SN74AVC16245

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Bustransceiver, 16 Bit, mit 3-State-Ausgängen

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Datenblatt

document-pdfAcrobat 16-Bit Bus Transceiver With 3-State Outputs datasheet (Rev. L) (Englisch)

SN74AVC16245

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

Number of channels

16

IOL (max) (mA)

12

IOH (max) (mA)

-12

Input type

CMOS

Output type

CMOS

Features

Balanced outputs, Over-voltage tolerant inputs, Partial power down (Ioff), Ultra high speed (tpd <5ns)

Technology family

AVC

Rating

Catalog

Operating temperature range (°C)

-40 to 85

Number of channels

16

IOL (max) (mA)

12

IOH (max) (mA)

-12

Input type

CMOS

Output type

CMOS

Features

Balanced outputs, Over-voltage tolerant inputs, Partial power down (Ioff), Ultra high speed (tpd <5ns)

Technology family

AVC

Rating

Catalog

Operating temperature range (°C)

-40 to 85

TVSOP (DGV)

48

62.08 mm² (9.7 mm × 6.4 mm)

TSSOP (DGG)

48

101.25 mm² (12.5 mm × 8.1 mm)

Member of the Texas Instruments Widebus^TM Family
EPIC^TM (Enhanced-Performance Implanted CMOS) Submicron Process
DOC^TM (Dynamic Output Control) Circuit Dynamically Changes Output Impedance, Resulting in Noise Reduction Without Speed Degradation
Less Than 2-ns Maximum Propagation Delay at 2.5-V and 3.3-V V_CC
Dynamic Drive Capability Is Equivalent to Standard Outputs With I_OH and I_OL of ±24 mA at 2.5-V V_CC
Overvoltage-Tolerant Inputs/Outputs Allow Mixed-Voltage-Mode Data Communications
I_off Supports Partial-Power-Down Mode Operation
ESD Protection Exceeds JESD 22
- 2000-V Human-Body Model (A114-A)
- 200-V Machine Model (A115-A)
Latch-Up Performance Exceeds 250 mA Per JESD 78
Package Options Include Plastic Thin Shrink Small-Outline (DGG) and Thin Very Small-Outline (DGV) Packages
DOC, EPIC, and Widebus are trademarks of Texas Instruments Incorporated.

Member of the Texas Instruments Widebus^TM Family
EPIC^TM (Enhanced-Performance Implanted CMOS) Submicron Process
DOC^TM (Dynamic Output Control) Circuit Dynamically Changes Output Impedance, Resulting in Noise Reduction Without Speed Degradation
Less Than 2-ns Maximum Propagation Delay at 2.5-V and 3.3-V V_CC
Dynamic Drive Capability Is Equivalent to Standard Outputs With I_OH and I_OL of ±24 mA at 2.5-V V_CC
Overvoltage-Tolerant Inputs/Outputs Allow Mixed-Voltage-Mode Data Communications
I_off Supports Partial-Power-Down Mode Operation
ESD Protection Exceeds JESD 22
- 2000-V Human-Body Model (A114-A)
- 200-V Machine Model (A115-A)
Latch-Up Performance Exceeds 250 mA Per JESD 78
Package Options Include Plastic Thin Shrink Small-Outline (DGG) and Thin Very Small-Outline (DGV) Packages
DOC, EPIC, and Widebus are trademarks of Texas Instruments Incorporated.

A Dynamic Output Control (DOC) circuit is implemented, which, during the transition, initially lowers the output impedance to effectively drive the load and, subsequently, raises the impedance to reduce noise. Figure 1 shows typical V_OL vs I_OL and V_OH vs I_OH curves to illustrate the output impedance and drive capability of the circuit. At the beginning of the signal transition, the DOC circuit provides a maximum dynamic drive that is equivalent to a high-drive standard-output device. For more information, refer to the TI application reports, AVC Logic Family Technology and Applications, literature number SCEA006, and Dynamic Output Control (DOC^TM) Circuitry Technology and Applications, literature number SCEA009.

This 16-bit (dual octal) noninverting bus transceiver is operational at 1.2-V to 3.6-V V_CC, but is designed specifically for 1.65-V to 3.6-V V_CC operation.

The SN74AVC16245 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.

To ensure the high-impedance state during power up or power down, OE\ should be tied to V_CC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

This device is fully specified for partial-power-down applications using I_off. The I_off circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.

The SN74AVC16245 is characterized for operation from -40°C to 85°C.

A Dynamic Output Control (DOC) circuit is implemented, which, during the transition, initially lowers the output impedance to effectively drive the load and, subsequently, raises the impedance to reduce noise. Figure 1 shows typical V_OL vs I_OL and V_OH vs I_OH curves to illustrate the output impedance and drive capability of the circuit. At the beginning of the signal transition, the DOC circuit provides a maximum dynamic drive that is equivalent to a high-drive standard-output device. For more information, refer to the TI application reports, AVC Logic Family Technology and Applications, literature number SCEA006, and Dynamic Output Control (DOC^TM) Circuitry Technology and Applications, literature number SCEA009.

This 16-bit (dual octal) noninverting bus transceiver is operational at 1.2-V to 3.6-V V_CC, but is designed specifically for 1.65-V to 3.6-V V_CC operation.

The SN74AVC16245 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.

To ensure the high-impedance state during power up or power down, OE\ should be tied to V_CC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

This device is fully specified for partial-power-down applications using I_off. The I_off circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.

The SN74AVC16245 is characterized for operation from -40°C to 85°C.

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Top-Dokumentation	Typ	Titel	Format-Optionen	Neueste englische Version herunterladen	Datum
*	Datenblatt	16-Bit Bus Transceiver With 3-State Outputs datasheet (Rev. L)			21.02.2000

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