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Details, datasheet, quote on part number:ICL232IBE
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ICL232
+5V Powered, Dual RS-232 Transmitter/Receiver
Description
The ICL232 is a dual RS-232 transmitter/receiver interface circuit that meets all ElA RS-232C and V.28 specifications. It requires a single +5V power supply, and features two onboard charge pump voltage converters which generate +10V and -10V supplies from the 5V supply. The drivers feature true TTL/CMOS input compatibility, slewrate-lim ited output, and 300 power-off source impedance. The receivers can handle up to +30V, and have a 3k to 7k input impedance. The receivers also have hysteresis to improve noise rejection.
June 2001
Features
· Meets All RS-232C and V.28 Specifications · Requires Only Single +5V Power Supply · Onboard Voltage Doubler/Inverter · Low Power Consumption · 2 Drivers - ±9V Output Swing for +5V lnput - 300 Power-off Source Impedance - Output Current Limiting - TTL/CMOS Compatible - 30V/µs Maximum Slew Rate · 2 Receivers - ±30V Input Voltage Range - 3k to 7k Input Impedance - 0.5V Hysteresis to Improve Noise Rejection · All Critical Parameters are Guaranteed Over the Entire Commercial, Industrial and Military Temperature Ranges
Ordering Information
PART NUMBER ICL232CPE ICL232CBE ICL232lPE ICL232lBE ICL232MJE TEMP. RANGE ( oC) 0 to 70 0 to 70 -40 to 85 -40 to 85 -55 to 125 PACKAGE 16 Ld PDIP 16 Ld SOIC 16 Ld PDIP 16 Ld SOIC 16 Ld CERDIP PKG. NO. E16.3 M16.3 E16.3 M16.3 F16.3
Applications
· Any System Requiring RS-232 Communications Port - Computer - Portable and Mainframe - Peripheral - Printers and Terminals - Portable Instrumentation - M o d e ms · Dataloggers
Pinout
ICL232 (PDIP, CERDIP, SOIC) TOP VIEW
C1+ V+ 1 2 16 VCC 15 GND 14 T1OUT 13 R1IN 12 R1OUT 11 T1IN 10 T2IN 9 R2OUT
Functional Diagram
+5V + 1 .0µF 1 1µF + 3 4 1µF + 5 C1+ C1C2+ C216 + 1µF
V CC 2 +5V TO 10V VOLTAGE INVERTER V+ +10V TO -10V 6 VOLTAGE INVERTER VT1 T2
C1 - 3 C2+ 4
C2 - 5 V- 6 T2 OUT 7 R2IN 8
T1IN T2IN R1OUT
11 10 12
+5 V 400 k +5 V 400 k
+ 14
1µF T1OUT T2OUT R1 I N
7 13
R1 R2OUT 9 R2 15
5k 8 5k
R2 I N
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright © Intersil Americas Inc. 2002. All Rights Reserved 1
File Number
3020.6
ICL232
Absolute Maximum Ratings
VCC to Ground . . . . . . . . . . . . . . . . . . . . . .(GND -0.3V) < VCC < 6V V+ to Ground . . . . . . . . . . . . . . . . . . . . . . . (VCC -0.3V) < V+ < 12V V- to Ground . . . . . . . . . . . . . . . . . . . . . . . -12V < V- < (GND +0.3V) Input Voltages T1IN , T2IN . . . . . . . . . . . . . . . . . . . . (V- -0.3V) < VIN < (V+ +0.3V) R1IN , R2IN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±30V Output Voltages T1OUT , T2OUT . . . . . . . . . . . . (V- -0.3V) < VTXOUT < (V+ +0.3V) R1OUT , R2OUT . . . . . . . . .(GND -0.3V) < VRXOUT < (VCC +0.3V) Short Circuit Duration T1OUT , T2OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous R1OUT , R2OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous
Thermal Information
Thermal Resistance (Typical, Note 1) JA ( oC/W) JC (oC/W) CERD IP Package . . . . . . . . . . . . . . . . 80 18 PDIP Package . . . . . . . . . . . . . . . . . . . 100 N/A SOIC Package. . . . . . . . . . . . . . . . . . . 100 N/A Maximum Junction Temperature Plastic Packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150oC Ceramic Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175oC Maximum Storage Temperature Range . . . . . . . . . . - 65oC to 150oC Maximum Lead Temperature (Soldering 10s). . . . . . . . . . . . . 300oC
Operating Conditions
Temper ature Ranges ICL232C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0oC to 70oC ICL232I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40oC to 85oC ICL232M . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55oC to 125oC
CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTE: 1. JA is measured with the component mounted on an evaluation PC board in free air.
