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SN74AVCH4T245

AKTIV

Bus-Transceiver, 4 Bit, Doppelversorgung, mit konfigurierbarer Spannungsumsetzung und Tri-State-Ausg

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SN74AXCH4T245 AKTIV Bus-Transceiver, 4 Bit, Doppelversorgung Pin-to-pin upgrade with a wider voltage range and improved performance

SN74AVCH4T245

AKTIV
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Produktdetails

Technology family AVC Applications JTAG, SPI, UART Bits (#) 4 High input voltage (min) (V) 1.2 High input voltage (max) (V) 3.6 Vout (min) (V) 1.2 Vout (max) (V) 3.6 Data rate (max) (Mbps) 380 IOH (max) (mA) -12 IOL (max) (mA) 12 Supply current (max) (µA) 16 Features Bus-hold, Overvoltage tolerant inputs, Partial power down (Ioff) Input type Standard CMOS Output type 3-State, Balanced CMOS, Push-Pull Rating Catalog Operating temperature range (°C) -40 to 85
Technology family AVC Applications JTAG, SPI, UART Bits (#) 4 High input voltage (min) (V) 1.2 High input voltage (max) (V) 3.6 Vout (min) (V) 1.2 Vout (max) (V) 3.6 Data rate (max) (Mbps) 380 IOH (max) (mA) -12 IOL (max) (mA) 12 Supply current (max) (µA) 16 Features Bus-hold, Overvoltage tolerant inputs, Partial power down (Ioff) Input type Standard CMOS Output type 3-State, Balanced CMOS, Push-Pull Rating Catalog Operating temperature range (°C) -40 to 85
SOIC (D) 16 59.4 mm² 9.9 x 6 TSSOP (PW) 16 32 mm² 5 x 6.4 TVSOP (DGV) 16 23.04 mm² 3.6 x 6.4 UQFN (RSV) 16 4.68 mm² 2.6 x 1.8 VQFN (RGY) 16 14 mm² 4 x 3.5
  • Control Inputs VIH/VIL Levels are Referenced to
    VCCA Voltage
  • Fully Configurable Dual-Rail Design Allows Each
    Port to Operate Over the Full 1.2V to 3.6V Power-
    Supply Range
  • I/Os Are 4.6V Tolerant
  • Ioff Supports Partial Power-Down-Mode Operation
  • Bus Hold on Data Inputs Eliminates the Need for
    External pull-up/pull-down Resistors
  • Max Data Rates
    • 380 Mbps (1.8 V to 3.3 V Translation)
    • 200 Mbps (<1.8 V to 3.3 V Translation)
    • 200 Mbps (Translate to 2.5 V or 1.8 V)
    • 150 Mbps (Translate to 1.5 V)
    • 100 Mbps (Translate to 1.2 V)
  • Latch-Up Performance Exceeds 100 mA Per
    JESD 78, Class II
  • ESD Protection Exceeds JESD 22
    • 8000 V Human Body Model (A114-A)
    • 200 V Machine Model (A115-A)
    • 1000 V Charged-Device Model (C101)
  • Control Inputs VIH/VIL Levels are Referenced to
    VCCA Voltage
  • Fully Configurable Dual-Rail Design Allows Each
    Port to Operate Over the Full 1.2V to 3.6V Power-
    Supply Range
  • I/Os Are 4.6V Tolerant
  • Ioff Supports Partial Power-Down-Mode Operation
  • Bus Hold on Data Inputs Eliminates the Need for
    External pull-up/pull-down Resistors
  • Max Data Rates
    • 380 Mbps (1.8 V to 3.3 V Translation)
    • 200 Mbps (<1.8 V to 3.3 V Translation)
    • 200 Mbps (Translate to 2.5 V or 1.8 V)
    • 150 Mbps (Translate to 1.5 V)
    • 100 Mbps (Translate to 1.2 V)
  • Latch-Up Performance Exceeds 100 mA Per
    JESD 78, Class II
  • ESD Protection Exceeds JESD 22
    • 8000 V Human Body Model (A114-A)
    • 200 V Machine Model (A115-A)
    • 1000 V Charged-Device Model (C101)

This 4-bit noninverting bus transceiver uses two separate configurable power-supply rails. The A port is designed to track VCCA. VCCA accepts any supply voltage from 1.2 V to 3.6 V. The B port is designed to track VCCB. VCCB accepts any supply voltage from 1.2 V to 3.6 V. The SN74AVCH4T245 is optimized to operate with VCCA/VCCB set at 1.4 V to 3.6 V. It is operational with VCCA/VCCB as low as 1.2 V. This allows for universal low voltage bidirectional translation between any of the 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V voltage nodes.

The SN74AVCH4T245 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 ICC and ICCZ.

The SN74AVCH4T245 device control pins (1DIR, 2DIR, 1OE, and 2OE) are supplied by VCCA.

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

The VCC isolation feature ensures that if either VCC input is at GND, then both ports are in the high-impedance state. The bus-hold circuitry on the powered-up side always stays active.

