ST75C185BDR

ST75C185 LOW POWER MULTIPLE RS-232 DRIVERS AND RECEIVERS ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ MEETS STANDARD EIA-232-E SINGLE CHIP WITH INTERFACE BETWEEN UART AND SERIAL PORT CONNECTOR LESS THAN 20mW QUIESCENT POWER CONSUMPTION WIDE DRIVER SUPPLY VOLTAGE: 7 TO 13.2V DRIVER OUTPUT SLEW RATE LIMITED TO 30V/µs MAX RECEIVER INTPUT HYSTERESIS: 1.1 TYP PUSH-PULL RECEIVER OUTPUTS ON CHIP RECEIVER 1µs NOISE FILTER FUNCTIONALLY INTERCHANGEABLE WITH STM ST75185 ESD PROTECTION: ±10KV HUMAN BODY MODEL DESCRIPTION The ST75C185 is ow power BICMOS device containing three independent drivers and five receivers that is used to interface data terminal equipment (DTE) with data circuit-terminating equipment (DCE). This device has been designed to conform to Standards ANSI/EIA-232-E. The drivers have a controlled output slew rate that is limited to a maximum of 30V/µs and the receivers have filters that reject input noise pulses that are shorter than 1µs. Both these features eliminate the need of external components. The ST75C185 hasn’t a power sequence fault condition. It has been designed using low-power techniques in a BICMOS technology. ) s ( ct SOP c u d e t le ) s t( o r P TSSOP o s b O - u d o r P e t e l o DIP In most application the receivers contained in this device will interface to single inputs peripheral devices such as ACEs, UARTs or microprocessors. By using sampling, such peripheral devices are usually insensitive to the transition times of the input signals. If this is not the case, or for other uses, it is recommended that the ST75C185 receiver outputs be buffered by single gates of the HCMOS, ALS or 74F logic families. ORDERING CODES s b O Type Temperature Range Package Comments ST75C185CN ST75C185CD ST75C185CDR ST75C185CTR ST75C185BN ST75C185BD ST75C185BDR ST75C185BTR 0 to 70 °C 0 to 70 °C 0 to 70 °C 0 to 70 °C -40 to 85 °C -40 to 85 °C -40 to 85 °C -40 to 85 °C DIP20 SO-20 (Tube) SO-20 (Tape & Reel) TSSOP20 (Tape & Reel) DIP20 SO-20 (Tube) SO-20 (Tape & Reel) TSSOP-20 (Tape & Reel) 20 parts per tube / 50 tubes per box 40 parts per tube / 25 tubes per box 1000 parts per reel 2500 parts per reel 20 parts per tube / 50 tubes per box 40 parts per tube / 25 tubes per box 1000 parts per reel 2500 parts per reel December 2002 1/16 ST75C185 PIN CONNECTION IEC LOGIC SYMBOL AND LOGIC DIAGRAM c u d PIN DESCRIPTION PlN N° SYMBOL 1 VDD Supply Voltage (+12V) 2 3 4 5 6 7 8 9 10 RA1 RA2 RA3 DY1 DY2 RA4 DY3 RA5 VSS First Receiver Input Second Receiver Input Third Receiver Input First Driver Output Second Driver Output Fourth Receiver Input Third Driver Output Fifth Receiver Input Supply Voltage (-12V) 11 12 13 14 15 16 17 18 19 20 GND RY5 DA3 RY4 DA2 DA1 RY3 RY2 RY1 VCC ) s ( ct t e l o r P e s b O 2/16 u d o o r P NAME AND FUNCTION e t le o s b O - Ground Fifth Receiver Ouput Third Driver Intput Fourth Receiver Ouput Second Driver Input First Driver Input Third Receiver Ouput Second Receiver Output First Receiver Output Supply Voltage (+5V) ) s