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Texas Instruments SN74AC245DW — Logic ICs

SN74AC245DW 74AC Transceiver, 2V-6V, 20-SOIC

MPNSN74AC245DW
End of Life

Texas Instruments 74AC series SN74AC245DW, Logic Transceiver, Non-Inverting, 3-State, 8-Bit, 2V to 6V Supply, 24mA Output, -40°C to 85°C, 20-SOIC.

$1.1Ref. price · indicative, final on quote
Texas Instruments SN74AC245DW datasheet (PDF)
Packaging20-SOIC (0.295", 7.50mm Width)
RoHSROHS3 Compliant
Series74AC
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SN74AC245DW specifications
ParameterValue
Series74AC
Logic typeTransceiver, Non-Inverting
Output type3-State
MountingSurface Mount
Supply voltage2V ~ 6V
Current - output high, low24mA, 24mA
Operating temperature-40°C ~ 85°C (TA)
PackageTube
Case20-SOIC (0.295\", 7.50mm Width)
Number of elements1
Number of bits per element8

Product details

8-bit bus transceiver with 2V to 6V rail tolerance

The SN74AC245DW: Housed in a 20-pin SOIC (7.50 mm wide body), it is a common footprint for industrial control boards, telecom line cards, and general-purpose data-bus isolation.

24 mA output drive — what it means for fan-out and signal integrity

The 24 mA per-channel output rating (both high and low) is the practical ceiling for fan-out in a 74AC system.

The 74AC family's CMOS construction keeps quiescent current low across the range — no bipolar shoot-through at temperature extremes.

Frequently asked questions

Will SN74AC245DW drop into a board designed for SN74ABT2245DW?

Yes, the two parts are pin-compatible in the same 20-SOIC footprint. Both are 8-bit non-inverting transceivers with 3-state outputs. The main difference is supply voltage: the 74AC part runs from 2V to 6V, while the 74ABT part is specified for 4.5V to 5.5V only. At 5V, either works, but the 74AC part delivers 24 mA output drive versus 32 mA for the ABT variant. Check your load current budget before substituting.