SN74LVCH16T245-EP Series

Enhanced Product 16-Bit Dual-Supply Bus Transc., Configurable Voltage Translation, 3-State Outputs

Catalog

Enhanced Product 16-Bit Dual-Supply Bus Transc., Configurable Voltage Translation, 3-State Outputs

Part	Mounting Type	Operating Temperature [Max]	Operating Temperature [Min]	Number of Elements	Package / Case [y]	Package / Case	Package / Case [y]	Output Type	Number of Bits per Element	Current - Output High, Low [y]	Current - Output High, Low [x]	Supplier Device Package	Voltage - Supply [Max]	Voltage - Supply [Min]	Logic Type	Package / Case	Package / Case [custom]
Texas Instruments SN74LVCH16T245DLR	Surface Mount	85 °C	-40 °C	2	0.295 in	48-BSSOP	7.5 mm	3-State	8	32 mA	32 mA	48-SSOP	5.5 V	1.65 V	Translation Transceiver
Texas Instruments 74LVCH16T245DGGRE4	Surface Mount	85 °C	-40 °C	2		48-TFSOP		3-State	8	32 mA	32 mA	48-TSSOP	5.5 V	1.65 V	Translation Transceiver	0.24 in	6.1 mm
Texas Instruments SN74LVCH16T245DL	Surface Mount	85 °C	-40 °C	2	0.295 in	48-BSSOP	7.5 mm	3-State	8	32 mA	32 mA	48-SSOP	5.5 V	1.65 V	Translation Transceiver
Texas Instruments SN74LVCH16T245KR	Surface Mount	85 °C	-40 °C	2		56-VFBGA		3-State	8	32 mA	32 mA	56-BGA Microstar Junior (7x4.5)	5.5 V	1.65 V	Translation Transceiver
Texas Instruments 74LVCH16T245ZQLR	Surface Mount	85 °C	-40 °C	2		56-VFBGA		3-State	8	32 mA	32 mA	56-BGA Microstar Junior (7x4.5)	5.5 V	1.65 V	Translation Transceiver
Texas Instruments 74LVCH16T245DLG4	Surface Mount	85 °C	-40 °C	2	0.295 in	48-BSSOP	7.5 mm	3-State	8	32 mA	32 mA	48-SSOP	5.5 V	1.65 V	Translation Transceiver
Texas Instruments CLVCH16T245MDGGREP	Surface Mount	85 °C	-40 °C	2		48-TFSOP		3-State	8	32 mA	32 mA	48-TSSOP	5.5 V	1.65 V	Translation Transceiver	0.24 in	6.1 mm
Texas Instruments CLVCH16T245MDGVREP	Surface Mount	85 °C	-40 °C	2		48-TFSOP		3-State	8	32 mA	32 mA		5.5 V	1.65 V	Translation Transceiver	0.173 in 4.4 mm
Texas Instruments SN74LVCH16T245DGGR	Surface Mount	85 °C	-40 °C	2		48-TFSOP		3-State	8	32 mA	32 mA	48-TSSOP	5.5 V	1.65 V	Translation Transceiver	0.24 in	6.1 mm

Catalog

Enhanced Product 16-Bit Dual-Supply Bus Transc., Configurable Voltage Translation, 3-State Outputs

