UM3208 - Union Semiconductor

UM3208 8-Bit Bidirectional Voltage-Level Translator

The UM3208 is ±15kV 8-channel ESD-protected level translator provide the level shifting necessary to allow data transfer in a multi-voltage system. Externally applied voltages, VCCB and VCCA, 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 .

Features

z SPI, MICROWIRE, and I2C Level z Max Data Rates: Translation 24Mbps(Push Pull), z Low-Voltage ASIC Level Translation 2Mbps(Open Drain) z Smart Card Readers z Bidirectional Level Translation z Cell-phone Cradles z 1.65V to 3.6V on A port and 2.3V to 5.5V z Portable POS Systems z Portable Communication Devices on B port(VCCA≤VCCB) z ±15kV ESD Protection on B port z Low-Cost Serial Interfaces z No Power-Supply Sequencing Required z Cell-Phones z GPS z Telecommunications Equipment VCCA or VCCB Can Be Ramped First z CSP20 bump Package Pin Configurations (Bottom View) (Top View) .