SN74CBT16245C Series

5V, 1:1 (SPST), 16-channel FET bus switch with –2V undershoot protection and two control inputs

Catalog

5V, 1:1 (SPST), 16-channel FET bus switch with –2V undershoot protection and two control inputs

Part	Package / Case [y]	Package / Case	Package / Case [y]	Voltage - Supply [Max]	Voltage - Supply [Min]	Supplier Device Package	Voltage Supply Source	Circuit [custom]	Circuit [custom]	Independent Circuits	Operating Temperature [Max]	Operating Temperature [Min]	Type	Mounting Type	Package / Case	Package / Case [custom]
Texas Instruments SN74CBT16245CDL	0.295 in	48-BSSOP	7.5 mm	5.5 V	4 V	48-SSOP	Single Supply	8	1:1	2	85 °C	-40 °C	Bus Switch	Surface Mount
Texas Instruments SN74CBT16245DGGR		48-TFSOP		5.5 V	4 V	48-TSSOP	Single Supply	8	1:1	2	85 °C	-40 °C	Bus Switch	Surface Mount	0.24 in	6.1 mm
Texas Instruments SN74CBT16245DGVR		48-TFSOP		5.5 V	4 V		Single Supply	8	1:1	2	85 °C	-40 °C	Bus Switch	Surface Mount	0.173 in 4.4 mm
Texas Instruments SN74CBT16245DLR	0.295 in	48-BSSOP	7.5 mm	5.5 V	4 V	48-SSOP	Single Supply	8	1:1	2	85 °C	-40 °C	Bus Switch	Surface Mount
Texas Instruments SN74CBT16245CDLR	0.295 in	48-BSSOP	7.5 mm	5.5 V	4 V	48-SSOP	Single Supply	8	1:1	2	85 °C	-40 °C	Bus Switch	Surface Mount
Texas Instruments 74CBT16245DGGRE4		48-TFSOP		5.5 V	4 V	48-TSSOP	Single Supply	8	1:1	2	85 °C	-40 °C	Bus Switch	Surface Mount	0.24 in	6.1 mm

Catalog

5V, 1:1 (SPST), 16-channel FET bus switch with –2V undershoot protection and two control inputs

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 SN74CBT16245C 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 SN74CBT16245C 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 SN74CBT16245C is organized as two 8-bit bus switches with separate output-enable (1OE\, 2OE\) inputs. It can be used as two 8-bit bus switches or as one 16-bit bus switch. When OE\ is low, the associated 8-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 8-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. The device has isolation during power off. 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 SN74CBT16245C 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 SN74CBT16245C 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 SN74CBT16245C is organized as two 8-bit bus switches with separate output-enable (1OE\, 2OE\) inputs. It can be used as two 8-bit bus switches or as one 16-bit bus switch. When OE\ is low, the associated 8-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 8-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. The device has isolation during power off. 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.