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74ALVCHR16245 Series

16-Bit Bus Transceiver With 3-State Outputs

Manufacturer: Texas Instruments

Catalog(1 parts)

PartOperating TemperatureOperating TemperatureNumber of ElementsNumber of Bits per ElementMounting TypePackage / CasePackage / CasePackage / CaseSupplier Device PackageOutput TypeVoltage - SupplyVoltage - SupplyCurrent - Output High, LowCurrent - Output High, Low
Texas Instruments
SN74ALVCHR16245GR
Transceiver, Non-Inverting 2 Element 8 Bit per Element 3-State Output 48-TSSOP
85 °C
-40 °C
2 ul
8 ul
Surface Mount
0.006099999882280827 m
48-TFSOP
0.006095999851822853 m
48-TSSOP
3-State
3.5999999046325684 V
1.649999976158142 V
0.012000000104308128 A
0.012000000104308128 A

Key Features

Member of the Texas Instruments Widebus™ FamilyOperates From 1.65 V to 3.6 VMax tpdof 4.2 ns at 3.3 V±12-mA Output Drive at 3.3 VAll Outputs Have Equivalent 26-Series Resistors, So No External Resistors Are RequiredBus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown ResistorsLatch-Up Performance Exceeds 250 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.Member of the Texas Instruments Widebus™ FamilyOperates From 1.65 V to 3.6 VMax tpdof 4.2 ns at 3.3 V±12-mA Output Drive at 3.3 VAll Outputs Have Equivalent 26-Series Resistors, So No External Resistors Are RequiredBus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown ResistorsLatch-Up Performance Exceeds 250 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

AI
This 16-bit (dual-octal) noninverting bus transceiver is designed for 1.65-V to 3.6-V VCCoperation. The SN74ALVCHR16245 is designed for asynchronous communication between data buses. The control-function implementation minimizes external timing requirements. This device can be used as two 8-bit transceivers or one 16-bit transceiver. It allows data transmission from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE)\ input can be used to disable the device so that the buses are effectively isolated. All outputs, which are designed to sink up to 12 mA, include equivalent 26-series resistors to reduce overshoot and undershoot. To ensure the high-impedance state during power up or power down, OE\ should be tied to VCCthrough a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. 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. This 16-bit (dual-octal) noninverting bus transceiver is designed for 1.65-V to 3.6-V VCCoperation. The SN74ALVCHR16245 is designed for asynchronous communication between data buses. The control-function implementation minimizes external timing requirements. This device can be used as two 8-bit transceivers or one 16-bit transceiver. It allows data transmission from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE)\ input can be used to disable the device so that the buses are effectively isolated. All outputs, which are designed to sink up to 12 mA, include equivalent 26-series resistors to reduce overshoot and undershoot. To ensure the high-impedance state during power up or power down, OE\ should be tied to VCCthrough a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. 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.