t( ST75C185 ABSOLUTE MAXIMUM RATINGS OVER OPERATING FREE-AIR TEMPERATURE RANGE Symbol Parameter Value Unit VDD Supply Voltage (Note 1) 15 V VSS Supply Voltage (Note 1) -15 V VCC Supply Voltage (Note 1) VI Input Voltage Range (DRIVER) 7 V -0.3 to (VCC + 0.3) V VI Input Voltage Range (RECEIVER) -30 to 30 V VO Output Voltage Range (DRIVER) (VSS - 6) to (VDD + 6) V VO Output Voltage Range (RECEIVER) -0.3 to (VCC + 0.3) V IO Receiver Low Level Output Current TA Operating Free-Air Tempereature Range Tstg Storage Temperature Range TL Lead Temperature 1.6mm from case for 10 sec 20 mA -40 to 85 °C -65 to + 150 °C 260 °C 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 voltages are with respect to the network ground terminal. c u d RECOMMENDED OPERATING CONDITIONS Symbol Parameter Min VDD Supply Voltage 7 VSS Supply Voltage -7 VCC Supply Voltage DRIVER IOH High Level Output Current RECEIVER RECEIVER IOL Low Level Output Current TA Operating Free-Air Tempereature Range VI 12 e t le 4.5 Input Voltage (Note 2) so b O - o r P TYP -12 5 ) s ( ct Max 13.2 V V 5.5 V VCC -25 25 -40 25 Unit -13.2 0 RECEIVER ) s t( V -1 mA 3.2 mA 85 °C NOTE 2: The algebraic conversion, where the more positive (less negative) limits designed 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. u d o SUPPLY CURRENTS r P e Symbol t e l o IDD ISS s b O ICC Parameter Value Test Conditions Unit Min. Typ. Max. 500 µA Supply Current from VDD No load. All inputs at 2 or 0.8V 115 Supply Current from VSS No load. All inputs at 2 or 0.8V -115 -500 µA Supply Current from VCC No load. All inputs at 2 or 5V 950 1500 µA 3/16 ST75C185 DRIVER ELECTRICAL CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (VDD = 12V, VSS = -12V, VCC = 5V ± 10%, unless otherwise specified) Value Symbol Parameter Test Conditions Unit Min. High Level Output Voltage VOH Low Level Output Voltage (Note 3) VOL VIL = 0.8 V RL = 3KΩ (See Figure 1) VIH = 1.9 V RL = 3KΩ (See Figure 1) VDD = 7V, VSS = -7V 5 6.3 V 10 10.8 V VDD = 7V, VSS = -7V -6.3 -5 V VDD = 12V, VSS = -12V -10.8 -10 V High Level Input Voltage VIL Low Level Input Voltage 2 IIH High Level Input Current IIL Low Level Input Current IOS(H) High Level Short Circuit Output Current (Note 4) IOS(L) Low Level Short Circuit Output Current (Note 4) VI = 0.8 V VO = 0 V or VSS (See Figure1) VI = 2 V VO = 0 V or VSS (See Figure 1) VO = -2 to 2 V VSS = VCC = VDD = 0 V 1.4 1.4 Output Resistance Max. VDD = 12V, VSS = -12V VIH RO Typ. V 0.8 V VI = 5 V (See Figure 2) 1 µA VI = 0 V (See Figure 2) −1 µA -6 −20 −60 mA 6 35 60 mA 300 450 c u d ) s t( Ω 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: Not more than one outputs should be shorted at one time. e t le DRIVER SWITCHING CHARACTERISTICS (VDD = 12V, VSS = -12V, VCC = 5V, TA = 25 °C) Symbol tPLH so Parameter tTLH SR b O - Propagation Delay Time, Low to High RL = 3 to 7 KΩ CL = 1000 pF Level Output (See Figure 3) Propagation Delay Time, High to Low RL = 3 to 7 KΩ CL = 1000 pF Level Output (See Figure 3) Transition Time Low to High Level