Active bus-hold circuitry holds unused or undriven data inputs at a valid logic state. Use of pull-up or pull-down resistors with the bus-hold circuitry is not recommended. The bus-hold circuitry on the powered-up side always stays active.

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

This 4-bit noninverting bus transceiver uses two separate configurable power-supply rails. The A port is designed to track VCCA. VCCA accepts any supply voltage from 1.2 V to 3.6 V. The B port is designed to track VCCB. VCCB accepts any supply voltage from 1.2 V to 3.6 V. The SN74AVCH4T245 is optimized to operate with VCCA/VCCB set at 1.4 V to 3.6 V. It is operational with VCCA/VCCB as low as 1.2 V. This allows for universal low voltage bidirectional translation between any of the 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V voltage nodes.

The SN74AVCH4T245 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 ICC and ICCZ.

The SN74AVCH4T245 device control pins (1DIR, 2DIR, 1OE, and 2OE) are supplied by VCCA.

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

The VCC isolation feature ensures that if either VCC input is at GND, then both ports are in the high-impedance state. The bus-hold circuitry on the powered-up side always stays active.

Active bus-hold circuitry holds unused or undriven data inputs at a valid logic state. Use of pull-up or pull-down resistors with the bus-hold circuitry is not recommended. The bus-hold circuitry on the powered-up side always stays active.

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

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Typ Titel Datum
* Data sheet SN74AVCH4T245 4-Bit Dual-Supply Bus Transceiver With Configurable Level-Shifting, Voltage Translation, and 3-State Outputs datasheet (Rev. E) PDF | HTML 25 Nov 2015
Selection guide Voltage Translation Buying Guide (Rev. A) 15 Apr 2021
Selection guide Logic Guide (Rev. AB) 12 Jun 2017
Application note Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) 02 Dez 2015
Application note Voltage Translation Between 3.3-V, 2.5-V, 1.8-V, and 1.5-V Logic Standards (Rev. B) 30 Apr 2015
User guide LOGIC Pocket Data Book (Rev. B) 16 Jan 2007
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
More literature LCD Module Interface Application Clip 09 Mai 2003
User guide AVC Advanced Very-Low-Voltage CMOS Logic Data Book, March 2000 (Rev. C) 20 Aug 2002
More literature Standard Linear & Logic for PCs, Servers & Motherboards 13 Jun 2002
Application note 16-Bit Widebus Logic Families in 56-Ball, 0.65-mm Pitch Very Thin Fine-Pitch BGA (Rev. B) 22 Mai 2002
Application note Dynamic Output Control (DOC) Circuitry Technology And Applications (Rev. B) 07 Jul 1999
Application note AVC Logic Family Technology and Applications (Rev. A) 26 Aug 1998

Design und Entwicklung

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Evaluierungsplatine

14-24-LOGIC-EVM — Generisches Logikprodukt-Evaluierungsmodul für 14-polige bis 24-polige D-, DB-, DGV-, DW-, DYY-, NS-

Das 14-24-LOGIC-EVM-Evaluierungsmodul (EVM) ist für die Unterstützung aller Logikgeräte konzipiert, die sich in einem 14-Pin- bis 24-Pin-D-, DW-, DB-, NS-, PW-, DYY- oder DGV-Gehäuse befinden.

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14-24-NL-LOGIC-EVM — Generisches Logikprodukt-Evaluierungsmodul für 14- bis 24-polige bleifreie Gehäuse

14-24-NL-LOGIC-EVM ist ein flexibles Evaluierungsmodul (EVM), das alle Logik- oder Übersetzungsbausteine mit einem 14- bis 24-poligen BQA-, BQB-, RGY-, RSV-, RJW- oder RHL-Gehäuse unterstützt.

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Evaluierungsplatine

AVCLVCDIRCNTRL-EVM — Generisches EVM für richtungsgesteuerte bidirektionale Umsetzungsgeräte mit Unterstützung für AVC un

The generic EVM is designed to support one, two, four and eight channel LVC and AVC direction-controlled translation devices. It also supports the bus hold and automotive -Q1 devices in the same number of channels. The AVC are low voltage translation devices with lower drive strength of 12mA. LVC (...)

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Simulationsmodell

HSPICE MODEL OF SN74AVCH4T245

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Simulationsmodell

SN74AVCH4T245 IBIS Model

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Referenzdesigns

TIDA-060039 — Referenzdesign für kontaktlose Benutzerschnittstellen mit Inductive Touch und Magnet-Drehregler

Dieses Referenzdesign verwendet induktive und Hall-Effekt-Sensortechnologien, um eine Mensch-Maschine-Schnittstelle bereitzustellen. Die induktiven Sensoren stellen acht verschiedene Touch-Tasten auf einer nahtlosen Oberfläche bereit. Der Hall-Effekt-Sensor wird verwendet, um einen magnetischen (...)
Design guide: PDF
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SOIC (D) 16 Optionen anzeigen
TSSOP (PW) 16 Optionen anzeigen
TVSOP (DGV) 16 Optionen anzeigen
UQFN (RSV) 16 Optionen anzeigen
VQFN (RGY) 16 Optionen anzeigen
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