1. General description

The HEF4043B-Q100 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 VDD.

This product has been qualified to the Automotive Electronics Council (AEC) standard Q100

(Grade 3) and is suitable for use in automotive applications.

2. Features and benefits

• Automotive product qualification in accordance with AEC-Q100 (Grade 3)

• Specified from -40 °C to +85 °C

• 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

3. Applications

• Four-bit storage with output enable