Datasheet

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MAX3221E
3-V TO 5.5-V SINGLE-CHANNEL RS-232 LINE DRIVER/RECEIVER
WITH 15-kV IEC ESD PROTECTION
SLLS686A – OCTOBER 2005 – REVISED MAY 2006
ORDERING INFORMATION
T
A
PACKAGE
(1)
ORDERABLE PART NUMBER TOP-SIDE MARKING
Tube of 80 MAX3221ECDB
SSOP – DB MP221EC
Reel of 2000 MAX3221ECDBR
–0 ° C to 70 ° C
Tube of 90 MAX3221ECPW
TSSOP – PW MP221EC
Reel of 2000 MAX3221ECPWR
Tube of 80 MAX3221EIDB
SSOP – DB MP221EI
Reel of 2000 MAX3221EIDBR
–40 ° C to 85 ° C
Tube of 90 MAX3221EIPW
TSSOP – PW MP221EI
Reel of 2000 MAX3221EIPWR
(1) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
www.ti.com/sc/package.
FUNCTION TABLES
ABC
EACH DRIVER
(1)
INPUTS
OUTPUT
DRIVER STATUS
VALID RIN
DOUT
DIN FORCEON FORCEOFF
RS-232 LEVEL
X X L X Z Powered off
L H H X H
Normal operation with
auto-powerdown disabled
H H H X L
L L H Yes H
Normal operation with
auto-powerdown enabled
H L H Yes L
L L H No Z
Powered off by
auto-powerdown feature
H L H No Z
(1) H = high level, L = low level, X = irrelevant, Z = high impedance
EACH RECEIVER
(1)
INPUTS
OUTPUT
VALID RIN
ROUT
RIN EN
RS-232 LEVEL
L L X H
H L X L
X H X Z
Open L No H
(1) H = high level, L = low level, X = irrelevant, Z = high impedance
(off), Open = disconnected input or connected driver off
2
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