General Description:

The MAX3372E–MAX3379E and MAX3390E–MAX3393E±15kV ESD-protected level translators provide the levelshifting necessary to allow data transfer in a multivoltage system. Externally applied voltages, VCC and VL,set the logic levels on either side of the device. A lowvoltage logic signal present on the VL side of the deviceappears as a high-voltage logic signal on the VCC side ofthe device, and vice-versa. The MAX3374E/MAX3375E/MAX3376E/MAX3379E and MAX3390E–MAX3393E unidirectional level translators level shift data in one direction (VL → VCC or VCC → VL) on any single data line.The MAX3372E/MAX3373E and MAX3377E/MAX3378Ebidirectional level translators utilize a transmission-gatebased design (Figure 2) to allow data translation ineither direction (VL ↔ VCC) on any single data line. TheMAX3372E–MAX3379E and MAX3390E–MAX3393Eaccept VL from +1.2V to +5.5V and VCC from +1.65V to+5.5V, making them ideal for data transfer between lowvoltage ASICs/PLDs and higher voltage systems.All devices in the MAX3372E–MAX3379E, MAX3390E–MAX3393E family feature a three-state output modethat reduces supply current to less than 1μA, thermalshortcircuit protection, and ±15kV ESD protection on theVCC side for greater protection in applications that routesignals externally. The MAX3372E/MAX3377E operateat a guaranteed data rate of 230kbps. Slew-rate limiting reduces EMI emissions in all 230kbps devices.The MAX3373E–MAX3376E/MAX3378E/MAX3379E andMAX3390E–MAX3393E operate at a guaranteed datarate of 8Mbps over the entire specified operating voltagerange. Within specific voltage domains, higher data ratesare possible. (See the Timing Characteristics table.)The MAX3372E–MAX3376E are dual level shifters available in 3 x 3 UCSP™, 8-pin TDFN, and 8-pin SOT23-8packages. The MAX3377E/MAX3378E/MAX3379E andMAX3390E–MAX3393E are quad level shifters availablein 3 x 4 UCSP, 14-pin TDFN, and 14-pin TSSOP packages.

Features:

● Logic-Level Translators Simplify Design by EnablingData Transfer Between Lower and Higher VoltageSystems

● Operation Down to +1.2V on VL

● Guaranteed Data Rate Options

• 230kbps

• 8Mbps (+1.2V ≤ VL ≤ VCC ≤ +5.5V)

• 10Mbps (+1.2V ≤ VL ≤ VCC ≤ +3.3V)

• 16Mbps (+1.8V ≤ VL ≤ VCC ≤ +2.5V and+2.5V ≤ VL ≤ VCC ≤ +3.3V)

● Bidirectional Level Translation (MAX3372E/MAX3373E and MAX3377E/MAX3378E)

● Low Power Consumption Reduces ThermalDissipation

● Quiescent Current (130µA typ)

● 1μA Supply Current in Three-State Output Mode

● Slew-Rate Limiting Lowers EMI

● Protection Features Increase System Reliability

● ±15kV ESD Protection on I/O VCC Lines

● Thermal Short-Circuit Protection

Applications:

● SPI, MICROWIRE, and I2C Level Translation

● Low-Voltage ASIC Level Translation

● Smart Card Readers

● Cell-Phone Cradles

● Portable POS Systems

● Portable Communication Devices

● Low-Cost Serial Interfaces

● Cell Phones

● GPS

● Telecommunications Equipment