ISL4223E INTERSIL [Intersil Corporation], ISL4223E Datasheet
ISL4223E
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ISL4223E Summary of contents
Page 1
... The ISL4221E driver, 1 receiver device and the ISL4223E driver, 2 receiver device that, coupled with the 5x5 QFN package, provide the industry’s smallest, lowest power serial port suitable for PDAs, and hand-held applications ...
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... GND 11 T1 OUT 10 FORCEON FUNCTION (Continued) TEMP. RANGE (°C) PACKAGE PKG. DWG QFN L20.5x5 Tape & Reel - QFN L20.5x5 Tape & Reel (Pb-free) ISL4223E (QFN) TOP VIEW OUT R1 C1 C2+ 3 ...
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... Typical Operating Circuits TTL/CMOS LOGIC LEVELS TTL/CMOS LOGIC LEVELS 3 ISL4221E, ISL4223E ISL4221E +3.3V + 0.1µ C1 0.1µ 0.1µ C2 OUT 5kΩ FORCEOFF 10 8 FORCEON INVALID GND 12 ISL4223E +3.3V + 0.1µ C1+ ...
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... INVH Receiver Positive or Negative Threshold to INVALID Low Delay (t ) INVL 4 ISL4221E, ISL4223E Thermal Information Thermal Resistance (Typical, Note QFN Package QFN Package Moisture Sensitivity (see Technical Brief TB363) QFN Package Level 1 Maximum Junction Temperature (Plastic Package 150 Maximum Storage Temperature Range . . . . . . . . . . -65 Maximum Lead Temperature (Soldering 10s) ...
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... ElA RS-232C and V.28 specifications even with V = 3.0V. The circuit is divided CC into three sections: The charge pump, the transmitters, and the receivers. 5 ISL4221E, ISL4223E = 3V to 5.5V 0 ...
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... V = 5.5V, during normal operation (not in CC powerdown mode). This is considerably less than the 5mA to 6 ISL4221E, ISL4223E 11mA current required by comparable 5V RS-232 devices, allowing users to reduce system power simply by switching to this new family. Powerdown Functionality The already low current requirement drops significantly when the device enters powerdown mode ...
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... PWR FORCEON MGT LOGIC INVALID I/O UART CPU FIGURE 4. CONNECTIONS FOR MANUAL POWERDOWN WHEN NO VALID RECEIVER SIGNALS ARE PRESENT The time to recover from automatic powerdown mode is typically 100µs. 7 ISL4221E, ISL4223E FORCEON EN TRANSMITTER RECEIVER INPUT INPUT OUTPUTS OUTPUTS H L Active H H Active ...
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... INVALID switches back high 1µs after detecting a valid RS-232 level on a receiver input. INVALID operates in all modes (forced or automatic powerdown, or forced on also useful for systems employing manual powerdown 8 ISL4221E, ISL4223E circuitry. When automatic powerdown is utilized, INVALID = 0 indicates that the ISL422XE is in powerdown mode. RECEIVER INPUTS ...
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... C1- ISL422XE + C2 C2 OUT R OUT FORCEON FORCEOFF FIGURE 9. TRANSMITTER LOOPBACK TEST CIRCUIT 9 ISL4221E, ISL4223E 5V/DIV OUT R1 OUT T2 5V/DIV. T1 ± 3.7V OUT 5V minimum R1 OUT Interconnection with 3V and 5V Logic The ISL422XE directly interface with 5V CMOS and TTL logic families. Nevertheless, with the ISL422XE at 3.3V, and ...
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... The RS-232 pins on “E” family devices can withstand HBM ESD events to ±15kV. 10 ISL4221E, ISL4223E IEC61000-4-2 Testing The IEC61000 test method applies to finished equipment, rather than to an individual IC. Therefore, the pins most likely ...
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... LOAD CAPACITANCE (pF) FIGURE 14. SUPPLY CURRENT vs LOAD CAPACITANCE WHEN TRANSMITTING DATA 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0 2.5 3.0 3.5 4.0 4.5 SUPPLY VOLTAGE (V) FIGURE 16. SUPPLY CURRENT vs SUPPLY VOLTAGE 11 ISL4221E, ISL4223E 3.3V OUT OUT 4000 5000 250kBps 30 25 120kBps ...
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... Quad Flat No-Lead Plastic Package (QFN) Micro Lead Frame Plastic Package (MLFP) 12 ISL4221E, ISL4223E L16.5x5 16 LEAD QUAD FLAT NO-LEAD PLASTIC PACKAGE (COMPLIANT TO JEDEC MO-220VHHB ISSUE C) SYMBOL MIN 0. θ - NOTES: 1. Dimensioning and tolerancing conform to ASME Y14.5-1994. ...
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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 ISL4221E, ISL4223E L20.5x5 20 LEAD QUAD FLAT NO-LEAD PLASTIC PACKAGE (COMPLIANT TO JEDEC MO-220VHHC ISSUE C) ...