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

4.2 SN74LV4052A-Q1: TSSOP and SOT-23-THIN Packages

Figure 4-3 and Figure 4-4 show the SN74LV405xA-Q1 pin diagrams for the TSSOP and SOT-23-THIN packages. For a detailed description of the device pins, see the Pin Configuration and Functions section in the SN74LV405xA-Q1 data sheet.

SN74LV405xA-Q1 Pin Diagram TSSOP PackageFigure 4-3 Pin Diagram TSSOP Package
SN74LV405xA-Q1 Pin Diagram SOT-23-THIN PackageFigure 4-4 Pin Diagram SOT-23-THIN Package
Table 4-6 Pin FMA for Device Pins Short-Circuited to Ground
Pin NamePin No.Description of Potential Failure EffectsFailure Effect Class
2Y0 1 Corruption of signal passed onto the 2-COM pin. If there is no limiting resistor in the switch path, then device damage is possible. A
2Y2 2 Corruption of signal passed onto the 2-COM pin. If there is no limiting resistor in the switch path, then device damage is possible. A
2-COM 3 Corruption of signal passed onto the 2Yx pins. If there is no limiting resistor in the switch path, then device damage is possible. A
2Y3 4 Corruption of signal passed onto the 2-COM pin. If there is no limiting resistor in the switch path, then device damage is possible. A
2Y1 5 Corruption of signal passed onto the 2-COM pin. If there is no limiting resistor in the switch path, then device damage is possible. A
INH 6 INH stuck low. Can no longer disable the device without power down. B
GND 7 No effect, normal operation. D
GND 8 No effect, normal operation. D
B 9 Address stuck low. Cannot control switch. B
A 10 Address stuck low. Cannot control switch. B
1Y3 11 Corruption of signal passed onto the 1-COM pin. If there is no limiting resistor in the switch path, then device damage is possible. A
1Y0 12 Corruption of signal passed onto the 1-COM pin. If there is no limiting resistor in the switch path, then device damage is possible. A
1-COM 13 Corruption of signal passed onto the 1Yx pins. If there is no limiting resistor in the switch path, then device damage is possible. A
1Y1 14 Corruption of signal passed onto the 1-COM pin. If there is no limiting resistor in the switch path, then device damage is possible. A
1Y2 15 Corruption of signal passed onto the 1-COM pin. If there is no limiting resistor in the switch path, then device damage is possible. A
Vcc 16 Device is not powered. Device is not functional. Observe that the absolute maximum ratings for all pins of the device are met, otherwise device damage is possible. A
Table 4-7 Pin FMA for Device Pins Open-Circuited
Pin NamePin No.Description of Potential Failure EffectsFailure Effect Class
2Y0 1 Corruption of the signal passed onto the 2-COM pin. B
2Y2 2 Corruption of the signal passed onto the 2-COM pin. B
2-COM 3 Corruption of the signal passed onto the 2Yx pins. B
2Y3 4 Corruption of the signal passed onto the 2-COM pin. B
2Y1 5 Corruption of the signal passed onto the 2-COM pin. B
INH 6 Loss of control of the INH pin. Cannot turn off the device. B
GND 7 Device not powered. Device not functional. Observe that the absolute maximum ratings for all pins of the device are met, otherwise device damage is possible. A
GND 8 Device not powered. Device not functional. Observe that the absolute maximum ratings for all pins of the device are met, otherwise device damage is possible. A
B 9 Control of the address pin is lost. Cannot control switch. B
A 10 Control of the address pin is lost. Cannot control switch. B
1Y3 11 Corruption of the signal passed onto the 1-COM pin. B
1Y0 12 Corruption of the signal passed onto the 1-COM pin. B
1-COM 13 Corruption of the signal passed onto the 1Yx pins. B
1Y1 14 Corruption of the signal passed onto the 1-COM pin. B
1Y2 15 Corruption of the signal passed onto the 1-COM pin. B
Vcc 16 Device is not powered. Device is not functional. B
