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UNISONIC TECHNOLOGIES CO., LTD 75232
MULTIPLE RS-232 DRIVERS AND RECEIVERS
DESCRIPTION
The UTC 75232 is a monolithic IC containing three independent drivers and five receivers which comply with the requirements of the TIA/EIA232-F standards.
LINEAR INTEGRATED CIRCUIT
FEATURES
* Single chip with easy interconnection of the UART and serial-port connector of personal computer. * Meets standard TIA/EIA-232-F and ITU V.28 * Up to 120 kbps data rate * 20-pin SOP/ DIP/SSOP/TSSOP packages
*Pb-free plating product number: 75232L
ORDERING INFORMATION
Ordering Number Normal Lead Free Plating 75232-D20-T 75232L-D20-T 75232-P20-R 75232L-P20-R 75232-P20-T 75232L-P20-T 75232-R20-R 75232L-R20-R 75232-R20-T 75232L-R20-T 75232-S20-R 75232L-S20-R 75232-S20-T 75232L-S20-T Package DIP-20 TSSOP-20 TSSOP-20 SSOP-20 SSOP-20 SOP-20 SOP-20 Packing Tube Tape Reel Tube Tape Reel Tube Tape Reel Tube
75232L-D20-T (1)Packing Type (2)Package Type (3)Lead Plating
(1) R: Tape Reel, T: Tube (2) D20: DIP-20, S20: SOP-20, R20: SSOP-20, P20: TSSOP-20 (3) L: Lead Free Plating, Blank: Pb/Sn
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PIN CONFIGURATION
VDD RA1 RA2 RA3 DY1 DY2 RA4 DY3 RA5 VSS
1 2 3 4 5 6 7 8 9 10
LINEAR INTEGRATED CIRCUIT
20 19 18 17 16 15 14 13 12 11
VCC RY1 RY2 RY3 DA1 DA2 RY4 DA3 RY5 GND
PIN DESCRIPTION
PIN NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 PIN NAME VDD RA1 RA2 RA3 DY1 DY2 RA4 DY3 RA5 VSS GND RY5 DA3 RY4 DA2 DA1 RY3 RY2 RY1 VCC FUNCTION Supply Voltage 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 Ground Fifth Receiver Output Third Driver Input Fourth Receiver Output Second Driver Input First Driver Input Third Receiver Output Second Receiver Output First Receiver Output Supply Voltage
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ABSOLUTE MAXIMUM RATINGS
PARAMETER SYMBOL VDD VSS VCC
LINEAR INTEGRATED CIRCUIT
RATINGS 15 -15 10 -15 ~ 7 -30 ~ 30 -15 ~ 15
UNIT V Supply Voltage (Note 2) V V Driver V Input Voltage Range VIN Receiver V Driver Output Voltage Range VOUT V Receiver Low Level Output Current IOUT 20 mA Operation Temperature TOPR 0 ~ +70 C Storage Temperature TSTG -40 ~ +150 C Note: 1.Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. 2. All voltages are with respect to the network ground terminal.
THERMAL DATA
PARAMETER DIP-20 Thermal Resistance Junction- Ambient SOP-20 SSOP-20 TSSOP-20 JA SYMBOL RATINGS 70 100 115 115 UNIT C/W
RECOMMENDED OPERATING RATINGS
PARAMETER Supply Voltage Level Input Voltage (driver only) High Level Output Current Low Level Output Current Operating Free-air Temperature High Low Driver Receiver Driver Receiver SYMBOL VDD VSS VCC VIH VIL IOH IOL TOPR 0 MIN 7.5 -7.5 4.5 1.9 TYP 9 -9 5 MAX 15 -15 5.5 0.8 -6.0 -0.5 6 16 70 UNIT V V V V V mA mA C
E LECTRICAL CHARACTERISTICS
(Over recommended supply voltage and operating temperature ranges, unless otherwise specified) PARAMETER SUPPLY CURRENTS SYMBOL TEST CONDITIONS VDD =9V, VSS =-9V No load. VDD =12, VSS =-12V All inputs at 1.9V VDD =15, VSS =-15V VDD =9V, VSS =-9V No load. VDD =12, VSS =-12V All inputs at 0.8V VDD =15, VSS =-15V VDD =9V, VSS =-9V No load. VDD =12, VSS =-12V All inputs at 1.9V VDD =15, VSS =-15V VDD =9V, VSS =-9V No load. VDD =12, VSS =-12V All inputs at 0.8V VDD =15, VSS =-15V No load. All inputs at 5V, VCC=5V MIN TYP MAX 15 19 25 4.5 5.5 9 -15 -19 -25 -3.2 -3.2 -3.2 30 UNIT mA
Supply Current from VDD
IDD
mA
mA
Supply Current from VSS
ISS
mA mA
Supply Current from VCC
ICC
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ELECTRICAL CHARACTERISTICS(Cont.)
