74CBTLV3126

4-bit bus switch

The 74CBTLV3126 provides a 4-bit high-speed bus switch with separate output enable inputs (1OE to 4OE). The low on-state resistance of the switch allows connections to be made with minimal propagation delay. The switch is disabled (high-impedance OFF-state) when the output enable (nOE) input is LOW.

To ensure the high-impedance OFF-state during power-up or power-down, nOE should be tied to the GND through a pull-down resistor. The minimum value of the resistor is determined by the current-sinking capability of the driver.

Schmitt trigger action at control input makes the circuit tolerant to slower input rise and fall times across the entire V_CC range from 2.3 V to 3.6 V.

This device is fully specified for partial power-down applications using I_OFF. The I_OFF circuitry disables the output, preventing the damaging backflow current through the device when it is powered down.

Features and benefits

Supply voltage range from 2.3 V to 3.6 V
Standard '126'-type pinout
High noise immunity
Complies with JEDEC standard:
- JESD8-5 (2.3 V to 2.7 V)
- JESD8-B/JESD36 (2.7 V to 3.6 V)
ESD protection:
- HBM JESD22-A114F exceeds 2000 V
- MM JESD22-A115-A exceeds 200 V
- CDM AEC-Q100-011 revision B exceeds 1000 V
5 Ω switch connection between two ports
Rail to rail switching on data I/O ports
CMOS low power consumption
Latch-up performance exceeds 250 mA per JESD78B Class I level A
I_OFF circuitry provides partial Power-down mode operation
Multiple package options
Specified from -40 °C to +85 °C and -40 °C to +125 °C

Parametrics

Type number	Product status	V_CC (V)	V_PASS (V)	Logic switching levels	R_ON (Ω)	f_(-3dB) (MHz)	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
74CBTLV3126BQ	Production	2.3 - 3.6	3.3	CMOS/LVTTL	7	400	4	0.2	very low	-40~125	107	21.3	75	DHVQFN14
74CBTLV3126DS	Production	2.3 - 3.6	3.3	CMOS/LVTTL	7	400	4	0.2	very low	-40~125	148	42.0	-	SSOP16
74CBTLV3126PW	Production	2.3 - 3.6	3.3	CMOS/LVTTL	7	400	4	0.2	very low	-40~125	141	8.0	68	TSSOP14

Package

Type number	Package	Package information	Reflow-/Wave soldering	Packing	Status	Marking	Orderable part number, (Ordering code (12NC))
74CBTLV3126BQ	DHVQFN14 (SOT762-1)	SOT762-1		SOT762-1_115	Active	V3126	74CBTLV3126BQ,115 ( 9352 893 42115 )
74CBTLV3126DS	SSOP16 (SOT519-1)	SOT519-1	SSOP-TSSOP-VSO-REFLOW SSOP-TSSOP-VSO-WAVE	SOT519-1_118	Active	TLV3126	74CBTLV3126DS,118 ( 9352 893 43118 )
74CBTLV3126PW	TSSOP14 (SOT402-1)	SOT402-1	SSOP-TSSOP-VSO-WAVE	SOT402-1_118	Active	TLV3126	74CBTLV3126PW,118 ( 9352 893 44118 )

Discontinuation information

Type number	Orderable part number, (Ordering code (12NC))	Last time buy date	Last time delivery date	Replacement product	Status	Comments
74CBTLV3126DS	935289343112
74CBTLV3126PW	935289344112

Environmental information

Type number	Orderable part number	Chemical content	Leadfree conversion date
74CBTLV3126BQ	74CBTLV3126BQ,115	74CBTLV3126BQ	Always Pb-free
74CBTLV3126DS	74CBTLV3126DS,118	74CBTLV3126DS	Always Pb-free
74CBTLV3126PW	74CBTLV3126PW,118	74CBTLV3126PW	Always Pb-free

Quality and reliability disclaimer

Documentation (9)

File name	Title	Type	Date
74CBTLV3126	4-bit bus switch	Data sheet	2023-02-16
cbtlv3126	74CBTLV3126 IBIS model	IBIS model	2015-02-22
Nexperia_Selection_guide_2023	Nexperia Selection Guide 2023	Selection guide	2023-05-10
SOT762-1	plastic, leadless dual in-line compatible thermal enhanced very thin quad flat package; 14 terminals; 0.5 mm pitch; 2.5 x 3 x 1 mm body	Package information	2023-04-05
SSOP-TSSOP-VSO-WAVE	Footprint for wave soldering	Wave soldering	2009-10-08
SOT402-1	plastic, thin shrink small outline package; 14 leads; 0.65 mm pitch; 5 mm x 4.4 mm x 1.2 mm body	Package information	2023-11-07
SSOP-TSSOP-VSO-WAVE	Footprint for wave soldering	Wave soldering	2009-10-08
SSOP-TSSOP-VSO-REFLOW	Footprint for reflow soldering	Reflow soldering	2009-10-08
SOT519-1	plastic, shrink small outline package; 16 leads; 0.635 mm pitch; 4.9 mm x 3.9 mm x 1.73 mm body	Package information	2022-06-20

Support

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Models

File name	Title	Type	Date
cbtlv3126	74CBTLV3126 IBIS model	IBIS model	2015-02-22

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