75185

75185 UTC | Alldatasheet

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UTC 75185 LINEAR INTEGRATED CIRCUIT UTC UNISONIC TECHNOLOGIES CO., LTD. 1 QW-R113-003,B MULTIPLE RS-232 DRIVERS AND RECEIVERS

DESCRIPTION

The UTC 75185 complies with the requirements of the TIA/EIA232-F and ITU (formerly CCITT) v.28 standards. These standards are for data interchange between a host computer and peripheral at signaling rates up to 20kbit/s. The switching speeds of the UTC 75185 are fast enough to support rates up to 120kbite/s with lower capacitive loads (shorter cables). Interoperability at the higher signaling rates cannot be assured unless the designer has design control of the cable and the interface circuits at both ends. For interoperability at signaling rates to 120kbit/s, use of ITA/EIA-423-B (ITU v.10) and TIA/EIA-422-B (ITU v.11) standards are recommended. The UTC 75185 is Characterized for operation over the temperature range of 0°C to 70°C.

FEATURES

*Single chip with easy interface between UART and Serial-Port connector of IBM TM, PC/AT TM and Compatibles. *Three drivers and five receivers meet or exceed the requirements of TIA/EIA-232-F and ITU v.28 standards. *Designed to support data rates up to 120 kbps *ESD protection meets or exceeds 10 kV on RS-232 pins and 5 kV on all other pins (Human-Body Model) SOP-20 DIP-20 TSSOP-20

UTC 75185 LINEAR INTEGRATED CIRCUIT UTC UNISONIC TECHNOLOGIES CO., LTD. 2 QW-R113-003,B PIN CONFIGURATIONS PIN DESCRIPTION PIN NO SYMBOL NAME AND FUNCTION

1 V DD Supply Voltage

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

10 V SS Supply Voltage

11 GND Ground

12 RY5 Fifth Receiver Output

13 DA3 Third Driver Input

14 RY4 Fourth Receiver Output

15 DA2 Second Driver Input

16 DA1 First Driver Input

17 RY3 Third Receiver Output

18 RY2 Second Receiver Output

19 RY1 First Receiver Output

20 V CC Supply Voltage

UTC 75185 LINEAR INTEGRATED CIRCUIT UTC UNISONIC TECHNOLOGIES CO., LTD. 3 QW-R113-003,B LOGIC SYMBOL AND LOGIC DIAGRAM This symbol is in accordance with ANSI/IEEE std 91-1984 and IEC Publication 617-12 CIRCUIT OF DRIVERS (Resistor value shown are nominal.)

UTC 75185 LINEAR INTEGRATED CIRCUIT UTC UNISONIC TECHNOLOGIES CO., LTD. 4 QW-R113-003,B CIRCUIT OF EACH RECEIVER (Resistor value shown are nominal.)

UTC 75185 LINEAR INTEGRATED CIRCUIT UTC UNISONIC TECHNOLOGIES CO., LTD. 5 QW-R113-003,B ABSOLUTE MAXIMUM RATINGS OVER OPERATING FREE-AIR TEMPERATURE RANGE (unless otherwise specified) PARAMETER SYMBOL VALUE UNIT Supply voltage (Note 1) V DD 15 V Supply voltage (Note 1) Vss -15 V Supply voltage (Note 1) Vcc 10 V Input voltage range (DRIVER) V I -15 to 7 V Input voltage range (RECEIVER) V I -30 to 30 V Driver output voltage range Vo -15 to 15 V Receiver low level output current Io 20 mA Thermal impedance (note 2) SOP-20 DIP-20 θJA °C/W Electrostatic discharge Human-body model: RS-232 pins, class 3, A (note 3) Human-body model: All pins, class 3, A (note 4) Machine model: RS-232 pins, class 3, B(note 5) Machine model: All pins, class 3, B (note 4) 600 300 kV kV V V Storage temperature range Tstg -65 to +150 °C Lead temperature 1.6mm from case for 10 sec T L 260 °C Note 1: All voltage are with respect to the network ground terminal. Note 2: The package thermal impedance is calculated in accordance with JESD 51, except for through-hole packages, which use a trace length of zero. Note 3: RS-232 pins are tested with respect to ground and each other. Note 4: Per MIL-PRF-38535. Note 5: RS-232 pins are tested with respect to ground. RECOMMENDED OPERATING CONDITIONS PARAMETER SYMBOL MIN TYP MAX UNIT Supply voltage V DD 7.5 9 15 V Supply voltage V SS -7.5 -9 -15 V Supply voltage V CC 4.5 5 5.5 V High level input voltage (driver only) V IH 1.9 V Low level input voltage (driver only) V IL 0.8 V High level output current DRIVER RECEIVER IOH -6.0 -0.5 mA Low level output current DRIVER RECEIVER I OL mA Operating free-air temperature T A 0 70 °C

