Datenblatt für ST3232EB/C von STMicroelectronics

This is information on a product in full production.
July 2018 DocID8784 Rev 7 1/14
ST3232EB
ST3232EC
±15 kV ESD protection 3 to 5.5 V low power, up to
250 kbps, RS-232 drivers and receivers
Datasheet
-
production data
Features
•ESD protection for RS-232 I/O pins
•±15 kV human body model
•±8 kV IEC 1000-4-2 contact discharge
•300 µA supply current
•250 kbps minimum guaranteed data rate
•6 V/µs minimum guaranteed slew rate
•Meet EIA/TIA-232 specifications down to 3 V
•Available in SO-16 and TSSOP16
Applications
•Notebook, subnotebook and palmtop
computers
•Battery-powered equipment
•Hand-held equipment
•Peripherals and printers
Description
The ST3232E is a 3 V 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 ± 8 kV using IEC1000-4-2 contact
discharge and ± 15 kV using the human body
model. The ST3232E has a proprietary low-
dropout transmitter output stage providing true
RS-232 performance from 3 to 5 V supplies with a
dual charge pump. The charge pump requires
only four small 0.1 µF standard external
capacitors for operations from 3 V supply.
The ST3232E has two receivers and two drivers.
The device is guaranteed to run at data rates of
250 kbps while maintaining RS-232 output levels.
TSSOP16
SO-16
Table 1. Device summary
Order code Temperature range Package
ST3232ECDR 0 to 70 °C SO-16 (tape and reel)
ST3232EBDR -40 to 85 °C SO-16 (tape and reel)
ST3232ECTR 0 to 70 °C TSSOP16 (tape and reel)
ST3232EBTR -40 to 85 °C TSSOP16 (tape and reel)
www.st.com
Contents ST3232EB, ST3232EC
2/14 DocID8784 Rev 7
Contents
1 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4 Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
5 Typical performance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
6 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6.1 SO-16 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6.2 TSSOP-16 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
7 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
‘5 15 u 13 12 u m vcmga 6ND Tum R1,M mom Hm T2 m RZW
DocID8784 Rev 7 3/14
ST3232EB, ST3232EC Pin configuration
14
1 Pin configuration
Figure 1. Pin connection
Table 2. Pin description
Pin n° Symbol Name and function
1C
1
+ Positive terminal for the first charge pump capacitor
2 V+ Doubled voltage terminal
3C
1
- Negative Terminal for the first charge pump capacitor
4C
2
+ Positive terminal for the second charge pump capacitor
5C
2
- Negative terminal for the second charge pump capacitor
6 V- Inverted voltage terminal
7T2
OUT
Second transmitter output voltage
8R2
IN
Second receiver input voltage
9R2
OUT
Second receiver output voltage
10 T2
IN
Second transmitter input voltage
11 T1
IN
First transmitter input voltage
12 R1
OUT
First receiver output voltage
13 R1
IN
First receiver input voltage
14 T1
OUT
First transmitter output voltage
15 GND Ground
16 V
CC
Supply voltage
Absolute maximum ratings ST3232EB, ST3232EC
4/14 DocID8784 Rev 7
2 Absolute maximum ratings
Note: Absolute maximum ratings are those values beyond which damage to the device may occur.
Functional operation under these condition is not implied.
Externally applied V+ and V- can have a maximum magnitude of +7 V, but their absolute
addition can not exceed 13 V.
Running on internal charge pump, intrinsic self limitation allows exceeding those values
without any damage.
Start-up voltage sequence (V
CC
, then V+, then V-) is critical, therefore it is not
recommended to use this device using externally applied voltage to V+ and V-.
Table 3. Absolute maximum ratings
Symbol Parameter Value Unit
V
CC
Supply voltage -0.3 to 6 V
V+ Doubled voltage terminal (V
CC
- 0.3) to 7 V
V- Inverted voltage terminal 0.3 to -7 V
V+ +|V-| 13 V
T
IN
Transmitter input voltage range -0.3 to 6 V
R
IN
Receiver input voltage range ± 25 V
T
OUT
Transmitter output voltage range ± 13.2 V
R
OUT
Receiver output voltage range -0.3 to (V
CC
+ 0.3) V
t
SHORT
Transmitter output short-to-ground time Continuous
T
j
Maximum junction temperature 150
°C
R
th-jc
Thermal resistance junction-to-case
(1)
(2)
1. Short-circuits can cause excessive heating and destructive dissipation.
2. R
th
are typical values.
