component
MC74ACT139DTR2G
Public Made by Adomby adom
onsemi Signal Switches, Multiplexers, Decoders, TSSOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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MC74ACT139DTR2G
onsemi · Signal Switches, Multiplexers, Decoders · TSSOP-16
MC74ACT139DTR2G from onsemi, 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 | Ea | input | Active-LOW enable for decoder a; when Ea is HIGH, all decoder a outputs (O0a to O3a) are forced HIGH. |
| 2 | A0a | input | Binary-weighted address input A0 of decoder a; the ′ACT139 has TTL-compatible inputs. |
| 3 | A1a | input | Binary-weighted address input A1 of decoder a; the ′ACT139 has TTL-compatible inputs. |
| 4 | O0a | output | Active-LOW mutually exclusive output 0 of decoder a, rated to source/sink 24 mA. |
| 5 | O1a | output | Active-LOW mutually exclusive output 1 of decoder a, rated to source/sink 24 mA. |
| 6 | O2a | output | Active-LOW mutually exclusive output 2 of decoder a, rated to source/sink 24 mA. |
| 7 | O3a | output | Active-LOW mutually exclusive output 3 of decoder a, rated to source/sink 24 mA. |
| 8 | GND | power_in | Ground reference; all input and output voltages are specified referenced to GND. |
| 9 | O3b | output | Active-LOW mutually exclusive output 3 of decoder b, rated to source/sink 24 mA. |
| 10 | O2b | output | Active-LOW mutually exclusive output 2 of decoder b, rated to source/sink 24 mA. |
| 11 | O1b | output | Active-LOW mutually exclusive output 1 of decoder b, rated to source/sink 24 mA. |
| 12 | O0b | output | Active-LOW mutually exclusive output 0 of decoder b, rated to source/sink 24 mA. |
| 13 | A1b | input | Binary-weighted address input A1 of decoder b; the ′ACT139 has TTL-compatible inputs. |
| 14 | A0b | input | Binary-weighted address input A0 of decoder b; the ′ACT139 has TTL-compatible inputs. |
| 15 | Eb | input | Active-LOW enable for decoder b; when Eb is HIGH, all decoder b outputs (O0b to O3b) are forced HIGH. |
| 16 | VCC | power_in | Supply voltage: 2.0 V to 6.0 V for 74AC and 4.5 V to 5.5 V for 74ACT, with an absolute maximum of 7.0 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| 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 ′ACT | VCC | 4.5 | 5 | 5.5 | V | 3 | |
| DC Input Voltage, Output Voltage (Ref. to GND) | VIN, VOUT | 0 | V | Ref. to GND; upper limit printed as VCC | 3 | ||
| Input Rise and Fall Time ′ACT devices except Schmitt inputs | tr, tf | 10 | ns/V | VCC @ 4.5 V; VIN from 0.8 V to 2.0 V (Note 2) | 3 | ||
| Input Rise and Fall Time ′ACT devices except Schmitt inputs | tr, tf | 8 | ns/V | VCC @ 5.5 V; VIN from 0.8 V to 2.0 V (Note 2) | 3 | ||
| Junction Temperature (PDIP) | TJ | 140 | °C | PDIP package as printed | 3 | ||
| Operating Ambient Temperature Range | TA | -40 | 25 | 85 | °C | 3 | |
| Output Current − High | IOH | -24 | mA | 3 | |||
| Output Current − Low | IOL | 24 | mA | 3 | |||
| DC Supply Voltage | VCC | -0.5 | 7 | V | 3 | ||
| DC Input Voltage | VI | -0.5 | V | Upper limit printed as VCC + 0.5 | 3 | ||
| DC Output Voltage (Note 1) | VO | -0.5 | V | Upper limit printed as VCC + 0.5; IO absolute maximum must be observed | 3 | ||
| DC Input Diode Current | IIK | 20 | mA | 3 | |||