RL = 3 to 7 KΩ CL = 1000 pF Output (See Figure 3) Transition Time High to Low Level RL = 3 to 7 KΩ CL = 1000 pF Output (See Figure 3, 4) Output Slew Rate (Note 5) RL = 3 to 7 KΩ CL = 50 to 2500 pF (See Figure 3) t c u od tTHL t e l o r P e Value Test Conditions (s) tPHL o r P Unit Min. Typ. Max. 1.9 4 µs 1.6 4 µs 0.53 2 3.2 µs 0.53 2 3.2 µs 4 11 30 V/µs NOTE 5: Measured between -3V and 3V points of output waveform (EIA-232-E conditions), all unused inputs tied either high or low. s b O 4/16 ST75C185 RECEIVER ELECTRICAL CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (VDD = 12V, VSS = -12V, VCC = 5V ± 10%, unless otherwise specified) Value Symbol Parameter Test Conditions Unit Min. Typ. Max. 2.1 2.55 1.25 VT+ Positive Going Threshold Voltage (See Figure 6) 1.6 (See Figure 6) 0.65 1 0.6 1.1 V 3.5 4.8 V VT- Negative Going Threshold Voltage Vhys Input Hysteresis (VT+ - VT-) (Note 6) VOH High Level Output Voltage (Note 7) IOH = 0.75 mA or Input Open IOH = -1 mA (See Figure 6) VOL Low Level Output Voltage IIH High Level Input Current VI = 3 V IOL = 3.2 mA (See Figure 6) VI = 25 V (See Figure 6) VI = 3 V IIL Low Level Input Current IOS(H) Short-Circuit Output Current at High Level IOS(L) Short-Circuit Output Current at Low Level V 0.2 0.4 V 3.6 4.5 8.3 mA (See Figure 6) 0.43 0.55 1 VI = -25 V (See Figure 6) -3.6 -4.4 -8.3 VI = -3 V -0.4 -0.55 -1 -13 -30 (See Figure 6) V VI = 0.75 V VO = 0 V (See Figure 5) VI = VCC VO = VCC (See Figure 5) 35 uc d o r mA ) s t( 60 mA mA All typical values are at TA = 25°C NOTE 6: Hysteresis is the difference between the positive going input threshold voltage, VT+, and the negative going input threshold voltage VTNOTE 7: If the inputs are left unconnected, the receiver interprets this as an input low, and the receiver outputs will remain in the high state. RECEIVER SWITCHING CHARACTERISTICS (VDD = 12V, VSS = -12V, VCC = 5V ± 10% TA = 25°C) Symbol Parameter tPHL Propagation Delay Time Low to High RL = 5 KΩ CL = Level Output (See Figure 6) Propagation Delay Time High to Low RL = 5 KΩ CL = Level Output (See Figure 6) Transition Time Low to High Level RL = 5 KΩ CL = Output (See Figure 6) Transition Time High to Low Level RL = 5 KΩ CL = Output (See Figure 6) Pulse Duration of longest pulse RL = 5 KΩ CL = rejection as noise (Note 8) (See Figure 6) u d o tTLH tTHL r P e t e l o tW(N) o s b O - Value Test Conditions ) s ( ct tPLH P e let Unit Typ. Max. 50 pF 3.2 4 µs 50 pF 2.6 4 µs 50 pF 30 100 ns 50 pF 10 50 ns 2.3 4 µs 50 pF Min. 1 NOTE 8: The receiver ignores any positive or negative going pulse that is less than the minimum value of tW(N) and accepts any positive or negative going pulse greater than the maximum of tW(N). s b O 5/16 ST75C185 APPLICATION CIRCUITS c u d o s b O - Figure 1 : Driver Test Circuit for VOH, ISO(H) and ISO(L) ) s ( ct u d o r P e t e l o s b O 6/16 e t le o r P ) s t( ST75C185 Figure 2 : Driver Test Circuit for IIH and IIL Figure 3 : Driver Test Circuit c u d e t le ) s ( ct ) s t( o r P o s b O - Figure 4 : Driver