ST3241E_06 STMICROELECTRONICS | Alldatasheet

Document overview

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Technical content

Datasheet sections

  • 1 Pin configuration
  • 2 Maximum ratings
  • 3 Electrical characteristics
  • 4 Application circuits
  • 5 Package mechanical data
  • 6 Revision history

Part number Temperature range Package Comments ST3241ECDR 0 to 70°C SO-28 (Tape & Reel) 1000 parts per reel ST3241EBDR -40 to 85°C SO-28 (Tape & Reel) 1000 parts per reel ST3241ECPR 0 to 70°C SSOP-28 (Tape & Reel) 1350 parts per reel ST3241EBPR -40 to 85°C SSOP-28 (Tape & Reel) 1350 parts per reel ST3241ECTR 0 to 70°C TSSOP28 (Tape & Reel) 2500 parts per reel ST3241EBTR -40 to 85°C TSSOP28 (Tape & Reel) 2500 parts per reel ST3241E ±15kV ESD Protected 3 to 5.5V, 400kbps, RS-232 transceiver with auto-powerdown General features I ESD Protection for RS-232 I/O pins: ±8KV IEC 1000-4-2 Contact discharge ±15KV Human body model I 1µA Supply current achieved when in auto- powerdown I 250Kbps Minimum guaranteed data rate I Guaranteed 6V/ms slew rate range I Guaranteed mouse driveability I 0.1µF External capacitors I Meet EIA/TIA-232 specifications down to 3V I Available in SO-28, SSOP-28 and TSSOP28 packages

Description

The ST3241E device consists of 3 drivers, 5 receivers and a dual charge-pump circuit. The device meets the requirements of EIA/TIA and V.28/V.24 communication standards providing high data rate capability and enhanced electrostatic discharge (ESD) protection. All transmitter outputs and receiver input are protected to ±8KV USING IEC 1000-4-2 contact discharge and ±15KV using the Human Body Model. The receiver R2 is always active to implement a wake-up feature for serial port. The ST3241E has a proprietary low-dropout transmitter output stage enabling true RS-232 performance from a 3.0V to 5.5V supply with a dual charge pump. The device is guaranteed to run at data rates of 250kbps while maintaining RS-232 output levels. It is a complete serial port (3 drivers, 5 receivers) intended for notebook or subnotebook computers. Receivers R1 and R2 have extra outputs in addition to their standard outputs. These extra output are always active. Typical application are in notebook, subnotebook, palmtop computers, battery-powered equipment, hand-held equipment, peripherals and printers.. SOP SSOP TSSOP

1 Pin configuration

Figure 1. Pin configuration Table 1. Pin description

10 T2 OUT Second transmitter output voltage

11 T3 OUT Third transmitter output voltage

12 T3 IN Third transmitter input voltage

13 T2 IN Second transmitter input voltage

14 T1 IN First transmitter input voltage

15 R5 OUT Fifth Receiver Output Voltage

16 R4 OUT Fourth receiver output voltage

17 R3 OUT Third receiver output voltage

18 R2 OUT Second receiver output voltage

19 R1 OUT First receiver output voltage

20 R2 OUTB Non-inverting complementary receiver output, always active for wake-up

21 R1 OUTB Non-inverting complementary receiver output, always active for wake-up

22 SHDN Shutdown control. Active low.

24 C 1- Negative terminal of voltage- charge pump capacitor

25 GND Ground

26 V CC Supply voltage

Table 2. Shutdown and enable control truth table

2 Maximum ratings

occur. Functional operation under these condition is not implied. Table 3. Absolute maximum ratings Table 4. ESD Performance: transmitter outputs, receiver inputs

3 Electrical characteristics

Table 5. Electrical characteristics (C1 - C4 = 0.1µF, VCC = 3V to 5.5V, TA = -40 to 85°C, unless otherwise specified. Table 6. Logic input and receiver output electrical characteristics (C1 - C4 = 0.1µF, VCC = 3V to 5.5V, TA = -40 to 85°C, unless otherwise specified. Table 7. Receiver output electrical characteristics (C1 - C4 = 0.1µF, VCC = 3V to 5.5V, TA = -40 to 85°C, unless otherwise specified. Table 8. Transmitter electrical characteristics (C1 - C4 = 0.1µF, VCC = 3V to 5.5V, TA = -40 to 85°C, unless otherwise specified.

Table 9. Receiver electrical characteristics (C1 - C4 = 0.1µF, VCC = 3V to 5.5V, TA = -40 to 85°C, unless otherwise specified. Table 10. Timing characteristics (C1 - C4 = 0.1µF, VCC = 3V to 5.5V, TA = -40 to 85°C, unless otherwise specified.

4 Application circuits

Figure 2. Application circuits Table 11. Required minimum capacitance value (µF)

5 Package mechanical data

In order to meet environmental requirements, ST offers these devices in ECOPACK® packages. These packages have a Lead-free second level interconnect. The category of second level interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com

/i13 DIM. mm. inch A 2.65 0.104 a1 0.1 0.3 0.004 0.012 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 17.70 18.10 0.697 0.713 E 10.00 10.65 0.393 0.419 e 1.27 0.050 e3 16.51 0.650 F 7.40 7.60 0.291 0.300 L 0.50 1.27 0.020 0.050 S° /i13 (max.) SO-28 MECHANICAL DATA/i13 0016023

DIM. mm. inch A 2 0.079 A1 0.050 0.002 b 0.22 0.38 0.009 0.015 c 0.09 0.25 0.004 0.010 e 0.65 BSC 0.0256 BSC K0 ° /i13 10°/i13 0°/i13 10°/i13 SSOP28 MECHANICAL DATA

DIM. mm. inch A 1.2 0.047 b 0.19 0.30 0.007 0.012 c 0.09 0.20 0.004 0.0079 e 0.65 BSC 0.0256 BSC TSSOP28 MECHANICAL DATA 0128292B

DIM. mm. inch A 330 12.992 C 12.8 13.2 0.504 0.519 D 20.2 0.795 N 60 2.362 T 30.4 1.197 Ao 10.8 11.0 0.425 0.433 Bo 18.2 18.4 0.716 0.724 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 0.476 Tape & Reel SO-28 MECHANICAL DATA

DIM. mm. inch A 330 12.992 C 12.8 13.2 0.504 0.519 D 20.2 0.795 N 60 2.362 T 22.4 0.882 Ao 8.4 8.6 0.331 0.339 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 0.476 Tape & Reel SSOP28 MECHANICAL DATA

DIM. mm. inch A 330 12.992 C 12.8 13.2 0.504 0.519 D 20.2 0.795 N 60 2.362 T 22.4 0.882 Ao 6.8 7 0.268 0.276 Bo 10.1 10.3 0.398 0.406 Ko 1.7 1.9 0.067 0.075 Po 3.9 4.1 0.153 0.161 P 11.9 12.1 0.468 0.476 Tape & Reel TSSOP28 MECHANICAL DATA

6 Revision history

Table 12. Revision history 21-Jun-2004 2 The I L (Output Leakage Current) mA ==> µA in table 8. 03-Apr-2006 3 Order codes has been updated and new template.