SN74CB3T16211

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3.3-V, 1:1 (SPST), 24-channel FET bus switch with level shifter

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Data sheet

document-pdfAcrobat SN74CB3T16211 datasheet (Rev. C)

SN74CB3T16211

ACTIVE

Data sheet

Order now

Product details

Protocols

Analog

Configuration

1:1 SPST

Number of channels

24

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)

13

OFF-state leakage current (max) (µA)

10

Ron (max) (mΩ)

9500

VIH (min) (V)

1.7

VIL (max) (V)

0.8

Rating

Catalog

Protocols

Analog

Configuration

1:1 SPST

Number of channels

24

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)

13

OFF-state leakage current (max) (µA)

10

Ron (max) (mΩ)

9500

VIH (min) (V)

1.7

VIL (max) (V)

0.8

Rating

Catalog

TVSOP (DGV)

56

72.32 mm² (11.3 mm × 6.4 mm)

TSSOP (DGG)

56

113.4 mm² (14 mm × 8.1 mm)

SSOP (DL)

56

190.647 mm² (18.42 mm × 10.35 mm)

Member of the Texas Instruments Widebus Family
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 Typ)
Low Input/Output Capacitance Minimizes
Loading (C_io(OFF) = 5 pF Typ)
Data and Control Inputs Provide
Undershoot Clamp Diodes
Low Power Consumption
(I_CC = 70 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, PCI Interface, Bus Isolation
Ideal for Low-Power Portable Equipment

Member of the Texas Instruments Widebus Family
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 Typ)
Low Input/Output Capacitance Minimizes
Loading (C_io(OFF) = 5 pF Typ)
Data and Control Inputs Provide
Undershoot Clamp Diodes
Low Power Consumption
(I_CC = 70 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, PCI Interface, Bus Isolation
Ideal for Low-Power Portable Equipment

The SN74CB3T16211 is a high-speed TTL-compatible 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. The SN74CB3T16211 supports systems using 5-V TTL, 3.3-V LVTTL, and 2.5-V CMOS switching standards, as well as user-defined switching levels.

The I/O port of this device has a pullup current source that maintains the output voltage at V_CC when the device is ON, and the input is greater than or equal to V_CC – 1. Because of the pullup current source, the output voltage level may be less than V_CC when the operating frequency is low and the I/O port is connected to a pulldown resistor. In order to maintain the output voltage at V_CC, a pullup resistor must be connected to V_CC instead of a pulldown resistor to ground.

The SN74CB3T16211 is organized as two 12-bit bus switches with separate output-enable (1OE, 2OE) inputs. It can be used as two 12-bit bus switches or as one 24-bit bus switch. When OE is low, the associated 12-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 12-bit bus 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, OE 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 SN74CB3T16211 is a high-speed TTL-compatible 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. The SN74CB3T16211 supports systems using 5-V TTL, 3.3-V LVTTL, and 2.5-V CMOS switching standards, as well as user-defined switching levels.

The I/O port of this device has a pullup current source that maintains the output voltage at V_CC when the device is ON, and the input is greater than or equal to V_CC – 1. Because of the pullup current source, the output voltage level may be less than V_CC when the operating frequency is low and the I/O port is connected to a pulldown resistor. In order to maintain the output voltage at V_CC, a pullup resistor must be connected to V_CC instead of a pulldown resistor to ground.

The SN74CB3T16211 is organized as two 12-bit bus switches with separate output-enable (1OE, 2OE) inputs. It can be used as two 12-bit bus switches or as one 24-bit bus switch. When OE is low, the associated 12-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 12-bit bus 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, OE 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	SN74CB3T16211 datasheet (Rev. C)		Aug 17, 2012
	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
	Application brief	Eliminate Power Sequencing with Powered-off Protection Signal Switches (Rev. C)	PDF \| HTML	Jan 6, 2021