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Texas Instruments SN74AHC245QDWRG4Q1 — Analog & Data Acquisition

SN74AHC245QDWRG4Q1 Automotive AEC-Q100 Octal Bus Transceiver

MPNSN74AHC245QDWRG4Q1
End of Life

Texas Instruments SN74AHC245QDWRG4Q1, Automotive AEC-Q100 74AHC series, octal bus transceiver, non-inverting, 3-state outputs, 2V to 5.5V supply, 8mA drive, -40°C to 125°C, 20-SOIC package.

$0.99Ref. price · indicative, final on quote
Packaging20-SOIC (0.295", 7.50mm Width)
RoHSROHS3 Compliant
SeriesAutomotive, AEC-Q100, 74AHC
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SN74AHC245QDWRG4Q1 specifications
ParameterValue
SeriesAutomotive, AEC-Q100, 74AHC
Logic typeTransceiver, Non-Inverting
Output type3-State
MountingSurface Mount
Supply voltage2V ~ 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 elements1
Number of bits per element8

Product details

It provides eight non-inverting channels with 3-state outputs, each sourcing or sinking 8mA.

The 8mA output drive per channel is typical for the AHC family — enough to drive standard CMOS inputs, LEDs, or a few low-power loads, but not designed for high-fanout backplanes or long parallel buses. If your bus needs to drive more than a handful of loads, you will need to buffer or step up to the ABT or LVT families which offer higher current. The 3-state outputs allow multiple transceivers to share a bus line without contention, which is standard for multiplexed address/data buses in automotive ECUs or industrial controllers.

For designs that need to survive cold cranking or exhaust-adjacent heat, this grade is the floor, not the ceiling.

For volume production, this is a stable line item with no imminent obsolescence risk.

Frequently asked questions

How does SN74AHC245QDWRG4Q1 compare to SN74AHCT245 or SN74LVC245A?

The SN74AHCT245 is a higher-speed variant with TTL-compatible inputs but a narrower supply range (4.5V to 5.5V). The SN74LVC245A operates down to 1.65V and offers higher drive (24mA typical) but has a narrower temperature range (typically -40°C to 85°C) and is not AEC-Q100 qualified. The AHC variant here is the best fit for automotive 3.3V or 5V systems needing the full 125°C range.