74CB3T1G125 Series
3.3-V, 1:1 (SPST), 1-channel FET bus switch with level shifter
Manufacturer: Texas Instruments
Catalog(4 parts)
| Part | Type | Operating Temperature▲▼ | Operating Temperature▲▼ | Voltage - Supply▲▼ | Voltage - Supply▲▼ | Mounting Type | Independent Circuits▲▼ | Circuit | Package / Case | Voltage Supply Source | Supplier Device Package |
|---|---|---|---|---|---|---|---|---|---|---|---|
Bus Switch | -40 °C | 85 °C | 3.5999999046325684 V | 2.299999952316284 V | Surface Mount | 1 ul | 1 x 1:1 | SC-74A, SOT-753 | Single Supply | SOT-23-5 | |
Bus Switch | -40 °C | 85 °C | 3.5999999046325684 V | 2.299999952316284 V | Surface Mount | 1 ul | 1 x 1:1 | SC-74A, SOT-753 | Single Supply | SOT-23-5 | |
Bus Switch | -40 °C | 85 °C | 3.5999999046325684 V | 2.299999952316284 V | Surface Mount | 1 ul | 1 x 1:1 | SC-74A, SOT-753 | Single Supply | SOT-23-5 | |
Bus Switch | -40 °C | 85 °C | 3.5999999046325684 V | 2.299999952316284 V | Surface Mount | 1 ul | 1 x 1:1 | 5-TSSOP, SC-70-5, SOT-353 | Single Supply | SC-70-5 |
Key Features
• Output Voltage Translation Tracks VCCSupports Mixed-Mode Signal Operation on All Data I/O Ports5-V Input Down to 3.3-V Output Level Shift With 3.3-V VCC5-V/3.3-V Input Down to 2.5-V Output Level Shift With 2.5-V VCC5-V-Tolerant I/Os, With Device Powered Up or Powered DownBidirectional Data Flow With Near-Zero Propagation DelayLow ON-State Resistance (ron) Characteristics (ron= 5Typ)Low Input/Output Capacitance Minimizes Loading (Cio(OFF)= 5 pF Typ)Data and Control Inputs Provide Undershoot Clamp DiodesLow Power Consumption (ICC= 20 µA Max)VCCOperating Range From 2.3 V to 3.6 VData 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 OutputsIoffSupports Partial-Power-Down Mode OperationLatch-Up Performance Exceeds 250 mA Per JESD 17ESD Performance Tested Per JESD 222000-V Human-Body Model (A114-B, Class II)1000-V Charged-Device Model (C101)Supports Digital Applications: Level Translation, USB Interface, Bus IsolationIdeal for Low-Power Portable EquipmentOutput Voltage Translation Tracks VCCSupports Mixed-Mode Signal Operation on All Data I/O Ports5-V Input Down to 3.3-V Output Level Shift With 3.3-V VCC5-V/3.3-V Input Down to 2.5-V Output Level Shift With 2.5-V VCC5-V-Tolerant I/Os, With Device Powered Up or Powered DownBidirectional Data Flow With Near-Zero Propagation DelayLow ON-State Resistance (ron) Characteristics (ron= 5Typ)Low Input/Output Capacitance Minimizes Loading (Cio(OFF)= 5 pF Typ)Data and Control Inputs Provide Undershoot Clamp DiodesLow Power Consumption (ICC= 20 µA Max)VCCOperating Range From 2.3 V to 3.6 VData 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 OutputsIoffSupports Partial-Power-Down Mode OperationLatch-Up Performance Exceeds 250 mA Per JESD 17ESD Performance Tested Per JESD 222000-V Human-Body Model (A114-B, Class II)1000-V Charged-Device Model (C101)Supports Digital Applications: Level Translation, USB Interface, Bus IsolationIdeal for Low-Power Portable Equipment
Description
AI
The SN74CB3T1G125 is a high-speed TTL-compatible 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. The SN74CB3T1G125 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 SN74CB3T1G125 is a 1-bit bus switch with a single ouput-enable (OE) input. WhenOEis low, the bus switch is ON, and the A port is connected to the B port, allowing bidirectional data flow between ports. WhenOEis high, the 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 Ioff. The Iofffeature 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,OEshould be tied to VCCthrough a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
The SN74CB3T1G125 is a high-speed TTL-compatible 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. The SN74CB3T1G125 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 SN74CB3T1G125 is a 1-bit bus switch with a single ouput-enable (OE) input. WhenOEis low, the bus switch is ON, and the A port is connected to the B port, allowing bidirectional data flow between ports. WhenOEis high, the 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 Ioff. The Iofffeature 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,OEshould be tied to VCCthrough a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.