ST3232E
±15KV ESD-PROTECTED, 3 TO 5.5V, LOW POWER,
UP TO 250KBPS, RS-232 DRIVERS AND RECEIVERS
■
■
■
■
■
■
ESD PROTECTIO FOR RS-232 I/O PINS
±15KV HUMAN BODY MODEL
±8KV IEC 1000-4-2 CONTACT DISCHARGE
300µA SUPPLY CURRENT
250Kbps MINIMUM GUARENTEED DATA
RATE
6V/µs MINIMUM GUARANTEED SLEW RATE
MEET EIA/TIA-232 SPECIFICATIONS DOWN
TO 3V
AVAILABLE IN DIP-16, SO-16, SO-16 LARGE
AND TSSOP16
DESCRIPTION
The ST3232E is a 3V powered EIA/TIA-232 and
V.28/V.24 communication interfaces with low
power requirements, high data-rate capabilities
and enhanced electrostatic discharge (ESD)
protection to ±8kV using IEC1000-4-2 Contact
Discharge and ±15kV using the Human Body
Model. ST3232E has a proprietary low dropout
transmitter output stage providing true RS-232
performance from 3 to 5V supplies witha a dual
charge pump. The charge pump requires only four
small 0.1µF standard external capacitors for
operations from 3V supply.
The ST3232E has two receivers and two drivers.
DIP
SOP
SOP Large
TSSOP
The device is guaranteed to run at data rates of
250Kbps while maintaining RS-232 output levels.
Typical applications are Notebook, Subnotebook
and Palmtop Computers, Battery Powered
Equipment, Hand-Held Equipment, Peripherals
and Printers.
ORDERING CODES
Type
Temperature
Range
Package
Comments
ST3232ECN
ST3232EBN
ST3232ECD
ST3232EBD
ST3232ECDR
ST3232EBDR
ST3232ECW
ST3232EBW
ST3232ECWR
ST3232EBWR
ST3232ECTR
ST3232EBTR
0 to 70 °C
-40 to 85 °C
0 to 70 °C
-40 to 85 °C
0 to 70 °C
-40 to 85 °C
0 to 70 °C
-40 to 85 °C
0 to 70 °C
-40 to 85 °C
0 to 70 °C
-40 to 85 °C
DIP-16
DIP-16
SO-16 (Tube)
SO-16 (Tube)
SO-16 (Tape & Reel)
SO-16 (Tape & Reel)
SO-16 Large (Tube)
SO-16 Large (Tube)
SO-16 Large (Tape & Reel)
SO-16 Large (Tape & Reel)
TSSOP16 (Tape & Reel)
TSSOP16 (Tape & Reel)
25parts per tube / 40tube per box
25parts per tube / 40tube per box
50parts per tube / 20tube per box
50parts per tube / 20tube per box
2500 parts per reel
2500 parts per reel
50parts per tube / 20tube per box
50parts per tube / 20tube per box
1000 parts per reel
1000 parts per reel
2500 parts per reel
2500 parts per reel
May 2002
1/11
ST3232E
PIN CONFIGURATION
PIN DESCRIPTION
PlN N°
SYMBOL
NAME AND FUNCTION
1
C 1+
Positive Terminal for the first Charge Pump Capacitor
2
3
V+
C1 -
Doubled Voltage Terminal
Negative Terminal for the first Charge Pump Capacitor
4
C 2+
Positive Terminal for the second Charge Pump Capacitor
5
C2 -
Negative Terminal for the second Charge Pump Capacitor
6
7
VT2OUT
8
R2IN
9
R2OUT
Second Receiver Output Voltage
10
T2IN
Second Transmitter Input Voltage
11
T1IN
First Transmitter Input Voltage
12
R1OUT
First Receiver Output Voltage
13
R1IN
14
T1OUT
First Transmitter Output Voltage
15
GND
V CC
Ground
Supply Voltage
16
Inverted Voltage Terminal
Second Transmitter Output Voltage
Second Receiver Input Voltage
First Receiver Input Voltage
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
V CC
Supply Voltage
-0.3 to 6
V
V+
Doubled Voltage Terminal
(VCC - 0.3) to 7
V
VV+ +|V-|
TIN
Inverted Voltage Terminal
0.3 to -7
13
V
V
Transmitter Input Voltage Range
-0.3 to 6
V
± 25
V
RIN
Receiver Input Voltage Range
TOUT
Transmitter Output Voltage Range
R OUT
Receiver Output Voltage Range
tSHORT
Transmitter Output Short to GND Time
± 13.2
V
-0.3 to (VCC + 0.3)
V
Continuous
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is
not implied. V+ and V- can have a maximum magnitude of +7V, but their absolute addition can not exceed 13 V.
