74CBT3245 Series

5-V, 1:1 (SPST), 8-channel general-purpose FET bus switch with 1 control input

Catalog(14 parts)

Part	Circuit▲▼	Circuit	Mounting Type	Type	Voltage - Supply▲▼	Voltage - Supply▲▼	Supplier Device Package	Voltage Supply Source	Operating Temperature▲▼	Operating Temperature▲▼	Package / Case▲▼	Package / Case	Independent Circuits▲▼	Package / Case▲▼
Texas Instruments SN74CBT3245CDWR Bus Switch 8 x 1:1 20-SOIC	8 ul	1:1	Surface Mount	Bus Switch	5.5 V	4 V	20-SOIC	Single Supply	-40 °C	85 °C	0.007493000011891127 m, 0.007499999832361937 m	20-SOIC	1 ul
Texas Instruments SN74CBT3245CPW Bus Switch 8 x 1:1 20-TSSOP	8 ul	1:1	Surface Mount	Bus Switch	5.5 V	4 V	20-TSSOP	Single Supply	-40 °C	85 °C	0.004394200164824724 m	20-TSSOP	1 ul	0.004399999976158142 m
Texas Instruments SN74CBT3245DW
Texas Instruments SN74CBT3245CPWR Bus Switch 8 x 1:1 20-TSSOP	8 ul	1:1	Surface Mount	Bus Switch	5.5 V	4 V	20-TSSOP	Single Supply	-40 °C	85 °C	0.004394200164824724 m	20-TSSOP	1 ul	0.004399999976158142 m
Texas Instruments SN74CBT3245ADWR Bus Switch 8 x 1:1 20-SOIC	8 ul	1:1	Surface Mount	Bus Switch	5.5 V	4 V	20-SOIC	Single Supply	-40 °C	85 °C	0.007493000011891127 m, 0.007499999832361937 m	20-SOIC	1 ul
Texas Instruments SN74CBT3245DBLE
Texas Instruments SN74CBT3245AZQNR Bus Switch 8 x 1:1 20-BGA MICROSTAR JUNIOR (4x3)	8 ul	1:1	Surface Mount	Bus Switch	5.5 V	4 V	20-BGA MICROSTAR JUNIOR (4x3)	Single Supply	-40 °C	85 °C		20-VFBGA	1 ul
Texas Instruments SN74CBT3245AGQNR Bus Switch 8 x 1:1 20-BGA MICROSTAR JUNIOR (4x3)	8 ul	1:1	Surface Mount	Bus Switch	5.5 V	4 V	20-BGA MICROSTAR JUNIOR (4x3)	Single Supply	-40 °C	85 °C		20-VFBGA	1 ul
Texas Instruments SN74CBT3245APWE4 Bus Switch 8 x 1:1 20-TSSOP	8 ul	1:1	Surface Mount	Bus Switch	5.5 V	4 V	20-TSSOP	Single Supply	-40 °C	85 °C	0.004394200164824724 m	20-TSSOP	1 ul	0.004399999976158142 m
Texas Instruments SN74CBT3245CDBQR Bus Switch 8 x 1:1 20-SSOP	8 ul	1:1	Surface Mount	Bus Switch	5.5 V	4 V	20-SSOP	Single Supply	-40 °C	85 °C	0.003911599982529879 m	20-SSOP	1 ul	0.003899999894201755 m
Texas Instruments SN74CBT3245ADWG4 Bus Switch 8 x 1:1 20-SOIC	8 ul	1:1	Surface Mount	Bus Switch	5.5 V	4 V	20-SOIC	Single Supply	-40 °C	85 °C	0.007493000011891127 m, 0.007499999832361937 m	20-SOIC	1 ul
Texas Instruments SN74CBT3245ADBQRE4 Bus Switch 8 x 1:1 20-SSOP	8 ul	1:1	Surface Mount	Bus Switch	5.5 V	4 V	20-SSOP	Single Supply	-40 °C	85 °C	0.003911599982529879 m	20-SSOP	1 ul	0.003899999894201755 m
Texas Instruments SN74CBT3245ARGYR Bus Switch 8 x 1:1 20-VQFN (3.5x4.5)	8 ul	1:1	Surface Mount	Bus Switch	5.5 V	4 V	20-VQFN (3.5x4.5)	Single Supply	-40 °C	85 °C		20-VFQFN Exposed Pad	1 ul
Texas Instruments SN74CBT3245ADBQR Bus Switch 8 x 1:1 20-SSOP	8 ul	1:1	Surface Mount	Bus Switch	5.5 V	4 V	20-SSOP	Single Supply	-40 °C	85 °C	0.003911599982529879 m	20-SSOP	1 ul	0.003899999894201755 m

Key Features

• Standard ’245-Type Pinout5-Switch Connection Between Two PortsTTL-Compatible Input LevelsStandard ’245-Type Pinout5-Switch Connection Between Two PortsTTL-Compatible Input Levels

Description

The SN74CBT3245A provides eight bits of high-speed TTL-compatible bus switching. The SOIC, SSOP, TSSOP, and TVSOP packages provide a standard ’245 device pinout. The low on-state resistance of the switch allows connections to be made with minimal propagation delay. The device is organized as one 8-bit switch. When output enable (OE)\ is low, the switch is on, and port A is connected to port B. When OE\ is high, the switch is open, and the high-impedance state exists between the two ports. 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 SN74CBT3245A provides eight bits of high-speed TTL-compatible bus switching. The SOIC, SSOP, TSSOP, and TVSOP packages provide a standard ’245 device pinout. The low on-state resistance of the switch allows connections to be made with minimal propagation delay. The device is organized as one 8-bit switch. When output enable (OE)\ is low, the switch is on, and port A is connected to port B. When OE\ is high, the switch is open, and the high-impedance state exists between the two ports. 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.