74CB3Q3257BQ

4-bit 1-of-2 FET multiplexer/demultiplexer with charge pump

The 74CB3Q3257 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 R_ON and R_ON(flat) performance and the ability to switch 5 V signals when V_CC = 3.3 V.

4-bit 1-of-2 FET multiplexer/demultiplexer with charge pump

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*** Authorized resellers for overstock, mature, and discontinued products which are warranted for reliability by the reseller, no longer by Nexperia

Features and benefits

Wide supply voltage range from 2.3 V to 3.6 V
- 0 V to 5 V switching with V_CC = 2.5 V
- 0 V to 5 V switching with V_CC = 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 f_max = 20 MHz (maximum)
Low power consumption I_CC = 0.4 mA (typical)
Control inputs can be driven by TTL or 5 V/3.3 V CMOS outputs
I_OFF supports partial power-down mode operation
Latch-up performance exceeds 100 mA per JESD78EClassIILevelA
ESD protection:
- HBM ANSI/ESDA/JEDEC JS-001-2012 Class 2 exceeds 2 kV
- CDM JESD22-C101F exceeds 1000 V
Specified from -40 °C to +85 °C

Applications

Communication infrastructure
Bus isolation
Memory interleaving
Sensor multiplexing

Parametrics

Type number	Product status	V_CC (V)	V_PASS (V)	Logic switching levels	R_ON (Ω)	Nr of bits	t_pd (ns)	Power dissipation considerations	T_amb (°C)	R_th(j-a) (K/W)	Ψ_th(j-top) (K/W)	R_th(j-c) (K/W)	Package name
74CB3Q3257BQ	Production	2.3 - 3.6	Vcc	CMOS/LVTTL	4	4	0.2	very low	-40~85	84	7.3	51.5	DHVQFN16

Package

Type number	Orderable part number, (Ordering code (12NC))	Status	Marking	Package	Package information	Reflow-/Wave soldering	Packing
74CB3Q3257BQ	74CB3Q3257BQX ( 9353 394 58115 )	Active	3Q3257	DHVQFN16 (SOT763-1)	SOT763-1		Reel 7” Q1/T1 or Q2/T3

Quality, reliability & chemical content

Type number	Orderable part number	Chemical content	RoHS / RHF	MSL	MSL leadfree
74CB3Q3257BQ	74CB3Q3257BQX	74CB3Q3257BQ		1	1

Quality and reliability disclaimer

Series

74CB3Q3257 - 4-bit 1-of-2 FET multiplexer/demultiplexer with charge pump

Documentation (4)

File name	Title	Type	Date
74CB3Q3257	4-bit 1-of-2 FET multiplexer/demultiplexer with charge pump	Data sheet	2017-08-23
cb3q3257	IBIS model of 74CB3Q3257	IBIS model	2017-08-24
Nexperia_document_leaflet_CB3Q_switches_201803	CB3Q Bus Switches	Leaflet	2018-04-06
74CB3Q3257BQ_Nexperia_Product_Reliability	74CB3Q3257BQ Nexperia Product Reliability	Quality document	2022-05-04

Support

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Models

File name	Title	Type	Date
cb3q3257	IBIS model of 74CB3Q3257	IBIS model	2017-08-24

Ordering, pricing & availability

Type number	Orderable part number	Ordering code (12NC)	Packing	Packing quantity	Buy online
74CB3Q3257BQ	74CB3Q3257BQX	935339458115	Reel 7” Q1/T1 or Q2/T3	-	Order product

Sample

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