SN74AUCH245

Name: SN74AUCH245
Brand: TI
SKU: SN74AUCH245
Price: 0.458 USD

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Transceptor de bus octal con salidas de 3 estados

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SN74AUCH245

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Detalles del producto

Supply voltage (min) (V)

0.8

Supply voltage (max) (V)

2.7

Number of channels

8

IOL (max) (mA)

9

IOH (max) (mA)

-9

Input type

CMOS

Output type

CMOS

Features

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

Technology family

AUC

Rating

Catalog

Operating temperature range (°C)

-40 to 85

Supply voltage (min) (V)

0.8

Supply voltage (max) (V)

2.7

Number of channels

8

IOL (max) (mA)

9

IOH (max) (mA)

-9

Input type

CMOS

Output type

CMOS

Features

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

Technology family

AUC

Rating

Catalog

Operating temperature range (°C)

-40 to 85

VQFN (RGY)

20

15.75 mm² 4.5 x 3.5

Optimized for 1.8-V Operation and Is 3.6-V I/O Tolerant to Support Mixed-Mode Signal Operation
I_off Supports Partial-Power-Down Mode Operation
Sub 1-V Operable
Max t_pd of 2 ns at 1.8 V
Low Power Consumption, 20-µA Max I_CC
±8-mA Output Drive at 1.8 V
Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors
Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
ESD Protection Exceeds JESD 22
- 2000-V Human-Body Model (A114-A)
- 200-V Machine Model (A115-A)
- 1000-V Charged-Device Model (C101)

Optimized for 1.8-V Operation and Is 3.6-V I/O Tolerant to Support Mixed-Mode Signal Operation
I_off Supports Partial-Power-Down Mode Operation
Sub 1-V Operable
Max t_pd of 2 ns at 1.8 V
Low Power Consumption, 20-µA Max I_CC
±8-mA Output Drive at 1.8 V
Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors
Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
ESD Protection Exceeds JESD 22
- 2000-V Human-Body Model (A114-A)
- 200-V Machine Model (A115-A)
- 1000-V Charged-Device Model (C101)

This octal bus transceiver is operational at 0.8-V to 2.7-V V_CC, but is designed specifically for 1.65-V to 1.95-V V_CC operation.

The SN74AUCH245 is designed for asynchronous communication between data buses. The device transmits data 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 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.

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 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.

This octal bus transceiver is operational at 0.8-V to 2.7-V V_CC, but is designed specifically for 1.65-V to 1.95-V V_CC operation.

The SN74AUCH245 is designed for asynchronous communication between data buses. The device transmits data 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 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.

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 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.

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Documentación técnica

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	Tipo	Título	Fecha
*	Data sheet	SN74AUCH245 datasheet	31 dic 2002
	Selection guide	Little Logic Guide 2018 (Rev. G)	06 jul 2018
	Selection guide	Logic Guide (Rev. AB)	12 jun 2017
	Application note	How to Select Little Logic (Rev. A)	26 jul 2016
	Application note	Understanding and Interpreting Standard-Logic Data Sheets (Rev. C)	02 dic 2015
	User guide	LOGIC Pocket Data Book (Rev. B)	16 ene 2007
	Product overview	Design Summary for WCSP Little Logic (Rev. B)	04 nov 2004
	Application note	Semiconductor Packing Material Electrostatic Discharge (ESD) Protection	08 jul 2004
	Application note	Selecting the Right Level Translation Solution (Rev. A)	22 jun 2004
	User guide	Signal Switch Data Book (Rev. A)	14 nov 2003
	Application note	Designing With TI Ultra-Low-Voltage CMOS (AUC) Octals and Widebus Devices	21 mar 2003
	User guide	AUC Data Book, January 2003 (Rev. A)	01 ene 2003
	Application note	Texas Instruments Little Logic Application Report	01 nov 2002
	Application note	TI IBIS File Creation, Validation, and Distribution Processes	29 ago 2002
	More literature	Standard Linear & Logic for PCs, Servers & Motherboards	13 jun 2002
	More literature	STANDARD LINEAR AND LOGIC FOR DVD/VCD PLAYERS	27 mar 2002
	More literature	AUC Product Brochure (Rev. A)	18 mar 2002

Diseño y desarrollo

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Placa de evaluación

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14-24-NL-LOGIC-EVM es un módulo de evaluación (EVM) flexible diseñado para admitir cualquier dispositivo lógico o de traducción que tenga un encapsulado BQA, BQB, RGY, RSV, RJW o RHL de 14 a 24 pines.

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