74CB3Q3125 Series

3.3-V, 1:1 (SPST), 4-channel FET bus switch

Catalog(4 parts)

Part	Package / Case	Package / Case▲▼	Package / Case▲▼	Circuit	Mounting Type	Supplier Device Package	Type	Operating Temperature▲▼	Operating Temperature▲▼	Voltage - Supply▲▼	Voltage - Supply▲▼	Independent Circuits▲▼	Voltage Supply Source	Package / Case▲▼
Texas Instruments SN74CB3Q3125PWRE4 Bus Switch 1 x 1:1 14-TSSOP	14-TSSOP	0.004394200164824724 m	0.004399999976158142 m	1 x 1:1	Surface Mount	14-TSSOP	Bus Switch	-40 °C	85 °C	3.5999999046325684 V	2.299999952316284 V	4 ul	Single Supply
Texas Instruments SN74CB3Q3125PW Bus Switch 1 x 1:1 14-TSSOP	14-TSSOP	0.004394200164824724 m	0.004399999976158142 m	1 x 1:1	Surface Mount	14-TSSOP	Bus Switch	-40 °C	85 °C	3.5999999046325684 V	2.299999952316284 V	4 ul	Single Supply
Texas Instruments SN74CB3Q3125PWRG4 Bus Switch 1 x 1:1 14-TSSOP	14-TSSOP	0.004394200164824724 m	0.004399999976158142 m	1 x 1:1	Surface Mount	14-TSSOP	Bus Switch	-40 °C	85 °C	3.5999999046325684 V	2.299999952316284 V	4 ul	Single Supply
Texas Instruments SN74CB3Q3125DGVR Bus Switch 1 x 1:1 14-TVSOP	14-TFSOP			1 x 1:1	Surface Mount		Bus Switch	-40 °C	85 °C	3.5999999046325684 V	2.299999952316284 V	4 ul	Single Supply	0.004399999976158142 m

Key Features

• High-Bandwidth Data Path (up to 500 MHz(1))5-V Tolerant I/Os With Device Powered Upor Powered DownLow and Flat ON-State Resistance (ron)Characteristics Over Operating Range(ron= 3 Ω Typ)Rail-to-Rail Switching on Data I/O Ports0-V to 5-V Switching With 3.3-V VCC0-V to 3.3-V Switching With 2.5-V VCCBidirectional Data Flow With Near-ZeroPropagation DelayLow Input and Output Capacitance MinimizesLoading and Signal Distortion(Cio(OFF)= 4 pF Typ)Fast Switching Frequency (fOE= 20 MHz Max)Data and Control Inputs Provide UndershootClamp DiodesLow Power Consumption(ICC= 0.3 mA Typ)VCCOperating Range From 2.3 V to 3.6 VData I/Os Support 0-V to 5-V Signaling Levels(0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V, 5 V)Control Inputs Can Be Driven by TTL,5-V, or 3.3-V CMOS OutputsIoffSupports Partial-Power-Down Mode OperationLatch-Up Performance Exceeds 100 mA PerJESD 78, Class IIESD Performance Tested Per JESD 222000-V Human-Body Model(A114-B, Class II)1000-V Charged-Device Model (C101)Supports Both Digital and Analog Applications:USB Interface, Differential Signal Interface, BusIsolation, Low-Distortion Signal GatingHigh-Bandwidth Data Path (up to 500 MHz(1))5-V Tolerant I/Os With Device Powered Upor Powered DownLow and Flat ON-State Resistance (ron)Characteristics Over Operating Range(ron= 3 Ω Typ)Rail-to-Rail Switching on Data I/O Ports0-V to 5-V Switching With 3.3-V VCC0-V to 3.3-V Switching With 2.5-V VCCBidirectional Data Flow With Near-ZeroPropagation DelayLow Input and Output Capacitance MinimizesLoading and Signal Distortion(Cio(OFF)= 4 pF Typ)Fast Switching Frequency (fOE= 20 MHz Max)Data and Control Inputs Provide UndershootClamp DiodesLow Power Consumption(ICC= 0.3 mA Typ)VCCOperating Range From 2.3 V to 3.6 VData I/Os Support 0-V to 5-V Signaling Levels(0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V, 5 V)Control Inputs Can Be Driven by TTL,5-V, or 3.3-V CMOS OutputsIoffSupports Partial-Power-Down Mode OperationLatch-Up Performance Exceeds 100 mA PerJESD 78, Class IIESD Performance Tested Per JESD 222000-V Human-Body Model(A114-B, Class II)1000-V Charged-Device Model (C101)Supports Both Digital and Analog Applications:USB Interface, Differential Signal Interface, BusIsolation, Low-Distortion Signal Gating

Description

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. 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.