Key Features

• Control Inputs VIH/VILLevels AreReferenced to VCCAVoltageVCCIsolation Feature – If Either VCCInput Is at GND, All Outputs Are in theHigh-Impedance StateOvervoltage-Tolerant Inputs/Outputs AllowMixed-Voltage-Mode Data CommunicationsFully Configurable Dual-Rail Design AllowsEach Port to Operate Over the Full 1.65-V to5.5-V Power-Supply RangeBus Hold on Data Inputs Eliminates the Needfor External Pullup/Pulldown ResistorsIoffSupports Partial-Power-DownMode OperationLatch-Up Performance Exceeds 100 mAPer JESD 78, Class IIESD Protection Exceeds JESD 222000-V Human-Body Model (A114-A)200-V Machine Model (A115-A)1000-V Charged-Device Model (C101)SUPPORTS DEFENSE, AEROSPACE, AND MEDICAL APPLICATIONSControlled BaselineOne Assembly/Test SiteOne Fabrication SiteAvailable in Military (–55°C/125°C)Temperature Range(1)Extended Product Life CycleExtended Product-Change NotificationProduct Traceability(1)Custom temperature ranges availableControl Inputs VIH/VILLevels AreReferenced to VCCAVoltageVCCIsolation Feature – If Either VCCInput Is at GND, All Outputs Are in theHigh-Impedance StateOvervoltage-Tolerant Inputs/Outputs AllowMixed-Voltage-Mode Data CommunicationsFully Configurable Dual-Rail Design AllowsEach Port to Operate Over the Full 1.65-V to5.5-V Power-Supply RangeBus Hold on Data Inputs Eliminates the Needfor External Pullup/Pulldown ResistorsIoffSupports Partial-Power-DownMode OperationLatch-Up Performance Exceeds 100 mAPer JESD 78, Class IIESD Protection Exceeds JESD 222000-V Human-Body Model (A114-A)200-V Machine Model (A115-A)1000-V Charged-Device Model (C101)SUPPORTS DEFENSE, AEROSPACE, AND MEDICAL APPLICATIONSControlled BaselineOne Assembly/Test SiteOne Fabrication SiteAvailable in Military (–55°C/125°C)Temperature Range(1)Extended Product Life CycleExtended Product-Change NotificationProduct Traceability(1)Custom temperature ranges available

Description

This 16-bit noninverting bus transceiver uses two separate configurable power-supply rails. The A port is designed to track VCCA. VCCAaccepts any supply voltage from 1.65 V to 5.5 V. The B port is designed to track VCCB. VCCBaccepts any supply voltage from 1.65 V to 5.5 V. This allows for universal low-voltage bidirectional translation between any of the 1.8-V, 2.5-V, 3.3-V, and 5-V voltage nodes. The SN74LVCH16T245 is designed so that the control pins (1DIR, 2DIR, 1OE, and 2OE) are supplied by VCCA. The SN74LVCH16T245 is designed for asynchronous communication between two data buses. The logic levels of the direction-control (DIR) input and the output-enable (OE) input activate either the B-port outputs or the A-port outputs or place both output ports into the high-impedance mode. The device transmits data from the A bus to the B bus when the B-port outputs are activated, and from the B bus to the A bus when the A-port outputs are activated. The input circuitry on both A and B ports is always active and must have a logic HIGH or LOW level applied to prevent excess ICCand ICCZ. Active bus-hold circuitry holds unused or undriven data inputs at a valid logic state. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended. This device is fully specified for partial-power-down applications using Ioff. The Ioffcircuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. The VCCisolation feature ensures that if either VCCinput is at GND, then all outputs are in the high-impedance state. The bus-hold circuitry on the powered-up side always stays active. 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. This 16-bit noninverting bus transceiver uses two separate configurable power-supply rails. The A port is designed to track VCCA. VCCAaccepts any supply voltage from 1.65 V to 5.5 V. The B port is designed to track VCCB. VCCBaccepts any supply voltage from 1.65 V to 5.5 V. This allows for universal low-voltage bidirectional translation between any of the 1.8-V, 2.5-V, 3.3-V, and 5-V voltage nodes. The SN74LVCH16T245 is designed so that the control pins (1DIR, 2DIR, 1OE, and 2OE) are supplied by VCCA. The SN74LVCH16T245 is designed for asynchronous communication between two data buses. The logic levels of the direction-control (DIR) input and the output-enable (OE) input activate either the B-port outputs or the A-port outputs or place both output ports into the high-impedance mode. The device transmits data from the A bus to the B bus when the B-port outputs are activated, and from the B bus to the A bus when the A-port outputs are activated. The input circuitry on both A and B ports is always active and must have a logic HIGH or LOW level applied to prevent excess ICCand ICCZ. Active bus-hold circuitry holds unused or undriven data inputs at a valid logic state. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended. This device is fully specified for partial-power-down applications using Ioff. The Ioffcircuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. The VCCisolation feature ensures that if either VCCinput is at GND, then all outputs are in the high-impedance state. The bus-hold circuitry on the powered-up side always stays active. 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.