The HEF4104B is a quadruple low-voltage to high-voltage translator with 3-state outputs, providing the capability of interfacing low-voltage circuits to high-voltage circuits, such as low-voltage LOCMOS and TTL to high-voltage LOCMOS.
The HEF4104B is a quadruple low‑to‑high voltage translator that provides four data inputs and four data outputs with 3‑state capability, allowing interfacing of low‑voltage logic (e.g., TTL, LOCMOS) to high‑voltage circuits. It uses a common negative supply (Vss) and separate positive supplies for inputs (Vpp1) and outputs (Vppo), with Vpp1 required to be less than or equal to Vppo.
The device is offered in three package types: 16‑lead DIL plastic (SOT38‑1), 16‑lead DIL ceramic (SOT74), and 16‑lead SO plastic (SOT109‑1). Electrical characteristics include typical propagation delays of 80 ns (high‑to‑low) and 62 ns (low‑to‑high) and an input current limit of 10 mA per pin.
| Number of channels | Quadruple (4) |
|---|---|
| Output type | 3‑state outputs |
| Maximum input current per pin | 10 mA |
| Package – plastic DIL | 16‑lead DIL (SOT38‑1) |
| Package – plastic SO | 16‑lead SO (SOT109‑1) |
It translates low‑voltage signals to high‑voltage levels and provides 3‑state outputs for each channel.
The device has four data inputs (I0‑I3) and four data outputs (O0‑O3) plus complementary outputs.
Each input pin must be limited to a maximum of 10 mA.