Electrical Specifications
PARAMETER
Test Conditions: VCC = +5V ±10%, TA = Operating Temperature Range. Test Circuit as in Figure 8 Unless Otherwise Specified TEST CONDITIONS T1OUT and T2OUT Loaded with 3k to Ground Outputs Unloaded, TA = 25oC MIN ±5 2.0 T1IN , T2IN = 0V - 30 VIN = ±3V VCC = 5V, TA = 25oC VCC = 5V, TA = 25oC 3.0 0.8 0.2 IOUT = 3.2mA IOUT = -1.0mA RS-232 to TTL CL = 10pF, RL = 3k, TA = 25oC (Notes 2, 3) RL = 3k, CL = 2500pF Measured from +3V to -3V or -3V to +3V VCC = V+ = V- = 0V, VOUT = ±2V T1OUT or T2OUT Shorted to GND 3.5 300 TYP ±9 5 15 5.0 1.2 1.7 0.5 0.1 4.6 0.5 3 ± 10 M AX ±10 10 0.8 200 +30 7.0 2.4 1.0 0.4 30 UNITS V mA V V µA V k V V V V V µs V/µs V/µs mA
Transmitter Output Voltage Swing, TOUT Power Supply Current, ICC TIN , Input Logic Low, VlL TIN , Input Logic High, VlH Logic Pullup Current, IP RS -232 Input Voltage Range, VIN Receiver Input Impedance, RIN Receiver Input Low Threshold, VlN (H-L) Receiver Input High Threshold, VIN (L-H) Receiver Input Hysteresis, VHYST TTL/CMOS Receiver Output Voltage Low, VOL TTL/CMOS Receiver Output Voltage High, VOH P ropagation Delay, tPD Instantaneous Slew Rate, SR Transition Region Slew Rate, SRT Output Resistance, ROUT RS -232 Output Short Circuit Current, ISC NOTES : 2. Guaranteed by design. 3. See Figure 4 for definition.
2
ICL232 Test Circuits
+4.5 V TO +5.5 V INPUT 1 2 3 1µF + C2 4 5 C1+ V+ C1C2+ C2VT2OUT R2IN VCC 16 GND 15 T1OUT 14 R1IN 13 R1OUT 12 T1IN 11 T2IN 10 R2OUT 9 3 k T1 OUTPUT RS-232 ±30V INPUT TTL/CMOS OUTPUT TTL/CMOS INPUT TTL/CMOS INPUT TTL/CMOS OUTPUT 1 2 3 4 5 6 7 8 C1+ V+ C1C2+ C2VT2 OUT R2IN VCC 16 GND 15 T1OUT 14 R1 IN 13 R 1OUT 12 T1IN 11 T2IN 10 R 2OUT 9 T2OUT
1µF C3 1 µF C1 +
+
-
3 k T2 OUTPUT RS-232 ±30V INPUT 7 8
FIGURE 1. GENERAL TEST CIRCUIT
Typical Performance Curves
550 V+, V- SUPPLY IMPEDANCES () 500 OUTPUT VOLTAGE (|V|)
o 450 TA = 25 C EXTERNAL SUPPLY LOAD 400 1k BETWEEN V+ + GND OR V- + GND 350 TRANSMI TTER OUTPUT
300 250 200 150 3
OPEN CIRCUIT GUARANTEED OPERATING RANG E
V+ SUPPLY
FIGU RE 3. V +, V- OUTPUT IMPEDANCES vs VCC
Pin Descriptions
PDIP, CERDIP 1 2 3 4 5 6 7 8 9 10 SOIC 1 2 3 4 5 6 7 8 9 10 PIN NAME C1 + V+ C 1C2 + C 2VT2OUT R2IN R2out T2IN DESC RIPTION Exter nal capacitor "+" for internal voltage doubler. Internally generated +10V (typical) supply. Exter nal capacitor "-" for internal voltage doubler. Exter nal capacitor "+" internal voltage inverter. Exter nal capacitor "-" internal voltage inverter. Internally generated -10V (typical) supply. RS-232 Transmitter 2 output ±10V (typical). RS-232 Receiver 2 input, with internal 5K pulldown resistor to GND. Receiver 2 TTL/CMOS output. Transmitter 2 TTL/CMOS input, with internal 400K pullup resistor to V CC .
-
1 µF C4 +
6
ROUT = VIN /I VIN = ±2V A
T1OUT
FIGURE 2. POWER-OFF SOURCE RESISTANCE CONFIGURATION
10 9 V- SUPPLY 8 7 6 5 4 3 TA = 25 oC TRANSMITTER OUTPUTS OPEN CIRCUIT 0 1 2 3 4 5 6 7 8 9 10 |ILOAD| (mA) V- (VCC = 4.5V) V- (VCC = 5V)
V+ (VCC = 5V) V+ (VCC = 4.5V)
4
5
6
INPUT SUPPLY VOLTAGE VCC (V)
FIGUR E 4. V+, V- OUTPUT VOLTAGES vs LOAD CURRENT
3
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