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Texas Instruments SN74CB3Q3345PW — Discrete Semiconductors
Texas Instruments

SN74CB3Q3345PW Bus Switch, 8 x 1:1, 20-TSSOP

MPNSN74CB3Q3345PW
End of Life

Texas Instruments 74CB series Bus Switch, 8 x 1:1 circuit, 20-TSSOP package, 2.3V ~ 3.6V single supply, -40°C ~ 85°C operating temperature, ROHS3 compliant.

$1.34Ref. price · indicative, final on quote
SN74CB3Q3345PW datasheet
Packaging20-TSSOP (0.173", 4.40mm Width)
StockContact for availability
Lead timeIn Stock wk
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

SN74CB3Q3345PW Technical Specifications
ParameterValue
TypeBus Switch
Series74CB
Mounting typeSurface Mount
Voltage2.3V ~ 3.6V
Voltage supply sourceSingle Supply
Operating temperature-40°C ~ 85°C
Circuit8 x 1:1
PackageTube
Case20-TSSOP (0.173\", 4.40mm Width)
Independent circuits1

Product details

8-bit bus switch in 20-TSSOP

The SN74CB3Q3345PW is an 8-bit bus switch from Texas Instruments' 74CB series, configured as 8 x 1:1 SPST switches in a single 20-TSSOP package. It provides a low on-state resistance path for digital or analog signals, with the switch enabling and disabling controlled by the output enable (OE) pin.

Housed in a 20-TSSOP (0.173", 4.40 mm width) surface-mount package, the SN74CB3Q3345PW uses a standard 0.65 mm pitch footprint. The thin-shrink small-outline profile keeps the seated height low, which matters for mezzanine or dense backplane cards where component clearance is tight. The tube packaging is typical for prototype and low-volume builds; for reeled tape-and-reel quantities, check the ordering options at RFQ time.

For BOM hedging or multi-source strategies, the 74CB family includes functionally similar bus switches in the same package; parametric differences (on-resistance, bandwidth, supply range) should be verified against the design's signal integrity budget.

Frequently asked questions

What is the closest pin-compatible alternative to SN74CB3Q3345PW in this Discrete Semiconductors family?

Within the 74CB series, other 8-bit bus switches in the 20-TSSOP package share the same footprint and pinout. The key differentiator is the on-resistance and bandwidth; the SN74CB3Q3345PW is a 3.3 V-optimized variant. Verify the specific R_on and channel capacitance against your signal path before substituting.

What compliance documentation does Texas Instruments provide for SN74CB3Q3345PW?

Texas Instruments provides ROHS3 compliance certification for the SN74CB3Q3345PW. The part is lead-free and meets the EU RoHS directive requirements. Additional documentation such as material declaration and REACH statements are available from TI's product page.