SN74CB3T3245

Name: SN74CB3T3245
Brand: TI
SKU: SN74CB3T3245
Price: 0.694 USD

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3.3-V, 1:1 (SPST), 8-channel FET bus switch with level shifter

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Data sheet

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

SN74CB3T3245

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Data sheet

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Product details

Configuration

1:1 SPST

Number of channels

Power supply voltage - single (V)

2.5, 3.3

Protocols

Analog

Ron (typ) (Ω)

CON (typ) (pF)

ON-state leakage current (max) (µA)

Bandwidth (MHz)

100

Operating temperature range (°C)

-40 to 85

Features

Powered-off protection, Signal path translation

Input/output continuous current (max) (mA)

128

Rating

Catalog

Drain supply voltage (max) (V)

3.6

Supply voltage (max) (V)

3.6

Configuration

1:1 SPST

Number of channels

Power supply voltage - single (V)

2.5, 3.3

Protocols

Analog

Ron (typ) (Ω)

CON (typ) (pF)

ON-state leakage current (max) (µA)

Bandwidth (MHz)

100

Operating temperature range (°C)

-40 to 85

Features

Powered-off protection, Signal path translation

Input/output continuous current (max) (mA)

128

Rating

Catalog

Drain supply voltage (max) (V)

3.6

Supply voltage (max) (V)

3.6

SOIC (DW)

131.84 mm² 12.8 x 10.3

SSOP (DBQ)

51.9 mm² 8.65 x 6

TSSOP (PW)

41.6 mm² 6.5 x 6.4

TVSOP (DGV)

32 mm² 5 x 6.4

Standard ’245-Type Pinout
Output Voltage Translation Tracks V_CC
Supports Mixed-Mode Signal Operation on All Data I/O Ports
- 5-V Input Down to 3.3-V Output Level Shift With 3.3-V V_CC
- 5-V/3.3-V Input Down to 2.5-V Output Level Shift With 2.5-V V_CC
5-V-Tolerant I/Os With Device Powered Up or Powered Down
Bidirectional Data Flow With Near-Zero Propagation Delay
Low ON-State Resistance (r_on) Characteristics (r_on= 5 Ω Typical)
Low Input/Output Capacitance Minimizes Loading (C_io(OFF) = 5 pF Typical)
Data and Control Inputs Provide Undershoot Clamp Diodes
Low Power Consumption (I_CC = 40 µA Maximum)
V_CC Operating Range From 2.3 V to 3.6 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 250 mA Per JESD 17
ESD Performance Tested Per JESD 22
- 2000-V Human-Body Model (A114-B, Class II)
- 1000-V Charged-Device Model (C101)
Ideal for Low-Power Portable Equipment

Standard ’245-Type Pinout
Output Voltage Translation Tracks V_CC
Supports Mixed-Mode Signal Operation on All Data I/O Ports
- 5-V Input Down to 3.3-V Output Level Shift With 3.3-V V_CC
- 5-V/3.3-V Input Down to 2.5-V Output Level Shift With 2.5-V V_CC
5-V-Tolerant I/Os With Device Powered Up or Powered Down
Bidirectional Data Flow With Near-Zero Propagation Delay
Low ON-State Resistance (r_on) Characteristics (r_on= 5 Ω Typical)
Low Input/Output Capacitance Minimizes Loading (C_io(OFF) = 5 pF Typical)
Data and Control Inputs Provide Undershoot Clamp Diodes
Low Power Consumption (I_CC = 40 µA Maximum)
V_CC Operating Range From 2.3 V to 3.6 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 250 mA Per JESD 17
ESD Performance Tested Per JESD 22
- 2000-V Human-Body Model (A114-B, Class II)
- 1000-V Charged-Device Model (C101)
Ideal for Low-Power Portable Equipment

The SN74CB3T3245 device is a high-speed TTL-compatible 8-bit FET bus switch with low ON-state resistance (r_on), 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 V_CC.

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Technical documentation

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	Type	Title		Date
*	Data sheet	SN74CB3T3245 8-Bit FET Bus Switch 2.5-V and 3.3-V Low-Voltage With 5-V-Tolerant Level Shifter datasheet (Rev. C)	PDF \| HTML	31 May 2018
	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 Dec 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	Logic Guide (Rev. AB)		12 Jun 2017
	Application note	How to Select Little Logic (Rev. A)		26 Jul 2016
	Application note	Understanding and Interpreting Standard-Logic Data Sheets (Rev. C)		02 Dec 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
	Application note	Selecting the Right Level Translation Solution (Rev. A)		22 Jun 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 & development

For additional terms or required resources, click any title below to view the detail page where available.

Interface adapter

LEADED-ADAPTER1 — Surface mount to DIP header adapter for quick testing of TI's 5, 8, 10, 16 & 24-pin leaded packages

The EVM-LEADED1 board allows for quick testing and bread boarding of TI's common leaded packages. The board has footprints to convert TI's D, DBQ, DCT,DCU, DDF, DGS, DGV, and PW surface mount packages to 100mil DIP headers.

User guide: PDF