ISL83387 INTERSIL [Intersil Corporation], ISL83387 Datasheet
ISL83387
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ISL83387 Summary of contents
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... Data Sheet +/-15kV ESD Protected, +3V to +5.5V, 1Microamp, 250kbps, RS-232 Transceivers with Enhanced Automatic Powerdown and a Separate Logic Supply The Intersil ISL83387E is a 3.0V to 5.5V powered RS-232 transceiver which meets ElA/TIA-232 and V.28/V.24 specifications, even 3.0V. Additionally, it provides CC 15kV ESD protection (IEC61000-4-2 Air Gap and Human ± ...
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... Active high input to override automatic powerdown circuitry thereby keeping transmitters active. (FORCEOFF must be high). The switching point is a function of the V 2 ISL83387E TABLE 1. SUMMARY OF FEATURES Rx. ENABLE V LOGIC L FUNCTION? SUPPLY PIN? 250 NO YES ISL83387E (TSSOP) TOP VIEW C1 C1 C2+ 4 ...
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... Typical Operating Circuit TTL/CMOS LOGIC LEVELS LOGIC V CONTROL LOGIC 3 ISL83387E +3.3V + 0.1µ C1 0.1µ C2+ + 0.1µ C2 OUT 5kΩ OUT 5kΩ OUT 5kΩ ...
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... Ld TSSOP Package . . . . . . . . . . . . . . . . . . . . . . Moisture Sensitivity (see Technical Brief TB363) TSSOP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Level 1 Maximum Junction Temperature (Plastic Package 150 Maximum Storage Temperature Range . . . . . . . . . . -65 Maximum Lead Temperature (Soldering 10s 300 (Lead Tips Only) Operating Conditions +0.3V) L Temperature Range ISL83387EIV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 5.5V 0.1µ ...
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... Measured From 3V to - ESD PERFORMANCE RS-232 Pins ( Human Body Model OUT IN IEC61000-4-2 Air Gap Discharge IEC61000-4-2 Contact Discharge NOTE “edge” is defined as a transition through the transmitter or receiver input thresholds. 5 ISL83387E = 3V to 5.5V 0.1µ 3.3V (Continued ...
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... Detailed Description The ISL83387E operates from a single +3V to +5.5V supply, guarantees a 250kbps minimum data rate, requires only four small external 0.1µF capacitors, features low power consumption, and meets all ElA RS-232C and V.28 specifications. The circuit is divided into three sections: The charge pump, the transmitters, and the receivers. ...
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... V ) that sets V CC Connecting V prevents the ISL83387E outputs from forward biasing the input diodes of a logic device powered by that lower supply. Connecting V that the receiver and INVALID output levels are compatible even with the CMOS input V devices ...
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... As stated previously, the INVALID output switches low whenever invalid levels have persisted on all of the receiver inputs for more than 30µs (see Figure 7), but this has no direct effect on the state of the ISL83387E (see the next sections for methods of utilizing INVALID to power down the device). ...
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... FIGURE 7. ENHANCED AUTOMATIC POWERDOWN AND INVALID TIMING DIAGRAMS RS-232 level, forcing the ISL83387E to power on. See the “INVALID DRIVING FORCEON AND FORCEOFF” section of Table 2 for an operational summary. This operational mode is perfect for handheld devices that communicate with another computer via a detachable cable. Detaching the ...
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... IH CD4000. The ISL83387E V 1000pF connecting V the logic device, the ISL83387E logic outputs will swing from 5K GND to the logic V ±15kV ESD Protection All pins on the 3V interface devices include ESD protection structures, but the ISL83387E incorporates advanced structures which allow the RS-232 pins (transmitter outputs and receiver inputs) to survive ESD events up to ± ...
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... LOAD CAPACITANCE (pF) FIGURE 12. TRANSMITTER OUTPUT VOLTAGE vs LOAD CAPACITANCE 11 ISL83387E resistor coupled with the larger charge storage capacitor yields a test that is much more severe than the HBM test. The extra ESD protection built into this device’s RS-232 pins allows the design of equipment meeting level 4 criteria without the need for additional board level protection on the RS-232 port ...
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... Typical Performance Curves 1000 2000 3000 0 LOAD CAPACITANCE (pF) FIGURE 14. SUPPLY CURRENT vs LOAD CAPACITANCE WHEN TRANSMITTING DATA Die Characteristics SUBSTRATE POTENTIAL (POWERED UP) GND TRANSISTOR COUNT ISL83387E: 1063 PROCESS Si Gate CMOS 12 ISL83387E 3.3V (Continued 3.5 3.0 250kbps 2.5 2.0 120kbps 1 ...
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... However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements 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 Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see www.intersil.com 13 ISL83387E M24.173 M B ...