°C/W
SO-16 30
TSSOP16 25
R
th-ja
Thermal resistance junction-to-ambient
(1) (2)
SO-16 95
TSSOP16 95
Figure 2. ESD performance: transmitter outputs, receiver inputs
Symbol Parameter Test conditions Min. Typ. Max. Unit
ESD ESD protection
voltage Human body model ±15 kV
ESD ESD protection
voltage IEC-1000-4-2 ±8kV
DocID8784 Rev 7 5/14
ST3232EB, ST3232EC Electrical characteristics
14
3 Electrical characteristics
C
1
- C
4
= 0.1 µF, V
CC
= 3 V to 5.5 V, T
A
= -40 to 85 °C, unless otherwise specified. Typical
values are referred to T
A
= 25 °C.
C
1
- C
4
= 0.1 µF, V
CC
= 3 V to 5.5 V, T
A
= -40 to 85 °C, unless otherwise specified. Typical
values are referred to T
A
= 25 °C.
C
1
- C
4
= 0.1 µF tested at 3.3 V ± 10 %, V
CC
= 3 V to 5.5 V, T
A
= -40 to 85 °C, unless
otherwise specified. Typical values are referred to T
A
= 25 °C.
Table 4. Electrical characteristics
Symbol Parameter Test conditions Min. Typ. Max. Unit
I
SUPPLY
V
CC
Power supply current No Load, V
CC
= 3 V or 5 V, T
A
= 25 °C 0.3 1 mA
Table 5. Logic input
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
TIL
Input logic threshold low T-IN 0.8 V
V
HYS
Transmitter input hysteresis 0.25 V
V
TIH
Input logic threshold high V
CC
= 3.3 V 2 V
V
CC
= 5 V 2.4
I
IL
Input leakage current T-IN ± 0.01 ± 1µA
Table 6. Transmitter
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
TOUT
Output voltage swing All transmitter outputs are loaded with
3 kΩ to GND ± 5± 5.4 V
R
TOUT
Transmitter output
resistance V
CC
= 0 V, V
OUT
= ± 2 V 300 10M W
I
SC
Output short-circuit current ± 60 mA
I
TOL
Output leakage current V
CC
= 0 V or 3.3 V to 5.5 V
V
OUT
= ± 12 V
Transmitters disable
± 25 µA
Electrical characteristics ST3232EB, ST3232EC
6/14 DocID8784 Rev 7
C
1
- C
4
= 0.1 µF tested at 3.3 V ± 10%, V
CC
= 3 V to 5.5 V, T
A
= -40 to 85 °C, unless
otherwise specified. Typical values are referred to T
A
= 25 °C.
C
1
- C
4
= 0.1 µF tested at 3.3 V ± 10%, V
CC
= 3 V to 5.5 V, T
A
= -40 to 85 °C, unless
otherwise specified. Typical values are referred to T
A
= 25 °C
Table 7. Receiver
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
RIN
Receiver input voltage operating
range -25 25 V
V
RIL
RS-232 input threshold low T
A
= 25 °C, V
CC
= 3.3 V 0.6 1.1 V
T
A
= 25 °C, V
CC
= 5 V 0.8 1.5
V
RIH
RS-232 input threshold high T
A
= 25 °C, V
CC
= 3.3 V 1.4 2.4 V
T
A
= 25 °C, V
CC
= 5 V 1.8 2.4
V
RIHYS
Input hysteresis 0.5 V
R
RIN
Input resistance T
A
= 25 °C 3 5 7 kΩ
V
ROL
TTL/CMOS Output voltage low I
OUT
= 1.6 mA 0.4 V
V
ROH
TTL/CMOS Output voltage high I
OUT
= -1 mA V
CC
-0.6 V
CC
-0.1 V
Table 8. Timing characteristics
Symbol Parameter Test conditions Min. Typ. Max. Unit
D
R
Data transfer rate R
L
= 3 kΩ, C
L2
= 1000 pF
one transmitter switching 250 kbps
t
PHLR
t
PLHR
Propagation delay input to
output R
XIN
= R
XOUT
, C
L
= 150 pF 0.15 µs
t
OER
Receiver output enable time Normal operation 50 ns
t
ODR
Receiver output disable time Normal operation 50 ns
|t
PHLT
- t
THL
|Transmitter propagation
delay difference
(1)
