ST75185

ST75185 STMICROELECTRONICS | Alldatasheet

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■ MEETS AND EXCEEDS THE REQUIREMENTS OF EIA/TIA-232-E AND ITUV.28 STANDARD ■ SINGLE CHIP WITH EASY INTERFACE BETWEEN UART AND SERIAL PORT CONNECTOR OF IBM PC/AT TM AND COMPATIBLES ■ DESIGNED TO SUPPORT DATA RATES UP TO 120 Kbps ■ PINOUT COMPATIBLE WITH ST75C185

DESCRIPTION

The ST75185 contains three drivers and five receivers. The pinout matches the DB9S connector design in order to decrease the part count, reduce the board space required and allow easy interconnection of the UART and serial port connector of IBM PC/AT TM and compatibles. The bipolar circuits and processing of the ST75185 provides a rugged low-cost solution for this function at the expense of quiescent power and external passive components relative to the ST75C185. The ST75185 complies with the requirements of the EIA/TIA 232-E and ITU (formally CCITT) v.28 standards. These standards are for data interchange between a host computer and peripheral at signalling rates up to 20k-bits/s. The switching speeds of the ST75185 are fast enough to support rates up to 120K-bits/s with lower capacitive loads (shorter cables). Interoperability at the higher signalling rates cannot be assured unless the designer has design control of the cable and the interface circuits at the both ends. For interoperability at signalling rates to 120 K-bits/s, use of EIA/ITA-423-B (ITU v.10) and EIA/ ITA-422-B (ITU v.11) standards are recommended. The ST75185 is characterized for operation over the range of 0°C to 70°C. ORDERING CODES Type Temperature Range Package Comments ST75185CTR 0 to 70 °C TSSOP20 (Tape & Reel) 2500 parts per reel ST75185CD 0 to 70 °C SO-20 (Tube) 40 parts per tube / 25 tubes per box ST75185CDR 0 to 70 °C SO-20 (Tape & Reel) 1000 parts per reel ST75185CPR 0 to 70 °C SSOP-20 (Tape & Reel) 1350 parts per reel ST75185 MULTIPLE RS-232 DRIVERS AND RECEIVERS SOP TSSOP SSOP

PIN CONNECTION IEC LOGIC SYMBOL AND LOGIC DIAGRAM PIN DESCRIPTION PlN N° SYMBOL NAME AND FUNCTION 1V DD Supply Voltage (+12V)

2 RA1 First Receiver Input

3 RA2 Second Receiver Input

4 RA3 Third Receiver Input

5 DY1 First Driver Output

6 DY2 Second Driver Output

7 RA4 Fourth Receiver Input

8 DY3 Third Driver Output

9 RA5 Fifth Receiver Input

SS Supply Voltage (-12V)

11 GND Ground

12 RY5 Fifth Receiver Ouput

13 DA3 Third Driver Intput

14 RY4 Fourth Receiver Ouput

15 DA2 Second Driver Input

16 DA1 First Driver Input

17 RY3 Third Receiver Ouput

18 RY2 Second Receiver Output

19 RY1 First Receiver Output

CC Supply Voltage (+5V)

ABSOLUTE MAXIMUM RATINGS OVER OPERATING FREE-AIR TEMPERATURE RANGE Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied. NOTE 1: All voltage are with respect to the network ground terminal. DISSIPATION RATING TABLE (*) This is the reverse of the traditional junction-case thermal resistance RtJ-C RECOMMENDED OPERATING CONDITIONS Symbol Parameter Value Unit VDD Supply Voltage (Note 1) 15 V V SS Supply Voltage (Note 1) -15 V VCC Supply Voltage (Note 1) 10 V VI Input Voltage Range (DRIVER) -15 to 7 V VI Input Voltage Range (RECEIVER) -30 to 30 V VO Output Voltage Range (DRIVER) -15 to 15 V IO Receiver Low Level Output Current 20 mA P D Continuous Total Power Dissipation See dissipation Rating Table TA Operating Free-Air Tempereature Range 0t o7 0 ° C Tstg Storage Temperature Range -65 to + 150 °C TL Lead Temperature 1.6mm from case for 10 sec 260 °C Package Power Rating at TA ≤ 25°C Derating Factor above TA = 25°C (*) Power Rating at TA ≤ 70°C MICROPACKAGE (D) 1125 mW 9.0 mW/°C 720 mW Symbol Parameter Min Max Unit VDD Supply Voltage 7.5 15 V VSS Supply Voltage -7.5 -15 V VCC Supply Voltage 4.5 5.5 V VI Driver Input Voltage 0 VCC V IOH High Level Output Current DRIVER -6 mARECEIVER -0.5 IOL Low Level Output Current DRIVER 6 mARECEIVER 16 TA Operating Free-Air Tempereature Range 07 0 ° C

