icl3238e Intersil Corporation, icl3238e Datasheet
icl3238e
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icl3238e Summary of contents
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... Data rates greater than 250kbps are guaranteed at worst case load conditions providing compatibility with popular PC communication software. The ICL3238E driver, 3 receiver device optimized for DCE applications with full hardware handshaking. It also includes a noninverting always-active receiver for RING INDICATOR monitoring. ...
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... Pinout ICL3238E (SSOP, TSSOP) TOP VIEW C2+ 1 GND OUT T2 6 OUT T3 7 OUT OUT OUT 13 FORCEON 14 FORCEOFF Pin Descriptions PIN V System Power Supply Input (3.0V to 5.5V Internally Generated Positive Transmitter Supply (+5.5V). V- Internally Generated Negative Transmitter Supply (-5.5V). ...
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... Typical Operating Circuit +3.3V + 0.1µF NOTE 3 TTL/CMOS LOGIC LEVELS CONTROL LOGIC NOTES: 2. The negative terminal of C can be connected to either For V = 3.15V (3.3V -5%), use ICL3238E ICL3238E C1 0.1µ C2+ + 0.1µ C2 ...
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... Thermal Resistance (Typical, Note TSSOP Package . . . . . . . . . . . . . . . . . . . . . . 28 Ld SSOP Package . . . . . . . . . . . . . . . . . . . . . . . Maximum Junction Temperature (Plastic Package 150 Maximum Storage Temperature Range . . . . . . . . . -65 Maximum Lead Temperature (Soldering 10s 300 (Lead Tips Only) Operating Conditions +0.3V CC Temperature Range ICL3238ECX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 ICL3238EIX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40 = 3.15V to 5.5V 0.1µ TEST CONDITIONS ...
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... All Other Pins Human Body Model NOTES: 5. These inputs utilize a positive feedback resistor. The input current is negligible when the input is at either supply rail “edge” is defined as a transition through the transmitter or receiver input thresholds. 5 ICL3238E = 3.15V to 5.5V 0.1µ ...
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... Detailed Description ICL3238E operates from a single +3V to +5.5V supply, guarantees a 250kbps minimum data rate, requires only four small external 0.1 F (0.22 F for V µ µ CC features low power consumption, and meets all EIA/TIA-232 and V.28 specifications. The circuit is divided into three sections: The charge pump, the transmitters, and the receivers ...
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... This micro-power mode makes this device ideal for battery powered and portable applications. Software Controlled (Manual) Powerdown The ICL3238E allows the user to force the IC into the low R XOUT power, standby state, and utilizes a two pin approach where ≤ V ...
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... The INVALID output signal switches low to indicate that invalid levels have persisted on all of the receiver inputs for more than 60 on the state of the ICL3238E (see the next sections for methods of utilizing INVALID to power down the device). INVALID switches high 1 level on a receiver input. INVALID operates in all modes (forced or automatic powerdown, or forced on also useful for systems employing manual powerdown circuitry ...
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... INVALID switches low and drives the ICL3238E into a forced powerdown condition. INVALID switches high as soon as a receiver input senses a valid RS- 232 level, forcing the ICL3238E 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 ...
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... CC capacitor of the same value as the charge-pump capacitor C Connect the bypass capacitor as close as possible to the IC. Operation Down to 2.7V ICL3238E transmitter outputs meet RS-562 levels ( full data rate, with V as low as 2.7V. RS-562 levels CC typically ensure inter operability with RS-232 devices. Transmitter Outputs when Exiting ...
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... Interconnection with 3V and 5V Logic The ICL3238E directly interfaces with 5V CMOS and TTL logic families. Nevertheless, with the ICL32XX at 3.3V, and the logic supply at 5V, AC, HC, and CD4000 outputs can drive ICL32XX inputs, but ICL32XX outputs do not reach the minimum V for these logic families. See Table 4 for more IH information ...
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... LOAD CAPACITANCE (pF) FIGURE 16. SUPPLY CURRENT vs LOAD CAPACITANCE WHEN TRANSMITTING DATA Die Characteristics SUBSTRATE POTENTIAL (POWERED UP): GND TRANSISTOR COUNT: 1235 PROCESS: Si Gate CMOS 12 ICL3238E 3.3V OUT OUT 4000 5000 3.5 3.0 2.5 250kbps 2 ...
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... Dimension “B” does not include dambar protrusion. Allowable dam- bar protrusion shall be 0.13mm (0.005 inch) total in excess of “B” dimension at maximum material condition. 10. Controlling dimension: MILLIMETER. Converted inch dimensions are not necessarily exact. 13 ICL3238E M28.209 LEAD SHRINK SMALL OUTLINE PLASTIC PACKAGE ...
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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 14 ICL3238E M28.173 M B ...