®
SP3220E/EB/EU
+3.0V to +5.5V RS-232 Driver/Receiver Pair
■ MeetsAllEIA-232andITUV.28Specifications
fromawide+3.0Vto+5.5Vpowersupply
EN
1
2
3
4
5
6
16
15
14
13
12
11
SHDN
● InteroperablewithRS232andV.28at2.7V
C1+
V+
V
CC
■ SupportsHighSerialDataRates:
● 120kbps SP3220E
GND
● 250kbps SP3220EB
● 1Mbps SP3220EU
C1-
SP3220
T1OUT
E/EB/EU
■ 1µALowPowerShutdownMode
■ FootprintCompatiblewithMAX3221E,ISL3221
■ 4x0.1µFExternalChargePumpCapacitors
■ Tri–State/ReceiverEnable
C2+
C2-
V-
NoConnect
T1IN
7
8
10
9
NoConnect
R1OUT
■ ImprovedESDSpecifications:
● +15kVHumanBodyModel
R1IN
● +15kVIEC1000-4-2AirDischarge
● +8kVIEC1000-4-2ContactDischarge
Available in Lead Free Packaging
DESCRIPTION
TheSP3220E devicesareRS-232driver/receiversolutionsintendedforportableorhand-held
applications such as palmtop computers, instrumentation and consumer products. These
devices incorporate a high-efficiency charge-pump power supply that allows theSP3220E
devicestodelivertrueRS-232performancefromasinglepowersupplyrangingfrom+3.0V
to +5.0V. This charge pump requires only 0.1µF capacitors in 3.3V operation. The ESD
toleranceofthesedevicesisover±15kVforbothHumanModelandIEC1000-4-2Airdischarge
test methods. All devices have a low-power shutdown mode where the driver outputs and
chargepumpsaredisabled.Duringshutdown,thesupplycurrentfallstolessthan1µA.
V
CC
+
15
0.1µF
C5
V
CC
3
7
2
C1+
V+
V-
+
+
C1 0.1µF
0.1µF
*C3
4
C1-
5
C2+
SP3220
+
E/EB/EU
C4 0.1µF
C2
0.1µF
+
6
C2-
T1OUT
LOGIC
13
R1IN 8
11
T1IN
RS-232
INPUTS
OUTPUTS
R1OUT
9
LOGIC
RS-232
OUTPUTS
INPUTS
5k1
16
1
SHDN
EN
GND
14
*canbereturnedto
eitherVCC orGND
Date: 8/30/05
SP3220E/EB/EU High ESD RS-232 Driver/Receiver
© Copyright 2005 Sipex Corporation
ꢀ