2/11
ST3232E
ESD PERFORMANCE: TRANSMITTER OUTPUTS, RECEIVER INPUTS
Symbol
ESD
ESD
Parameter
ESD Protection Voltage
ESD Protection Voltage
Test Conditions
Min.
Typ.
Max.
±15
±8
Human Body Model
IEC-1000-4-2
Unit
kV
kV
ELECTRICAL CHARACTERISTICS
(C1 - C4 = 0.1µF, VCC = 3V to 5.5V, TA = -40 to 85°C, unless otherwise specified.
Typical values are referred to TA = 25°C)
Symbol
Parameter
ISUPPLY VCC Power Supply Current
Test Condit ions
No Load
VCC = 3V or 5V
Min.
TA = 25°C
Typ.
Max.
Unit
0.3
1
mA
Typ.
Max.
Unit
LOGIC INPUT ELECTRICAL CHARACTERISTICS
(C1 - C4 = 0.1µF, VCC = 3V to 5.5V, TA = -40 to 85°C, unless otherwise specified.
Typical values are referred to TA = 25°C)
Symbol
Parameter
VTIL
Input Logic Threshold Low
V HYS
Transmitter Input
Histeresys
Input Logic Threshold High
VTIH
Test Condit ions
T-IN
0.8
0.25
V CC = 3.3V
Input Leakage Current
V
V
2
V CC = 5V
IIL
Min.
V
2.4
± 0.01
T-IN
±1
µA
Max.
Unit
TRANSMITTER ELECTRICAL CHARACTERISTICS
(C1 - C4 = 0.1µF tested at VCC = 3V to 5.5V, TA = -40 to 85°C, unless otherwise specified.
Typical values are referred to TA = 25°C)
Symbol
Parameter
VTOUT
Output Voltage Swing
RTOUT
Transmitter Output
Resistance
Output Short Circuit
Current
Output Leakage Current
ITSC
ITOL
Test Condit ions
All Transmitter outputs are loaded with
3KΩ to GND
V CC = V+ = V- = 0V
VOUT = ± 2V
V CC = 0V or 3V to 5.5V
Transmitters Disable
VOUT = ± 12V
Min.
Typ.
±5
± 5.4
V
300
10M
Ω
± 60
mA
± 25
µA
3/11
ST3232E
RECEIVER ELECTRICAL CHARACTERISTICS
(C1 - C4 = 0.1µF tested at VCC = 3V to 5.5V, TA = -40 to 85°C, unless otherwise specified.
Typical values are referred to TA = 25°C)
Symbol
VRIN
VRIL
VRIH
Parameter
Receiver Input Voltage
Operating Range
RS-232 Input Threshold
Low
RS-232 Input Threshold
High
Test Conditio ns
Min.
-25
Max.
Unit
25
V
TA = 25°C
VCC = 3.3V
0.6
1.1
TA = 25°C
VCC = 5V
0.8
1.5
TA = 25°C
VCC = 3.3V
1.4
2.4
TA = 25°C
VCC = 5V
1.8
2.4
VRIHYS Input Hysteresis
V
0.5
RRIN
Input Resistance
TA = 25°C
V ROL
TTL/CMOS Output Voltage
Low
TTL/CMOS Output Voltage
High
IOUT = 1.6mA
VROH
Typ.
3
IOUT = -1mA
5
V
V
7
KΩ
0.4
V
VCC-0.6 V CC-0.1
V
TIMING CHARACTERISTICS
(C1 - C4 = 0.1µF, VCC = 3V to 5.5V, TA = -40 to 85°C, unless otherwise specified.
Typical values are referred to TA = 25°C)
Symbol
DR
Parameter
Data Transfer Rate
tPHLR
tPLHR
Propagation Delay Input to
Output
tOER
|tPHLT
- tTHL|
Receiver Output Enable
Time
Receiver Output Disable
Time
Transmitter Propagation
Delay Difference
|tPHLR
- tTHR|
Receiver Propagation Delay
Difference
tODR
SRT
Trnasition Slew Rate
Test Conditions
R L = 3KΩ
C L2= 1000pF
one trasmitter switching
R XIN = RXOUT
CL = 150pF
Typ.
Max.
250
Unit
Kbps
0.15
µs
Normal Operation
50
ns
Normal Operation
50
ns
(Note 1)
200
ns
50
ns
TA = 25°C RL = 3KΩ to 7KΩ VCC = 3.3V
measured from +3V to -3V or -3V to +3V
C L = 150pF to 1000pF
C L = 150pF to 2500pF
Transmitter Skew is measured at the transmitter zero cross points
4/11
Min.
