Product Summary
The SN74AVCH2T45DCUR is a dual-bit dual-supply bus transceiver with configurable voltage translation and 3-state ouputs. The SN74AVCH2T45DCUR uses two separate configurable power-supply rails. The SN74AVCH2T45DCUR is optimizedto operate with VCCA/VCCB set at 1.4V to 3.6V. The SN74AVCH2T45DCUR is designed for asynchronous communication between data buses.
Parametrics
SN74AVCH2T45DCUR absolute maximum ratings: (1) Supply voltage range VCCA, VCCB: -0.5 to 4.6V; (2) Supply voltage range VI: -0.5 to 4.6V (I/O ports (A port) , I/O ports(B port) ; (3) Voltage range applied to any output in the high-impedance or power-off state: -0.5 to 4.6V; (4) Voltage range applied to any output in the high or low state: -0.5 to VCCA +0.5A (A port) , 0.5 VCCB +0.5V (B port) ; (5) Input clamp current IIK: -50mA ( VI<0) , Output clamp current: -50mA (VO<0) ; (6) Storage temperature range: -65 to 150°C.
Features
SN74AVCH2T45DCUR features: (1) Available in the Texas Instruments NanoStar and NanoFree Package; (2) Control Inputs VIH/VIL LevelsAreReference to VCCA Voltage; (3) Fully Configurable Dual-Rail Design Allows Each Port to Operate Over the Full 1.2-V to 3.6-V Power-Supply Range; (4) I/Os Are 4.6-V Tolerant; (5) Ioff Supports Partial-Power-Down Mode; (6) Bus Hold on Data Inputs Eliminates the Need for External Pull up/Pull down Resistors; (7) Latch-Up Performance Exceeds 100mA Per JESD78, ClassII; (8) ESD Protection Exceeds JESD22.
Diagrams

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![]() Translation - Voltage Levels DUALBDUALSplyBUS Transw/CnfgrbleVltg |
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(Hong Kong)