| DC Output Diode Current | IOK | 50 | mA | 3 | |||
| DC Output Sink/Source Current | IO | 50 | mA | 3 | |||
| DC Supply Current per Output Pin | ICC | 50 | mA | 3 | |||
| DC Ground Current per Output Pin | IGND | 50 | mA | 3 | |||
| Storage Temperature Range | TSTG | -65 | 150 | °C | 3 | ||
| Lead Temperature | TL | 260 | °C | 1 mm from case for 10 seconds | 3 | ||
| Junction Temperature under Bias | TJ | 150 | °C | 3 | |||
| Thermal Resistance (JA) | JA | 103.8 | °C/W | TSSOP package; calculated per JESD51-7 (Note 2) | 3 | ||
| Power Dissipation in Still Air at 65°C | PD | 500 | mW | TSSOP package; still air at 65°C (Note 3) | 3 | ||
| ESD Withstand Voltage (Human Body Model) | VESD | 2000 | V | Human Body Model (Note 4); printed as > 2000 | 3 | ||
| ESD Withstand Voltage (Machine Model) | VESD | 200 | V | Machine Model (Note 5); printed as > 200 | 3 | ||
| ESD Withstand Voltage (Charged Device Model) | VESD | 1000 | V | Charged Device Model (Note 6); printed as > 1000 | 3 | ||
| Latch-Up Performance | 100 | mA | Above VCC and below GND at 85°C (Note 7) | 3 | |||
| Input High Level Voltage (Minimum High Level Input Voltage) | VIH | 2 | 1.5 | V | VCC = 4.5 V; VOUT = 0.1 V or VCC − 0.1 V | 5 | |
| Maximum Low Level Input Voltage | VIL | 1.5 | 0.8 | V | VCC = 4.5 V; VOUT = 0.1 V or VCC − 0.1 V | 5 | |
| Minimum High Level Output Voltage | VOH | 4.4 | 4.49 | V | VCC = 4.5 V; IOUT = −50 µA | 5 | |
| Minimum High Level Output Voltage | VOH | 5.4 | 5.49 | V | VCC = 5.5 V; IOUT = −50 µA | 5 | |
| Minimum High Level Output Voltage | VOH | 3.76 | V | VCC = 4.5 V; VIN = VIL or VIH; IOH = −24 mA | 5 | ||
| Minimum High Level Output Voltage | VOH | 4.76 | V | VCC = 5.5 V; VIN = VIL or VIH; IOH = −24 mA | 5 | ||
| Maximum Low Level Output Voltage | VOL | 0.001 | 0.1 | V | VCC = 4.5 V; IOUT = 50 µA | 5 | |
| Maximum Low Level Output Voltage | VOL | 0.44 | V | VCC = 4.5 V; VIN = VIL or VIH; IOL = 24 mA | 5 | ||
| Maximum Input Leakage Current | IIN | -1 | 1 | µA | VI = VCC, GND | 5 | |
| Additional Max. ICC/Input | ICCT | 0.6 | 1.5 | mA | VCC = 5.5 V; VI = VCC − 2.1 V | 5 | |
| Minimum Dynamic Output Current | IOLD | 75 | mA | VCC = 5.5 V; VOLD = 1.65 V Max | 5 | ||
| Minimum Dynamic Output Current | IOHD | -75 | mA | VCC = 5.5 V; VOHD = 3.85 V Min | 5 | ||
| Maximum Quiescent Supply Current | ICC | 80 | µA | VCC = 5.5 V; VIN = VCC or GND | 5 | ||
| Propagation Delay An to On (tPLH) | tPLH | 1.5 | 6 | 9.5 | ns | VCC = 5.0 V; CL = 50 pF; Fig. 3−6 | 5 |
| Propagation Delay An to On (tPHL) | tPHL | 1.5 | 6 | 10.5 | ns | VCC = 5.0 V; CL = 50 pF; Fig. 3−6 | 5 |
| Propagation Delay En to On (tPLH) | tPLH | 2 | 7 | 11 | ns | VCC = 5.0 V; CL = 50 pF; Fig. 3−6 | 5 |
| Propagation Delay En to On (tPHL) | tPHL | 1.5 | 7 | 10.5 | ns | VCC = 5.0 V; CL = 50 pF; Fig. 3−6 | 5 |
CAD (KiCad official)
- Symbol:
MC74ACT139DTR2G - Footprint:
Package_SO:TSSOP-16_4.4x5mm_P0.65mm - 3D model: TSSOP-16 (KiCad packages3D, STEP)
- 3D model files:
mc74act139dtr2g-etched.step/mc74act139dtr2g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mc74act139dtr2g.step/mc74act139dtr2g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (9 pp, sha256
db95a88f1355cf30, retrieved 2026-10-20, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).
