Skip to main content
Log in
Texas Instruments SN74HC259DT — Logic ICs

SN74HC259DT Texas Instruments 74HC Addressable Latch, 1:8

MPNSN74HC259DT
End of Life

Texas Instruments 74HC series D-Type Addressable Latch, SN74HC259DT, 1:8 circuit, 2V to 6V supply, 13ns propagation delay, 5.2mA output drive, -40°C to 85°C, 16-SOIC surface mount package.

$1.26Ref. price · indicative, final on quote
Texas Instruments SN74HC259DT datasheet (PDF)
Packaging16-SOIC (0.154", 3.90mm Width)
RoHSROHS3 Compliant
Series74HC
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SN74HC259DT specifications
ParameterValue
Series74HC
Logic typeD-Type, Addressable
Output typeStandard
MountingSurface Mount
Supply voltage2V ~ 6V
Current - output high, low5.2mA, 5.2mA
Operating temperature-40°C ~ 85°C
Circuit1:8
PackageTape & Reel (TR); Cut Tape (CT)
Case16-SOIC (0.154\", 3.90mm Width)
Independent circuits1
Delay time - propagation13ns

Product details

Active production — 74HC addressable latch for BOM-fit

The SN74HC259DT: The 13ns propagation delay sets the timing floor for address decoding in memory-mapped I/O or register-select applications. Output drive capability is 5.2mA for both high and low states, sufficient to fan out to up to ten standard LSTTL loads or drive the inputs of downstream CMOS logic without buffering.

16-SOIC package — surface-mount integration

The surface-mount profile suits automated pick-and-place assembly and reflow soldering.

ROHS3 compliant, the part carries no RoHS exemption conflicts for EU-market shipments.

Frequently asked questions

What is the function of the SN74HC259DT?

It is a D-Type Addressable Latch configured as a 1:8 demultiplexer. A single data input is routed to one of eight latched outputs based on a 3-bit address, making it useful for address decoding, register selection, or expanding digital outputs from a microcontroller.

Can SN74HC259DT replace SN74ALVCH16841DGGR?

No. The SN74ALVCH16841DGGR is a 20-bit transparent latch in a different logic family (74ALVCH) with tri-state outputs and a 1.65V supply. The SN74HC259DT is an 8-bit addressable latch running at 2V-6V with standard outputs — the function, pinout, and voltage range are not compatible.