURE 2. LVX4245 Fits into a System with 3V Subsystem and 5V Subsystem


Аналогичный номер детали - 74LVX4245WM

производительномер деталидатащиподробное описание детали
logo
National Semiconductor ...
74LVX4245WM NSC-74LVX4245WM Datasheet
142Kb / 8P
   8-Bit Dual Supply Translating Transceiver with TRI-STATE Outputs
74LVX4245WMX NSC-74LVX4245WMX Datasheet
142Kb / 8P
   8-Bit Dual Supply Translating Transceiver with TRI-STATE Outputs
More results

Аналогичное описание - 74LVX4245WM

производительномер деталидатащиподробное описание детали
logo
Fairchild Semiconductor
74LVX3245 FAIRCHILD-74LVX3245 Datasheet
64Kb / 7P
   8-Bit Dual Supply Translating Transceiver with 3-STATE Outputs
74LVX3245WMX FAIRCHILD-74LVX3245WMX Datasheet
1Mb / 9P
   8-Bit Dual Supply Translating Transceiver with 3-STATE Outputs
74LVX3245MTCX FAIRCHILD-74LVX3245MTCX Datasheet
1Mb / 9P
   8-Bit Dual Supply Translating Transceiver with 3-STATE Outputs
74LVX3245 FAIRCHILD-74LVX3245_10 Datasheet
1Mb / 9P
   8-Bit Dual Supply Translating Transceiver with 3-STATE Outputs
logo
National Semiconductor ...
54LVX4245 NSC-54LVX4245 Datasheet
118Kb / 8P
   8-Bit Dual Supply Translating Transceiver with TRI-STATE Outputs
74LVX4245 NSC-74LVX4245 Datasheet
142Kb / 8P
   8-Bit Dual Supply Translating Transceiver with TRI-STATE Outputs
54LVX3245 NSC-54LVX3245 Datasheet
114Kb / 8P
   8-Bit Dual Supply Translating Transceiver with TRI-STATE Outputs
54LVX4245_993 NSC-54LVX4245_993 Datasheet
120Kb / 8P
   8-Bit Dual Supply Translating Transceiver with TRI-STATE Outputs
logo
Nexperia B.V. All right...
74LVC8T245-Q100 NEXPERIA-74LVC8T245-Q100 Datasheet
808Kb / 28P
   8-bit dual supply translating transceiver; 3-state
74LVC8T245 NEXPERIA-74LVC8T245 Datasheet
831Kb / 28P
   8-bit dual supply translating transceiver; 3-state
More results


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