SN74LVTH162244 Series

16-ch, 2.7-V to 3.6-V buffers with bus-hold, TTL-compatible CMOS inputs and 3-state outputs

Catalog

16-ch, 2.7-V to 3.6-V buffers with bus-hold, TTL-compatible CMOS inputs and 3-state outputs

Part	Supplier Device Package	Operating Temperature [Max]	Operating Temperature [Min]	Package / Case	Mounting Type	Voltage - Supply [Min]	Voltage - Supply [Max]	Logic Type	Output Type	Current - Output High, Low [custom]	Current - Output High, Low [custom]	Number of Elements	Number of Bits per Element	Supplier Device Package [x]	Supplier Device Package [y]	Package / Case	Package / Case [custom]	Package / Case [y]	Package / Case [y]
Texas Instruments SN74LVTH162244KR	56-BGA Microstar Junior (7x4.5)	85 °C	-40 °C	56-VFBGA	Surface Mount	2.7 V	3.6 V	Buffer Non-Inverting	3-State	12 mA	12 mA	4	4
Texas Instruments 74LVTH162244ZRDR	54-BGA Microstar Junior	85 °C	-40 °C	54-TFBGA	Surface Mount	2.7 V	3.6 V	Buffer Non-Inverting	3-State	12 mA	12 mA	4	4	8	5.5
Texas Instruments 74LVTH162244GRDR	54-BGA Microstar Junior	85 °C	-40 °C	54-TFBGA	Surface Mount	2.7 V	3.6 V	Buffer Non-Inverting	3-State	12 mA	12 mA	4	4	8	5.5
Texas Instruments 74LVTH162244ZQLR	56-BGA Microstar Junior (7x4.5)	85 °C	-40 °C	56-VFBGA	Surface Mount	2.7 V	3.6 V	Buffer Non-Inverting	3-State	12 mA	12 mA	4	4
Texas Instruments SN74LVTH162244DGGR	48-TSSOP	85 °C	-40 °C	48-TFSOP	Surface Mount	2.7 V	3.6 V	Buffer Non-Inverting	3-State	12 mA	12 mA	4	4			0.24 in	6.1 mm
Texas Instruments SN74LVTH162244DLR	48-SSOP	85 °C	-40 °C	48-BSSOP	Surface Mount	2.7 V	3.6 V	Buffer Non-Inverting	3-State	12 mA	12 mA	4	4					0.295 in	7.5 mm

Catalog

16-ch, 2.7-V to 3.6-V buffers with bus-hold, TTL-compatible CMOS inputs and 3-state outputs

Key Features

• Members of the Texas Instruments Widebus™ FamilyOutput Ports Have Equivalent 22-Series Resistors, So No External Resistors Are RequiredSupport Mixed-Mode Signal Operation (5-V Input and Output Voltages With 3.3-V VCC)Support Unregulated Battery Operation Down to 2.7 VTypical VOLP(Output Ground Bounce) <0.8 V at VCC= 3.3 V, TA= 25°CIoffand Power-Up 3-State Support Hot InsertionBus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown ResistorsDistributed VCCand GND Pins Minimize High-Speed Switching NoiseFlow-Through Architecture Optimizes PCB LayoutLatch-Up Performance Exceeds 500 mA Per JESD 17ESD Protection Exceeds JESD 222000-V Human-Body Model (A114-A)200-V Machine Model (A115-A)Widebus is a trademark of Texas Instruments.Members of the Texas Instruments Widebus™ FamilyOutput Ports Have Equivalent 22-Series Resistors, So No External Resistors Are RequiredSupport Mixed-Mode Signal Operation (5-V Input and Output Voltages With 3.3-V VCC)Support Unregulated Battery Operation Down to 2.7 VTypical VOLP(Output Ground Bounce) <0.8 V at VCC= 3.3 V, TA= 25°CIoffand Power-Up 3-State Support Hot InsertionBus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown ResistorsDistributed VCCand GND Pins Minimize High-Speed Switching NoiseFlow-Through Architecture Optimizes PCB LayoutLatch-Up Performance Exceeds 500 mA Per JESD 17ESD Protection Exceeds JESD 222000-V Human-Body Model (A114-A)200-V Machine Model (A115-A)Widebus is a trademark of Texas Instruments.

Description

The 'LVTH162244 devices are 16-bit buffers and line drivers designed for low-voltage (3.3-V) VCCoperation, but with the capability to provide a TTL interface to a 5-V system environment. These devices can be used as four 4-bit buffers, two 8-bit buffers, or one 16-bit buffer. These devices provide true outputs and symmetrical active-low output-enable (OE) inputs. The outputs, which are designed to source or sink up to 12 mA, include equivalent 22-series resistors to reduce overshoot and undershoot. Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended. When VCCis between 0 and 1.5 V, the devices are in the high-impedance state during power up or power down. However, to ensure the high-impedance state above 1.5 V,OEshould be tied to VCCthrough a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. These devices are fully specified for hot-insertion applications using Ioffand power-up 3-state. The Ioffcircuitry disables the outputs, preventing damaging current backflow through the devices when they are powered down. The power-up 3-state circuitry places the outputs in the high-impedance state during power up and power down, which prevents driver conflict. The 'LVTH162244 devices are 16-bit buffers and line drivers designed for low-voltage (3.3-V) VCCoperation, but with the capability to provide a TTL interface to a 5-V system environment. These devices can be used as four 4-bit buffers, two 8-bit buffers, or one 16-bit buffer. These devices provide true outputs and symmetrical active-low output-enable (OE) inputs. The outputs, which are designed to source or sink up to 12 mA, include equivalent 22-series resistors to reduce overshoot and undershoot. Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended. When VCCis between 0 and 1.5 V, the devices are in the high-impedance state during power up or power down. However, to ensure the high-impedance state above 1.5 V,OEshould be tied to VCCthrough a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. These devices are fully specified for hot-insertion applications using Ioffand power-up 3-state. The Ioffcircuitry disables the outputs, preventing damaging current backflow through the devices when they are powered down. The power-up 3-state circuitry places the outputs in the high-impedance state during power up and power down, which prevents driver conflict.