The HEF4043B is a quad R/S latch with 3-state outputs and common output enable input (OE). Each latch has set (nS), and reset (nR) inputs and a 3-state output (nQ). When OE is LOW, the latch outputs are in the high impedance OFF-state. OE does not affect the state of the latch. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of V_DD.

• Wide supply voltage range from 3.0 V to 15.0 V

• CMOS low power dissipation

• High noise immunity

• Fully static operation

• 5 V, 10 V, and 15 V parametric ratings

• Standardized symmetrical output characteristics

• Complies with JEDEC standard JESD 13-B

• ESD protection:

  • HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V

  • CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V

• Specified from -40 °C to +85 °C

• HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V

• CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V

• Four-bit storage with output enable