74AVC1T45

74AVC1T45 SINGLE BIT DUAL POWER SUPPLY TRANSLATING TRANSCEIVER WITH 3 STATE OUTPUTS Description The 74AVC1T45 is a single bit, dual supply transceiver with tri-state outputs suitable for transmitting a single logic bit across different voltage domains. The A input/output pin is designed to track VCCA while the B input/output tracks VCCB. This arrangement allows for universal low-voltage translation between any voltages from 1.2V to 3.6V. The Direction pin (DIR) controls the direction of the transceiver and in a logic voltage related to VCCA. When a high logic level is applied to DIR the A pin becomes an input and the B pin becomes the output. Conversely the roles of A and B are reversed when DIR is asserted low. The tri-state feature occurs when either of the power supply voltages are zero. This is also an Ioff feature and allows for the output to remain in a high-impedance state with both power supplies at 0V preventing damaging backflow currents and providing power down electrical isolation up to 3.6 V as not to interfere with any logic activity on pin A or B. Pin Assignments (Top View ) Vcc(A) 1 GND 2 6 Vcc(B) 5 DIR A3 4B SOT26 SOT363 (Bottom View) A 3 4B GND 2 5 DIR Vcc(A) 1 6 Vcc(B) X2-DFN1409-6 Chip Scale Alternative (Top View ) Vcc(A) 1 GND 2 A3 6 Vcc(B) 5 DIR 4B X1-DFN1010-6 X2-DFN0910-6 X2-DFN1410-6 Features Wide Supply Voltage Range:  VCC(A): from 1.2V to 3.6V  VCC(B): from 1.2V to 3.6V ± 12mA Output Drive at 3.3V High Noise Immunity—(100mV...