SN74CB3T3245

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8-kanaliger FET-Busschalter, 3,3 V, 1:1 (SPST) mit Pegelwandler

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Datenblatt

document-pdfAcrobat SN74CB3T3245 8-Bit FET Bus Switch 2.5V and 3.3V Low-Voltage With 5V-Tolerant Level Shifter datasheet (Rev. E) (Englisch) PDF | HTML

SN74CB3T3245

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

Protocols

Analog

Configuration

1:1 SPST

Number of channels

8

Bandwidth (MHz)

100

Ron (typ) (mΩ)

5000

Input/output voltage (min) (V)

0

Input/output voltage (max) (V)

5.5

Operating temperature range (°C)

-40 to 85

ESD CDM (kV)

1

Input/output continuous current (max) (mA)

128

COFF (typ) (pF)

5

CON (typ) (pF)

5

OFF-state leakage current (max) (µA)

10

Ron (max) (mΩ)

8500

VIH (min) (V)

1.7

VIL (max) (V)

0.8

Rating

Catalog

Protocols

Analog

Configuration

1:1 SPST

Number of channels

8

Bandwidth (MHz)

100

Ron (typ) (mΩ)

5000

Input/output voltage (min) (V)

0

Input/output voltage (max) (V)

5.5

Operating temperature range (°C)

-40 to 85

ESD CDM (kV)

1

Input/output continuous current (max) (mA)

128

COFF (typ) (pF)

5

CON (typ) (pF)

5

OFF-state leakage current (max) (µA)

10

Ron (max) (mΩ)

8500

VIH (min) (V)

1.7

VIL (max) (V)

0.8

Rating

Catalog

SOIC (DW)

20

131.84 mm² (12.8 mm × 10.3 mm)

TSSOP (PW)

20

41.6 mm² (6.5 mm × 6.4 mm)

SSOP (DBQ)

20

51.9 mm² (8.65 mm × 6 mm)

VSSOP (DGS)

20

24.99 mm² (5.1 mm × 4.9 mm)

TVSOP (DGV)

20

32 mm² (5 mm × 6.4 mm)

Standard ’245-type pinout
Output voltage translation tracks VCC
Supports mixed-mode signal operation on all data I/O ports
- 5V Input down to 3.3V output level shift with 3.3V VCC
- 5V/3.3V input down to 2.5V output level shift with 2.5V VCC
5V-tolerant I/Os with device powered up or powered down
Bidirectional data flow with near-zero propagation delay
Low ON-state resistance (ron) characteristics (ron = 5Ω typical)
Low Input, output capacitance minimizes loading (Cio(OFF) = 5pF typical)
Data and control inputs provide undershoot clamp diodes
Low power consumption (ICC = 40µA maximum)
VCC operating range from 2.3V to 3.6V
Data I/Os support 0 to 5V signaling levels (0.8V, 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, 5V)
Control inputs can be driven by TTL or 5V/3.3V CMOS outputs
Ioff supports partial-power-down mode operation
Latch-up performance exceeds 250mA per JESD 17
ESD performance tested per JESD 22
- 2000V human-body model (A114-B, Class II)
- 1000V charged-device model (C101)
Designed for low-power portable equipment

Standard ’245-type pinout
Output voltage translation tracks VCC
Supports mixed-mode signal operation on all data I/O ports
- 5V Input down to 3.3V output level shift with 3.3V VCC
- 5V/3.3V input down to 2.5V output level shift with 2.5V VCC
5V-tolerant I/Os with device powered up or powered down
Bidirectional data flow with near-zero propagation delay
Low ON-state resistance (ron) characteristics (ron = 5Ω typical)
Low Input, output capacitance minimizes loading (Cio(OFF) = 5pF typical)
Data and control inputs provide undershoot clamp diodes
Low power consumption (ICC = 40µA maximum)
VCC operating range from 2.3V to 3.6V
Data I/Os support 0 to 5V signaling levels (0.8V, 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, 5V)
Control inputs can be driven by TTL or 5V/3.3V CMOS outputs
Ioff supports partial-power-down mode operation
Latch-up performance exceeds 250mA per JESD 17
ESD performance tested per JESD 22
- 2000V human-body model (A114-B, Class II)
- 1000V charged-device model (C101)
Designed for low-power portable equipment

The SN74CB3T3245 device is a high-speed, TTL-compatible, 8-bit FET bus switch with low ON-state resistance (ron), allowing for minimal propagation delay. The device fully supports mixed-mode signal operation on all data I/O ports by providing voltage translation that tracks VCC.

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Technische Dokumentation

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Top-Dokumentation	Typ	Titel	Format-Optionen	Datum
*	Datenblatt	SN74CB3T3245 8-Bit FET Bus Switch 2.5V and 3.3V Low-Voltage With 5V-Tolerant Level Shifter datasheet (Rev. E)	PDF \| HTML	05.05.2026
	Anwendungshinweis	Selecting the Correct Texas Instruments Signal Switch (Rev. E)	PDF \| HTML	02.06.2022
	Anwendungshinweis	Multiplexers and Signal Switches Glossary (Rev. B)	PDF \| HTML	01.12.2021
	Application brief	Eliminate Power Sequencing with Powered-off Protection Signal Switches (Rev. C)	PDF \| HTML	06.01.2021

Design und Entwicklung

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