# MC74ACT139DTR2G
**onsemi** · Signal Switches, Multiplexers, Decoders · TSSOP-16
MC74ACT139DTR2G from onsemi, 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 | Ea | input | Active-LOW enable for decoder a; when Ea is HIGH, all decoder a outputs (O0a to O3a) are forced HIGH. |
| 2 | A0a | input | Binary-weighted address input A0 of decoder a; the ′ACT139 has TTL-compatible inputs. |
| 3 | A1a | input | Binary-weighted address input A1 of decoder a; the ′ACT139 has TTL-compatible inputs. |
| 4 | O0a | output | Active-LOW mutually exclusive output 0 of decoder a, rated to source/sink 24 mA. |
| 5 | O1a | output | Active-LOW mutually exclusive output 1 of decoder a, rated to source/sink 24 mA. |
| 6 | O2a | output | Active-LOW mutually exclusive output 2 of decoder a, rated to source/sink 24 mA. |
| 7 | O3a | output | Active-LOW mutually exclusive output 3 of decoder a, rated to source/sink 24 mA. |
| 8 | GND | power_in | Ground reference; all input and output voltages are specified referenced to GND. |
| 9 | O3b | output | Active-LOW mutually exclusive output 3 of decoder b, rated to source/sink 24 mA. |
| 10 | O2b | output | Active-LOW mutually exclusive output 2 of decoder b, rated to source/sink 24 mA. |
| 11 | O1b | output | Active-LOW mutually exclusive output 1 of decoder b, rated to source/sink 24 mA. |
| 12 | O0b | output | Active-LOW mutually exclusive output 0 of decoder b, rated to source/sink 24 mA. |
| 13 | A1b | input | Binary-weighted address input A1 of decoder b; the ′ACT139 has TTL-compatible inputs. |
| 14 | A0b | input | Binary-weighted address input A0 of decoder b; the ′ACT139 has TTL-compatible inputs. |
| 15 | Eb | input | Active-LOW enable for decoder b; when Eb is HIGH, all decoder b outputs (O0b to O3b) are forced HIGH. |
| 16 | VCC | power_in | Supply voltage: 2.0 V to 6.0 V for 74AC and 4.5 V to 5.5 V for 74ACT, with an absolute maximum of 7.0 V. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| 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 ′ACT | VCC | 4.5 | 5 | 5.5 | V | | 3 |
| DC Input Voltage, Output Voltage (Ref. to GND) | VIN, VOUT | 0 | | | V | Ref. to GND; upper limit printed as VCC | 3 |
| Input Rise and Fall Time ′ACT devices except Schmitt inputs | tr, tf | | 10 | | ns/V | VCC @ 4.5 V; VIN from 0.8 V to 2.0 V (Note 2) | 3 |
| Input Rise and Fall Time ′ACT devices except Schmitt inputs | tr, tf | | 8 | | ns/V | VCC @ 5.5 V; VIN from 0.8 V to 2.0 V (Note 2) | 3 |
| Junction Temperature (PDIP) | TJ | | | 140 | °C | PDIP package as printed | 3 |
| Operating Ambient Temperature Range | TA | -40 | 25 | 85 | °C | | 3 |
| Output Current − High | IOH | | | -24 | mA | | 3 |
| Output Current − Low | IOL | | | 24 | mA | | 3 |
| DC Supply Voltage | VCC | -0.5 | | 7 | V | | 3 |
| DC Input Voltage | VI | -0.5 | | | V | Upper limit printed as VCC + 0.5 | 3 |
| DC Output Voltage (Note 1) | VO | -0.5 | | | V | Upper limit printed as VCC + 0.5; IO absolute maximum must be observed | 3 |
| DC Input Diode Current | IIK | | | 20 | mA | | 3 |
| DC Output Diode Current | IOK | | | 50 | mA | | 3 |
| DC Output Sink/Source Current | IO | | | 50 | mA | | 3 |
| DC Supply Current per Output Pin | ICC | | | 50 | mA | | 3 |
