ICL3245 Intersil Corporation, ICL3245 Datasheet
ICL3245
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ICL3245 Summary of contents
Page 1
... This family is fully compatible with 3.3V only systems, mixed 3.3V and 5.0V systems, and 5.0V only systems. The ICL3245 driver, 5 receiver device that provides a complete serial port suitable for laptop or notebook computers. It also includes a noninverting always-active receiver for “wake-up” capability. ...
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... OUT 14 FORCEON INVALID PACKAGE PKG. DWG. # M20.209 M20.209 M20.209 M20.209 E20.3 E20.3 M20.209 M20.209 M20.209 M20.209 M28.209 M28.209 M28.173 M28.173 ICL3245 (SSOP, TSSOP) TOP VIEW C2 C1+ C2 GND ...
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... FORCEOFF Active low to shut down transmitters and on-chip power supply. This overrides any automatic circuitry and FORCEON (see Table 2). FORCEON Active high input to override automatic powerdown circuitry thereby keeping transmitters active. (FORCEOFF must be high). Typical Operating Circuits TTL/CMOS LOGIC LEVELS 3 ICL3225, ICL3245 FUNCTION ICL3225 +3.3V + 0.1µF 19 ...
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... Typical Operating Circuits +3.3V TTL/CMOS LOGIC LEVELS CONTROL LOGIC 4 ICL3225, ICL3245 (Continued) ICL3245 + 26 0.1µ C1 0.1µ C2+ + 0.1µ OUTB 19 R1 OUT R 1 5kΩ OUT R 2 5kΩ OUT R 5kΩ ...
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... They are not intended for use in Reflow solder processing applications. Operating Conditions Temperature Range ICL32XXC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C ICL32XXI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40°C to 85° 5.5V 0 25°C A TEST CONDITIONS Open, FORCEON = GND, FORCEOFF = V IN ICL3245 ICL322X FORCEON, FORCEOFF , FORCEON, FORCEOFF FORCEON, FORCEOFF = 1.6mA = -1.0mA = 3.3V = 5.0V = 3. 0V, Transmitter Output = ± ...
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... IEC61000-4-2 Contact Discharge IEC61000-4-2 Air Gap Discharge All Other Pins Human Body Model NOTES “edge” is defined as a transition through the transmitter or receiver input thresholds. 3. Skews are measured at the receiver input switching points (1.4V). 6 ICL3225, ICL3245 = 3V to 5.5V 0 25°C (Continued) ...
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... Connect unused inputs to GND for the best CC performance. Receivers All the ICL32XX devices contain standard inverting receivers, but only the ICL3245 receivers can three-state, via the FORCEOFF control line. Additionally, the ICL3245 includes a noninverting (monitor) receiver (denoted by the R label) that is always active, regardless of the state of OUTB any control lines ...
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... ICL3245 - INVALID DRIVING FORCEON AND FORCEOFF (EMULATES AUTOMATIC POWERDOWN) X NOTE 5 NOTE 5 X NOTE 5 NOTE 5 NOTES: 4. Applies only to the ICL3245. 5. Input is connected to INVALID Output. Powerdown Functionality This 3V family of RS-232 interface devices requires a nominal supply current of 0.3mA during normal operation (not in powerdown mode) ...
Page 9
... RS-232 interface cable is disconnected. In the case of a disconnected interface cable where all the receiver inputs are 9 ICL3225, ICL3245 floating (but pulled to GND by the internal receiver pull down resistors), the INVALID logic detects the invalid levels and drives the output low. The power management logic then uses this indicator to power down the interface block ...
Page 10
... RS- 232 level, forcing the ICL32XX 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 10 ICL3225, ICL3245 t AUTOPWDN AUTOPWDN another computer via a detachable cable ...
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... FIGURE 10. TRANSMITTER OUTPUTS WHEN EXITING Mouse Driveability The ICL3245 is specifically designed to power a serial mouse while operating from low voltage supplies. Figure 11 shows the transmitter output voltages under increasing load current. The on-chip switching regulator ensures the transmitters will supply at least V+ transmitters, 7 ...
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... CC FORCEOFF FIGURE 12. TRANSMITTER LOOPBACK TEST CIRCUIT 5V/DIV OUT R1 OUT V = +3. 0.1µF 2µs/DIV. FIGURE 13. LOOPBACK TEST AT 250kbps (C 12 ICL3225, ICL3245 5V/DIV OUT R1 OUT V+ FIGURE 14. LOOPBACK TEST AT 1Mbps ( Interconnection with 3V and 5V Logic The ICL32XXE directly interfaces with 5V CMOS and TTL logic families ...
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... FIGURE 15. TRANSMITTER OUTPUT VOLTAGE vs LOAD CAPACITANCE 90 ICL3225 80 1Mbps 1000 2000 3000 LOAD CAPACITANCE (pF) FIGURE 17. SUPPLY CURRENT vs LOAD CAPACITANCE WHEN TRANSMITTING DATA 13 ICL3225, ICL3245 V = 3.3V 25° 110 OUT OUT 10 0 4000 5000 FIGURE 16. SLEW RATE vs LOAD CAPACITANCE ...
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... Typical Performance Curves Die Characteristics SUBSTRATE POTENTIAL (POWERED UP) GND TRANSISTOR COUNT ICL3225: 937 ICL3245: 1109 PROCESS Si Gate CMOS 14 ICL3225, ICL3245 V = 3.3V 25°C (Continued 3.5 NO LOAD ALL OUTPUTS STATIC 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 19. SUPPLY CURRENT vs SUPPLY VOLTAGE 5.0 5.5 6.0 FN4878.8 February 27, 2006 ...
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... N is the maximum number of terminal positions. 10. Corner leads (1, N, N/2 and N for E8.3, E16.3, E18.3, E28.3, E42.6 will have a B1 dimension of 0.030 - 0.045 inch (0.76 - 1.14mm). 15 ICL3225, ICL3245 E20.3 20 LEAD DUAL-IN-LINE PLASTIC PACKAGE SYMBOL E A2 ...
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... Dimension “B” does not include dambar protrusion. Allowable dambar protrusion shall be 0.13mm (0.005 inch) total in excess of “B” dimension at maximum material condition. 10. Controlling dimension: MILLIMETER. Converted inch dimen- sions are not necessarily exact. 16 ICL3225, ICL3245 M20.209 20 LEAD SHRINK SMALL OUTLINE PLASTIC PACKAGE ...
Page 17
... Minimum space between protru- sion and adjacent lead is 0.07mm (0.0027 inch). 10. Controlling dimension: MILLIMETER. Converted inch dimensions are not necessarily exact. (Angles in degrees) 17 ICL3225, ICL3245 M28.173 LEAD THIN SHRINK SMALL OUTLINE PLASTIC ...
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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 18 ICL3225, ICL3245 M28.209 28 LEAD SHRINK SMALL OUTLINE PLASTIC PACKAGE M ...