Datasheet

ManualsBrandsSTMICROELECTRONICS ManualsInterface ICsInterface IC - transceivers RS232 2/2 TSSOP 16

January 2010 Doc ID 8784 Rev 6 1/17

ST3232EB

ST3232EC

± 15 kV ESD protection 3 to 5.5 V low power,

up to 250 kbps, RS-232 drivers and receivers

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, SO-16 large 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. 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.

SO-16 Large

TSSOP16

SO-16

Table 1. Device summary

Order codes Temperature range Packages Packaging

ST3232ECDR 0 to 70 °C SO-16 (tape and reel) 2500 parts per reel

ST3232EBDR -40 to 85 °C SO-16 (tape and reel) 2500 parts per reel

ST3232ECTR 0 to 70 °C TSSOP16 (tape and reel) 2500 parts per reel

ST3232EBTR -40 to 85 °C TSSOP16 (tape and reel) 2500 parts per reel

www.st.com

Summary of content (17 pages)

PAGE 1
ST3232EB ST3232EC ± 15 kV ESD protection 3 to 5.
PAGE 2
Contents ST3232EB, ST3232EC Contents 1 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PAGE 3
ST3232EB, ST3232EC Pin configuration 1 Pin configuration Figure 1. Pin connection Table 2.
PAGE 4
Absolute maximum ratings ST3232EB, ST3232EC 2 Absolute maximum ratings Table 3. Absolute maximum ratings Symbol Parameter Value Unit -0.3 to 6 V VCC Supply voltage V+ Doubled voltage terminal (VCC - 0.3) to 7 V V- Inverted voltage terminal 0.3 to -7 V 13 V -0.3 to 6 V ± 25 V ± 13.2 V -0.3 to (VCC + 0.
PAGE 5
ST3232EB, ST3232EC 3 Electrical characteristics Electrical characteristics C1 - C4 = 0.1 µF, VCC = 3 V to 5.5 V, TA = -40 to 85 °C, unless otherwise specified. Typical values are referred to TA = 25 °C. Table 4. Symbol ISUPPLY Electrical characteristics Parameter Test conditions Min. VCC Power supply current No Load, VCC = 3V or 5V, TA = 25°C Typ. Max. Unit 0.3 1 mA C1 - C4 = 0.1 µF, VCC = 3 V to 5.5 V, TA = -40 to 85 °C, unless otherwise specified. Typical values are referred to TA = 25 °C.
PAGE 6
Electrical characteristics ST3232EB, ST3232EC C1 - C4 = 0.1 µF tested at 3.3 V ± 10 %, VCC = 3 V to 5.5 V, TA = -40 to 85 °C, unless otherwise specified. Typical values are referred to TA = 25 °C. Table 7. Receiver Symbol Parameter Test conditions VRIN Receiver input voltage operating range VRIL RS-232 Input threshold low VRIH RS-232 Input threshold high Min. Typ. -25 TA = 25°C, VCC = 3.3V 0.6 1.1 TA = 25°C, VCC = 5V 0.8 1.5 Max. Unit 25 V V TA = 25°C, VCC = 3.3V 1.4 2.
PAGE 7
ST3232EB, ST3232EC Application 4 Application Figure 3. Application circuits Table 9. Capacitance value (µF) VCC 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.
PAGE 8
Typical performance characteristics ST3232EB, ST3232EC 5 Typical performance characteristics Figure 4. Unless otherwise specified TJ = 25 °C. Output current vs. output high Figure 5. voltage Output current vs. output high voltage Figure 6. Output current vs. output low voltage Output current vs. output low voltage Figure 8. Voltage transfer characteristics for Figure 9. transmitter inputs 8/17 Figure 7.
PAGE 9
ST3232EB, ST3232EC 6 Package mechanical data Package mechanical data 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.
PAGE 10
Package mechanical data ST3232EB, ST3232EC SO-16 mechanical data Dim. mm. Min. Typ. A a1 inch. Max. Min. Typ. 1.75 0.1 0.068 0.25 a2 Max. 0.004 0.010 1.64 0.063 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.
PAGE 11
ST3232EB, ST3232EC Package mechanical data 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.
PAGE 12
Package mechanical data ST3232EB, ST3232EC 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 0.0079 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.
PAGE 13
ST3232EB, ST3232EC Package mechanical data Tape & reel SO-16 mechanical data mm. inch. Dim. Min. A Typ. Max. Min. 330 Max. 12.992 C 12.8 D 20.2 0.795 N 60 2.362 T 13.2 Typ. 0.504 22.4 0.519 0.882 Ao 6.45 6.65 0.254 0.262 Bo 10.3 10.5 0.406 0.414 Ko 2.1 2.3 0.082 0.090 Po 3.9 4.1 0.153 0.161 P 7.9 8.1 0.311 0.
PAGE 14
Package mechanical data ST3232EB, ST3232EC Tape & reel SO-16L mechanical data mm. inch. Dim. Min. A Max. Min. 330 13.2 Typ. Max. 12.992 C 12.8 D 20.2 0.795 N 60 2.362 T 14/17 Typ. 0.504 22.4 0.519 0.882 Ao 10.8 11.0 0.425 0.433 Bo 10.7 10.9 0.421 0.429 Ko 2.9 3.1 0.114 0.122 Po 3.9 4.1 0.153 0.161 P 11.9 12.1 0.468 0.
PAGE 15
ST3232EB, ST3232EC Package mechanical data Tape & reel TSSOP16 mechanical data mm. inch. Dim. Min. A Typ. Max. Min. 330 Max. 12.992 C 12.8 D 20.2 0.795 N 60 2.362 T 13.2 Typ. 0.504 22.4 0.519 0.882 Ao 6.7 6.9 0.264 0.272 Bo 5.3 5.5 0.209 0.217 Ko 1.6 1.8 0.063 0.071 Po 3.9 4.1 0.153 0.161 P 7.9 8.1 0.311 0.
PAGE 16
Revision history ST3232EB, ST3232EC 7 Revision history Table 10. Document revision history Date Revision 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.
PAGE 17
ST3232EB, ST3232EC Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale.