HEF4043BP,652

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1. Describe

The HEF4043BP is a quad R/S latch with three-state outputs and a common output enable input (OE). Each latch has an active-high set input (1S to 4S), an active-high reset input (1R to 4R), and an active-high tri-state output (1Q to 4Q). When OE is high, the latched output (nQ) is determined by the nR and nS inputs as shown in Table 3. When OE is low, the latched output is in a high-impedance shutdown state. OE Does not affect the state of the latch. A high-impedance off-state feature allows the outputs to use a common bus. It operates over the recommended 3 V to 15 V VDD supply range, referenced to V SS (typically ground). Unused inputs must be connected to V DD, V SS or other inputs.

2. Features

    1. Fully static operation

    2. 5 V, 10 V, and 15 V parameter ratings

    3. Normalized symmetrical output characteristics

    4. Specify from - 40 °C to +85 °C

    5. Complies with JEDEC standard JESD 13-B

3. Application

    1. Four-bit storage with output enable

4. Pin configuration

5. Pin Description

6. Product description