SN74CBT16811C

Name: SN74CBT16811C
Brand: TI
SKU: SN74CBT16811C
Price: 0.35 USD

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24-Kanal-FET-Busschalter, 5 V, 1:1 (SPST) mit vorgeladenen Ausgängen und -2-V-Unterschwingungsschutz

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Datenblatt

document-pdfAcrobat SN74CBT16811C datasheet (Rev. C) (Englisch)

SN74CBT16811C

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Datenblatt

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Produktdetails

Configuration

1:1 SPST

Number of channels

24

Power supply voltage - single (V)

5

Protocols

Analog

Ron (typ) (Ω)

8

CON (typ) (pF)

15.5

Bandwidth (MHz)

200

Operating temperature range (°C)

-40 to 85

Features

Powered-off protection, Undershoot protection

Input/output continuous current (max) (mA)

128

Rating

Catalog

Drain supply voltage (max) (V)

5.5

Supply voltage (max) (V)

5.5

Configuration

1:1 SPST

Number of channels

24

Power supply voltage - single (V)

5

Protocols

Analog

Ron (typ) (Ω)

8

CON (typ) (pF)

15.5

Bandwidth (MHz)

200

Operating temperature range (°C)

-40 to 85

Features

Powered-off protection, Undershoot protection

Input/output continuous current (max) (mA)

128

Rating

Catalog

Drain supply voltage (max) (V)

5.5

Supply voltage (max) (V)

5.5

TSSOP (DGG)

56

113.4 mm² 14 x 8.1

Member of the Texas Instruments Widebus™ Family
Undershoot Protection for Off-Isolation on A and B Ports Up To –2 V
B-Port Outputs Are Precharged by Bias Voltage (BIASV) to Minimize Signal Distortion During Live Insertion and Hot-Plugging
Supports PCI Hot Plug
Bidirectional Data Flow, With Near-Zero Propagation Delay
Low ON-State Resistance (r_on) Characteristics (r_on = 3 Typical)
Low Input/Output Capacitance Minimizes Loading and Signal Distortion (C_io(OFF) = 5.5 pF Typical)
Data and Control Inputs Provide Undershoot Clamp Diodes
Low Power Consumption (I_CC = 3 µA Max)
V_CC Operating Range From 4 V to 5.5 V
Data 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 or 5-V/3.3-V CMOS Outputs
I_off Supports Partial-Power-Down Mode Operation
Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
ESD Performance Tested Per JESD 22
- 2000-V Human-Body Model (A114-B, Class II)
- 1000-V Charged-Device Model (C101)
Supports Both Digital and Analog Applications: PCI Interface, Memory Interleaving, Bus Isolation, Low-Distortion Signal Gating

Widebus is a trademark of Texas Instruments.

Member of the Texas Instruments Widebus™ Family
Undershoot Protection for Off-Isolation on A and B Ports Up To –2 V
B-Port Outputs Are Precharged by Bias Voltage (BIASV) to Minimize Signal Distortion During Live Insertion and Hot-Plugging
Supports PCI Hot Plug
Bidirectional Data Flow, With Near-Zero Propagation Delay
Low ON-State Resistance (r_on) Characteristics (r_on = 3 Typical)
Low Input/Output Capacitance Minimizes Loading and Signal Distortion (C_io(OFF) = 5.5 pF Typical)
Data and Control Inputs Provide Undershoot Clamp Diodes
Low Power Consumption (I_CC = 3 µA Max)
V_CC Operating Range From 4 V to 5.5 V
Data 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 or 5-V/3.3-V CMOS Outputs
I_off Supports Partial-Power-Down Mode Operation
Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
ESD Performance Tested Per JESD 22
- 2000-V Human-Body Model (A114-B, Class II)
- 1000-V Charged-Device Model (C101)
Supports Both Digital and Analog Applications: PCI Interface, Memory Interleaving, Bus Isolation, Low-Distortion Signal Gating

Widebus is a trademark of Texas Instruments.

The SN74CBT16811C is a high-speed TTL-compatible FET bus switch with low ON-state resistance (r_on), allowing for minimal propagation delay. Active Undershoot-Protection Circuitry on the A and B ports of the SN74CBT16811C provides protection for undershoot up to –2 V by sensing an undershoot event and ensuring that the switch remains in the proper OFF state. The device also precharges the B port to a user-selectable bias voltage (BIASV) to minimize live-insertion noise.

The SN74CBT16811C is organized as two 12-bit bus switches with separate output-enable (1OE\, 2OE\) inputs. It can be used as two 12-bit bus switches or as one 24-bit bus switch. When OE\ is low, the associated 12-bit bus switch is ON, and the A port is connected to the B port, allowing bidirectional data flow between ports. When OE\ is high, the associated 12-bit bus switch is OFF, and a high-impedance state exists between the A and B ports. The B port is precharged to BIASV through the equivalent of a 10-k resistor when OE\ is high, or if the device is powered down (V_CC = 0 V).

