74CB3Q16244 Series
10-pF on-state capacitance, 5-V, 1:1 (SPST), 16-channel FET bus switch with 4 control inputs
Manufacturer: Texas Instruments
Catalog(3 parts)
| Part | Package / Case | Independent Circuits▲▼ | Circuit▲▼ | Circuit | Supplier Device Package | Mounting Type | Voltage - Supply▲▼ | Voltage - Supply▲▼ | Voltage Supply Source | Operating Temperature▲▼ | Operating Temperature▲▼ | Type | Package / Case▲▼ | Package / Case▲▼ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
48-BSSOP (0.295", 7.50mm Width) | 4 ul | 4 ul | 1:1 | 48-SSOP | Surface Mount | 3.5999999046325684 V | 2.299999952316284 V | Single Supply | -40 °C | 85 °C | Bus Switch | |||
48-BSSOP (0.295", 7.50mm Width) | 4 ul | 4 ul | 1:1 | 48-SSOP | Surface Mount | 3.5999999046325684 V | 2.299999952316284 V | Single Supply | -40 °C | 85 °C | Bus Switch | |||
48-TFSOP | 4 ul | 4 ul | 1:1 | 48-TSSOP | Surface Mount | 3.5999999046325684 V | 2.299999952316284 V | Single Supply | -40 °C | 85 °C | Bus Switch | 0.006099999882280827 m | 0.006095999851822853 m |
Key Features
• High-Bandwidth Data Path (Up to 500 MHz)(1)5-V Tolerant I/Os With Device Powered Up orPowered DownLow and Flat ON-State Resistance (ron)Characteristics Over Operating Range(ron= 5 Ω Typical)Rail-to-Rail Switching on Data I/O Ports0 to 5-V Switching With 3.3-V VCC0 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 Typical)Fast Switching Frequency (fOE= 20 MHzMaximum)Data and Control Inputs Provide UndershootClamp DiodesLow Power Consumption (ICC= 1 mA Typical)VCCOperating Range From 2.3 V to 3.6 VData I/Os Support 0 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 or5-V and 3.3-V CMOS OutputsIoffSupports Partial-Power-Down Mode OperationLatch-Up Performance Exceeds 100 mAPer JESD 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 ApplicationsHigh-Bandwidth Data Path (Up to 500 MHz)(1)5-V Tolerant I/Os With Device Powered Up orPowered DownLow and Flat ON-State Resistance (ron)Characteristics Over Operating Range(ron= 5 Ω Typical)Rail-to-Rail Switching on Data I/O Ports0 to 5-V Switching With 3.3-V VCC0 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 Typical)Fast Switching Frequency (fOE= 20 MHzMaximum)Data and Control Inputs Provide UndershootClamp DiodesLow Power Consumption (ICC= 1 mA Typical)VCCOperating Range From 2.3 V to 3.6 VData I/Os Support 0 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 or5-V and 3.3-V CMOS OutputsIoffSupports Partial-Power-Down Mode OperationLatch-Up Performance Exceeds 100 mAPer JESD 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
Description
AI
The SN74CB3Q16244 device is a high-bandwidth FET bus switch using a charge pump to elevate the gate voltage of the pass transistor, 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 SN74CB3Q16244 device also features low data I/O capacitance to minimize capacitive loading and signal distortion on the data bus. Specifically designed to support high-bandwidth applications, the SN74CB3Q16244 device provides an optimized interface solution ideally suited for broadband communications, networking, and data-intensive computing systems.
The SN74CB3Q16244 device is organized as four 4-bit bus switches with separate output-enable (1OE, 2OE, 3OE, 4OE) inputs. It can be used as four 4-bit bus switches, two 8-bit bus switches, or one 16-bit bus switch. WhenOEis low, the associated 4-bit bus switch is ON, and the A port is connected to the B port, allowing bidirectional data flow between ports. WhenOEis high, the associated 4-bit bus switch is OFF, and a high-impedance state exists between the A and B ports.
This device is fully specified for partial-power-down applications using Ioff. The Ioffcircuitry prevents damaging current backflow through the device when it is powered down. The device has isolation during power off.
To ensure the high-impedance state during power up or power down,OEshould be tied to VCCthrough a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
The SN74CB3Q16244 device is a high-bandwidth FET bus switch using a charge pump to elevate the gate voltage of the pass transistor, 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 SN74CB3Q16244 device also features low data I/O capacitance to minimize capacitive loading and signal distortion on the data bus. Specifically designed to support high-bandwidth applications, the SN74CB3Q16244 device provides an optimized interface solution ideally suited for broadband communications, networking, and data-intensive computing systems.
The SN74CB3Q16244 device is organized as four 4-bit bus switches with separate output-enable (1OE, 2OE, 3OE, 4OE) inputs. It can be used as four 4-bit bus switches, two 8-bit bus switches, or one 16-bit bus switch. WhenOEis low, the associated 4-bit bus switch is ON, and the A port is connected to the B port, allowing bidirectional data flow between ports. WhenOEis high, the associated 4-bit bus switch is OFF, and a high-impedance state exists between the A and B ports.
This device is fully specified for partial-power-down applications using Ioff. The Ioffcircuitry prevents damaging current backflow through the device when it is powered down. The device has isolation during power off.
To ensure the high-impedance state during power up or power down,OEshould be tied to VCCthrough a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.