 
74CB3Q3257-Q100
4-bit 1-of-2 FET multiplexer/demultiplexer with charge pump
The 74CB3Q3257-Q100 is a quad high-bandwidth single-pole, double-throw FET bus switch. The device features one select input (S) and one output enable input (OE). The switch is disabled when the OE input is HIGH. An internal charge-pump increases the gate voltage of the NMOS pass transistor. The result is improved RON and RON(flat) performance and the ability to switch 5 V signals when VCC = 3.3 V.
This product has been qualified to the Automotive Electronics Council (AEC) standard Q100 (Grade 3) and is suitable for use in automotive applications.
Features and benefits
- Automotive product qualification in accordance with AEC-Q100 (Grade 3) - Specified from -40 °C to +85 °C 
 
- Wide supply voltage range from 2.3 V to 3.6 V 
- Overvoltage switching on switch ports: - 0 V to 5 V switching with VCC = 2.5 V 
- 0 V to 5 V switching with VCC = 3.3 V 
 
- 4 Ω (typical) ON resistance 
- 3.5 pF (typical) OFF-state capacitance 
- High bandwidth 0.5 GHz (maximum) 
- Low input/output capacitance minimizes loading and signal distortion 
- Fast switching frequency fmax = 20 MHz (maximum) 
- Low power consumption ICC = 0.4 mA (typical) 
- Control inputs can be driven by TTL or 5 V/3.3 V CMOS outputs 
- IOFF supports partial power-down mode operation 
- Latch-up performance exceeds 100 mA per JESD 78E Class II Level A 
- ESD protection: - HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V 
- CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V 
 
Applications
- Communication infrastructure 
- Bus isolation 
- Memory interleaving 
- Sensor multiplexing 
Parametrics
| Type number | VCC (V) | RON (Ω) | Logic switching levels | tpd (ns) | Power dissipation considerations | Tamb (°C) | Rth(j-a) (K/W) | Ψth(j-top) (K/W) | Rth(j-c) (K/W) | Package name | 
|---|---|---|---|---|---|---|---|---|---|---|
| 74CB3Q3257PW-Q100 | 2.3 - 3.6 | 4 | CMOS/LVTTL | 0.2 | very low | -40~85 | 116 | 2.44 | 44.3 | TSSOP16 | 
Package
| Type number | Orderable part number, (Ordering code (12NC)) | Status | Marking | Package | Package information | Reflow-/Wave soldering | Packing | 
|---|---|---|---|---|---|---|---|
| 74CB3Q3257PW-Q100 | 74CB3Q3257PW-Q100J (935690808118) | Active | B3Q3257 |   TSSOP16 (SOT403-1) | SOT403-1 | SSOP-TSSOP-VSO-WAVE | SOT403-1_118 | 
Environmental information
| Type number | Orderable part number | Chemical content | RoHS | RHF-indicator | 
|---|---|---|---|---|
| 74CB3Q3257PW-Q100 | 74CB3Q3257PW-Q100J | 74CB3Q3257PW-Q100 |  |   | 
Documentation (7)
| File name | Title | Type | Date | 
|---|---|---|---|
| 74CB3Q3257_Q100 | 4-bit 1-of-2 FET multiplexer/demultiplexer with charge pump | Data sheet | 2024-04-11 | 
| AN90063 | Questions about package outline drawings | Application note | 2025-10-22 | 
| SOT403-1 | 3D model for products with SOT403-1 package | Design support | 2020-01-22 | 
| Nexperia_package_poster | Nexperia package poster | Leaflet | 2020-05-15 | 
| TSSOP16_SOT403-1_mk | plastic, thin shrink small outline package; 16 leads; 0.65 mm pitch; 5 mm x 4.4 mm x 1.1 mm body | Marcom graphics | 2017-01-28 | 
| SOT403-1 | plastic, thin shrink small outline package; 16 leads; 5 mm x 4.4 mm x 1.2 mm body | Package information | 2023-11-08 | 
| SSOP-TSSOP-VSO-WAVE | Footprint for wave soldering | Wave soldering | 2009-10-08 | 
Support
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Models
| File name | Title | Type | Date | 
|---|---|---|---|
| SOT403-1 | 3D model for products with SOT403-1 package | Design support | 2020-01-22 | 
Ordering, pricing & availability
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