LINEAR INTEGRATED CIRCUIT
DRIVER SECTION (VDD=9V, VSS=-9V, VCC=5V) Output Voltage Level High VOH VIL=0.8V, RL=3 k 6 7.5 V (Figure. 1) Low VOL VIH=1.9V, RL=3 k (Note 1) -7.5 -6 V Input Current Level High IIH VIN=5V 10 A (Figure. 2) Low IIL VIN=0V -1.6 mA Short Circuit Output Current High IOS(H) VIL=0.8V, VOUT=0V (Note 2) -8.5 -12 -19.5 mA (Figure. 1) Low IOS(L) VIH=2.0V, VOUT=0V 8.5 12 19.5 mA Output Resistance (Note 3) ROUT VDD=VSS=VCC=0V, VOUT=-2V~2V 300 RECEIVER SECTION (VDD=9V, VSS=-9V, VCC=5V) Ta=25C (Figure. 5) 1.75 1.9 2.3 Positive VT+ V Going Threshold Voltage Ta=0C ~ 70C (Figure. 5) 1.55 2.3 Negative VT0.75 0.97 1.25 V Input Hysteresis(VT+ - VT-) VHYS 0.5 V VIH=0.75V 2.6 4 5 High VOH IOH=-0.5mA V Output Voltage Level Inputs Open 2.6 Low VOL VIN=3V, IOL=10mA 0.2 0.45 V VIN=25V 3.6 8.3 High IIH mA Input Current Level VIN=3V 0.43 (Figure. 5) VIN=-25V -3.6 -8.3 Low IIL mA -0.43 VIN=-3V Short-Circuit Output Current IOS (Fig. 4) -3.4 -12 mA Note. 1. For voltage logic levels, the more positive (less negative) limit is designated as maximum, (e.g. if -10V is a maximum, the typical value is a more negative voltage). 2: Output short circuit conditions must maintain the total power dissipation below absolute maximum ratings and the sign is used to indicate direction. 3: Test conditions are those specified by TIA/EIA232-F and as listed above.
SWITCHING CHARACTERISTICS (Ta=25C)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX DRIVER SECTION (VDD=12V, VSS=-12V, VCC=5V) Low to High tPLH 315 500 RL=3 ~ 7 k, CL=15pF Propagation Delay Time (Figure. 3) 75 175 High to low tPHL Low to High tTLH 60 100 RL=3 ~ 7 k, CL=15pF High to Low tTHL 40 75 Transition Time RL=3 ~ 7 k, CL=2500pF Low to High tTLH 1.7 2.5 (Figure. 3, Note) High to Low tTHL 1.5 2.5 RECEIVER SECTION (VDD=12V, VSS=-12V, VCC=5V) Low to High tPLH 107 250 RL=5 k, CL=50pF High to low tPHL 42 150 Propagation Delay Time (Figure. 6) Low to High tPLH 100 160 RL=1.5 k, CL=15pF High to Low tPHL 60 100 Low to High tTLH 175 350 RL=5 k, CL=50pF 16 60 High to Low tTHL Transition Time (Figure. 6) Low to High tTLH 90 175 RL=1.5 k, CL=15pF High to Low tTHL 15 50 Note: Measured points of the output waveform (TIA/EIA-232-F conditions) as below, all unused inputs are tied. - Low to High level: between -3V and 3V. - High to Low level: between 3V and -3V. UNIT ns ns ns ns s s ns ns ns ns ns ns ns ns
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PARAMETER MEASUREMENT INFORMATION DRIVER TEST CIRCUITS:
LINEAR INTEGRATED CIRCUIT
IIH VIN -IIL VIN
VDD VCC
VSS
Figure. 1 For VOH, VOL, IOS(H), IOS(L)
Figure. 2 For IIH, IIL
DRIVER VOLTAGE WAVEFORMS:
Figure. 3
Note: 1. The pulse generator characteristics: tW=25s, PRR=20kHz, ZO=50, tR=tF<50ns. 2. CL includes probe and jig capacitance.