6
4
30
30
V/µs
V/µs
ST3232E
APPLICATION CIRCUITS
CAPACITANCE VALUE (µF)
VCC
C1
C2
C3
C4
Cbypass
3.0 to 3.6
4.5 to 5.5
3.0 to 5.5
0.1
0.047
0.1
0.1
0.33
0.47
0.1
0.33
0.47
0.1
0.33
0.47
0.1
0.1
0.1
5/11
ST3232E
TYPICAL PERFORMANCE CHARACTERISTICS (unless otherwise specified Tj = 25°C)
Figure 1 : Output Current vs Output High Voltage
Figure 4 : Output Current vs Output Low Voltage
Figure 2 : Output Current vs Output High Voltage
Figure 5 : Voltage Transfer Characteristics
for Trasmitter Inputs
Figure 3 : Output Current vs Output Low Voltage
Figure 6 : Receiver Input Resistance
6/11
ST3232E
Plastic DIP-16 (0.25) MECHANICAL DATA
mm.
inch
DIM.
MIN.
a1
0.51
B
0.77
TYP
MAX.
MIN.
TYP.
MAX.
0.020
1.65
0.030
0.065
b
0.5
0.020
b1
0.25
0.010
D
20
0.787
E
8.5
0.335
e
2.54
0.100
e3
17.78
0.700
F
7.1
0.280
I
5.1
0.201
L
Z
3.3
0.130
1.27
0.050
P001C
7/11
ST3232E
SO-16 MECHANICAL DATA
DIM.
mm.
MIN.
TYP
A
a1
inch
MAX.
MIN.
TYP.
1.75
0.1
0.068
0.2
a2
MAX.
0.003
0.007
1.65
0.064
b
0.35
0.46
0.013
0.018
b1
0.19
0.25
0.007
0.010
C
0.5
0.019
c1
45° (typ.)
D
9.8
10
0.385
0.393
E
5.8
6.2
0.228
0.244
e
1.27
0.050
e3
8.89
0.350
F
3.8
4.0
0.149
0.157
G
4.6
5.3
0.181
0.208
L
0.5
1.27
0.019
0.050
M
S
0.62
0.024
8° (max.)
PO13H
8/11
ST3232E
SO-16L MECHANICAL DATA
DIM.
mm.
MIN.
TYP
A
a1
inch
MAX.
MIN.
TYP.
2.65
0.1
0.104
0.2
a2
MAX.
0.004
0.008
2.45
0.096
b
0.35
0.49
0.014
0.019
b1
0.23
0.32
0.009
0.012
C
0.5
0.020
c1
45° (typ.)
D
10.1
10.5
0.397
0.413
E
10.0
10.65
0.393
0.419
e
1.27
0.050
e3
8.89
0.350
F
7.4
7.6
0.291
0.300
0.5
1.27
0.020
0.050
G
L
M
S
0.75
0.029
8° (max.)
PO13I
9/11
ST3232E
TSSOP16 MECHANICAL DATA
mm.
inch
DIM.
MIN.
TYP
A
MAX.
MIN.
TYP.
MAX.
1.2
A1
0.05
A2
0.8
b
0.047
0.15
0.002
0.004
0.006
1.05
0.031
0.039
0.041
0.19
0.30
0.007
0.012
c
0.09
0.20
0.004
0.0089
D
4.9
5
5.1
0.193
0.197
0.201
E
6.2
6.4
6.6
0.244
0.252
0.260
E1
4.3
4.4
4.48
0.169
0.173
0.176
1
e
0.65 BSC
K
0°
L
0.45
A
0.60
0.0256 BSC
8°
0°
0.75
0.018
8°
0.024
0.030
A2
A1
b
e
K
c
L
E
D
E1
PIN 1 IDENTIFICATION
1
0080338D
10/11
ST3232E
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the
consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from
its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications
mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information
previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or
systems without express written approval of STMicroelectronics.
The ST logo is a registered trademark of STMicroelectronics
2002 STMicroelectronics - Printed in Italy - All Rights Reserved
STMicroelectronics GROUP OF COMPANIES
Australia - Brazil - Canada - China - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco
Singapore - Spain - Sweden - Switzerland - United Kingdom - United States.
http://www.st.com
11/11
This datasheet has been download from:
www.datasheetcatalog.com
Datasheets for electronics components.
很抱歉,暂时无法提供与“ST3232EBD”相匹配的价格&库存,您可以联系我们找货
免费人工找货