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Texas Instruments SN74HC163PWR — Analog & Data Acquisition

SN74HC163PWR 4-bit synchronous binary counter, 36 MHz

MPNSN74HC163PWR
End of Life

Texas Instruments 74HC series SN74HC163PWR, Binary Counter, 4-bit, Synchronous, Positive Edge, 2 V to 6 V, 36 MHz, 16-TSSOP, -40°C to 85°C.

$0.5Ref. price · indicative, final on quote
Texas Instruments SN74HC163PWR datasheet (PDF)
Packaging16-TSSOP (0.173", 4.40mm Width)
RoHSROHS3 Compliant
Series74HC
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SN74HC163PWR specifications
ParameterValue
Series74HC
Logic typeBinary Counter
Trigger typePositive Edge
MountingSurface Mount
Supply voltage2 V ~ 6 V
Operating temperature-40°C ~ 85°C
ResetSynchronous
TimingSynchronous
PackageTape & Reel (TR); Cut Tape (CT)
DirectionUp
Count rate36 MHz
Case16-TSSOP (0.173\", 4.40mm Width)
Number of elements1
Number of bits per element4

Product details

Synchronous reset — the spec that decides the fit

The SN74HC163PWR is a 4-bit synchronous binary counter from TI's 74HC family. Its defining feature is a synchronous reset — the counter clears on the next rising clock edge, not immediately when the reset line goes low. This matters in designs where the reset timing must align with the clock domain, avoiding the glitch window that an asynchronous reset can introduce. The part counts up only, triggered on the positive edge, with a maximum count rate of 36 MHz.

Frequently asked questions

What is the maximum clock frequency of SN74HC163PWR?

The maximum count rate is 36 MHz, specified at the typical 5 V supply. At lower supply voltages (down to 2 V) the achievable frequency will be lower, so leave timing margin if running near the limit.

Is SN74HC163PWR synchronous or asynchronous?

It is a fully synchronous counter — both the count operation and the reset are clocked on the rising edge. This distinguishes it from the 74HC161, which has an asynchronous reset that clears the counter regardless of the clock.

Is SN74HC163PWR a direct replacement for SN74HC163AN?

The SN74HC163PWR is the same 4-bit synchronous binary counter in a surface-mount TSSOP-16 package, while the SN74HC163AN is the through-hole DIP-16 variant. Functionally identical, but the footprint is different — verify your board's package before substituting.