isl81334 Intersil Corporation, isl81334 Datasheet
isl81334
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isl81334 Summary of contents
Page 1
... ESD Protected, 5V, Two Port, Dual ± Protocol (RS-232/RS-485) Transceivers The ISL81334, ISL41334 are two port interface ICs where each port can be independently configured as a single RS-485, RS-422 transceiver dual (2 Tx, 2 Rx) RS- 232 transceiver. With both ports set to the same mode, two RS-485, RS-422 transceivers, or four RS-232 transceivers are available ...
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... SEL1 SEL2 GND ISL81334, ISL41334 PART TEMP. MARKING RANGE (°C) -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 C2+ C2 /DE1 ...
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... Open Open ISL81334, ISL41334 TABLE 2. ISL81334 FUNCTION TABLE RECEIVER OUTPUTS DRIVER OUTPUTS High-Z High-Z High-Z ON High-Z* High-Z ON High-Z* ON OUTPUTS SEL1 or 2 ON/OFF DE1 ...
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... Open ISL81334, ISL41334 TABLE 3. ISL41334 FUNCTION TABLE RECEIVER OUTPUTS RXEN N. N.A. High-Z High High-Z High-Z High High-Z* High ...
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... RS-232 External capacitor (voltage inverter) is connected to this lead. Not needed if both ports in RS-485 Mode. V+ RS-232 Internally generated positive RS-232 transmitter supply (+5.5V). C3 not needed if both ports in RS-485 Mode. V- RS-232 Internally generated negative RS-232 transmitter supply (-5.5V). C4 not needed if both ports in RS-485 Mode. 5 ISL81334, ISL41334 FUNCTION supply for the high voltage level. (QFN only forces output Y high ...
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... C 2 C2+ + 0.1µ DE1 SEL1 CC GND 14 NOTE: PINOUT FOR SOIC AND SSOP SAME FOR PORT 2. 6 ISL81334, ISL41334 + 0.1µF 0.1µF 15 0.1µ 0.1µ ...
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... DC CHARACTERISTICS - LOGIC PINS (i.e., DRIVER AND CONTROL INPUT PINS) Input High Voltage V IH1 V IH2 V IH3 7 ISL81334, ISL41334 Thermal Information = +25°C) Thermal Resistance + 0. SOIC Package (Note SSOP Package (Note QFN Package (Note 4 ...
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... POWER SUPPLY CHARACTERISTICS No-Load Supply Current (Note 7) I CC232 I CC485 Shutdown Supply Current I SHDN232 I SHDN485 ESD CHARACTERISTICS Bus Pins ( Any Mode All Other Pins 8 ISL81334, ISL41334 = 4.5V to 5.5V 0.1µ 5V +25°C (Note 6). (Continued TEST CONDITIONS QFN ...
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... Driver Disable from Output Low t LZ Driver Disable from Output High t HZ Driver Enable from Shutdown to t ZL(SHDN) Output Low Driver Enable from Shutdown to t ZH(SHDN) Output High 9 ISL81334, ISL41334 = 4.5V to 5.5V 0.1µ 5V +25°C (Note 6). (Continued TEST CONDITIONS R = 3kΩ, Measured From L ...
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... Applies to peak current. See “Typical Performance Curves” starting on page 19 for more information defaults to RS-485 mode (>15kΩ) when the device is unpowered (V IN ≤ 5.25V. 10 11. Parts are 100% tested at +25°C. Over-temperature limits established by characterization and are not production tested. 10 ISL81334, ISL41334 = 4.5V to 5.5V 0.1µ 5V +25°C (Note 6). (Continued) ...
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... Test Circuits and Waveforms SIGNAL GENERATOR FIGURE 2A. TEST CIRCUIT FIGURE 2. RS-485 DRIVER PROPAGATION DELAY AND DIFFERENTIAL TRANSITION TIMES 11 ISL81334, ISL41334 FIGURE 1. RS-485 DRIVER V AND 100pF L DIFF C = 100pF L DIFF OUT ( ...
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... Only) 1 (QFN Only) 1 (QFN Only) 1 -/0 ZH(SHDN) t -/0 ZL(SHDN) FIGURE 5A. TEST CIRCUIT FIGURE 5. RS-485 RECEIVER ENABLE AND DISABLE TIMES 12 ISL81334, ISL41334 (Continued) 500Ω GND (ON/OFF FOR SHDN (pF) L GND GND 100 V 100 ...
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... Both of these effects are real concerns when communicating over the RS-485, RS-422 maximum distance of 4000’ (1220m important to note that the ISL81334, ISL41334 don’t follow the RS-485 convention whereby the inverting I/O is labeled “B/Z”, and the noninverting I/O is “A/Y”. ...
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... ISL81334, ISL41334 Protocol selection is handled via a logic pin (SELX) for each port. . ISL81334, ISL41334 Advantages These dual protocol ICs offer many parametric improvements versus those offered on competing dual protocol devices. Some of the major improvements are: • 15kV Bus Pin ESD - Eases board level requirements • ...
