MAX220C View Datasheet(PDF) - Maxim Integrated
Part Name
Description
MFG CO.
'MAX220C' PDF : 36 Pages View PDF
+5V-Powered, Multichannel RS-232
Drivers/Receivers
Table 1d. MAX247/MAX248/MAX249 Control Pin Configurations
TRANSMITTERS
RECEIVERS
ENTA ENTB ENRA ENRB
OPERATION
STATUS
MAX247 TA1–TA4 TB1–TB4
MAX248 TA1–TA4 TB1–TB4
RA1–RA4
RA1–RA4
RB1–RB5
RB1–RB4
MAX249 TA1–TA3 TB1–TB3
RA1–RA5
RB1–RB5
0
0
0
0 Normal Operation
All Active All Active All Active
All Active
0
0
0
1 Normal Operation
All Active All Active All Active
All 3-State, except
RB5 stays active on
MAX247
0
0
1
0 Normal Operation
All Active All Active All 3-State
All Active
0
0
1
1 Normal Operation
All Active All Active All 3-State
All 3-State, except
RB5 stays active on
MAX247
0
1
0
0 Normal Operation
All Active All 3-State All Active
All Active
0
1
0
1 Normal Operation
All Active All 3-State All Active
All 3-State, except
RB5 stays active on
MAX247
0
1
1
0 Normal Operation
All Active All 3-State All 3-State
All Active
0
1
1
1 Normal Operation
All Active All 3-State All 3-State
All 3-State, except
RB5 stays active on
MAX247
1
0
0
0 Normal Operation
All 3-State All Active All Active
All Active
1
0
0
1 Normal Operation
All 3-State All Active All Active
All 3-State, except
RB5 stays active on
MAX247
1
0
1
0 Normal Operation
All 3-State All Active All 3-State
All Active
1
0
1
1 Normal Operation
All 3-State All Active All 3-State
All 3-State, except
RB5 stays active on
MAX247
1
1
0
0
Shutdown
All 3-State
All 3-State
Low-Power
Receive Mode
Low-Power
Receive Mode
1
1
0
1
Shutdown
All 3-State
All 3-State
Low-Power
Receive Mode
All 3-State, except
RB5 stays active on
MAX247
1
1
1
0
Shutdown
All 3-State All 3-State All 3-State
Low-Power
Receive Mode
1
1
1
1
Shutdown
All 3-State All 3-State All 3-State
All 3-State, except
RB5 stays active on
MAX247
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