MAXIM Manuals

The DS80C310 is a fast 80C31/80C32-compatible microcontroller from Maxim. It executes every 8051 instruction between 1.5x and 3x faster than the original architecture for the same crystal speed. It has a maximum clock frequency of 33MHz and includes three timer/counters, 256 bytes of RAM, and a serial port.

The MAX6220 is a low-noise, precision voltage reference with extremely low temperature coefficient and excellent initial accuracy. It features buried-zener technology for low noise performance. The MAX6220 is ideal for high-resolution data-conversion systems with outputs at 2.5V, 4.096V, and 5.0V.

The MAX5033 is a high-efficiency, high-voltage step-down DC-DC converter from MAXIM. It is suitable for automotive, consumer electronics, and industrial distributed power applications. The product features a wide input voltage range (7.5V to 76V), fixed (3.3V, 5V, 12V) and adjustable (1.25V to 13.2V) output voltage, and low static current (270µA).

The MAX4789 series switches feature internal current limiting to prevent damage to host devices due to faulty load conditions. These analog switches have a low 0.2Ω on-resistance and operate from 2.3V to 5.5V input voltage range. They are avail- able with guaranteed 200mA, 250mA, and 300mA cur- rent limits, making them ideal for SDIO and other load switching applications. When the switch is on and a load is connected to the port, a guaranteed blanking time of 14ms ensures that the transient voltages settle down. If after this blanking time the load current is greater than the current limit, the MAX4789, MAX4791, and MAX4793 enter a latch- off state where the switch is turned off and FLAG is issued to the microprocessor. The switch can be turned on again by cycling the power or the ON pin. The MAX4790, MAX4792, and MAX4794 have an autoretry feature where the switch turns off after the blanking time and then continuously checks to see if the overload condition is present. The switch remains on after the overload condition disappears.

MAX4655-MAX4658 is a medium-voltage CMOS analog switch with low on-resistance of 10Ω max, specifically designed to handle large switch cur- rents.

The MAX4641/MAX4642/MAX4643 are three single-supply, low-power, high-performance SPST switches that can meet the needs of various applications.

The MAX4617/MAX4618/MAX4619 are high-speed, low-voltage, CMOS analog ICs configured as an 8-channel multiplexer (MAX4617), two 4-channel multiplexers (MAX4618), and three single-pole/double-throw (SPDT) switches (MAX4619). These CMOS devices can operate continuously with a +2V to +5.5V single supply. Each switch can handle Rail-to-Rail® analog signals. The off-leakage current is only 1nA at TA = +25°C and 10nA at TA = +85°C. All digital inputs have 0.8V to 2.4V logic thresholds, ensuring TTL/CMOS-logic compatibility when using a single +5V supply.

The MAX4516/MAX4517 are single-pole/single-throw (SPST), CMOS, low-voltage, dual-supply analog switches with very low switch on-resistance. The MAX4516 is normally open (NO). The MAX4517 is normally closed (NC). These CMOS switches can operate continuously with dual supplies between ±1V and ±6V. Each switch can handle rail-to-rail analog signals. The off-leakage current maximum is only 1nA at +25°C or 20nA at +85°C. The digital input is referenced to the positive power supply and is CMOS compatible. For pin-compatible parts for use with a single supply, refer to the MAX4514/MAX415.

This product is a high-precision lithium-ion battery monitor with overvoltage protection, overcurrent/short-circuit protection, undervoltage protection, and zero-volt battery recovery charging.

The DS1088L is a low-cost clock generator that produces a square-wave output without external timing components. The fixed-frequency oscillator is available in factory-calibrated frequencies from 312kHz to 133MHz. The DS1088L has a power-down pin for power-sensitive applications. It is commonly used in printers, copiers, automotive telematics, computer peripherals, POS terminals, and cable modems.

The MAX801/MAX808 microprocessor (µP) supervisory circuits monitor and control the activities of +5V µPs by providing backup-battery switchover, low-line indication, and µP reset. Additional features include a watchdog for the MAX801 and CMOS RAM write protection for the MAX808. The MAX801/MAX808 offer a choice of reset-threshold voltage (denoted by suffix letter): 4.675V (L), 4.575V (N), and 4.425V (M). These devices are available in 8-pin DIP and SO packages.