SN74CB3T16210 Series

3.3-V, crosspoint/exchange, 20-channel FET bus switch with level shifter

Catalog

3.3-V, crosspoint/exchange, 20-channel FET bus switch with level shifter

Part	Circuit	Circuit	Mounting Type	Operating Temperature [Max]	Operating Temperature [Min]	Type	Voltage Supply Source	Package / Case	Package / Case	Voltage - Supply [Min]	Voltage - Supply [Max]	Independent Circuits	Supplier Device Package	Package / Case [custom]
Texas Instruments SN74CB3T16210DGVR	10	1:1	Surface Mount	85 °C	-40 °C	Bus Switch	Single Supply	0.173 in 4.4 mm	48-TFSOP	2.3 V	3.6 V	2
Texas Instruments 74CB3T16210DGGRG4	10	1:1	Surface Mount	85 °C	-40 °C	Bus Switch	Single Supply	0.24 in	48-TFSOP	2.3 V	3.6 V	2	48-TSSOP	6.1 mm
Texas Instruments SN74CB3T16210DGGR	10	1:1	Surface Mount	85 °C	-40 °C	Bus Switch	Single Supply	0.24 in	48-TFSOP	2.3 V	3.6 V	2	48-TSSOP	6.1 mm

Catalog

3.3-V, crosspoint/exchange, 20-channel FET bus switch with level shifter

Key Features

• Member of the Texas Instruments Widebus FamilyOutput 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-VVCC5-V/3.3-V Input Down to 2.5-V Output Level Shift With 2.5-VVCC5-V-Tolerant I/Os With Device Powered Up or Powered DownBidirectional Data Flow With Near-Zero Propagation DelayLow ON-State Resistance (ron) Characteristics(ron= 5 Ω Typ)Low Input/Output Capacitance Minimizes Loading(Cio(OFF)= 5 pF Typ)Data and Control Inputs Provide Undershoot Clamp DiodesLow Power Consumption(ICC= 40 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, PCI Interface, USB Interface,Memory Interleaving, and Bus IsolationIdeal for Low-Power Portable EquipmentWidebus is a trademark of Texas Instruments.Member of the Texas Instruments Widebus FamilyOutput 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-VVCC5-V/3.3-V Input Down to 2.5-V Output Level Shift With 2.5-VVCC5-V-Tolerant I/Os With Device Powered Up or Powered DownBidirectional Data Flow With Near-Zero Propagation DelayLow ON-State Resistance (ron) Characteristics(ron= 5 Ω Typ)Low Input/Output Capacitance Minimizes Loading(Cio(OFF)= 5 pF Typ)Data and Control Inputs Provide Undershoot Clamp DiodesLow Power Consumption(ICC= 40 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, PCI Interface, USB Interface,Memory Interleaving, and Bus IsolationIdeal for Low-Power Portable EquipmentWidebus is a trademark of Texas Instruments.

Description

The SN74CB3T16210 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 SN74CB3T16210 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 ). The SN74CB3T16210 is organized as two 10-bit bus switches with separate ouput-enable (1OE, 2OE) inputs. It can be used as two 10-bit bus switches or as one 20-bit bus switch. WhenOEis low, the associated 10-bit bus switch is ON, and the A port is connected to the B port, allowing bidirectional data flow between ports. WhenOEis high, the associated 10-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 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 SN74CB3T16210 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 SN74CB3T16210 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 ). The SN74CB3T16210 is organized as two 10-bit bus switches with separate ouput-enable (1OE, 2OE) inputs. It can be used as two 10-bit bus switches or as one 20-bit bus switch. WhenOEis low, the associated 10-bit bus switch is ON, and the A port is connected to the B port, allowing bidirectional data flow between ports. WhenOEis high, the associated 10-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 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.