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sp3232een串口转换芯片 SP3222E/3232E 系列是 RS232 收发器对便携式或手持式应用如笔记本或掌上型电脑的一种解决方案。 SP3222E/3232E系列有一个高效的电荷泵,工作电压为3.3V时只需0.1µF电容就可进行操作。电荷泵允许 SP3222E/3232E 系列在+3.3V 到+5.0V 内的某个电压下发送符合 RS-232 的信号。SP3222E/3232E 系列是一 个2驱动器/2 接收器的器件,适用于便携式或手持式设备(如笔记本或掌上型电脑) 。SP3222E/3232E器件 的 ESD 保护使得驱动器和接收器的管脚可承受±15kV 人体放电模式和 IEC1000-4-2 气隙放电模式。 SP3222E 器件包含一种低功耗关断模式,该模式下器件的驱动器输出和电荷泵被禁止。关断状态下,电源 电流低于1µA
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Date: 02/24/05 SP3222E, SP3232E True +3.0 to +5.0V RS-232 Transceivers © Copyright 2005 Sipex Corporation
True +3.0V to +5.5V RS-232 Transceivers
SP3222E/3232E
DESCRIPTION
FEATURES
■ Meets true EIA/TIA-232-F Standards
from a +3.0V to +5.5V power supply
■ Minimum 120Kbps Data Rate Under Full
Load
■ 1µA Low-Power Shutdown with Receivers
Active (SP3222E)
■ Interoperable with RS-232 down to +2.7V
power source
■ Enhanced ESD Specifications:
±15kV Human Body Model
±15kV IEC1000-4-2 Air Discharge
±8kV IEC1000-4-2 Contact Discharge
The SP3222E/3232E series is an RS-232 transceiver solution intended for portable or hand-
held applications such as notebook or palmtop computers. The SP3222E/3232E series has
a high-efficiency, charge-pump power supply that requires only 0.1µF capacitors in 3.3V
operation. This charge pump allows the SP3222E/3232E series to deliver true RS-232
performance from a single power supply ranging from +3.3V to +5.0V. The SP3222E/3232E
are 2-driver/2-receiver devices. This series is ideal for portable or hand-held applications such
as notebook or palmtop computers. The ESD tolerance of the SP3222E/3232E devices are
over ±15kV for both Human Body Model and IEC1000-4-2 Air discharge test methods. The
SP3222E device has a low-power shutdown mode where the devices' driver outputs and
charge pumps are disabled. During shutdown, the supply current falls to less than 1µA.
SELECTION TABLE
LEDOMseilppuSrewoP
232-SR
srevirDsrevirD
srevirD
srevirDsrevirD
232-SR
srevieceRsrevieceR
srevieceR
srevieceRsrevieceR
lanretxE
stnenopmoCstnenopmoC
stnenopmoC
stnenopmoCstnenopmoC
nwodtuhS
LTT
etatS-3etatS-3
etatS-3
etatS-3etatS-3
fo.oN
sniPsniP
sniP
sniPsniP
2223PS
V5.5+otV0.3+224seYseY02,81
2323PS
V5.5+otV0.3+224oNoN61
®
V-
1
2
3
4
15
16
17
18
5
6
7
14
13
12
SHDN
C1+
V+
C1-
C2+
C2-
EN
R1IN
GND
V
CC
T1OUT
8
9
10
11
R2IN
SP3222E
T2OUT
T2IN
T1IN
R1OUT
DIP/SO
R2OUT
Note: See page 6 for other pinouts
Now Available in Lead Free Packaging
Date: 02/24/05 SP3222E, SP3232E True +3.0 to +5.0V RS-232 Transceivers © Copyright 2005 Sipex Corporation
2
RETEMARAP.NIM.PYT.XAMSTINUSNOITIDNOC
SCITSIRETCARAHCCD
tnerruCylppuS3.00.1AmT,daolon
BMA
52+=
o
V,C
CC
V3.3=
tnerruCylppuSnwodtuhS0.101 µA,DNG=NDHST
BMA
52+=
o
V,C
CC
V3.3+=
STUPTUOREVIECERDNASTUPNICIGOL
WOLdlohserhTcigoLtupnI8.0V 2etoN,NDHS,NE,NIxT
HGIHdlohserhTcigoLtupnI0.2
4.2
VV
CC
2etoN,V3.3=
V
CC
2etoN,V0.5=
tnerruCegakaeLtupnI10.0±0.1± µA,NDHS,NE,NIxTT
BMA
52+=
o
C
tnerruCegakaeLtuptuO50.0±01± µAdelbasidsreviecer
WOLegatloVtuptuO4.0VI
TUO
Am6.1=
HGIHegatloVtuptuOV
CC
6.0-V
CC
1.0-VI
TUO
Am0.1-=
STUPTUOREVIRD
gniwSegatloVtuptuO0.5±4.5±Vk3 Ω ,stuptuorevirdllatadnuorgotdaol
T
BMA
52+=
o
C
ecnatsiseRtuptuO003 Ω V
CC
T,V0=-V=+V=
TUO
=+ V2
tnerruCtiucriC-trohStuptuO53±
07±
06±
001±
Am
Am
V
TUO
V0=
V
TUO
=+ V51
tnerruCegakaeLtuptuO52± µAV
TUO
=+ V,V21
CC
delbasidsrevird,V5.5otV0=
NOTE 1: V+ and V- can have maximum magnitudes of 7V, but their absolute difference cannot exceed 13V.
