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Texas Instruments CD74HC190PW — Interface & Transceivers

CD74HC190PW 74HC BCD Up/Down Counter, 35 MHz, 16-TSSOP

MPNCD74HC190PW
End of Life

Texas Instruments 74HC series synchronous BCD up/down counter, CD74HC190PW, 35 MHz count rate, 2 V to 6 V supply, 4-bit, 16-TSSOP, tube.

$1.65Ref. price · indicative, final on quote
Texas Instruments CD74HC190PW 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

CD74HC190PW specifications
ParameterValue
Series74HC
Logic typeCounter, Decade
Trigger typePositive Edge
MountingSurface Mount
Supply voltage2 V ~ 6 V
Operating temperature-55°C ~ 125°C
TimingSynchronous
PackageTube
DirectionUp, Down
Count rate35 MHz
Case16-TSSOP (0.173\", 4.40mm Width)
Number of elements1
Number of bits per element4

Product details

16-TSSOP synchronous decade counter for up/down BCD counting

The CD74HC190PW is a synchronous, 4-bit BCD up/down counter from Texas Instruments' 74HC family, packaged in a 16-lead TSSOP (4.40 mm width) for surface-mount assembly. It counts on the positive edge of the clock, with a maximum count rate of 35 MHz, and supports both up and down counting directions via a dedicated control input.

Second-source consideration against CY74FCT191ATSOC

A functional peer is the CY74FCT191ATSOC from the 74FCT family, which is also a synchronous up/down counter but implements a binary (not BCD) count sequence. The two are not pin-compatible — the CY74FCT191ATSOC uses a different package — so a board spin is required to substitute.

Frequently asked questions

What is the closest second-source for the CD74HC190PW?

The CY74FCT191ATSOC is a functional peer but implements binary counting, not BCD, and operates over a narrower supply and temperature range. The two are not pin-compatible — a board layout change is required to substitute.