SN74CB3T3383

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3.3-V, crosspoint/exchange, 10-channel FET bus switch with level shifter

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Data sheet

document-pdfAcrobat SN74CB3T3383 datasheet (Rev. A)

SN74CB3T3383

ACTIVE

Data sheet

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Product details

Protocols

Analog

Configuration

Crosspoint/exchange

Number of channels

10

Ron (typ) (mΩ)

5000

Operating temperature range (°C)

-40 to 85

ESD CDM (kV)

1

Input/output continuous current (max) (mA)

100

COFF (typ) (pF)

8

CON (typ) (pF)

7

OFF-state leakage current (max) (µA)

10

Ron (max) (mΩ)

9000

VIH (min) (V)

2

VIL (max) (V)

0.8

Rating

Catalog

Protocols

Analog

Configuration

Crosspoint/exchange

Number of channels

10

Ron (typ) (mΩ)

5000

Operating temperature range (°C)

-40 to 85

ESD CDM (kV)

1

Input/output continuous current (max) (mA)

100

COFF (typ) (pF)

8

CON (typ) (pF)

7

OFF-state leakage current (max) (µA)

10

Ron (max) (mΩ)

9000

VIH (min) (V)

2

VIL (max) (V)

0.8

Rating

Catalog

TSSOP (PW)

24

49.92 mm² (7.8 mm × 6.4 mm)

TVSOP (DGV)

24

32 mm² (5 mm × 6.4 mm)

SOIC (DW)

24

159.65 mm² (15.5 mm × 10.3 mm)

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 Typical)
Low Input/Output Capacitance Minimizes Loading (C_io(OFF) = 8 pF Typical)
Data and Control Inputs Provide Undershoot Clamp Diodes
Low Power Consumption (I_CC = 20 µA Max)
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)
Supports Digital Applications: Level Translation, Memory Interleaving, Bus Isolation
Ideal for Low-Power Portable Equipment

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 Typical)
Low Input/Output Capacitance Minimizes Loading (C_io(OFF) = 8 pF Typical)
Data and Control Inputs Provide Undershoot Clamp Diodes
Low Power Consumption (I_CC = 20 µA Max)
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)
Supports Digital Applications: Level Translation, Memory Interleaving, Bus Isolation
Ideal for Low-Power Portable Equipment

The SN74CB3T3383 is a high-speed TTL-compatible FET bus-exchange 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. The SN74CB3T3383 supports systems using 5-V TTL, 3.3-V LVTTL, and 2.5-V CMOS switching standards, as well as user-defined switching levels (see Figure 1).

The SN74CB3T3383 is organized as a 10-bit bus switch or as a 5-bit bus-exchange with enable (BE)\ input. When used as a 5-bit bus-exchange, the device provides data exchanging between four signal ports. When BE\ is low, the bus-exchange switch is ON, and the select input (BX) controls the data path. When BE\ is high, the bus-exchange switch is OFF, and a high-impedance state exists between the A and B ports.

This device is fully specified for partial-power-down applications using I_off. The I_off feature 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, BE\ should be tied to V_CC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

The SN74CB3T3383 is a high-speed TTL-compatible FET bus-exchange 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. The SN74CB3T3383 supports systems using 5-V TTL, 3.3-V LVTTL, and 2.5-V CMOS switching standards, as well as user-defined switching levels (see Figure 1).

The SN74CB3T3383 is organized as a 10-bit bus switch or as a 5-bit bus-exchange with enable (BE)\ input. When used as a 5-bit bus-exchange, the device provides data exchanging between four signal ports. When BE\ is low, the bus-exchange switch is ON, and the select input (BX) controls the data path. When BE\ is high, the bus-exchange switch is OFF, and a high-impedance state exists between the A and B ports.

This device is fully specified for partial-power-down applications using I_off. The I_off feature 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, BE\ should be tied to V_CC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

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Top documentation	Type	Title	Format options	Date
*	Data sheet	SN74CB3T3383 datasheet (Rev. A)		Dec 2, 2004
	Application note	Selecting the Correct Texas Instruments Signal Switch (Rev. E)	PDF \| HTML	Jun 2, 2022
	Application note	Multiplexers and Signal Switches Glossary (Rev. B)	PDF \| HTML	Dec 1, 2021

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