74CBT16211 Series

5-V, 1:1 (SPST), 24-channel FET bus switch with –2-V undershoot protection

Catalog(9 parts)

Part	Operating Temperature▲▼	Operating Temperature▲▼	Type	Mounting Type	Voltage - Supply▲▼	Voltage - Supply▲▼	Package / Case	Package / Case▲▼	Package / Case▲▼	Circuit	Circuit▲▼	Supplier Device Package	Independent Circuits▲▼	Voltage Supply Source	Package / Case▲▼	Package / Case▲▼
Texas Instruments SN74CBT16211DLR
Texas Instruments SN74CBT16211ADGGR Bus Switch 12 x 1:1 56-TSSOP	-40 °C	85 °C	Bus Switch	Surface Mount	5.5 V	4.5 V	56-TFSOP	0.006099999882280827 m	0.006095999851822853 m	1:1	12 ul	56-TSSOP	2 ul	Single Supply
Texas Instruments SN74CBT16211DGVR
Texas Instruments SN74CBT16211ADL Bus Switch 12 x 1:1 56-SSOP	-40 °C	85 °C	Bus Switch	Surface Mount	5.5 V	4.5 V	56-BSSOP			1:1	12 ul	56-SSOP	2 ul	Single Supply	0.007493000011891127 m	0.007499999832361937 m
Texas Instruments SN74CBT16211CDL Bus Switch 12 x 1:1 56-SSOP	-40 °C	85 °C	Bus Switch	Surface Mount	5.5 V	4.5 V	56-BSSOP			1:1	12 ul	56-SSOP	2 ul	Single Supply	0.007493000011891127 m	0.007499999832361937 m
Texas Instruments SN74CBT16211CDGVR Bus Switch 12 x 1:1 56-TVSOP	-40 °C	85 °C	Bus Switch	Surface Mount	5.5 V	4.5 V	56-TFSOP	0.004399999976158142 m	0.004394200164824724 m	1:1	12 ul	56-TVSOP	2 ul	Single Supply
Texas Instruments SN74CBT16211AGQLR Bus Switch 12 x 1:1 56-BGA Microstar Junior (7x4.5)	-40 °C	85 °C	Bus Switch	Surface Mount	5.5 V	4.5 V	56-VFBGA			1:1	12 ul	56-BGA Microstar Junior (7x4.5)	2 ul	Single Supply
Texas Instruments SN74CBT16211CDGGR Bus Switch 12 x 1:1 56-TSSOP	-40 °C	85 °C	Bus Switch	Surface Mount	5.5 V	4.5 V	56-TFSOP	0.006099999882280827 m	0.006095999851822853 m	1:1	12 ul	56-TSSOP	2 ul	Single Supply
Texas Instruments SN74CBT16211ADGVR Bus Switch 12 x 1:1 56-TVSOP	-40 °C	85 °C	Bus Switch	Surface Mount	5.5 V	4.5 V	56-TFSOP	0.004399999976158142 m	0.004394200164824724 m	1:1	12 ul	56-TVSOP	2 ul	Single Supply

Key Features

• Member of the Texas Instruments Widebus™ FamilyUndershoot Protection for Off-Isolation on A and B Ports Up To –2 VBidirectional Data Flow, With Near-Zero Propagation DelayLow ON-State Resistance (ron) Characteristics (ron= 3Typical)Low Input/Output Capacitance Minimizes Loading and Signal Distortion (Cio(OFF) = 5.5 pF Typical)Data and Control Inputs Provide Undershoot Clamp DiodesLow Power Consumption (ICC= 3 µA Max)VCCOperating Range From 4 V to 5.5 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 or 5-V/3.3-V CMOS OutputsIoffSupports Partial-Power-Down Mode OperationLatch-Up Performance Exceeds 100 mA Per 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: PCI Interface, Memory Interleaving, Bus Isolation, Low-Distortion Signal GatingWidebus is a trademark of Texas Instruments.Member of the Texas Instruments Widebus™ FamilyUndershoot Protection for Off-Isolation on A and B Ports Up To –2 VBidirectional Data Flow, With Near-Zero Propagation DelayLow ON-State Resistance (ron) Characteristics (ron= 3Typical)Low Input/Output Capacitance Minimizes Loading and Signal Distortion (Cio(OFF) = 5.5 pF Typical)Data and Control Inputs Provide Undershoot Clamp DiodesLow Power Consumption (ICC= 3 µA Max)VCCOperating Range From 4 V to 5.5 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 or 5-V/3.3-V CMOS OutputsIoffSupports Partial-Power-Down Mode OperationLatch-Up Performance Exceeds 100 mA Per 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: PCI Interface, Memory Interleaving, Bus Isolation, Low-Distortion Signal GatingWidebus is a trademark of Texas Instruments.

Description

The SN74CBT16211C is a high-speed TTL-compatible FET bus switch with low ON-state resistance (ron), allowing for minimal propagation delay. Active Undershoot-Protection Circuitry on the A and B ports of the SN74CBT16211C 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 SN74CBT16211C 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 the high-impedance state exists between the A and B ports. This device is fully specified for partial-power-down applications using Ioff. The Iofffeature 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 VCCthrough a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. The SN74CBT16211C is a high-speed TTL-compatible FET bus switch with low ON-state resistance (ron), allowing for minimal propagation delay. Active Undershoot-Protection Circuitry on the A and B ports of the SN74CBT16211C 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 SN74CBT16211C 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 the high-impedance state exists between the A and B ports. This device is fully specified for partial-power-down applications using Ioff. The Iofffeature 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 VCCthrough a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.