200 ns
|t
PHLR
- t
THR
|Receiver propagation delay
difference 50 ns
S
RT
Transition slew rate
T
A
= 25 °C R
L
= 3 kΩ to 7 kΩ V
CC
=
3.3 V measured from +3 V to -3 V or -3 V
to +3 V
C
L
= 150 pF to 1000 pF
C
L
= 150 pF to 2500 pF 6
430
30
V/µs
V/µs
1. Transmitter skew is measured at the transmitter zero-cross points.
+3.5V INPUT bepass fl * 15 21+ Van w 1 I CS m, 22+ v7 __ A 5 52- T u mu mm m TTL/CMOS TNF‘UTS R3232 OUTPUTS m mm mm 7 m TTL/CMOS OUTPUTS R5232 INPUTS s new km a T T 5mm
DocID8784 Rev 7 7/14
ST3232EB, ST3232EC Application
14
4 Application
Figure 3. Application circuits
Table 9. Capacitance value (µF)
V
CC
C1 C2 C3 C4 Cbypass
3.0 to 3.6 0.1 0.1 0.1 0.1 0.1
4.5 to 5.5 0.047 0.33 0.33 0.33 0.1
3.0 to 5.5 0.1 0.47 0.47 0.47 0.1
muse 25mm Wm) WM) -2.5 —5.0 —7.5 40.0 42.5 45A ,3 47.5 -3.5 -3 -2.5 -2 -1.5 -1 -D.5V:r.—VOH(V) is 75 74 73 72 *IVchoHW) :smsa :sama lm(mA) MM“) 15 I5 u 12 ID 5 s A 2 n a I 2 3 A 5 vow) o 5.5 ‘ 1.5 2 2.5 3 v5(v) :sn797n 95mm Mum) 1.5 0,5 4.5 —z,5 715 75 5 lo v.(v) 711 ,5 74 n A 3 WW)
Typical performance characteristics ST3232EB, ST3232EC
8/14 DocID8784 Rev 7
5 Typical performance characteristics
Unless otherwise specified T
J
= 25 °C.
Figure 4. Output current vs. output high voltage Figure 5. Output current vs. output high voltage
Figure 6. Output current vs. output low voltage Figure 7. Output current vs. output low voltage
Figure 8. Voltage transfer characteristics for
transmitter inputs Figure 9. Receiver input resistance
DocID8784 Rev 7 9/14
ST3232EB, ST3232EC Package information
14
6 Package information
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK
®
packages, depending on their level of environmental compliance. ECOPACK
®
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK
®
is an ST trademark.
Package information ST3232EB, ST3232EC
10/14 DocID8784 Rev 7
6.1 SO-16 package information
Figure 10. SO-16 package outline
Dimension D does not include mold flash, protrusions or gate burrs. Mold flash, protrusions
or gate burrs shall not exceed 0.15 mm in total (both side).
Dimension “E1” does not include interlead flash or protrusions.Interlead flash or protrusions
shall not exceed 0.25mm per side.
Dimensions referred to the bottom side of the package.
Table 10. SO-16 package mechanical data
Ref. Dimensions (mm)
Min. Typ. Max.
A1.75
A1 0.10 0.25
A2 1.25
b0.31 0.51
c0.17 0.25
D 9.80 9.90 10.00
E 5.80 6.00 6.20
E1 3.80 3.90 4.00
e1.27
h0.25 0.50
L0.40 1.27
k0 8
ccc 0.10
B*
N
H

'
E
DocID8784 Rev 7 11/14
ST3232EB, ST3232EC Package information
14
Figure 11. SO-16 recommended footprint
L l CH w '
Package information ST3232EB, ST3232EC
12/14 DocID8784 Rev 7
6.2 TSSOP-16 package information
Figure 12. TSSOP-16 package outline
TSSOP stands for thin shrink small outline package. Dimension “D” does not include mold
flash, protrusions or gate burrs. Mold flash, protrusions or gate burrs shall not exceed 0.15
mm per side. Dimension “E1” does not include interlead flash or protrusions. Interlead flash
or protrusions shall not exceed 0.25 mm per side.
Table 11. TSSOP-16 package mechanical data
Ref.
Dimensions
mm
Min. Typ. Max.
A1.20
A1 0.05 0.15
A2 0.80 1.00 1.05
b0.19 0.30
c0.09 0.20
D 4.90 5.00 5.10
E 6.20 6.40 6.60
E1 4.30 4.40 4.50
e0.65
L 0.45 0.60 0.75
L1 1.00
k0 8
aaa 0.10
B(
DocID8784 Rev 7 13/14
ST3232EB, ST3232EC Revision history
14
7 Revision history
Table 12. Document revision history
Date Revision Changes
06-Sep-2006 3 Order codes updated.
21-Jan-2008 4 Added: Table 1 and note on Table 3.
08-Feb-2008 5 Modified: Table 1 on page 1.
05-Jan-2010 6 Modified: Table 1 on page 1.
04-Jul-2018 7 Updated Table 3: Absolute maximum ratings and Section 6: Package
information.
ST3232EB, ST3232EC
14/14 DocID8784 Rev 7
IMPORTANT NOTICE – PLEASE READ CAREFULLY
STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and
improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on
ST products before placing orders. ST products are sold pursuant to ST’s terms and conditions of sale in place at the time of order
acknowledgement.
Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or
the design of Purchasers’ products.
No license, express or implied, to any intellectual property right is granted by ST herein.
Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product.
ST and the ST logo are trademarks of ST. All other product or service names are the property of their respective owners.
Information in this document supersedes and replaces information previously supplied in any prior versions of this document.
© 2018 STMicroelectronics – All rights reserved