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SN74AHC245-Q1

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Automotive, 2V to 5.5V octal bus transceivers with tri-state outputs

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Data sheet

SN74AHC245-Q1

ACTIVE
Data sheet Order now

Product details

Number of channels 8 IOL (max) (mA) 8 IOH (max) (mA) -8 Input type LVTTL/CMOS Output type CMOS Features Balanced outputs, Over-voltage tolerant inputs, Very high speed (tpd 5-10ns) Technology family AHC Rating Automotive Operating temperature range (°C) -40 to 125
Number of channels 8 IOL (max) (mA) 8 IOH (max) (mA) -8 Input type LVTTL/CMOS Output type CMOS Features Balanced outputs, Over-voltage tolerant inputs, Very high speed (tpd 5-10ns) Technology family AHC Rating Automotive Operating temperature range (°C) -40 to 125
TSSOP (PW) 20 41.6 mm² (6.5 mm × 6.4 mm) VQFN (RKS) 20 11.25 mm² (4.5 mm × 2.5 mm) VSSOP (DGS) 20 24.99 mm² (5.1 mm × 4.9 mm)
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C6
  • Operating range 2V to 5.5V VCC
  • Latch-up performance exceeds 250mA per JESD 17
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C6
  • Operating range 2V to 5.5V VCC
  • Latch-up performance exceeds 250mA per JESD 17

The SN74AHC245-Q1 octal bus transceiver is designed for asynchronous two-way communication between data buses. The control-function implementation minimizes external timing requirements. This device 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 effectively are isolated.

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

The SN74AHC245-Q1 octal bus transceiver is designed for asynchronous two-way communication between data buses. The control-function implementation minimizes external timing requirements. This device 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 effectively are isolated.

To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
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* Data sheet SN74AHC245-Q1 Automotive Octal Bus Transceivers With 3-State Outputs datasheet (Rev. F) PDF | HTML Jun 3, 2025

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