SN74AVC4T245-Q1

AKTIV

4-Bit-Automobil-Bustransceiver mit Doppelversorgung und konfigurierbarer Spannungsumsetzung

Eine neuere Version dieses Produkts ist verfügbar

Drop-In-Ersatz mit gegenüber dem verglichenen Baustein verbesserter Funktionalität.
SN74AXC4T245-Q1 AKTIV Bustransceiver f. Automobilind., 4 Bit, Doppelversorgung, m. konfig. Spannungsums., Tri-State-Ausg. A newer version available with wider operating voltage range

SN74AVC4T245-Q1

AKTIV

Produktdetails

Bits (#) 4 Data rate (max) (Mbps) 500 Topology Push-Pull Direction control (typ) Direction-controlled Vin (min) (V) 1.2 Vin (max) (V) 3.6 Vout (min) (V) 1.2 Vout (max) (V) 3.6 Applications GPIO, I2S, JTAG, PCM, SPI, UART Features Output enable, Partial power down (Ioff) Prop delay (ns) 2 Technology family AVC Supply current (max) (mA) 0.016 Rating Automotive Operating temperature range (°C) -40 to 125
Bits (#) 4 Data rate (max) (Mbps) 500 Topology Push-Pull Direction control (typ) Direction-controlled Vin (min) (V) 1.2 Vin (max) (V) 3.6 Vout (min) (V) 1.2 Vout (max) (V) 3.6 Applications GPIO, I2S, JTAG, PCM, SPI, UART Features Output enable, Partial power down (Ioff) Prop delay (ns) 2 Technology family AVC Supply current (max) (mA) 0.016 Rating Automotive Operating temperature range (°C) -40 to 125
VQFN (RGY) 16 14 mm² (4 mm × 3.5 mm) TSSOP (PW) 16 32 mm² (5 mm × 6.4 mm) WQFN (BQB) 16 8.75 mm² (3.5 mm × 2.5 mm) SOT-23-THN (DYY) 16 8.4 mm² (4.2 mm × 2 mm)
  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to 125°C ambient operating temperature range
    • Device HBM ESD classification level H3B (JESD 22 A114-A)
    • Device CDM ESD classification level C5 (JESD 22 C101)
  • Function safety capable
  • Control input VIH and 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
  • Maximum data rates:
    • 380Mbps (1.8V to 3.3V translation)
    • 200Mbps (<1.8V to 3.3V translation)
    • 200Mbps (translate to 2.5V or 1.8V)
    • 150Mbps (translate to 1.5V)
    • 100Mbps (translate to 1.2V)
  • Latch-up performance exceeds 100mA per JESD 78, Class II
  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to 125°C ambient operating temperature range
    • Device HBM ESD classification level H3B (JESD 22 A114-A)
    • Device CDM ESD classification level C5 (JESD 22 C101)
  • Function safety capable
  • Control input VIH and 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
  • Maximum data rates:
    • 380Mbps (1.8V to 3.3V translation)
    • 200Mbps (<1.8V to 3.3V translation)
    • 200Mbps (translate to 2.5V or 1.8V)
    • 150Mbps (translate to 1.5V)
    • 100Mbps (translate to 1.2V)
  • Latch-up performance exceeds 100mA per JESD 78, Class II

This 4-bit non-inverting bus transceiver uses two separate configurable power-supply rails. The A port is designed to track VCCA. VCCA accepts any supply voltage from 1.2V to 3.6V. The B port is designed to track VCCB. VCCB accepts any supply voltage from 1.2V to 3.6V. The SN74AVC4T245-Q1 is optimized to operate with VCCA/VCCB set at 1.4V to 3.6V. It is operational with VCCA/VCCB as low as 1.2V. 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 SN74AVC4T245-Q1 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 SN74AVC4T245-Q1 is designed so that the control pins (1DIR, 2DIR, 1 OE, and 2 OE) 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 design of the VCC isolation feature places both ports in the high-impedance state if either VCC input is at GND.

To place the device in the high-impedance state during power up or power down, tie OE to VCC through a pullup resistor; the current-sinking capability of the driver determines the minimum value of the resistor.

This 4-bit non-inverting bus transceiver uses two separate configurable power-supply rails. The A port is designed to track VCCA. VCCA accepts any supply voltage from 1.2V to 3.6V. The B port is designed to track VCCB. VCCB accepts any supply voltage from 1.2V to 3.6V. The SN74AVC4T245-Q1 is optimized to operate with VCCA/VCCB set at 1.4V to 3.6V. It is operational with VCCA/VCCB as low as 1.2V. 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 SN74AVC4T245-Q1 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 SN74AVC4T245-Q1 is designed so that the control pins (1DIR, 2DIR, 1 OE, and 2 OE) 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 design of the VCC isolation feature places both ports in the high-impedance state if either VCC input is at GND.

To place the device in the high-impedance state during power up or power down, tie OE to VCC through a pullup resistor; the current-sinking capability of the driver determines the minimum value of the resistor.

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Technische Dokumentation

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Top-Dokumentation Typ Titel Format-Optionen Neueste englische Version herunterladen Datum
* Datenblatt SN74AVC4T245-Q1 Automotive 4-Bit Dual-Supply Bus Transceiver with Configurable Voltage Translation and 3-State Outputs datasheet (Rev. D) PDF | HTML 12.05.2026
Anwendungshinweis Schematic Checklist - A Guide to Designing With Fixed or Direction Control Translators PDF | HTML 02.10.2024
Anwendungshinweis Schematic Checklist - A Guide to Designing with Auto-Bidirectional Translators PDF | HTML 12.07.2024
Anwendungshinweis Understanding Transient Drive Strength vs. DC Drive Strength in Level-Shifters (Rev. A) PDF | HTML 03.07.2024
Informationen zur funktionalen Sicherheit SN74AVC4T245-Q1 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML 18.04.2024
Auswahlhilfe Voltage Translation Buying Guide (Rev. A) 15.04.2021
Informationen zur funktionalen Sicherheit SN74AVC4T245-Q1 Functional Safety FIT Rate and Failure Mode Distribution 30.12.2019
Weitere Dokumente Automotive Logic Devices Brochure 27.08.2014

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Simulationsmodell

SN74AVC4T245 IBIS Model (Rev. B)

SCEM503B.ZIP (68 KB) - IBIS-Modell
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Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
VQFN (RGY) 16 Ultra Librarian
TSSOP (PW) 16 Ultra Librarian
WQFN (BQB) 16 Ultra Librarian
SOT-23-THN (DYY) 16 Ultra Librarian

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