Table 4-8 Pin FMA for Device Pins Short-Circuited to Adjacent Pin
Pin NamePin No.Shorted toDescription of Potential Failure EffectsFailure Effect Class
2Y0 1 2Y2 Possible corruption of the signal passed onto the 2-COM pin. B
2Y2 2 2-COM Possible corruption of the signal passed onto the 2Yx and 2-COM pin. B
2-COM 3 2Y3 Possible corruption of the signal passed onto the 2Yx and 2-COM pin. B
2Y3 4 2Y1 Possible corruption of the signal passed onto the 2-COM pin. B
2Y1 5 INH Possible corruption of the signal passed onto the 2-COM pin. Switch state is undefined. B
INH 6 GND Possible damage to device if the signal voltage is negative. Observe that the absolute maximum ratings for all pins of the device are met, otherwise device damage is possible. A
GND 7 GND Possible damage to device if the signal voltage is negative. Observe that the absolute maximum ratings for all pins of the device are met, otherwise device damage is possible. A
GND 8 B Not considered, corner pin. D
B 9 A Control of the address pin is lost. Cannot control switch. B
A 10 1Y3 Possible corruption of the signal passed onto the 1-COM pin. Control of the address pin is lost. Cannot control switch B
1Y3 11 1Y0 Possible corruption of the signal passed onto the 1-COM pin. B
1Y0 12 1-COM Possible corruption of the signal passed onto the 1Yx and 1-COM pin. B
1-COM 13 1Y1 Possible corruption of the signal passed onto the 1Yx and 1-COM pin. B
1Y1 14 1Y2 Possible corruption of the signal passed onto the 1-COM pin. B
1Y2 15 Vcc Corruption of the signal passed onto the 1-COM pin. If there is no limiting resistor in the switch path, then device damage is possible. A
Vcc 16 2Y0 Not considered, corner pin. D
Table 4-9 Pin FMA for Device Pins Short-Circuited to Vcc
Pin NamePin No.Description of Potential Failure EffectsFailure Effect Class
2Y0 1 Corruption of signal passed onto the 2-COM pin. If there is no limiting resistor in the switch path, then device damage is possible. A
2Y2 2 Corruption of signal passed onto the 2-COM pin. If there is no limiting resistor in the switch path, then device damage is possible. A
2-COM 3 Corruption of signal passed onto the 2Yx pin. If there is no limiting resistor in the switch path, then device damage is possible. A
2Y3 4 Corruption of signal passed onto the 2-COM pin. If there is no limiting resistor in the switch path, then device damage is possible. A
2Y1 5 Corruption of signal passed onto the 2-COM pin. If there is no limiting resistor in the switch path, then device damage is possible. A
INH 6 INH stuck high. Can no longer enable the device. B
GND 7 Device is not powered. Device is not functional. Observe that the absolute maximum ratings for all pins of the device are met, otherwise device damage is possible. A
GND 8 Device is not powered. Device is not functional. Observe that the absolute maximum ratings for all pins of the device are met, otherwise device damage is possible. A
B 9 Address stuck high. Cannot control switch. B
A 10 Address stuck high. Cannot control switch. B
1Y3 11 Corruption of signal passed onto the 1-COM pin. If there is no limiting resistor in the switch path, then device damage is possible. A
1Y0 12 Corruption of signal passed onto the 1-COM pin. If there is no limiting resistor in the switch path, then device damage is possible. A
1-COM 13 Corruption of signal passed onto the 1Yx pin. If there is no limiting resistor in the switch path, then device damage is possible. A
1Y1 14 Corruption of signal passed onto the 1-COM pin. If there is no limiting resistor in the switch path, then device damage is possible. A
1Y2 15 Corruption of signal passed onto the 1-COM pin. If there is no limiting resistor in the switch path, then device damage is possible. A
Vcc 16 No effect, normal operation. D