MAX3244EWI-T Maxim Integrated, MAX3244EWI-T Datasheet
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MAX3244EWI-T
Specifications of MAX3244EWI-T
Related parts for MAX3244EWI-T
MAX3244EWI-T Summary of contents
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... AutoShutdown Plus, MegaBaud, and UCSP are trademarks Functional Diagrams continued at end of data sheet. of Maxim Integrated Products, Inc. UCSP is a trademark of Maxim Integrated Products, Inc. For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com. MAX3224–MAX3227/ ...
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... 5. 3. +25° 5. +25° +70° MIN MIN TYP MAX , 0.3 1 0.8 2 2.4 0.5 ±0.01 ±1 ±0.05 ± -25 +25 0.6 1.2 0.8 1.5 1.5 2.4 1.8 2.4 0 Maxim Integrated MAX UNITS µA µ µA µ kΩ ...
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... Receiver Positive or Negative Threshold to INVALID High Receiver Positive or Negative Threshold to INVALID Low Receiver or Transmitter Edge to Transmitters Enabled Receiver or Transmitter Edge to t AUTOSHDN Transmitters Shutdown Maxim Integrated = +25°C.) A CONDITIONS All transmitter outputs loaded with 3kΩ to ground transmitter outputs = ± 5.5V, V ...
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... C = 150pF 1000pF C = 150pF 2500pF MIN TYP 250 1000 1000 0.15 0.15 200 200 MIN MAX MAX UNITS kbps µ V/µ MIN MAX MAX UNITS kbps µ 150 V/µs Maxim Integrated ...
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... LOAD = 3kΩ AVERAGE; 10 PARTS 500 1000 1500 2000 2500 LOAD CAPACITANCE (pF) Maxim Integrated MAX3224/MAX3226 SLEW RATE vs. LOAD CAPACITANCE +SLEW FOR DATA RATES UP TO 250kbps 0 5000 0 1000 2000 3000 LOAD CAPACITANCE (pF) MAX3225/MAX3227 SLEW RATE vs ...
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... SLEW RATE vs. LOAD CAPACITANCE TRANSMITTER AT 1Mbps 2 TRANSMITTERS AT 62.5kbps 0 0 400 800 1200 1600 LOAD CAPACITANCE (pF) MAX3245 TRANSMITTER SKEW vs. LOAD CAPACITANCE 1000 2000 LOAD CAPACITANCE (pF) 120kbps 20kbps 3000 4000 5000 2000 3000 Maxim Integrated ...
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... The charge pump operates in discontinuous mode: if the output voltages are less Maxim Integrated NAME Ready to Transmit Output, Active High. READY is enabled high when — READY V- goes below -4V and the device is ready to transmit ...
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... UART and interface are shut down PROTECTION DIODE PREVIOUS UART Tx GND SHDN = GND LOGIC μP TRANSITION DETECTOR MAX3244 I MAX3245 PROTECTION DIODE R2OUTB R2OUT THREE-STATED UART T1IN Tx GND FORCEOFF = GND RS-232 5kΩ R2IN 5kΩ T1OUT Maxim Integrated ...
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... This is ideal for sys- tems where V is set to ground in shutdown to CC accommodate peripherals such as UARTs (Figure 2). AutoShutdown is a trademark of Maxim Integrated Products, Inc. Maxim Integrated RECEIVER OR VALID TRANSMITTER RECEIVER EDGE WITHIN ...
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... The time required to exit shutdown is typically 100µs (Figure 6). EDGE FORCEOFF DETECT S 30sec TIMER EDGE DETECT R FORCEON FORCEOFF FORCEON AUTOSHDN INVALID HIGH +2.7V INDETERMINATE +0.3V 0 INVALID LOW -0.3V INDETERMINATE -2.7V INVALID HIGH , V- is pulled to ground, the transmit- CC AUTOSHDN POWERDOWN* Maxim Integrated ...
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... Figure 5 shows a circuit that forces the transmitters on for 100ms, allowing enough time for the other system to realize that the MAX3244/ MAX3245 is awake. If the other system outputs valid RS-232 signal transitions within that time, the RS-232 ports on both systems remain enabled. Maxim Integrated t INVH t AUTOSHDN t ...