Voltage Waveforms u d o r P e t e l o s b O 7/16 ST75C185 Figure 5 : Receiver Test Circuit for IOS Figure 6 : Receiver Test Circuit for VT, VOH, VOL c u d e t le Figure 7 : Receiver Test Circuit u d o ) s ( ct r P e t e l o s b O 8/16 o s b O - o r P ) s t( ST75C185 Figure 8 : Receiver Voltage Waveforms NOTE A: The pulse generator has the following characteristics: tW = 25µs, PRR = 20KHz, ZO = 50 Ω, tr = tf < 50ns NOTE B: CL includes probe and jig capacitance. Figure 9 : Driver Voltage Transfer Characteristics c u d Figure 11 : Driver Short Circuit Output Current vs Free-Air Temperature e t le ) s ( ct u d o r P e Figure 10 : Driver Output Current vs Output Voltage ) s t( o r P o s b O - Figure 12 : Device Supply Current vs Temperature t e l o s b O 9/16 ST75C185 Figure 13 : Receiver Threshold vs Temperature Figure 14 : Receiver Threshold vs Supply Voltage ) s t( 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). c u d e t le ) s ( ct u d o r P e t e l o s b O 10/16 o s b O - o r P ST75C185 Plastic DIP-20 (0.25) MECHANICAL DATA mm. inch DIM. MIN. a1 0.254 B 1.39 TYP MAX. MIN. TYP. MAX. 0.010 1.65 0.055 0.065 b 0.45 0.018 b1 0.25 0.010 D 25.4 1.000 E 8.5 0.335 e 2.54 0.100 e3 22.86 0.900 F 7.1 I 3.93 L c u d e t le 3.3 Z 1.34 ) s ( ct o s b O - o r P ) s t( 0.280 0.155 0.130 0.053 u d o r P e t e l o s b O P001J 11/16 ST75C185 SO-20 MECHANICAL DATA mm. inch DIM. MIN. TYP A MAX. MIN. TYP. a1 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 12.60 13.00 0.496 E 10.00 10.65 0.393 0.512 c u d e 1.27 0.050 e3 11.43 0.450 F 7.40 7.60 L 0.50 1.27 M P e let 0.75 S 8˚ (max.) ) s ( ct ro 0.291 0.020 ) s t( 0.419 0.300 0.050 0.029 o s b O - u d o r P e t e l o s b O PO13L 12/16 ST75C185 TSSOP20 MECHANICAL DATA mm. inch DIM. MIN. TYP MAX. A 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 6.4 6.5 6.6 0.252 0.256 E 6.2 6.4 6.6 0.244 0.252 E1 4.3 4.4 4.48 0.169 0.173 1 e c u d 0.65 BSC 0˚ L 0.45 0.60 A1 ) s ( ct e t le 8˚ A2 b o r P e t e l o s b O du o r P 0.260 0.176 0.0256 BSC K A ) s t( 0.260 0.75 e o s b O - 0˚ 0.018 K 8˚ 0.024 0.030 L E c D E1 PIN 1 IDENTIFICATION 1 0087225C 13/16 ST75C185 Tape & Reel SO-20 MECHANICAL DATA mm. inch DIM. MIN. TYP A MAX. MIN. TYP. 330 13.2 12.992 C 12.8 D 20.2 0.795 N 60 2.362 T 0.504 0.519 30.4 1.197 Ao 10.8 11 0.425 0.433 Bo 13.2 13.4 0.520 Ko 3.1 3.3 0.122 Po 3.9 4.1 0.153 ) s t( P 11.9 12.1 0.468 0.528 ) s ( ct u d o r P e t e l o s b O o s b O - c u d ro P e let 14/16 MAX. 0.130 0.161 0.476 ST75C185 Tape & Reel TSSOP20 MECHANICAL DATA mm. inch DIM. MIN. TYP A MAX. MIN. TYP. 330 13.2 12.992 C 12.8 D 20.2 0.795 N 60 2.362 T MAX. 0.504 0.519 22.4 0.882 Ao 6.8 7 0.268 0.276 Bo 6.9 7.1 0.272 Ko 1.7 1.9 0.067 Po 3.9 4.1 0.153 ) s t( P 11.9 12.1 0.468 0.280 P e let ro ) s ( ct c u d 0.075 0.161 0.476 o s b O - u d o r P e t e l o s b O 15/16 ST75C185 c u d e t le ) s ( ct ) s t( o r P o s b O - u d o r P e t e l o s b O 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. 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