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README

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74CBTLV3244PW

Nexperia · Signal Switches, Multiplexers, Decoders · TSSOP-20

74CBTLV3244PW from Nexperia, in a TSSOP-20. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 1OE input Output enable input (active LOW) for switches 1A1 to 1B4; the switches are disabled (high-impedance) when this input is HIGH.
2 1A1 bidirectional Data input/output (A port) of the 1A1 switch channel; ON-state resistance is about 5 Ω and rail-to-rail switching is supported when enabled.
3 2B4 bidirectional Data input/output (B port) of the 2B4 switch channel; the channel is disabled when 2OE is HIGH.
4 1A2 bidirectional Data input/output (A port) of the 1A2 switch channel; the channel is disabled when 1OE is HIGH.
5 2B3 bidirectional Data input/output (B port) of the 2B3 switch channel; the channel is disabled when 2OE is HIGH.
6 1A3 bidirectional Data input/output (A port) of the 1A3 switch channel; the channel is disabled when 1OE is HIGH.
7 2B2 bidirectional Data input/output (B port) of the 2B2 switch channel; the channel is disabled when 2OE is HIGH.
8 1A4 bidirectional Data input/output (A port) of the 1A4 switch channel; the channel is disabled when 1OE is HIGH.
9 2B1 bidirectional Data input/output (B port) of the 2B1 switch channel; the channel is disabled when 2OE is HIGH.
10 GND power_in Ground (0 V); all voltages are referenced to this pin.
11 2A1 bidirectional Data input/output (A port) of the 2A1 switch channel; the channel is disabled when 2OE is HIGH.
12 1B4 bidirectional Data input/output (B port) of the 1B4 switch channel; the channel is disabled when 1OE is HIGH.
13 2A2 bidirectional Data input/output (A port) of the 2A2 switch channel; the channel is disabled when 2OE is HIGH.
14 1B3 bidirectional Data input/output (B port) of the 1B3 switch channel; the channel is disabled when 1OE is HIGH.
15 2A3 bidirectional Data input/output (A port) of the 2A3 switch channel; the channel is disabled when 2OE is HIGH.
16 1B2 bidirectional Data input/output (B port) of the 1B2 switch channel; the channel is disabled when 1OE is HIGH.
17 2A4 bidirectional Data input/output (A port) of the 2A4 switch channel; the channel is disabled when 2OE is HIGH.
18 1B1 bidirectional Data input/output (B port) of the 1B1 switch channel; the channel is disabled when 1OE is HIGH.
19 2OE input Output enable input (active LOW) for switches 2A1 to 2B4; the switches are disabled (high-impedance) when this input is HIGH.
20 VCC power_in Positive supply voltage; recommended operating range is 2.3 V to 3.6 V.

Key specifications

Parameter Value
Manufacturer Nexperia
Package TSSOP-20
Category Logic
Pins 20

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
supply voltage VCC -0.5 4.6 V 3
input voltage VI -0.5 4.6 V 3
switch voltage VSW -0.5 V enable and disable mode 3
input clamping current IIK -50 mA VI < -0.5 V 3
switch clamping current ISK -50 mA VI < -0.5 V 3
switch current ISW -128 128 mA VSW = 0 V to VCC 3
supply current ICC 100 mA 3
ground current IGND -100 mA 3
storage temperature Tstg -65 150 °C 3
total power dissipation Ptot 500 mW Tamb = -40 °C to +125 °C 3
supply voltage VCC 2.3 3.6 V 4
input voltage VI 0 3.6 V 4
switch voltage VSW 0 V enable and disable mode 4
ambient temperature Tamb -40 125 °C 4
input transition rise and fall rate Δt/ΔV 200 ns/V VCC = 2.3 V to 3.6 V; applies to control signal levels 4
HIGH-level input voltage VIH 1.7 V -40 °C to +125 °C; VCC = 2.3 V to 2.7 V 4
HIGH-level input voltage VIH 2 V -40 °C to +125 °C; VCC = 3.0 V to 3.6 V 4
LOW-level input voltage VIL 0.7 V -40 °C to +125 °C; VCC = 2.3 V to 2.7 V 4
LOW-level input voltage VIL 0.9 V -40 °C to +125 °C; VCC = 3.0 V to 3.6 V 4
input leakage current II -20 20 μA -40 °C to +125 °C; pin nOE; VI = GND to VCC; VCC = 3.6 V 4
OFF-state leakage current IS(OFF) -20 20 μA -40 °C to +125 °C; VCC = 3.6 V; see Fig. 3 4
ON-state leakage current IS(ON) -20 20 μA -40 °C to +125 °C; VCC = 3.6 V; see Fig. 4 4
power-off leakage current IOFF -50 50 μA -40 °C to +125 °C; VI or VO = 0 V to 3.6 V; VCC = 0 V 4
supply current ICC 50 μA -40 °C to +125 °C; VI = GND or VCC; IO = 0 A; VSW = GND or VCC; VCC = 3.6 V 4
additional supply current ΔICC 2000 μA -40 °C to +125 °C; pin nOE; VI = VCC - 0.6 V; VSW = GND or VCC; VCC = 3.6 V 4
ON resistance RON 4.2 15 Ω -40 °C to +125 °C; VCC = 2.3 V to 2.7 V; ISW = 64 mA; VI = 0 V 5
ON resistance RON 8.4 60 Ω -40 °C to +125 °C; VCC = 2.3 V to 2.7 V; ISW = 15 mA; VI = 1.7 V 5
ON resistance RON 4 11 Ω -40 °C to +125 °C; VCC = 3.0 V to 3.6 V; ISW = 64 mA; VI = 0 V 5
ON resistance RON 6.2 25.5 Ω -40 °C to +125 °C; VCC = 3.0 V to 3.6 V; ISW = 15 mA; VI = 2.4 V 5
propagation delay tpd 0.2 ns -40 °C to +125 °C; nAn to nBn or nBn to nAn; see Fig. 13; VCC = 2.3 V to 2.7 V 8
propagation delay tpd 0.31 ns -40 °C to +125 °C; nAn to nBn or nBn to nAn; see Fig. 13; VCC = 3.0 V to 3.6 V 8
enable time ten 1 3 7 ns -40 °C to +125 °C; nOE to nAn or nBn; see Fig. 12; VCC = 2.3 V to 2.7 V 8
enable time ten 1 2.6 6 ns -40 °C to +125 °C; nOE to nAn or nBn; see Fig. 12; VCC = 3.0 V to 3.6 V 8
disable time tdis 1 2.6 7.5 ns -40 °C to +125 °C; nOE to nAn or nBn; see Fig. 12; VCC = 2.3 V to 2.7 V 8
disable time tdis 1 3.2 7.5 ns -40 °C to +125 °C; nOE to nAn or nBn; see Fig. 12; VCC = 3.0 V to 3.6 V 8

CAD (KiCad official)

  • Symbol: 74CBTLV3244PW
  • Footprint: Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm
  • 3D model: TSSOP-20 (KiCad packages3D, STEP)
  • 3D model files: 74cbtlv3244pw-etched.step / 74cbtlv3244pw-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 74cbtlv3244pw.step / 74cbtlv3244pw.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Nexperia datasheet (15 pp, sha256 51dc3103de54fe65, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF