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PDF HC245 Data sheet ( Hoja de datos )
| Número de pieza | HC245 | |
| Descripción | Octal 3-State Noninverting Bus Transceiver | |
| Fabricantes | System Logic Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de HC245 (archivo pdf) en la parte inferior de esta página. Total 5 Páginas | ||
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SL74HC245
Octal 3-State Noninverting Bus Transceiver
High-Performance Silicon-Gate CMOS
The SL74HC245 is identical in pinout to the LS/ALS245. The device
inputs are compatible with standard CMOS outputs; with pullup
resistors, they are compatible with LS/ALSTTL outputs.
The SL74HC245 is a 3-state noninverting transceiver that is used
for 2-way asynchronous communication between data buses. The
device has an active-low Output Enable pin, which is used to place the
I/O ports into high-impedance states. The Direction control determines
whether data flows from A to B or from B to A.
• Outputs Directly Interface to CMOS, NMOS, and TTL
• Operating Voltage Range: 2.0 to 6.0 V
• Low Input Current: 1.0 µA
• High Noise Immunity Characteristic of CMOS Devices
ORDERING INFORMATION
SL74HC245N Plastic
SL74HC245D SOIC
TA = -55° to 125° C for all packages
LOGIC DIAGRAM
PIN ASSIGNMENT
PIN 20=VCC
PIN 10 = GND
SLS
System Logic
Semiconductor
FUNCTION TABLE
Control Inputs
Output Direction
Enable
LL
LH
HX
X = don’t care
Operation
Data Transmitted
from Bus B to Bus
A
Data Transmitted
from Bus A to Bus
B
Buses Isolated
(High Impedance
State)
1 page  
SL74HC245
Figure 3. Test Circuit
Figure 4. Test Circuit
EXPANDED LOGIC DIAGRAM
SLS
System Logic
Semiconductor
5 Page | ||
| Páginas | Total 5 Páginas | |
| PDF Descargar | [ Datasheet HC245.PDF ] | |
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