ABSOLUTE MAXIMUM RATINGS
These are stress ratings only and functional operation of the
device at these ratings or any other above those indicated in
the operation sections of the specifications below is not
implied. Exposure to absolute maximum rating conditions
for extended periods of time may affect reliability and cause
permanent damage to the device.
V
CC
................................................................-0.3V to +6.0V
V+ (NOTE 1)................................................-0.3V to +7.0V
V- (NOTE 1)................................................+0.3V to -7.0V
V+ + |V-| (NOTE 1)....................................................+13V
I
CC
(DC V
CC
or GND current).................................±100mA
Input Voltages
TxIN, EN ................................................... -0.3V to +6.0V
RxIN .......................................................................... ±15V
Output Voltages
TxOUT ......................................................................±15V
RxOUT ........................................... -0.3V to (V
CC
+ 0.3V)
Short-Circuit Duration
TxOUT ............................................................ Continuous
Storage Temperature .............................. -65°C to +150°C
Power Dissipation Per Package
20-pin SSOP (derate 9.25mW/
o
C above +70
o
C) ..... 750mW
18-pin PDIP (derate 15.2mW/
o
C above +70
o
C) ....1220mW
18-pin SOIC (derate 15.7mW/
o
C above +70
o
C) ... 1260mW
20-pin TSSOP (derate 11.1mW/
o
C above +70
o
C) .. 890mW
16-pin SSOP (derate 9.69mW/
o
C above +70
o
C) ..... 775mW
16-pin PDIP (derate 14.3mW/
o
C above +70
o
C) .... 1150mW
16-pin Wide SOIC (derate 11.2mW/
o
C above +70
o
C) 900mW
16-pin TSSOP (derate 10.5mW/
o
C above +70
o
C) .. 850mW
16-pin nSOIC (derate 13.57mW/°C above +70°C) .. 1086mW
ELECTRICAL CHARACTERISTICS
Unless otherwise noted, the following specifications apply for V
CC
= +3.0V to +5.0V with T
AMB
= T
MIN
to T
MAX
3
Date: 02/24/05 SP3222E, SP3232E True +3.0 to +5.0V RS-232 Transceivers © Copyright 2005 Sipex Corporation
RETEMARAP.NIM.PYT.XAMSTINUSNOITIDNOC
STUPNIREVIECER
egnaRegatloVtupnI51-51+V
WOLdlohserhTtupnI6.0
8.0
2.1
5.1
VV
CC
V3.3=
V
CC
V0.5=
HGIHdlohserhTtupnI5.1
8.1
4.2
4.2
VV
CC
V3.3=
V
CC
V0.5=
siseretsyHtupnI3.0V
ecnatsiseRtupnI357kΩ
SCITSIRETCARAHCGNIMIT
etaRataDmumixaM021532spbkR
L
k3= Ω C,
L
gnihctiwsrevirdeno,Fp0001=
yaleDnoitagaporPrevirD0.1
0.1
µs
µs
t
LHP
R,
L
K3= Ω C,
L
Fp0001=
t
HLP
R,
L
K3= Ω C,
L
Fp0001=
yaleDnoitagaporPrevieceR3.0
3.0
µst
LHP
C,TUOxRotNIxR,
L
Fp051=
t
HLP
C,TUOxRotNIxR,
L
Fp051=
emiTelbanEtuptuOrevieceR002sn
emiTelbasiDtuptuOrevieceR002sn
wekSrevirD001005snt|
LHP
t-
HLP
T,|
BMA
52=
o
C
wekSrevieceR0020001snt|
LHP
t-
HLP
|
etaRwelSnoigeR-noitisnarT03/V µsV
CC
R,V3.3=
L
K3= Ω T,
BMA
52=
o
,C
V0.3+otV0.3-morfnekatstnemerusaem
V0.3-otV0.3+ro
ELECTRICAL CHARACTERISTICS
Unless otherwise noted, the following specifications apply for V
CC
= +3.0V to +5.0V with T
AMB
= T
MIN
to T
MAX
.
Typical Values apply at V
CC
= +3.3V or +5.0V and T
AMB
= 25
o
C.
NOTE 2: Driver input hysteresis is typically 250mV.
Date: 02/24/05 SP3222E, SP3232E True +3.0 to +5.0V RS-232 Transceivers © Copyright 2005 Sipex Corporation
4
Figure 1. Transmitter Output Voltage VS. Load
Capacitance for the SP3222 and the SP3232
Figure 2. Slew Rate VS. Load Capacitance for the
SP3222 and the SP3232
Figure 3. Supply Current VS. Load Capacitance when
Transmitting Data for the SP3222 and the SP3232
TYPICAL PERFORMANCE CHARACTERISTICS
Unless otherwise noted, the following performance characteristics apply for V
CC
= +3.3V, 120kbps data rates, all drivers
loaded with 3kΩ, 0.1µF charge pump capacitors, and T
AMB
= +25°C.
14
12
10
8
6
4
2
0
Slew Rate [V/µs]
Load Capacitance [pF]
+Slew
-Slew
0 500
1000
1500
2000
2330
50
45
40
35
30
25
20
15
10
5
0
Supply Current [mA]
Load Capacitance [pF]
118KHz
60KHz
10KHz
0 500
1000
1500
2000
2330
6
4
2
0
-2
-4
-6
Transmitter Output Voltage [V]
Load Capacitance [pF]
Vout+
Vout-
500
1000
1500
2000
0
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