During insertion (or removal) of a card into (or from) an active bus, the card’s output voltage may be close to GND. When the connector pins make contact, the card’s parasitic capacitance tries to force the bus signal to GND, creating a possible glitch on the active bus. This glitching effect can be reduced by using a bus switch with precharged bias voltage (BIASV) of the bus switch equal to the input threshold voltage level of the receivers on the active bus. This method will ensure that any glitch produced by insertion (or removal) of the card will not cross the input threshold region of the receivers on the active bus, minimizing the effects of live-insertion noise.

This device is fully specified for partial-power-down applications using I_off. The I_off feature ensures that damaging current will not backflow through the device when it is powered down.

To ensure the high-impedance state during power up or power down, OE\ should be tied to V_CC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

The SN74CBT16811C is a high-speed TTL-compatible FET bus switch with low ON-state resistance (r_on), allowing for minimal propagation delay. Active Undershoot-Protection Circuitry on the A and B ports of the SN74CBT16811C provides protection for undershoot up to –2 V by sensing an undershoot event and ensuring that the switch remains in the proper OFF state. The device also precharges the B port to a user-selectable bias voltage (BIASV) to minimize live-insertion noise.

The SN74CBT16811C is organized as two 12-bit bus switches with separate output-enable (1OE\, 2OE\) inputs. It can be used as two 12-bit bus switches or as one 24-bit bus switch. When OE\ is low, the associated 12-bit bus switch is ON, and the A port is connected to the B port, allowing bidirectional data flow between ports. When OE\ is high, the associated 12-bit bus switch is OFF, and a high-impedance state exists between the A and B ports. The B port is precharged to BIASV through the equivalent of a 10-k resistor when OE\ is high, or if the device is powered down (V_CC = 0 V).

During insertion (or removal) of a card into (or from) an active bus, the card’s output voltage may be close to GND. When the connector pins make contact, the card’s parasitic capacitance tries to force the bus signal to GND, creating a possible glitch on the active bus. This glitching effect can be reduced by using a bus switch with precharged bias voltage (BIASV) of the bus switch equal to the input threshold voltage level of the receivers on the active bus. This method will ensure that any glitch produced by insertion (or removal) of the card will not cross the input threshold region of the receivers on the active bus, minimizing the effects of live-insertion noise.

This device is fully specified for partial-power-down applications using I_off. The I_off feature ensures that damaging current will not backflow through the device when it is powered down.

To ensure the high-impedance state during power up or power down, OE\ should be tied to V_CC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

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	Typ	Titel		Datum
*	Data sheet	SN74CBT16811C datasheet (Rev. C)		15 Okt 2003
	Application note	Selecting the Correct Texas Instruments Signal Switch (Rev. E)	PDF \| HTML	02 Jun 2022
	Application note	Multiplexers and Signal Switches Glossary (Rev. B)	PDF \| HTML	01 Dez 2021
	Application note	CBT-C, CB3T, and CB3Q Signal-Switch Families (Rev. C)	PDF \| HTML	19 Nov 2021
	Application brief	Eliminate Power Sequencing with Powered-off Protection Signal Switches (Rev. C)	PDF \| HTML	06 Jan 2021
	Selection guide	Little Logic Guide 2018 (Rev. G)		06 Jul 2018
	Selection guide	Logic Guide (Rev. AB)		12 Jun 2017
	Application note	Understanding and Interpreting Standard-Logic Data Sheets (Rev. C)		02 Dez 2015
	User guide	LOGIC Pocket Data Book (Rev. B)		16 Jan 2007
	More literature	Digital Bus Switch Selection Guide (Rev. A)		10 Nov 2004
	Application note	Semiconductor Packing Material Electrostatic Discharge (ESD) Protection		08 Jul 2004
	User guide	Signal Switch Data Book (Rev. A)		14 Nov 2003
	Application note	Bus FET Switch Solutions for Live Insertion Applications		07 Feb 2003

Design und Entwicklung

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SN74CBT16811C IBIS Model (Rev. B)

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Gehäuse	Pins	CAD-Symbole, Footprints und 3D-Modelle
TSSOP (DGG)	56	Ultra Librarian

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SN74CBT16811C

24-Kanal-FET-Busschalter, 5 V, 1:1 (SPST) mit vorgeladenen Ausgängen und -2-V-Unterschwingungsschutz

SN74CBT16811C

Produktdetails

Technische Dokumentation

Design und Entwicklung

SN74CBT16811C IBIS Model (Rev. B)

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