| DC Ground Current per Output Pin | IGND | | | 50 | mA | | 3 |
| Storage Temperature Range | TSTG | -65 | | 150 | °C | | 3 |
| Lead Temperature | TL | | | 260 | °C | 1 mm from case for 10 seconds | 3 |
| Junction Temperature under Bias | TJ | | | 150 | °C | | 3 |
| Thermal Resistance (JA) | JA | | 103.8 | | °C/W | TSSOP package; calculated per JESD51-7 (Note 2) | 3 |
| Power Dissipation in Still Air at 65°C | PD | | | 500 | mW | TSSOP package; still air at 65°C (Note 3) | 3 |
| ESD Withstand Voltage (Human Body Model) | VESD | 2000 | | | V | Human Body Model (Note 4); printed as > 2000 | 3 |
| ESD Withstand Voltage (Machine Model) | VESD | 200 | | | V | Machine Model (Note 5); printed as > 200 | 3 |
| ESD Withstand Voltage (Charged Device Model) | VESD | 1000 | | | V | Charged Device Model (Note 6); printed as > 1000 | 3 |
| Latch-Up Performance | | | | 100 | mA | Above VCC and below GND at 85°C (Note 7) | 3 |
| Input High Level Voltage (Minimum High Level Input Voltage) | VIH | 2 | 1.5 | | V | VCC = 4.5 V; VOUT = 0.1 V or VCC − 0.1 V | 5 |
| Maximum Low Level Input Voltage | VIL | | 1.5 | 0.8 | V | VCC = 4.5 V; VOUT = 0.1 V or VCC − 0.1 V | 5 |
| Minimum High Level Output Voltage | VOH | 4.4 | 4.49 | | V | VCC = 4.5 V; IOUT = −50 µA | 5 |
| Minimum High Level Output Voltage | VOH | 5.4 | 5.49 | | V | VCC = 5.5 V; IOUT = −50 µA | 5 |
| Minimum High Level Output Voltage | VOH | 3.76 | | | V | VCC = 4.5 V; VIN = VIL or VIH; IOH = −24 mA | 5 |
| Minimum High Level Output Voltage | VOH | 4.76 | | | V | VCC = 5.5 V; VIN = VIL or VIH; IOH = −24 mA | 5 |
| Maximum Low Level Output Voltage | VOL | | 0.001 | 0.1 | V | VCC = 4.5 V; IOUT = 50 µA | 5 |
| Maximum Low Level Output Voltage | VOL | | | 0.44 | V | VCC = 4.5 V; VIN = VIL or VIH; IOL = 24 mA | 5 |
| Maximum Input Leakage Current | IIN | -1 | | 1 | µA | VI = VCC, GND | 5 |
| Additional Max. ICC/Input | ICCT | | 0.6 | 1.5 | mA | VCC = 5.5 V; VI = VCC − 2.1 V | 5 |
| Minimum Dynamic Output Current | IOLD | | | 75 | mA | VCC = 5.5 V; VOLD = 1.65 V Max | 5 |
| Minimum Dynamic Output Current | IOHD | -75 | | | mA | VCC = 5.5 V; VOHD = 3.85 V Min | 5 |
| Maximum Quiescent Supply Current | ICC | | | 80 | µA | VCC = 5.5 V; VIN = VCC or GND | 5 |
| Propagation Delay An to On (tPLH) | tPLH | 1.5 | 6 | 9.5 | ns | VCC = 5.0 V; CL = 50 pF; Fig. 3−6 | 5 |
| Propagation Delay An to On (tPHL) | tPHL | 1.5 | 6 | 10.5 | ns | VCC = 5.0 V; CL = 50 pF; Fig. 3−6 | 5 |
| Propagation Delay En to On (tPLH) | tPLH | 2 | 7 | 11 | ns | VCC = 5.0 V; CL = 50 pF; Fig. 3−6 | 5 |
| Propagation Delay En to On (tPHL) | tPHL | 1.5 | 7 | 10.5 | ns | VCC = 5.0 V; CL = 50 pF; Fig. 3−6 | 5 |
## CAD (KiCad official)
- Symbol: `MC74ACT139DTR2G`
- Footprint: `Package_SO:TSSOP-16_4.4x5mm_P0.65mm`
- 3D model: TSSOP-16 (KiCad packages3D, STEP)
- 3D model files: `mc74act139dtr2g-etched.step` / `mc74act139dtr2g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mc74act139dtr2g.step` / `mc74act139dtr2g.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [onsemi datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588928991575625728) (9 pp, sha256 `db95a88f1355cf30`, retrieved 2026-10-20, 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](docs/mc74act139dtr2g-datasheet.pdf)