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Texas Instruments SN74LV244ATPW — Logic ICs

SN74LV244ATPW 74LV Buffer, Non-Inverting, 3-State, 20-TSSOP

MPNSN74LV244ATPW
End of Life

Texas Instruments 74LV series, SN74LV244ATPW, Buffer, Non-Inverting, 3-State, 4.5V ~ 5.5V supply, 16mA output, -40°C ~ 85°C, Surface Mount 20-TSSOP package.

$1.34Ref. price · indicative, final on quote
Packaging20-TSSOP (0.173", 4.40mm Width)
StockContact for availability
MOQ1 pcs
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Specifications

SN74LV244ATPW Technical Specifications
ParameterValue
Series74LV
Logic typeBuffer, Non-Inverting
Output type3-State
Mounting typeSurface Mount
Voltage4.5V ~ 5.5V
Current - output high, low16mA, 16mA
Operating temperature-40°C ~ 85°C (TA)
PackageTube
Case20-TSSOP (0.173\", 4.40mm Width)
Number of elements2
Number of bits per element4

Product details

Octal buffer on a 5V rail — the 74LV workhorse

The SN74LV244ATPW: It's the part you reach for when you need to buffer address/data buses, drive LED banks, or add fan-out on a 5V logic rail without pulling out a bigger driver. Two independent enable pins (one per 4-bit bank) give you granular control over the output banks, which is handy when you're gating separate bus segments from a single package.

If your board runs 3.3 V logic, this part won't work — you'd need a 74LVC or 74AHCT variant instead. The 16 mA symmetric drive at both output high and low is enough to light a standard LED or drive a handful of CMOS inputs, but it's not a line driver. For heavier bus loads (32 mA or more), the SN74ABT2245DW transceiver is a closer functional match, though it's a single 8-bit device with a different pinout.

Industrial temperature range and active production

The lifecycle status is Active, so TI is still manufacturing it — no last-time-buy pressure, no obsolete-parts scramble. The 20-TSSOP package (4.40 mm wide) is a common footprint; the narrow body means you'll want a steady hand and good flux.

Frequently asked questions

Can SN74LV244ATPW be used at 3.3V?

No. This buffer is designed for 5 V logic rails only. For 3.3 V operation, look at the 74LVC or 74AHCT family buffers instead.

What is the equivalent part for SN74LV244ATPW?

There is no direct pin-compatible equivalent from another manufacturer. The SN74ABT2245DW is a different function (transceiver vs buffer) and different pinout. Within TI's 74LV family, the SN74LV244A is the same die in various package options — the ATPW suffix is the 20-TSSOP tube variant.