Other Parts Discussed in Thread: TMUX1574, TS3A5018, SN74CBTLV3257, TMUX1575
|
Part Number |
SN3257-Q1 |
TMUX1574 |
TS3A5018 |
SN74CBTLV3257 |
|
Operating Supply Voltage |
1.5 to 5.5V |
1.5 to 5.5V |
1.65 to 3.6V |
2.3 to 3.6V |
|
1.8-V Compatible I/O |
Yes |
Yes |
No |
No |
|
RON (max) (Ω) |
4.5 |
4.5 |
32 |
60 |
|
Bandwidth (MHz) |
900 |
2000 |
300 |
-- |
|
Crosstalk (dB) |
-90 |
-90 |
-48 |
-- |
|
CON (typ) (pf) |
8 |
7.5 |
16 |
- |
|
Powered-off Protection |
Yes |
Yes |
No |
Yes |
|
Over-voltage Tolerant |
Yes |
Yes |
No |
No |
|
Temp Range (°C) |
-40 to 125°C |
-40 to 125°C |
-40 to 125°C |
-40 to 85°C |
|
Lead Package Options/ Dimensions |
TSSOP 5mm x 6.4mm, DYY 4.2mm x 2mm |
TSSOP 5mm x 6.4mm, DYY 4.2mm x 2mm |
TSSOP 5mm x 6.4mm, SOIC 9.9mm x 6mm ,SSOP4.9mm x 6mm, TVSOP 3.6mm x 6.4mm |
TSSOP 5mm x 6.4mm, SOIC 9.9mm x 6mm ,SSOP4.9mm x 6mm, TVSOP 3.6mm x 6.4mm |
|
Non-Leaded Package Options |
N/A |
UQFN 2.6mm x 1.8mm |
UQFN 2.6mm x 1.8mm, VQFN 4mm x 3.5mm |
UQFN 2.6mm x 1.8mm, VQFN 4mm x 3.5mm |
|
Comments |
AEC-Q100 qualified |
Not AEC-Q100 qualified |
Not AEC-Q100 qualified |
Not AEC-Q100 qualified |
|
Fail Safe Logic |
Yes |
Yes |
No |
No |
What are the differences Between the 3257 switches?
Here is a comparison table between TI’s most popular Low Voltage SPDT four channel devices (2:1 4 channel). These devices are all pin to pin(p2p) drop in replacements, but have slight differences that are important in the decision-making process of which multiplexer to use in a particular application.
Some of the main differences in these devices are summarized below.
The SN3257-Q1 is the only Automotive qualified device on this list and can be used to switch low voltage CAN signals.
The SN74CBTLV3257 and TS3A5018 both have 6 package options while the TMUX1574 has 3 options and SN3257 has 2 options
The TMUX1574 also supports beyond supply operation powered which means from 1.5 V to 5.5 V, the valid signal path input/output voltage ranges from GND to VDD x 2, with a maximum input/output voltage of 5.5 V. (For example, if the TMUX1574 is powered at 1.5V, it can pass signals ranging from 0 V to 3 V)
In Addition the TMUX1575 is an alternate of TMUX1574 with inverted logic control, available in WCSP package(60% smaller than UQFN Package) and has 1.2v logic support