UM3204QV

The UM3204 is quad channel ESD-protected level translator provide the level shifting necessary to allow data transfer in a multi-voltage system. Externally applied voltages, VCCA and VCCB, set the logic levels on either side of the device. A low-voltage logic signal present on the VCCA side of the device appears as a high-voltage logic signal on the VCCB side of the device, and vice-versa. The UM3204 bidirectional level translator utilizes a transmission-gate based design to allow data translation in either direction (ΔVCCA↔VCCB) on any single data line. The UM3204 accepts VCCA from +1.65V to +3.6V and VCCB from +2.3V to +5.5V, making it ideal for data transfer between low-voltage ASICs / PLDs and higher voltage systems. The UM3204 enters a three-state output mode to reduce supply current when output enable (OE) is low. The UM3204 is designed so that the OE input circuit is supplied by VCCA. ±5kV ESD protection on the VCCB side for greater protection in applications that route signals externally. The UM3204 is a quad level translator available in CSP12 1.9×1.4, QFN14 3.5×3.5, TSSOP14, QFN12 1.7×2.0 and QFN12 1.8×1.8 packages.

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

Key features

• Max Data Rates: 24Mbps(Push Pull), 2Mbps(Open Drain)
• Bidirectional Level Translation
• 1.65V to 3.6V on A Port and 2.3V to 5.5V on B Port (VCCA ≤ VCCB)
• ±5kV ESD Protection on B Port
• No Power-Supply Sequencing Required, VCCA or VCCB Can Be Ramped First
• CSP12, QFN14, TSSOP14 and QFN12 Packages