MAX243EPE

Series:	--
Packaging:	Tube
Part Status:	Active
Type:	Transceiver
Protocol:	RS232
Number of Drivers/Receivers:	2/2
Duplex:	Full
Receiver Hysteresis:	500mV
Data Rate:	200kbps
Voltage - Supply:	4.5 V ~ 5.5 V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Through Hole
Package / Case:	16-DIP (0.300", 7.62mm)
Supplier Device Package:	16-PDIP
Base Part Number:	MAX243

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MAX243EPE Application Field and Working PrincipleThe MAX243EPE is an advanced, level-shifting, "Tri-State" logic interface chip. It is made up of three N-channel MOS transistors (NMOS), with two of them coupled as a level-shifter and the third as an output driver. It is a low-power, low-voltage logic interface chip designed for applications where there is a need to interface different logic levels, such as between +5 V and 3.3 V, +5 V and +3.3 V, +12V and +5V, etc. The MAX243EPE is a standard interface-driver, transceivers and receivers component suitable for many different applications.The MAX243EPE is designed to be used in a wide variety of applications, including but not limited to automotive, computer, consumer electronics, and communications applications. In automobile applications, the MAX243EPE can be used to interface the logic signals (for example, the signals sent by a microcontroller) to the 12V supply system. In computer applications, it is used to interface between the logic and the output device, such as a printer or monitor. In consumer electronics, it is used to interface between the processor and the LCD display or the RF receiver and the antenna. In communication applications, it is used to interface between the logic signals of modems and the signals sent to various destination.The MAX243EPE is designed for logic-level shifting and designed to withstand high levels of noise and EMI. It also has an internal power clamp circuit to ensure high isolation voltage and noise immunity. The chip can operate at temperatures ranging from 0°C to +70°C and it consumes very low power. It also features thermal protection and a 3.3 V output high-current drivertransistor.The MAX243EPE has two basic modes of operation. The first is the level-shifting or "Transceiver" mode which is used when the logic voltage is different than the output voltage. In this mode, two of the NMOS transistors are used to either increase or decrease the voltage level of the logic signal. The third transistor is then used as the output driver. This mode is used for interfacing between logic signals of different voltages.In the second mode of operation, the output driver transistor is used as a switch. This is known as the "Receiver" mode and it is used when the logic logic signal is the same as the output voltage. In this mode, the chip can switch the logic signal on or off. This is useful for applications such as clock generation, interface to LEDs or lamps, and to switch the power on or off.The MAX243EPE is a cost-effective solution for interfacing between different logic levels, while providing high level of noise immunity and low power consumption. Its features make it an ideal choice for a wide range of applications and its versatility makes it a valuable addition to any system.

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