ICL3245E Intersil Corporation, ICL3245E Datasheet
ICL3245E
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ICL3245E 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 ICL3245E 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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... C1 C1- 4 C2 OUT OUT 2 ICL3225E, ICL3227E, ICL3245E Ordering Information PKG. PART NO. * PACKAGE DWG. # ICL3245ECBZ 20 Ld SSOP M20.209 (Note SSOP M20.209 ICL3245ECV (Pb-free) ICL3245ECVZ 20 Ld PDIP E20.3 (Note PDIP** E20.3 ICL3245EIA (Pb-free) ICL3245EIAZ M20 ...
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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). 3 ICL3225E, ICL3227E, ICL3245E ICL3245E (SOIC, SSOP, TSSOP) TOP VIEW C2 ...
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... Typical Operating Circuits TTL/CMOS LOGIC LEVELS +3.3V TTL/CMOS LOGIC LEVELS 4 ICL3225E, ICL3227E, ICL3245E ICL3225E +3.3V + 0.1µ C1 0.1µ C2+ + 0.1µ OUT 5kΩ OUT 5kΩ READY FORCEOFF 14 FORCEON INVALID GND ...
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... Typical Operating Circuits +3.3V + TTL/CMOS LOGIC LEVELS 5 ICL3225E, ICL3227E, ICL3245E (Continued) ICL3245E 26 0.1µ C1 0.1µ C2+ + 0.1µ OUTB 19 R1 OUT OUT OUT OUT ...
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... Input Logic Threshold Low T , FORCEON, FORCEOFF IN Input Logic Threshold High T , FORCEON, IN FORCEOFF Input Leakage Current T , FORCEON, FORCEOFF IN Output Leakage Current FORCEOFF = GND, ICL3245E Only Output Voltage Low I OUT Output Voltage High I OUT RECEIVER INPUTS Input Voltage Range Input Threshold Low ...
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... Maximum Data Rate R = 3kΩ, One Transmitter L Switching Receiver Propagation Delay Receiver Input to Receiver Output, C Receiver Output Enable Time Normal Operation (ICL3245E Only) Receiver Output Disable Time Normal Operation (ICL3245E Only) Transmitter Skew t PHL Receiver Skew t PHL Transition Region Slew Rate ...
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... Connect unused inputs to GND for the best CC performance. Receivers All the ICL32XXE devices contain standard inverting receivers, but only the ICL3245E receivers can tristate, via the FORCEOFF control line. Additionally, the ICL3245E 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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... ICL3245E - INVALID DRIVING FORCEON AND FORCEOFF (EMULATES AUTOMATIC POWERDOWN) X NOTE 6 NOTE 6 X NOTE 6 NOTE 6 NOTES: 5. Applies only to the ICL3245E. 6. 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) ...
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... In the case of a disconnected interface cable where all the receiver inputs are floating (but pulled to GND 10 ICL3225E, ICL3227E, ICL3245E 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 ...
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... FIGURE 9. ENHANCED AUTOMATIC POWERDOWN, INVALID AND READY TIMING DIAGRAMS 11 ICL3225E, ICL3227E, ICL3245E CPU FIGURE 8. CONNECTIONS FOR AUTOMATIC POWERDOWN Hybrid Automatic Powerdown Options For devices which communicate only through a detachable cable, connecting INVALID to FORCEOFF (with FORCEON = 0) may be a desirable configuration. While the cable is ...
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... ICL3225E, ICL3227E, ICL3245E Mouse Driveability The ICL3245E 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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... R OUT FORCEON V 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 13 ICL3225E, ICL3227E, ICL3245E 5V/DIV OUT OUT FIGURE 14. LOOPBACK TEST AT 1Mbps (C 5k Interconnection with 3V and 5V Logic The ICL32XXE directly interfaces with 5V CMOS and TTL logic families ...
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... LOAD CAPACITANCE (pF) FIGURE 15. TRANSMITTER OUTPUT VOLTAGE vs LOAD CAPACITANCE 14 ICL3225E, ICL3227E, ICL3245E 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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... FIGURE 19. SUPPLY CURRENT vs LOAD CAPACITANCE WHEN TRANSMITTING DATA Die Characteristics MSUBSTRATE POTENTIAL (POWERED UP) GND TRANSISTOR COUNT ICL3225E: 937 ICL3227E: 825 ICL3245E: 1109 PROCESS Si Gate CMOS 15 ICL3225E, ICL3227E, ICL3245E V = 3.3V 25°C (Continued 250kbps 120kbps 4000 5000 FIGURE 18. SUPPLY CURRENT vs LOAD CAPACITANCE 3.5 1Mbps 3 ...
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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). 16 ICL3225E, ICL3227E, ICL3245E E20.3 20 LEAD DUAL-IN-LINE PLASTIC PACKAGE SYMBOL E ...
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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” dimen- sion at maximum material condition. 10. Controlling dimension: MILLIMETER. Converted inch dimensions are not necessarily exact. 17 ICL3225E, ICL3227E, ICL3245E M16.209 16 LEAD SHRINK SMALL OUTLINE PLASTIC PACKAGE ...
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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. 18 ICL3225E, ICL3227E, ICL3245E M20.209 LEAD SHRINK SMALL OUTLINE PLASTIC PACKAGE ...
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... The lead width “B”, as measured 0.36mm (0.014 inch) or greater above the seating plane, shall not exceed a maximum value of 0.61mm (0.024 inch) 10. Controlling dimension: MILLIMETER. Converted inch dimen- sions are not necessarily exact. 19 ICL3225E, ICL3227E, ICL3245E M28.3 28 LEAD WIDE BODY 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 20 ICL3225E, ICL3227E, ICL3245E M28.209 28 LEAD SHRINK SMALL OUTLINE PLASTIC PACKAGE M ...