74AVCH2T45DC: Dual-bit, dual-supply voltage level translator/transceiver; 3-state
The 74AVCH2T45 is a dual bit, dual supply transceiver that enables bidirectional level translation. It features two data input-output ports (nA and nB), a direction control input (DIR) and dual supply pins (VCC(A) and VCC(B)). Both VCC(A) and VCC(B) can be supplied at any voltage between 0.8 V and 3.6 V making the device suitable for translating between any of the low voltage nodes (0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V and 3.3 V). Pins nA and DIR are referenced to VCC(A) and pins nB are referenced to VCC(B). A HIGH on DIR allows transmission from nA to nB and a LOW on DIR allows transmission from nB to nA.
The device is fully specified for partial power-down applications using IOFF. The IOFF circuitry disables the output, preventing any damaging backflow current through the device when it is powered down. In suspend mode when either VCC(A) or VCC(B) are at GND level, both A and B are in the high-impedance OFF-state.
The 74AVCH2T45 has active bus hold circuitry which is provided to hold unused or floating data inputs at a valid logic level. This feature eliminates the need for external pull-up or pull-down resistors.
74AVCH2T45DC: Product Block Diagram
Outline 3d SOT765-1
Data Sheets (1)
Application Notes (3)
Brochures (2)
Selector Guides (2)
Package Information (1)
Packing (1)
IBIS Model
Ordering Information
| Product | Status | Family | Function | VCC(A) (V) | VCC(B) (V) | Description | Logic switching levels | Package version | Output drive capability (mA) | tpd (ns) | No of bits | Power dissipation considerations | Tamb (Cel) | Rth(j-a) (K/W) | Ψth(j-top) (K/W) | Rth(j-c) (K/W) | Package name | No of pins |
|---|
| 74AVCH2T45DC | Active | AVC(M) | Level shifters/translators | 0.8 - 3.6 | 0.8 - 3.6 | dual-bit dual-supply voltage translating transceiver with bus hold (3-state) | CMOS/LVTTL | SOT765-1 | +/- 12 | 2.1 | 2 | very low | -40~125 | 205 | 35.3 | 115 | VSSOP8 | 8 |
Package Information
| Product ID | Package Description | Outline Version | Reflow/Wave Soldering | Packing | Product Status | Part NumberOrdering code(12NC) | Marking | Chemical Content | RoHS / Pb Free / RHF | LeadFree Conversion Date | MSL | MSL LF |
|---|
| 74AVCH2T45DC | | SOT765-1 | | Reel 7" Q3/T4, Reverse | Active | 74AVCH2T45DC,125
(9352 837 21125) | K45 | 74AVCH2T45DC |    | Always Pb-free | 1 | 1 |