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... Rx upper switching point at -40mV, thereby ensuring that is reduced the Rx recognizes a 0V differential as a high level. CC All the Rx outputs are short circuit protected, and are tri-state when the IC is forced into SHDN, but ISL81334 (SOIC and FN6202.3 November 21, 2007 ...
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... Drivers are also tri-stated when the SHDN, or when the 5V power supply is off. SPEED OPTIONS The ISL81334 (SOIC, SSOP) has fixed, high slew rate driver outputs optimized for 20Mbps data rates. The ISL41334 (QFN) offers three user selectable data rate options: “Fast” ...
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... Small Packages Many competing dual protocol ICs are available only in monstrously large SOIC packages. The ISL81334’ SSOP is 50% smaller than even SOIC, and the ISL41334’s tiny 6mmx6mm QFN is 80% smaller than SOIC. Flow Through Pinouts Even the ISL81334, ISL41334 pinouts are features, in that the “ ...
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... ISL81334, ISL41334 The V IH pin to the shown in Figures 20 and 21. All of the inputs with internal pull-up resistors (DE, SP, LB, ON/OFF) (see Figure 15), being driven to the low input state. The worst case I L occurs during SHDN (see Figure 20), due to the I the ON/OFF pin pull-up resistor when that pin is driven low ...
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... DIFFERENTIAL OUTPUT VOLTAGE (V) FIGURE 16. RS-485, DRIVER OUTPUT CURRENT vs DIFFERENTIAL OUTPUT VOLTAGE 19 ISL81334, ISL41334 jitter budget of 10 likely better to go with the slow speed option for data rates of 115kbps or less, to minimize fast edge effects. Likewise, the medium speed option is a good choice for data rates between 115kbps and 460kbps. ...
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... RS-485 GND 100µ RS-232 GND 10µ RS-485 GND 1µ (V) L FIGURE 20. RS-232, V SUPPLY CURRENT (QFN ONLY) 20 ISL81334, ISL41334 5V +25°C; Unless Otherwise Specified. (Continued 4.0 FULL TEMP RANGE 3.5 3.0 2 HIGH 2.0 1.5 1 ≤ ...
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... C = 100pF DIFF DHL 30 t DLH 25 20 -40 - TEMPERATURE (°C) FIGURE 26. RS-485, DRIVER PROPAGATION DELAY vs TEMPERATURE (FAST DATA RATE) 21 ISL81334, ISL41334 5V +25°C; Unless Otherwise Specified. (Continued 400 350 300 250 200 150 100 t DHL 50 -40 50 ...
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... TIME (10ns/DIV) FIGURE 32. RS-485, DRIVER AND RECEIVER WAVEFORMS, LOW TO HIGH (FAST DATA RATE) 22 ISL81334, ISL41334 5V +25°C; Unless Otherwise Specified. (Continued 60Ω 100pF FIGURE 29. RS-485, DRIVER AND RECEIVER WAVEFORMS, = 60Ω, C ...
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... TEMPERATURE (°C) FIGURE 36. RS-232, TRANSMITTER SHORT CIRCUIT CURRENT vs TEMPERATURE C = 1000pF, 1 CHANNEL SWITCHING/PORT Y 1μs/DIV. FIGURE 38. RS-232, TRANSMITTER AND RECEIVER WAVEFORMS AT 500kbps 23 ISL81334, ISL41334 5V +25°C; Unless Otherwise Specified. (Continued 7.5 250kbps 5.0 2.5 500kbps 0 -2.5 500kbps -5.0 250kbps -7.5 4000 ...
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... SLOW 10 1 DOUBLE TERM’ED WITH 121Ω 0.1 32 100 200 300 400 500 600 DATA RATE (kbps) FIGURE 44. RS-485, TRANSMITTER JITTER vs DATA RATE WITH 1000’ CAT-5 CABLE 24 ISL81334, ISL41334 5V +25°C; Unless Otherwise Specified. (Continued 7.5 ≥ V ±4V OUT V 5.0 2 ...
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... Die Characteristics SUBSTRATE AND QFN THERMAL PAD POTENTIAL (POWERED UP): GND TRANSISTOR COUNT: 4838 PROCESS: BiCMOS 25 ISL81334, ISL41334 FN6202.3 November 21, 2007 ...
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... L40.6x6 40 LEAD QUAD FLAT NO-LEAD PLASTIC PACKAGE Rev 3, 10/06 6.00 6 PIN 1 INDEX AREA (4X) 0.15 TOP VIEW ( TYP ) ( TYPICAL RECOMMENDED LAND PATTERN 26 ISL81334, ISL41334 4X 36X 0. 40X ± BOTTOM VIEW ± SIDE VIEW ( 36X REF ( 40X 0 ...
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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. 27 ISL81334, ISL41334 M28.3 (JEDEC MS-013-AE ISSUE C) 28 LEAD WIDE BODY SMALL OUTLINE PLASTIC PACKAGE M B ...
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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 28 ISL81334, ISL41334 M28.209 28 LEAD SHRINK SMALL OUTLINE PLASTIC PACKAGE M ...