Datasheet

SN65C3221E , , SN75C3221E
SLLS694B – NOVEMBER 2005 – REVISED APRIL 2009 .................................................................................................................................................. www.ti.com
ORDERING INFORMATION
T
A
PACKAGE
(1) (2)
ORDERABLE PART NUMBER TOP-SIDE MARKING
SSOP – DB Reel of 2000 SN75C3221EDBR MY221E
– 0 ° C to 70 ° C Tube of 90 SN75C3221EPW
TSSOP – PW MY221E
Reel of 2000 SN75C3221EPWR
SSOP – DB Reel of 2000 SN65C3221EDBR MU221E
– 40 ° C to 85 ° C Tube of 90 SN65C3221EPW
TSSOP – PW MU221E
Reel of 2000 SN65C3221EPWR
(1) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
www.ti.com/sc/package .
(2) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
website at www.ti.com .
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
abc
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
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