UTC 75185 LINEAR INTEGRATED CIRCUIT UTC UNISONIC TECHNOLOGIES CO., LTD. 6 QW-R113-003,B SUPPLY CURRENTS TEST CONDITIONS PARAMETER SYMBOL V DD Vss MIN MAX UNIT 9 -9 15 12 -12 19 mA No load. All inputs at 1.9V 15 -15 25 9 -9 4.5 12 -12 5.5 Supply current from VDD IDD No load. All inputs at 0.8V 15 -15 9 mA 9 -9 -15 12 -12 -19 No load. All inputs at 1.9V 15 -15 -25 mA 9 -9 -3.2 12 -12 -3.2 Supply current from Vss Iss No load. All inputs at 0.8V 15 -15 -3.2 mA Supply current from Vcc Icc No load. All inputs at 5V, Vcc=5V 30 mA DRIVER ELECTRICAL CHARACTERISTICS OVER RECOMMENDED OPERATING FREE-AIR TEMPERATURE RANGE (VDD=9V, Vss=-9V, Vcc=5V, unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT High level output voltage V OH V IL=0.8V, RL=3 kΩ (Figure 1) 6 7.5 V Low level output voltage (note 6) V OL V IH=1.9V, RL=3 kΩ (Figure -7.5 -6 V High level input current I IH V I=5V (Figure 2) 10 µA Low level input current I IL V I=0V (Figure 2) -1.6 mA High level short circuit output current (note 7) IOS(H) V IL=0.8V, VO=0V(Figure 1) -4.5 -12 -19.5 mA Low level short circuit output current I OS(L) V IH=2V, Vo=0V(Figure 1) 4.5 12 19.5 mA Output resistance (note 8) r O V DD=Vss=Vcc=0V Vo=-2 to 2V 300 Ω Note 6: The algebraic convention, where the more positive (less negative) limit is 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 7: Output short circuit conditions must maintain the total power dissipation below absolute maximum ratings. Note 8: Test conditions are those specified by TIA/EIA232-F and as listed above. DRIVER SWITCHING CHARACTERISTICS (VDD=12V, Vss=-12V, Vcc=5V, TA=25°C) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Propagation delay time, low to high level output tPLH RL=3 to 7 kΩ, CL=15pF (Figure 3) 315 500 ns Propagation delay time, high to low level output tPHL RL=3 to 7 kΩ, CL=15pF (Figure 3) 75 175 ns RL=3 to 7 kΩ, CL=15pF (Figure 3) 60 100 ns Transition time, low to high level output tTLH RL=3 to 7 kΩ, CL=2500pF (Note 9,Figure 3) 1.7 2.5 µs

UTC 75185 LINEAR INTEGRATED CIRCUIT UTC UNISONIC TECHNOLOGIES CO., LTD. 7 QW-R113-003,B PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT RL=3 to 7 kΩ, CL=15pF (Figure 3) 40 75 ns Transition time high to low level output tTHL RL=3 to 7 kΩ, CL=2500pF (Note 10, Figure 3) 1.5 2.5 µs Note 9: Measured between -3V and 3V points of the output waveform (TIA/EIA-232-F conditions), all unused inputs are tied. Note 10: Measured between 3V and -3V points of the output waveform (TIA/EIA-232-F conditions), all unused inputs are tied. RECEIVER ELECTRICAL CHARACTERISTICS OVER RECOMMENDED OPERATING CONDITIONS (TA=25°C, Vcc=5V, VDD=9V, Vss=-9V) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Positive going threshold voltage VT+ (Figure 5) T A=25°C T A=0°C to 70°C 1.75 1.55 1.9 2.3 2.3 V Negative going threshold voltage V T- 0.75 0.97 1.25 V Input hysteresis(VT+ - VT-) Vhys 0.5 V VIH=0.75V 2.6 4 5 High level output voltage VOH IoH=-0.5mA Inputs Open 2.6 V Low level output voltage V OL V I=3V, IOL=10mA 0.2 0.45 V VI=25V (Figure 5) 3.6 8.3 High level input current IIH VI=3V (Figure 5) 0.43 mA VI=-25V (Figure 5) -3.6 -8.3 Low level input current IIL VI=-3V (Figure 5) -0.43 mA Short-circuit output current Ios (Figure 4) -3.4 -12 mA RECEIVER SWITCHING CHARACTERISTICS (VDD=12V, Vss=-12V, Vcc=5V, TA=25°C) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Propagation delay time, low to high level output tPLH 107 500 ns Propagation delay time, high to low level output tPHL 42 150 ns Transition time low to high level output t TLH 175 525 ns Transition time high to low level output t THL RL=5 kΩ, CL=50pF (Figure 6) 16 60 ns

UTC 75185 LINEAR INTEGRATED CIRCUIT UTC UNISONIC TECHNOLOGIES CO., LTD. 10 QW-R113-003,A TYPICAL CHARACTERISTICS (DRIVER)

UTC 75185 LINEAR INTEGRATED CIRCUIT UTC UNISONIC TECHNOLOGIES CO., LTD. 11 QW-R113-003,A TYPICAL CHARACTERISTICS (RECEIVER)

UTC 75185 LINEAR INTEGRATED CIRCUIT UTC UNISONIC TECHNOLOGIES CO., LTD. 13 QW-R113-003,A UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.