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... CAN BE RETURNED TO V 0.1 0.33 Figure 7. Loopback Test Circuit 3.3V CC C1–C4 = 0.1μF 5μs/div BYPASS MAX3224 C1- MAX3225 C2+ MAX3226 V- MAX3227 C2 C2- MAX3244 MAX3245 OUT OUT 5kΩ FORCEON V FORCEOFF CC GND OR GND. CC FORCEON = FORCEOFF T1OUT T2OUT READY C3* C4 1000pF Maxim Integrated ...
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... V = 3.3V CC 2μs/div Figure 9. MAX3224/MAX3226/MAX3244 Loopback Test Result at 250kbps Maxim Integrated High Data Rates The MAX3225/MAX3227/MAX3245 maintain the RS-232 ±5.0V minimum transmitter output voltage at data rates up to 1Mbps (MegaBaud). Figure 10 shows a loopback test result with a single transmitter driven at 1Mbps and all transmitters loaded with an RS-232 receiver in paral- lel with 250pF ...
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... Figure 11b. Mouse Driver Test Circuit 0.1μ 0.1μF T1OUT 9 T2OUT 10 11 T3OUT R1IN 4 5kΩ R2IN 5 5kΩ R3IN 6 RS-232 INPUTS 5kΩ R4IN 7 5kΩ R5IN 8 5kΩ GND 25 COMPUTER SERIAL PORT + GND Tx SERIAL MOUSE Maxim Integrated ...
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... MAX3224 +3.0 to +5.5 MAX3225 +3.0 to +5.5 MAX3221 +3.0 to +5.5 MAX3226 +3.0 to +5.5 MAX3227 +3.0 to +5.5 Maxim Integrated The MAX3224–MAX3227/MAX3244/MAX3245 can directly interface with various 5V logic families, includ- ing ACT and HCT CMOS. See Table 4 for more informa- tion on possible combinations of interconnections. Table 5 lists other Maxim 3.0V to 5.5V powered trans- ceivers. SUPPLY (V) 3.3 Compatible with all CMOS families ...
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... T1IN T1OUT 9 14 T2IN T2OUT 10 13 T3IN 12 T3OUT 11 FORCEOFF 22 INVALID 21 AUTOSHUTDOWN FORCEON 23 PLUS R2OUTB 20 R1OUT R1IN 4 19 5kΩ R2OUT R2IN 5 18 5kΩ R3OUT R3IN 6 17 5kΩ R4OUT 16 R4IN 7 5kΩ R5OUT 15 R5IN 8 5kΩ GND 0.1μ 0.1μF Maxim Integrated ...
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... V+ 3 C1- 4 C2 T2OUT 8 R2IN 9 R2OUT 10 DIP/SSOP/TSSOP 15 GND FORCEOFF 18 READY *CONNECT EP TO GND. Maxim Integrated 20 FORCEOFF GND 18 T1OUT 17 MAX3224 R1IN 16 MAX3225 R1OUT 15 FORCEON 14 13 T1IN T2IN 12 INVALID T2IN INVALID 9 8 R2OUT ...
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... MAX3226EAE+ -40°C to +85°C MAX3227CAE+ 0°C to +70°C MAX3227EAE+ -40°C to +85°C MAX3244CWI+ 0°C to +70°C MAX3244CAI+ 0°C to +70°C MAX3244EWI+ -40°C to +85°C MAX3244EAI+ -40°C to +85°C MAX3245CWI+ 0°C to +70°C MAX3245CAI+ 0°C to +70°C MAX3245EWI+ -40°C to +85°C MAX3245EAI+ -40° ...
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... Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance. Maxim Integrated 160 Rio Robles, San Jose, CA 95134 USA 1-408-601-1000 © 2011 Maxim Integrated DESCRIPTION The Maxim logo and Maxim Integrated are trademarks of Maxim Integrated Products, Inc. Revision History PAGES CHANGED 1, 18 ...