Datasheet

Table 1a. MAX245 Control Pin Configurations
Table 1b. MAX245 Control Pin Configurations
Table 1c. MAX246 Control Pin Configurations
ENT ENR OPERATION STATUS TRANSMITTERS RECEIVERS
0 0 Normal Operation All Active All Active
0 1 Normal Operation All Active All High-Z
1 0 Shutdown All High-Z All Low-Power Receive Mode
1 1 Shutdown All High-Z All High-Z
ENT ENR
OPERATION
STATUS
TRANSMITTERS RECEIVERS
TA1–TA4 TB1–TB4 RA1–RA5 RB1–RB5
0 0 Normal Operation All Active All Active All Active All Active
0 1 Normal Operation All Active All Active
RA1–RA4 High-Z,
RA5 Active
RA1–RA4 High-Z,
RA5 Active
1 0 Shutdown All High-Z All High-Z
All Low-Power
Receive Mode
All Low-Power
Receive Mode
1 1 Shutdown All High-Z All High-Z
RA1–RA4 High-Z,
RA5 Low-Power
Receive Mode
RA1–RA4 High-Z,
RA5 Low-Power
Receive Mode
ENA ENB
OPERATION
STATUS
TRANSMITTERS RECEIVERS
TA1–TA4 TB1–TB4 RA1–RA5 RB1–RB5
0 0 Normal Operation All Active All Active All Active All Active
0 1 Normal Operation All Active All Active All Active
RA1–RA4 High-Z,
RA5 Active
1 0 Shutdown All High-Z All High-Z
RA1–RA4 High-Z,
RA5 Active
All Low-Power
Receive Mode
1 1 Shutdown All High-Z All High-Z
RA1–RA4 High-Z,
RA5 Low-Power
Receive Mode
RA1–RA4 High-Z,
RA5 Low-Power
Receive Mode
MAX220–MAX249 +5V-Powered, Multichannel
RS-232 Drivers/Receivers
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Control Pin Conguration Tables