DRIVER ELECTRICAL CHARACTERISTICS OVER OPERATING FREE-AIR TEMPERATURE RANGE (VDD =9 V ,VSS =- 9 V ,VCC = 5V, unless otherwise specified) NOTE 3: The algebraic convention, where the more positive (less negative) limits designated as maximum, is used in this datasheet for logic levels only (e.g. if - 10V is a maximum, the typical value is a more negative voltage). NOTE 4: Output short circuit conditions must maintain the total power dissipation below absolute maximum ratings. NOTE 5: Test conditions are those specified by EIA-232-E and as listed above. Symbol Parameter Test Conditions Value Unit VDD VSS Min. Typ. Max. IDD Supply Current from VDD 9 -9 No load. All inputs at 1.9V 15 mA 12 -12 19 15 -15 25 9 -9 No load. All inputs at 0.8V 4.5 mA 12 -12 5.5 15 -15 9 I SS Supply Current from VSS 9 -9 No load. All inputs at 1.9V -15 mA 12 -12 -19 15 -15 -25 9 -9 No load. All inputs at 0.8V -3.2 mA 12 -12 -3.2 15 -15 -3.2 I CC Supply Current from VCC No load. All inputs at 5V VCC =5 V 30 mA Symbol Parameter Test Conditions Value Unit Min. Typ. Max. VOH High Level Output Voltage VIL=0 . 8V RL =3 KΩ (See Figure 1) 6 7.5 V V OL Low Level Output Voltage (Note 3) VIH =1 . 9V RL =3 KΩ (See Figure 1) -7.5 -6 V IIH High Level Input Current VI= 5 V (See Figure 2) 10 µA IIL Low Level Input Current VI= 0 V (See Figure 2) −1.6 mA IOS(H) High Level Short Circuit Output Current (Note 4) VIL=0 . 8V VO = 0 V (See Figure 1) -4.5 −12 −19.5 mA IOS(L) Low Level Short Circuit Output Current VIH =2V V O = 0 V (See Figure 1) 4.5 12 19.5 mA R O Output Resistance V DD =V SS =V CC =0V V O = -2 to 2 V (Note 5) 300 Ω

DRIVER SWITCHING CHARACTERISTICS (VDD = 12V, VSS = -12V, VCC =5 V ,TA =2 5° C ) NOTE 6: Measured between -3V and 3V points of output waveform (EIA-232-E conditions), all unused inputs are tied. RECEIVER ELECTRICAL CHARACTERISTICS OVER OPERATING CONDITIONS All typical values are at TA = 25°C, VCC = 5V, VDD = 9V and VSS=-9V RECEIVER SWITCHING CHARACTERISTICS (VDD =1 2 V ,VSS =- 1 2 V ,VCC =5 V TA = 25°C) Symbol Parameter Test Conditions Value Unit Min. Typ. Max. tPLH Propagation Delay Time, Low to High Level Output R L =3t o7K Ω C L =1 5p F (See Figure 3, 4) 315 500 ns tPHL Propagation Delay Time, High to Low Level Output R L =3t o7K Ω C L =1 5p F (See Figure 3, 4) 75 175 ns tTLH Transition Time Low to High Level Output R L =3t o7K Ω C L =1 5p F (See Figure 3, 4) 60 100 ns R L =3t o7K Ω C L = 2500 pF (Note 6, See Figure 3, 4) 1.7 2.5 µs tTHL Transition Time High to Low Level Output R L =3t o7K Ω C L =1 5p F (See Figure 3, 4) 40 7.5 ns R L =3t o7K Ω C L = 2500 pF (Note 6, See Figure 3, 4) 1.5 2.5 µs Symbol Parameter Test Conditions Value Unit Min. Typ. Max. VT+ Positive Going Threshold Voltage (See Figure 6) 2.2 2.4 V VT- Negative Going Threshold Voltage TA = 25 °C (See Figure 6) 0.75 0.97 V V hys Input Hysteresis (VT+-V T-) 0.5 V VOH High Level Output Voltage I OH = -0.5mA V IH = 0.75 V 2.6 4 5 V Inputs Open 2.6 VOL Low Level Output Voltage V I=3V I OL = 10 mA 0.2 0.45 V IIH High Level Input Current V I= 25 V (See Figure 6) 3.6 8.3 mA VI= 3 V (See Figure 6) 0.43 IIL Low Level Input Current V I= -25 V (See Figure 6) -3.6 -8.3 mA VI= -3 V (See Figure 6) -0.43 IOS Short-Circuit Output Current V I=0V V O =0V (See Figure 5) -3.4 -12 mA Symbol Parameter Test Conditions Value Unit Min. Typ. Max. tPLH Propagation Delay Time Low to High Level Output R L =5K Ω C L =5 0p F (See Figure 6) 400 1000 ns tPHL Propagation Delay Time High to Low Level Output R L =5K Ω C L =5 0p F (See Figure 6) 70 150 ns tTLH Transition Time Low to High Level Output R L =5K Ω C L =5 0p F (See Figure 6) 200 525 ns tTHL Transition Time High to Low Level Output R L =5K Ω C L =5 0p F (See Figure 6) 20 60 ns

Figure 1 :Driver Test Circuit for VOH ,ISO(H) and ISO(L)

APPLICATION INFORMATION: DIODES ON POWER SUPPLY Diodes placed in series with the VDD and VSS leads protect the ST75185 in the fault condition in which the devices output are shorted to ±15V and the power supplies are at low state and provide low-impedance path to ground (see Figure below).

DIM. mm. inch A 2.65 0.104 a1 0.1 0.2 0.004 0.008 a2 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 12.60 13.00 0.496 0.512 E 10.00 10.65 0.393 0.419 e 1.27 0.050 e3 11.43 0.450 F 7.40 7.60 0.291 0.300 L 0.50 1.27 0.020 0.050 M 0.75 0.029 S ˚ (max.) SO-20 MECHANICAL DATA PO13L

DIM. mm. inch A 2 0.079 A1 0.05 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 SSOP20 MECHANICAL DATA c Eb A2A D PIN 1 IDENTIFICATION A1 LKe 0061436C

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 K0 ˚ 8 ˚0 ˚ 8 ˚ TSSOP20 MECHANICAL DATA c Eb A2A D PIN 1 IDENTIFICATION A1 LKe 0087225C

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 0.425 0.433 Bo 13.2 13.4 0.520 0.528 Ko 3.1 3.3 0.122 0.130 Po 3.9 4.1 0.153 0.161 P 11.9 12.1 0.468 0.476 Tape & Reel SO-20 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 7.7 7.9 0.303 0.311 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 SSOP20 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 6.9 7.1 0.272 0.280 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 TSSOP20 MECHANICAL DATA

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