MAX3381EEUP Maxim Integrated, MAX3381EEUP Datasheet - Page 8

• Manufacturer Part Number: MAX3381EEUP
• Description: RS-232 Interface IC
• Manufacturer: Maxim Integrated
• Series: MAX3380E, MAX3381Er

Specifications of MAX3381EEUP

• Data Rate: 250 Kbps
• Operating Supply Voltage: 2.35 V to 5.5 V
• Supply Current: 1 mA
• Operating Temperature Range: 0 C to + 70 C
• Function: Transceiver
• Number Of Drivers: 2
• Number Of I/os: 8
• Number Of Receivers: 2
• Propagation Delay Time Ns: 0.15 us
• Shutdown: Yes

+2.35V to +5.5V, 1µA, 2Tx/2Rx RS-232 Transceivers
with ±15kV ESD-Protected I/O and Logic Pins
Table 1. AutoShutdown Plus Truth Table
X = Don’t care
Figure 2a. I NVALID Functional Diagram, I NVALID Low
8
Shutdown
(Forced Off)
Normal Operation
(Forced On)
Normal Operation
(AutoShutdown
Plus)
Shutdown
(AutoShutdown
Plus)
Normal Operation
Normal Operation
Shutdown
Normal Operation
(AutoShutdown)
Shutdown
(AutoShutdown)
+0.3V
-0.3V
R_IN
OPERATION
_______________________________________________________________________________________
INVALID ASSERTED IF ALL RECEIVER INPUTS ARE BETWEEN +0.3V AND -0.3V FOR
AT LEAST 30μs.
STATUS
FORCEON
INVALID
INVALID
INVALID
INVALID
INVALID
X
1
0
0
FORCEOFF
INVALID
INVALID
TIMER
30µs
R
0
1
1
1
1
1
1
INVALID
RECEIVER
LEVEL
VALID
Yes
Yes
No
No
X
X
X
X
X
TRANSMITTER EDGE
Figure 2b. I NVALID Functional Diagram, I NVALID High
+2.7V
-2.7V
R_IN
INVALID DEASSERTED IF ANY RECEIVER INPUT HAS BEEN BETWEEN +2.7V AND -2.7V
FOR LESS THAN 30μs.
RECEIVER OR
WITHIN 30s
Yes
Yes
No
No
X
X
X
X
X
T_OUT
High-Z
High-Z
High-Z
High-Z
Active
Active
Active
Active
Active
TIMER
0.3μs
R
INVALID
R_OUT
Active
Active
Active
Active
Active
Active
Active
Active
Active