SFFS925 July 2024 TMUX1308A , TMUX1308A-Q1 , TMUX1309A , TMUX1309A-Q1
4.1 TMUX1308A-Q1 TSSOP Package
Figure 4-1 shows the TMUX1308A-Q1 pin diagram for the TSSOP package. For a detailed description of the device pins, see the Pin Configuration and Functions section in the TMUX1308A-Q1 data sheet.
Figure 4-1 Pin Diagram (TSSOP) PackageTable 4-2 Pin FMA for Device Pins Short-Circuited to Ground
| Pin Name | Pin No. | Description of Potential Failure Effects | Failure Effect Class |
|---|---|---|---|
| S4 | 1 | Corruption of the signal passed onto the D pin. If there is no limiting resistor in the switch path, then device damage is possible. | A |
| S6 | 2 | Corruption of the signal passed onto the D pin. If there is no limiting resistor in the switch path, then device damage is possible. | A |
| D | 3 | Corruption of the signal passed onto the S pins. If there is no limiting resistor in the switch path, then device damage is possible. | A |
| S7 | 4 | Corruption of the signal passed onto the D pin. If there is no limiting resistor in the switch path, then device damage is possible. | A |
| S5 | 5 | Corruption of the signal passed onto the D pin. If there is no limiting resistor in the switch path, then device damage is possible. | A |
| EN | 6 | EN stuck low. Can no longer deactivate the device without power down. | B |
| NC | 7 | No effect, unconnected pin. | D |
| GND | 8 | No effect, normal operation. | D |
| A2 | 9 | Address stuck low. Cannot control switch states. | B |
| A1 | 10 | Address stuck low. Cannot control switch states. | B |
| A0 | 11 | Address stuck low. Cannot control switch states. | B |
| S3 | 12 | Corruption of the signal passed onto the D pin. If there is no limiting resistor in the switch path, then device damage is possible. | A |
| S0 | 13 | Corruption of the signal passed onto the D pin. If there is no limiting resistor in the switch path, then device damage is possible. | A |
| S1 | 14 | Corruption of the signal passed onto the D pin. If there is no limiting resistor in the switch path, then device damage is possible. | A |
| S2 | 15 | Corruption of the signal passed onto the D pin. If there is no limiting resistor in the switch path, then device damage is possible. | A |
| VDD | 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 plausible. | A |
Table 4-3 Pin FMA for Device Pins Open-Circuited
| Pin Name | Pin No. | Description of Potential Failure Effects | Failure Effect Class |
|---|---|---|---|
| S4 | 1 | Corruption of the signal passed onto the D pin. | B |
| S6 | 2 | Corruption of the signal passed onto the D pin. | B |
| D | 3 | Corruption of the signal passed onto the S pins. | B |
| S7 | 4 | Corruption of the signal passed onto the D pin. | B |
| S5 | 5 | Corruption of the signal passed onto the D pin. | B |
| EN | 6 | Control of the EN pin is lost. Cannot deactivate switch. Defaults to switches deactivated. | B |
| NC | 7 | No effect, unconnected pin. | D |
| 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 |
| A2 | 9 | Control of the address pin is lost. Cannot control switch. | B |
| A1 | 10 | Control of the address pin is lost. Cannot control switch. | B |
| A0 | 11 | Control of the address pin is lost. Cannot control switch. | B |
| S3 | 12 | Corruption of the signal passed onto the D pin. | B |
| S0 | 13 | Corruption of the signal passed onto the D pin. | B |
| S1 | 14 | Corruption of the signal passed onto the D pin. | B |
| S2 | 15 | Corruption of the signal passed onto the D pin. | B |
| VDD | 16 | Device is not powered. Device is not functional. | B |
Table 4-4 Pin FMA for Device Pins Short-Circuited to Adjacent Pin
| Pin Name | Pin No. | Shorted to | Description of Potential Failure Effects | Failure Effect Class |
|---|---|---|---|---|
| S4 | 1 | S6 | Possible corruption of the signal passed onto the D pin. | B |
| S6 | 2 | D | Possible corruption of the signal passed onto the SX and D pin. | B |
| D | 3 | S7 | Possible corruption of the signal passed onto the SX and D pin. | B |
| S7 | 4 | S5 | Possible corruption of the signal passed onto the D pin. | B |
| S5 | 5 | EN | Possible corruption of the signal passed onto the D pin. Switch state is undefined. | B |
| EN | 6 | NC | No connect pin electrically floating, no effect. | D |
| NC | 7 | GND | No connect pin electrically floating, no effect. | D |
| GND | 8 | A2 | Not considered, corner pin. | D |
| A2 | 9 | A1 | Control of the switch state is lost. | B |
| A1 | 10 | A0 | Control of the switch state is lost. | B |
| A0 | 11 | S3 | Possible corruption of the signal passed onto the D pin. Control of the switch state is lost. | B |
| S3 | 12 | S0 | Possible corruption of the signal passed onto the D pin. | B |
| S0 | 13 | S1 | Possible corruption of the signal passed onto the D pin. | B |
| S1 | 14 | S2 | Possible corruption of the signal passed onto the D pin. | B |
| S2 | 15 | VDD | Corruption of the signal passed onto the D pin. If there is no limiting resistor in the switch path, then device damage is possible. | A |
| VDD | 16 | S4 | Not considered, corner pin. | D |
Table 4-5 Pin FMA for Device Pins Short-Circuited to VDD
| Pin Name | Pin No. | Description of Potential Failure Effects | Failure Effect Class |
|---|---|---|---|
| S4 | 1 | Corruption of the signal passed onto the D pin. If there is no limiting resistor in the switch path, then device damage is possible. | A |
| S6 | 2 | Corruption of the signal passed onto the D pin. If there is no limiting resistor in the switch path, then device damage is possible. | A |
| D | 3 | Corruption of the signal passed onto the S pins. If there is no limiting resistor in the switch path, then device damage is possible. | A |
| S7 | 4 | Corruption of the signal passed onto the D pin. If there is no limiting resistor in the switch path, then device damage is possible. | A |
| S5 | 5 | Corruption of the signal passed onto the D pin. If there is no limiting resistor in the switch path, then device damage is possible. | A |
| EN | 6 | EN stuck high. Can no longer enable the device. | B |
| NC | 7 | No effect, unconnected pin. | D |
| 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 plausible. | A |
| A2 | 9 | Address stuck high. Cannot control switch states. | B |
| A1 | 10 | Address stuck high. Cannot control switch states. | B |
| A0 | 11 | Address stuck high. Cannot control switch states. | B |
| S3 | 12 | Corruption of the signal passed onto the D pin. If there is no limiting resistor in the switch path, then device damage is possible. | A |
| S0 | 13 | Corruption of the signal passed onto the D pin. If there is no limiting resistor in the switch path, then device damage is possible. | A |
| S1 | 14 | Corruption of the signal passed onto the D pin. If there is no limiting resistor in the switch path, then device damage is possible. | A |
| S2 | 15 | Corruption of the signal passed onto the D pin. If there is no limiting resistor in the switch path, then device damage is possible. | A |
| VDD | 16 | No effect, normal operation. | D |