ISL4260E Intersil Corporation, ISL4260E Datasheet
ISL4260E
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ISL4260E Summary of contents
Page 1
... The single pin powerdown function (SHDN = 0) disables all the receiver and transmitter outputs, while shutting down the charge pump to minimize supply current drain. Table 1 summarizes the features of the ISL4260E, while Application Note AN9863 summarizes the features of each device comprising the 3V RS-232 family. ...
Page 2
... Logic-Level Supply. All TTL/CMOS inputs and outputs are powered by this supply. L SHDN Active low TTL/CMOS input to tri-state receiver and transmitter outputs and to shut down the on-board power supply to place device in low power mode. The switching point is a function of the Connection 2 ISL4260E ISL4260E (QFN) TOP VIEW ...
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... Typical Operating Circuit TTL/CMOS LOGIC LEVELS 3 ISL4260E +3.3V to +5V + 0.1µ C1 0.1µ C2+ + 0.1µ OUT OUT LOGIC SHDN 0.1µF GND 0.1µ 0.1µ ...
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... Thermal Resistance (Typical, Note 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 300 Operating Conditions Temperature Range +0.3V) L ISL4260EIR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 5.5V 0 ...
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... IEC61000-4-2 Contact Discharge NOTE: 2. Transmitter skew is measured at the transmitter zero crossing points. Detailed Description The ISL4260E 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 ...
Page 6
... Software Controlled (Manual) Powerdown The ISL4260E may be forced into its low power, standby state via a simple shutdown (SHDN) pin (see Figure 2). Driving this pin high enables normal operation, while driving it low forces the IC into its powerdown state ...
Page 7
... TIME (20µs/DIV.) FIGURE 3. TRANSMITTER OUTPUTS WHEN EXITING POWERDOWN High Data Rates The ISL4260E maintains the RS-232 transmitter output voltages even at high data rates. Figure 4 details a transmitter loopback test circuit, and Figure 5 illustrates the loopback test result at 120kbps. For this test, all transmitters were simultaneously driving RS-232 loads in parallel with 1000pF, at 120kbps ...
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... CD4000. The ISL4260E V supply pin solves this problem connecting V to the same supply (1.8V to 5V) powering L the logic device, the ISL4260E logic outputs will swing from GND to the logic ±15kV ESD Protection All pins on the 3V interface devices include ESD protection ...
Page 9
... LOAD CAPACITANCE (pF) FIGURE 9. SUPPLY CURRENT vs LOAD CAPACITANCE WHEN TRANSMITTING DATA Die Characteristics SUBSTRATE POTENTIAL (POWERED UP) GND TRANSISTOR COUNT 422 PROCESS Si Gate CMOS 9 ISL4260E 3.3V (Continued 3.5 3.0 250kbps 2.5 2.0 120kbps 1.5 1.0 20kbps 0.5 4000 5000 FIGURE 10. SUPPLY CURRENT vs SUPPLY VOLTAGE ...
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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 10 ISL4260E L32.5x5 32 LEAD QUAD FLAT NO-LEAD PLASTIC PACKAGE (COMPLIANT TO JEDEC MO-220VHHD-2 ISSUE C ...