MAX221EAE 查看數據表（PDF） - Maxim Integrated
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MAX221EAE Datasheet PDF : 8 Pages
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+5V, 1µA, Single RS-232 Transceiver
with AutoShutdown
5V/div
5V/div
TIN = GND
FORCEON =
FORCEOFF
TOUT
TIN = VCC
50µs/div
Figure 5. Transmitter Output Exiting Shutdown or
Powering Up
+5V
0.1µF
C1+
VCC
V+
C1
C1-
MAX221
C2+
V-
C2
C2-
TIN
TOUT
ROUT
RIN
0V
EN
5k
VCC
FORCEOFF
FORCEON
GND
INVALID
Figure 6. Loopback Test Circuit
C3
C4
1000pF
5V/div
TIN
5V/div
TOUT
5V/div
ROUT
2µs/div
Figure 7. Loopback Test Result at 120kbps
5V/div
TIN
5V/div
TOUT
5V/div
ROUT
2µs/div
Figure 8. Loopback Test Result at 250kbps
___________________Chip Information
TRANSISTOR COUNT: 157
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
8 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 1999 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
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