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SN74HC139QPWRQ1

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Texas Instruments Signal Switches, Multiplexers, Decoders, TSSOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SN74HC139QPWRQ1

Texas Instruments · Signal Switches, Multiplexers, Decoders · TSSOP-16

SN74HC139QPWRQ1 from Texas Instruments, in a TSSOP-16. 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 1G input Active-low enable input for decoder 1; can be used as a data line in demultiplexing applications.
2 1A input Select input A for decoder 1; fully buffered, each input represents only one normalized load to its driving circuit.
3 1B input Select input B for decoder 1; fully buffered, each input represents only one normalized load to its driving circuit.
4 1Y0 output Decoder 1 active-low output 0; can drive up to ten LSTTL loads with ±4-mA output drive at 5 V.
5 1Y1 output Decoder 1 active-low output 1; can drive up to ten LSTTL loads with ±4-mA output drive at 5 V.
6 1Y2 output Decoder 1 active-low output 2; can drive up to ten LSTTL loads with ±4-mA output drive at 5 V.
7 1Y3 output Decoder 1 active-low output 3; can drive up to ten LSTTL loads with ±4-mA output drive at 5 V.
8 GND power_in Ground reference for the device.
9 2Y3 output Decoder 2 active-low output 3; can drive up to ten LSTTL loads with ±4-mA output drive at 5 V.
10 2Y2 output Decoder 2 active-low output 2; can drive up to ten LSTTL loads with ±4-mA output drive at 5 V.
11 2Y1 output Decoder 2 active-low output 1; can drive up to ten LSTTL loads with ±4-mA output drive at 5 V.
12 2Y0 output Decoder 2 active-low output 0; can drive up to ten LSTTL loads with ±4-mA output drive at 5 V.
13 2B input Select input B for decoder 2; fully buffered, each input represents only one normalized load to its driving circuit.
14 2A input Select input A for decoder 2; fully buffered, each input represents only one normalized load to its driving circuit.
15 2G input Active-low enable input for decoder 2; can be used as a data line in demultiplexing applications.
16 VCC power_in Supply voltage; recommended operating range 2 V to 6 V, absolute maximum range −0.5 V to 7 V.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package TSSOP-16
Category Logic
Pins 16

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 range VCC -0.5 7 V 2
Input clamp current IIK -20 20 mA VI < 0 or VI > VCC 2
Output clamp current IOK -20 20 mA VO < 0 or VO > VCC 2
Continuous output current IO -25 25 mA VO = 0 to VCC 2
Continuous current through VCC or GND -50 50 mA 2
Storage temperature range Tstg -65 150 °C 2
Package thermal impedance PW package θJA 108 °C/W PW package, see Note 2 (JESD 51-7) 2
Supply voltage VCC 2 5 6 V 3
High-level input voltage VIH 1.5 V VCC = 2 V 3
High-level input voltage VIH 3.15 V VCC = 4.5 V 3
High-level input voltage VIH 4.2 V VCC = 6 V 3
Low-level input voltage VIL 0.5 V VCC = 2 V 3
Low-level input voltage VIL 1.35 V VCC = 4.5 V 3
Low-level input voltage VIL 1.8 V VCC = 6 V 3
Input voltage VI 0 V maximum is VCC 3
Output voltage VO 0 V maximum is VCC 3
Input transition rise/fall time Δt/Δv 1000 ns VCC = 2 V 3
Input transition rise/fall time Δt/Δv 500 ns VCC = 4.5 V 3
Input transition rise/fall time Δt/Δv 400 ns VCC = 6 V 3
Operating free-air temperature TA -40 125 °C 3
High-level output voltage VOH 1.9 1.998 V IOH = −20 µA, VI = VIH or VIL, VCC = 2 V 3
High-level output voltage VOH 4.4 4.499 V IOH = −20 µA, VI = VIH or VIL, VCC = 4.5 V 3
High-level output voltage VOH 5.9 5.999 V IOH = −20 µA, VI = VIH or VIL, VCC = 6 V 3
High-level output voltage VOH 3.7 4.3 V IOH = −4 mA, VI = VIH or VIL, VCC = 4.5 V 3
High-level output voltage VOH 5.2 5.8 V IOH = −5.2 mA, VI = VIH or VIL, VCC = 6 V 3
Low-level output voltage VOL 0.002 0.1 V IOL = 20 µA, VI = VIH or VIL, VCC = 2 V 3
Low-level output voltage VOL 0.001 0.1 V IOL = 20 µA, VI = VIH or VIL, VCC = 4.5 V 3
Low-level output voltage VOL 0.17 0.4 V IOL = 4 mA, VI = VIH or VIL, VCC = 4.5 V 3
Low-level output voltage VOL 0.15 0.4 V IOL = 5.2 mA, VI = VIH or VIL, VCC = 6 V 3
Input current II -1000 0.1 1000 nA VI = VCC or 0, VCC = 6 V 3
Supply current ICC 8 160 µA VI = VCC or 0, IO = 0, VCC = 6 V 3
Input capacitance Ci 3 10 pF VCC = 2 V to 6 V 3
Propagation delay A or B to Y tpd 47 255 ns CL = 50 pF, VCC = 2 V 4
Propagation delay A or B to Y tpd 14 51 ns CL = 50 pF, VCC = 4.5 V 4
Propagation delay A or B to Y tpd 12 44 ns CL = 50 pF, VCC = 6 V 4
Propagation delay G to Y tpd 39 255 ns CL = 50 pF, VCC = 2 V 4
Propagation delay G to Y tpd 11 51 ns CL = 50 pF, VCC = 4.5 V 4
Propagation delay G to Y tpd 10 44 ns CL = 50 pF, VCC = 6 V 4
Output transition time Y tt 38 110 ns CL = 50 pF, VCC = 2 V 4
Output transition time Y tt 8 22 ns CL = 50 pF, VCC = 4.5 V 4
Output transition time Y tt 6 19 ns CL = 50 pF, VCC = 6 V 4
Power dissipation capacitance per decoder Cpd 25 pF No load 4

CAD (KiCad official)

  • Symbol: SN74HC139QPWRQ1
  • Footprint: Package_SO:TSSOP-16_4.4x5mm_P0.65mm
  • 3D model: TSSOP-16 (KiCad packages3D, STEP)
  • 3D model files: sn74hc139qpwrq1-etched.step / sn74hc139qpwrq1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74hc139qpwrq1.step / sn74hc139qpwrq1.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (14 pp, sha256 040b3e6d4a79d8a6, retrieved 2026-10-21, tier: manufacturer)
  • 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