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Texas Instruments SN74AVCH4T245DR — Memory (DRAM / SRAM / Flash / EEPROM)

SN74AVCH4T245DR Translation Transceiver, 1.2V-3.6V, 16-SOIC

MPNSN74AVCH4T245DR
End of Life

Texas Instruments 74AVCH series, Translation Transceiver, 3.6V, 4 bit per element, 2 element, 16-SOIC, Surface Mount, -40°C to 85°C.

$1.65Ref. price · indicative, final on quote
Texas Instruments SN74AVCH4T245DR datasheet (PDF)
Packaging16-SOIC (0.154", 3.90mm Width)
RoHSROHS3 Compliant
Series74AVCH
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SN74AVCH4T245DR specifications
ParameterValue
Series74AVCH
Logic typeTranslation Transceiver
Output type3-State
MountingSurface Mount
Supply voltage1.2V ~ 3.6V
Current - output high, low12mA, 12mA
Operating temperature-40°C ~ 85°C (TA)
PackageTape & Reel (TR); Cut Tape (CT)
Case16-SOIC (0.154\", 3.90mm Width)
Number of elements2
Number of bits per element4

Product details

The SN74AVCH4T245DR: Each channel sources or sinks 12 mA. That is typical for the 74AVCH family — enough to drive a few CMOS inputs or a short trace, but not a heavily loaded backplane or a long cable. If your bus has more than three or four loads, or runs longer than a few inches, you will want a buffer after this transceiver. The 3-state output lets you share the bus with other devices; the output goes high-impedance when the output-enable pin is deasserted.

16-SOIC, 0.154-inch body width, 3.90 mm. Standard SOIC-16 footprint — no surprises for the pick-and-place or the reflow profile. The Tape & Reel option (TR) is the production-friendly reel; Cut Tape (CT) is available for prototypes or small runs. Both are surface-mount; no through-hole variant exists for this part.

Frequently asked questions

Is SN74AVCH4T245DR RoHS compliant?

Yes, it is ROHS3 compliant.

What is the difference between SN74AVCH4T245DR and TXB0104?

Both are 4-bit bidirectional voltage translators. The SN74AVCH4T245DR uses a direction-sensing architecture without a direction pin; the TXB0104 also uses auto-direction sensing but has a different output-drive architecture and a different supply-voltage range. The SN74AVCH4T245DR is from the 74AVCH family; the TXB0104 is from the TXB family. For a direct comparison, check the respective datasheets for output drive, propagation delay, and quiescent current.

Is SN74AVCH4T245DR a direct replacement for SN74AVCH4T245?

The SN74AVCH4T245DR is the Tape & Reel variant of the base SN74AVCH4T245. The die and electrical specifications are identical; the only difference is the packaging format — Tape & Reel versus tube or other. It is a drop-in replacement on the PCB.