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The SN74CB3Q3125 device is a high-bandwidth FET bus switch that uses a charge pump to elevate the gate voltage of the pass transistor, thus providing a low and flat ON-state resistance (ron). The low and flat ON-state resistance allows for minimal propagation delay and supports rail-to-rail switching on the data input/output (I/O) ports. The SN74CB3Q3125 device also features low data I/O capacitance to minimize capacitive loading and signal distortion on the data bus.
PART NUMBER | PACKAGE | BODY SIZE (NOM) |
---|---|---|
SN74CB3Q3125 | VQFN (14) | 3.50 mm × 3.50 mm |
SSOP (16) | 4.90 mm × 3.90 mm | |
TSSOP (16) | 5.00 mm × 4.40 mm | |
TVSOP (16) | 4.40 mm × 3.60 mm |
Changes from B Revision (March 2005) to C Revision
PIN | I/O | DESCRIPTION | ||
---|---|---|---|---|
NAME | DGV, PW, RGY | DBQ | ||
1OE | 1 | 2 | I | Output Enable (Active Low) |
1A | 2 | 3 | I/O | Channel 1A I/O 1A |
1B | 3 | 4 | I/O | Channel 1B I/O 1B |
2OE | 4 | 5 | I | Output Enable (Active Low) |
2A | 5 | 6 | I/O | Channel 2A I/O 2A |
2B | 6 | 7 | I/O | Channel 2B I/O 2B |
GND | 7 | 8 | — | Ground |
3B | 8 | 10 | I/O | Channel 3B I/O 3B |
3A | 9 | 11 | I/O | Channel 3A I/O 3B |
3OE | 10 | 12 | I | Output Enable (Active Low) |
4B | 11 | 13 | I/O | Channel 4B I/O 4B |
4A | 12 | 14 | I/O | Channel 4A I/O 4B |
4OE | 13 | 15 | I | Output Enable (Active Low) |
NC | — | 1, 9 | — | No Connect |
VCC | 14 | 16 | — | Power |