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Texas Instruments CAHCT244QDWRG4Q1 — Logic ICs

CAHCT244QDWRG4Q1 Buffer, Non-Inverting, 3-State, 20-SOIC

MPNCAHCT244QDWRG4Q1
End of Life

Texas Instruments Automotive, AEC-Q100, 74AHCT series, CAHCT244QDWRG4Q1, Buffer, Non-Inverting, 3-State, 4.5V ~ 5.5V supply, 8mA output, -40°C to 125°C, 20-SOIC.

$0.88Ref. price · indicative, final on quote
Packaging20-SOIC (0.295", 7.50mm Width)
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

CAHCT244QDWRG4Q1 Technical Specifications
ParameterValue
SeriesAutomotive, AEC-Q100, 74AHCT
Logic typeBuffer, Non-Inverting
Output type3-State
Mounting typeSurface Mount
Voltage4.5V ~ 5.5V
Current - output high, low8mA, 8mA
Operating temperature-40°C ~ 125°C (TA)
PackageTape & Reel (TR); Cut Tape (CT)
Case20-SOIC (0.295\", 7.50mm Width)
Number of elements2
Number of bits per element4

Product details

Automotive-grade 74AHCT buffer for 5V logic buses

The two elements each buffer four bits, giving you an 8-bit wide bus driver in a single 20-SOIC package.

Each output sources or sinks 8 mA, which is the standard drive strength for the 74AHCT family. That is enough to drive a few CMOS logic inputs or a short PCB trace, but not a long backplane or a high-capacitance load like a relay coil. If your downstream load needs more than 8 mA per line, you will need a separate line driver or a higher-drive part like the SN74LVTH16245ADGVR which offers 32 mA per channel. The 3-state outputs let you share the bus with other drivers — when the output enable is deasserted, the pins go high-impedance and the bus floats.

Temperature range and automotive qualification

If you are designing for a passenger cabin application that only needs 85°C, this part still works, but you are paying for the wider range.

Lifecycle and sourcing

If you need a cross-reference for spot-buying, the SN74AHCT244 from TI is the same function in the same package — just verify the temperature grade matches your BOM requirement.

Frequently asked questions

Is CAHCT244QDWRG4Q1 compatible with 5V logic systems?

Yes, the supply voltage range is 4.5V to 5.5V, so it operates directly from a 5V rail. The inputs and outputs are 5V-tolerant, and the 3-state outputs let you connect to a shared bus without contention.

Does CAHCT244QDWRG4Q1 have a replacement or cross reference part?

The SN74AHCT244 from Texas Instruments is a functional equivalent in the same 20-SOIC package and 74AHCT logic family. Verify the temperature grade matches your requirement — the standard SN74AHCT244 is typically rated to 85°C, while this part goes to 125°C.

Is CAHCT244QDWRG4Q1 RoHS compliant?

Yes, it is ROHS3 compliant per the lifecycle record.