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RECEIVER TEST CIRCUITS:
LINEAR INTEGRATED CIRCUIT
PARAMETER MEASUREMENT INFORMATION (Cont.)
VDD VCC VIN VSS
Figure. 4. IOS
Figure. 5 VT, VOH, VOL
RECEIVER PROPAGATION AND TRANSITION TIMES:
Figure. 6.
Note: 1. The pulse generator characteristics: tW=25s, PRR=20kHz, ZO=50, tR=tF<50ns. 2. CL includes probe and jig capacitance.
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APPLICATION INFORMATION
LINEAR INTEGRATED CIRCUIT
Power-Supply protection to meet Power-Off fault conditions of TIA/EIA-232-F
Diodes placed in series with the VDD and VSS leads protect the device in the fault condition in which the device outputs are shorted to 15V and the power supplies are at low and provide low-impedance paths to ground. VDD VDD
UTC 75232
15V
UTC 75232
Output
VSS VSS
Typical Connection
"*": Refer Figure 10 to select the correct values for the loading capacitors (C1, C2, and C3), which are required to meet the RS-232 maximum slew-rate requirement of 30V/s. The value of the loading capacitors required depends upon the line length and desired slew rate, but typically is 330 pF.
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LOGIC SYMBOL AND LOGIC DIAGRAM
LINEAR INTEGRATED CIRCUIT
RA1 RA2 RA3 DY1 DY2 RA4 DY3 RA5
RY1 RY2 RY3 DA1 DA2 RY4 DA3 RY5
CIRCUIT OF DRIVERS (Resistor value shown are nominal.)
To Other Drivers VDD 11.6k Input DAx 75.8 4.2k 320 9.4k
DYx Output
GND To Other Drivers VSS To Other Drivers
10.4k
3.3k
68.5
CIRCUIT OF EACH RECEIVER (Resistor value shown are nominal.)
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TYPICAL CHARACTERISTICS(DRIVER)
LINEAR INTEGRATED CIRCUIT
Short-Circuit Output Current, IOS (mA)
12 9 6 3 0 -3 -6 -9 -12
Figure 9 Short-Circuit Output Current vs Free-Air Temperature
IOS(L) (VIN=1.9V)
VDD = 9V VSS = -9V VO = 0 IOS(H) (VIN=0.8V)
SR- Slow (V/s)
Output Current, IOUT (mA) Figure 10 Slow Rate vs Load Capacitance 1000 VDD = 9V VSS = -9V RL = 3k TA = 25 100 10 VOH (VIN=0.8V) 1 10 1000 100 Load Capacitance, CL (pF) 10000
Output Voltage, VOUT (V)
3k Load Line
0
10 20 30 40 50 60 70 Free-Air Temperature, TA ()
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TYPICAL CHARACTERISTICS(RECEIVER)
Figure 11 Input Threshold Voltage vs Free-Air Temperature 2.4 Input Threshold Voltage (V) 2 1.8 1.6 1.4 1.2 1 0.8 0.6 0.4 0 10 20 30 40 50 60 70 Free-Air Temperature, TA () VDD = 9V VSS = -9V VO = 0 VT+ Input Threshold Voltage (V) 2.2
LINEAR INTEGRATED CIRCUIT
Figure 12 Input Threshold Voltage vs Supply Voltage 2 1.8 1.6 1.4 1.2 1 0.8 0.6 0.4 0.2 0 2 3 5 4 6 7 8 9 Supply Voltage, VCC (V) 10 VTVT+
VT-
Figure 13 Noise Rejection 6 5 4 3 2 1 0 10 CC=12pF CC=100pF
VCC = 5V TA = 25 See Note A
Figure 14 Maximum Supply Voltage vs Free-Air Temperature 16 14 12 10
CC=300pF CC=500pF
8 6 4 2
RL 3k(from each output to GND)
40 100 400 1000 400010000 Pulse Duration, tw (ns)
0
0
10 20 30 40 50 60 Free-Air Temperature, TA ()
70
The maximum amplitude staring from 0V of a positive-going pulse that will not cause a change in the output level.
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.
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