SFFS924 August   2024 SN74LV4051A-Q1 , SN74LV4052A-Q1 , SN74LV4053A-Q1

 

  1.   1
  2.   Trademarks
  3. 1Overview
  4. 2Functional Safety Failure In Time (FIT) Rates
    1. 2.1 TSSOP Package
    2. 2.2 SOIC Package
    3. 2.3 SOT-23-THIN Package
  5. 3Failure Mode Distribution (FMD)
  6. 4Pin Failure Mode Analysis (Pin FMA)
    1. 4.1 SN74LV4051A-Q1: TSSOP, SOIC, and SOT-23-THIN Packages
    2. 4.2 SN74LV4052A-Q1: TSSOP and SOT-23-THIN Packages
    3. 4.3 SN74LV4053A-Q1: TSSOP and SOT-23-THIN Packages

3 Failure Mode Distribution (FMD)

The failure mode distribution estimation for the SN74LV405xA-Q1 in Table 3-1 comes from the combination of common failure modes listed in standards such as IEC 61508 and ISO 26262, the ratio of sub-circuit function size and complexity, and from best engineering judgment.

The failure modes listed in this section reflect random failure events and do not include failures resulting from misuse or overstress.

Table 3-1 Die Failure Modes and Distribution
Die Failure Modes Failure Mode Distribution (%)
MUX no output (HIZ) 5
MUX channel stuck on 5
MUX channel stuck off 45
MUX functional out of specification voltage or timing 45