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SCDA023B April 2020 – January 2022 TMUX1308-Q1 , TMUX1309-Q1

4.4 TMUX1309-Q1 WQFN Package

The figure below shows the TMUX1309-Q1 pin diagram for the WQFN package. For a detailed description of the device pins please refer to the Pin Configuration and Functions section in the TMUX1308-Q1 and TMUX1309-Q1 data sheet.

Figure 4-6 Pin Diagram for TMUX1309-Q1 in WQFN Package

Table 4-14 Pin FMA for Device Pins Short-Circuited to Ground

Pin Name	Pin No.	Description of Potential Failure Effect(s)	Failure Effect Class
S0B	1	Corruption of signal passed onto the DB pin. If there is no limiting resistor in the switch path, then device damage is possible.	A
S2B	2	Corruption of signal passed onto the DB pin. If there is no limiting resistor in the switch path, then device damage is possible.	A
DB	3	Corruption of signal passed onto the SxB pins. If there is no limiting resistor in the switch path, then device damage is possible.	A
S3B	4	Corruption of signal passed onto the DB pin. If there is no limiting resistor in the switch path, then device damage is possible.	A
S1B	5	Corruption of signal passed onto the DB 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 disable the device without power down.	B
N.C.	7	No effect, unconnected pin.	D
GND	8	No effect, normal operation.	D
A1	9	Address stuck low. Cannot control switch states.	B
A0	10	Address stuck low. Cannot control switch states.	B
S3A	11	Corruption of signal passed onto the DA pin. If there is no limiting resistor in the switch path, then device damage is possible.	A
S0A	12	Corruption of signal passed onto the DA pin. If there is no limiting resistor in the switch path, then device damage is possible.	A
DA	13	Corruption of signal passed onto the SxA pins. If there is no limiting resistor in the switch path, then device damage is possible.	A
S1A	14	Corruption of signal passed onto the DA pin. If there is no limiting resistor in the switch path, then device damage is possible.	A
S2A	15	Corruption of signal passed onto the DA pin. If there is no limiting resistor in the switch path, then device damage is possible.	A
VDD	16	Device is unpowered. Device is not functional. Observe that the absolute maximum ratings for all pins of the device are met, otherwise device damage is possible.	A
Thermal pad	—	No effect, normal operation.	D

Table 4-15 Pin FMA for Device Pins Open-Circuited

Pin Name	Pin No.	Description of potential failure effect(s)	Failure effect class
S0B	1	Corruption of signal passed onto the DB pin.	B
S2B	2	Corruption of signal passed onto the DB pin.	B
DB	3	Corruption of signal passed onto the SxB pins.	B
S3B	4	Corruption of signal passed onto the DB pin.	B
S1B	5	Corruption of signal passed onto the DB pin.	B
EN	6	Loss of control of EN pin. Cannot disable switch. Will default to switches disabled.	B
N.C.	7	No effect, unconnected pin.	D
GND	8	Device is unpowered. Device is not functional. Observe that the absolute maximum ratings for all pins of the device are met, otherwise device damage is possible.	A
A1	9	Loss of control of address pin. Cannot control switch.	B
A0	10	Loss of control of address pin. Cannot control switch.	B
S3A	11	Corruption of signal passed onto the DA pin.	B
S0A	12	Corruption of signal passed onto the DA pin.	B
DA	13	Corruption of signal passed onto the SxA pin.	B
S1A	14	Corruption of signal passed onto the DA pin.	B
S2A	15	Corruption of signal passed onto the DA pin.	B
VDD	16	Device is unpowered. Device is not functional.	B
Thermal pad	—	No effect, normal operation.	D

Table 4-16 Pin FMA for Device Pins Short-Circuited to Adjacent Pin

Pin Name	Pin No.	Shorted to	Description of potential failure effect(s)	Failure effect class
S0B	1	S2B	Possible corruption of signal passed onto the DB pin.	B
S2B	2	DB	Possible corruption of signal passed onto the SxB and DB pin.	B
DB	3	S3B	Possible corruption of signal passed onto the SxB and DB pin.	B
S3B	4	S1B	Possible corruption of signal passed onto the DB pin.	B
S1B	5	EN	Possible corruption of signal passed onto the DB pin. Switch state will be undefined.	B
EN	6	N.C.	No connect pin electrically floating, no effect.	D
N.C.	7	GND	No connect pin electrically floating, no effect.	D
GND	8	A1	Not considered, corner pin.	D
A1	9	A0	Control of switch state is lost.	B
A0	10	S3A	Possible corruption of signal passed onto the DA pin. Control of switch state is lost.	B
S3A	11	S0A	Possible corruption of signal passed onto the DA pin.	B
S0A	12	DA	Possible corruption of signal passed onto the SxA and DA pin.	B
DA	13	S1A	Possible corruption of signal passed onto the SxA and DA pin.	B
S1A	14	S2A	Possible corruption of signal passed onto the DA pin.	B
S2A	15	VDD	Corruption of signal passed onto the D pin. If there is no limiting resistor in the switch path, then device damage is possible.	A
VDD	16	S0B	Not considered, corner pin.	D

Table 4-17 Pin FMA for Device Pins Short-Circuited to VDD

Pin Name	Pin No.	Description of potential failure effect(s)	Failure effect class
S0B	1	Corruption of signal passed onto the DB pin. If there is no limiting resistor in the switch path, then device damage is possible.	A
S2B	2	Corruption of signal passed onto the DB pin. If there is no limiting resistor in the switch path, then device damage is possible.	A
DB	3	Corruption of signal passed onto the SxB pins. If there is no limiting resistor in the switch path, then device damage is possible.	A
S3B	4	Corruption of signal passed onto the DB pin. If there is no limiting resistor in the switch path, then device damage is possible.	A
S1B	5	Corruption of signal passed onto the DB 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
N.C.	7	No effect, unconnected pin.	D
GND	8	Device is unpowered. Device is not functional. Observe that the absolute maximum ratings for all pins of the device are met, otherwise device damage may be plausible.	A
A1	9	Address stuck high. Cannot control switch states.	B
A0	10	Address stuck high. Cannot control switch states.	B
S3A	11	Corruption of signal passed onto the DA pin. If there is no limiting resistor in the switch path, then device damage is possible.	A
S0A	12	Corruption of signal passed onto the DA pin. If there is no limiting resistor in the switch path, then device damage is possible.	A
DA	13	Corruption of signal passed onto the SxA pins. If there is no limiting resistor in the switch path, then device damage is possible.	A
S1A	14	Corruption of signal passed onto the DA pin. If there is no limiting resistor in the switch path, then device damage is possible.	A
S2A	15	Corruption of signal passed onto the DA pin. If there is no limiting resistor in the switch path, then device damage is possible.	A
VDD	16	No effect, normal operation.	D
Thermal pad	—	No connect pin electrically floating, no effect.	D