
OTTO Beta Main
bitfieldaudio/otto-hardware
OTTO hardware files for upcoming beta. WORK IN PROGRESS
Texas InstrumentsExtended
-40℃~+85℃ 1 1.5V~4.2V 21ns@6V,50pF 2V~6V 2uA 300mV~1.2V 5.2mA 5.2mA 6 74HC Series Schmitt trigger SOIC-14 Inverters ROHS
The SN74HC14D is an inverter made by Texas Instruments in a SOIC-14 package with 14 pins. -40℃~+85℃ 1 1.5V~4.2V 21ns@6V,50pF 2V~6V 2uA 300mV~1.2V 5.2mA 5.2mA 6 74HC Series Schmitt trigger SOIC-14 Inverters ROHS.
PCBKit's library has its KiCad symbol (74xx:74HC14, from KiCad's library) and its footprint (Package_SO:SOIC-14_3.9x8.7mm_P1.27mm, from KiCad's library), ready for a KiCad board. 183,583 are in stock at JLCPCB (part C6820). 6 open-source boards in 4 repositories on GitHub use it.
| Parameter | Conditions | As printed | Page |
|---|---|---|---|
| Supply voltage VCC | Over operating free-air temperature range | min -0.5 · max 7 V | 4 |
| Input clamp current(2) IIK | VI < 0 or VI > VCC; limit ±20 mA | max 20 mA | 4 |
| Output clamp current(2) IOK | VO < 0; limit ±20 mA | max 20 mA | 4 |
| Continuous output current IO | VO = 0 to VCC; limit ±25 mA | max 25 mA | 4 |
| Continuous current through VCC or GND | Limit ±50 mA | max 50 mA | 4 |
| Junction temperature(3) TJ | Guaranteed by design | max 150 °C | 4 |
| Storage temperature Tstg | min -60 · max 150 °C | 4 | |
| Electrostatic discharge V(ESD) | Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001; value ±2000 V | max 2000 V | 4 |
| Electrostatic discharge V(ESD) | Charged-device model (CDM), per JEDEC specification JESD22-C101; value ±1500 V | max 1500 V | 4 |
| Supply voltage VCC | Nominal 5 V | min 2 · max 6 V | 4 |
| Input voltage VI | Maximum VCC | min 0 V | 4 |
| Output voltage VO | Maximum VCC | min 0 V | 4 |
| Junction-to-ambient thermal resistance RθJA | SN74HC14, D (SOIC), 14 pins | typ 133.6 °C/W | 4 |
| Junction-to-case (top) thermal resistance RθJC(top) | SN74HC14, D (SOIC), 14 pins | typ 89 °C/W | 4 |
| Junction-to-board thermal resistance RθJB | SN74HC14, D (SOIC), 14 pins | typ 89.5 °C/W | 4 |
| Junction-to-top characterization parameter ΨJT | SN74HC14, D (SOIC), 14 pins | typ 45.5 °C/W | 4 |
| Junction-to-board characterization parameter ΨJB | SN74HC14, D (SOIC), 14 pins | typ 89.1 °C/W | 4 |
| Positive switching threshold VT+ | VCC = 2 V; TA = 25°C | min 0.7 · typ 1.2 · max 1.5 V | 5 |
| Positive switching threshold VT+ | VCC = 2 V; TA = -40°C to 85°C | min 0.7 · max 1.5 V | 5 |
| Positive switching threshold VT+ | VCC = 4.5 V; TA = 25°C | min 1.55 · typ 2.5 · max 3.13 V | 5 |
| Positive switching threshold VT+ | VCC = 4.5 V; TA = -40°C to 85°C | min 1.55 · max 3.13 V | 5 |
| Positive switching threshold VT+ | VCC = 6 V; TA = 25°C | min 2.1 · typ 3.3 · max 4.2 V | 5 |
| Positive switching threshold VT+ | VCC = 6 V; TA = -40°C to 85°C | min 2.1 · max 4.2 V | 5 |
| Negative switching threshold VT- | VCC = 2 V; TA = 25°C | min 0.3 · typ 0.6 · max 1 V | 5 |
| Negative switching threshold VT- | VCC = 2 V; TA = -40°C to 85°C | min 0.3 · max 1 V | 5 |
| Negative switching threshold VT- | VCC = 4.5 V; TA = 25°C | min 0.9 · typ 1.6 · max 2.45 V | 5 |
| Negative switching threshold VT- | VCC = 4.5 V; TA = -40°C to 85°C | min 0.9 · max 2.45 V | 5 |
| Negative switching threshold VT- | VCC = 6 V; TA = 25°C | min 1.2 · typ 2 · max 3.2 V | 5 |
| Negative switching threshold VT- | VCC = 6 V; TA = -40°C to 85°C | min 1.2 · max 3.2 V | 5 |
| Hysteresis (VT+ - VT-) ΔVT | VCC = 2 V; TA = 25°C | min 0.2 · typ 0.6 · max 1.2 V | 5 |
| Hysteresis (VT+ - VT-) ΔVT | VCC = 2 V; TA = -40°C to 85°C | min 0.2 · max 1.2 V | 5 |
| Hysteresis (VT+ - VT-) ΔVT | VCC = 4.5 V; TA = 25°C | min 0.4 · typ 0.9 · max 2.1 V | 5 |
| Hysteresis (VT+ - VT-) ΔVT | VCC = 4.5 V; TA = -40°C to 85°C | min 0.4 · max 2.1 V | 5 |
| Hysteresis (VT+ - VT-) ΔVT | VCC = 6 V; TA = 25°C | min 0.5 · typ 1.3 · max 2.5 V | 5 |
| Hysteresis (VT+ - VT-) ΔVT | VCC = 6 V; TA = -40°C to 85°C | min 0.5 · max 2.5 V | 5 |
| High-level output voltage VOH | VI = VIH or VIL; IOH = –20 uA; VCC = 2 V; TA = 25°C | min 1.9 · typ 1.998 V | 5 |
| High-level output voltage VOH | VI = VIH or VIL; IOH = –20 uA; VCC = 2 V; TA = -40°C to 85°C | min 1.9 V | 5 |
| High-level output voltage VOH | VI = VIH or VIL; IOH = –20 uA; VCC = 4.5 V; TA = 25°C | min 4.4 · typ 4.499 V | 5 |
| High-level output voltage VOH | VI = VIH or VIL; IOH = –20 uA; VCC = 4.5 V; TA = -40°C to 85°C | min 4.4 V | 5 |
| High-level output voltage VOH | VI = VIH or VIL; IOH = –20 uA; VCC = 6 V; TA = 25°C | min 5.9 · typ 5.999 V | 5 |
| High-level output voltage VOH | VI = VIH or VIL; IOH = –20 uA; VCC = 6 V; TA = -40°C to 85°C | min 5.9 V | 5 |
| High-level output voltage VOH | VI = VIH or VIL; IOH = –4 mA; VCC = 4.5 V; TA = 25°C | min 3.98 · typ 4.3 V | 5 |
| High-level output voltage VOH | VI = VIH or VIL; IOH = –4 mA; VCC = 4.5 V; TA = -40°C to 85°C | min 3.84 V | 5 |
| High-level output voltage VOH | VI = VIH or VIL; IOH = –5.2 mA; VCC = 6 V; TA = 25°C | min 5.48 · typ 5.8 V | 5 |
| High-level output voltage VOH | VI = VIH or VIL; IOH = –5.2 mA; VCC = 6 V; TA = -40°C to 85°C | min 5.34 V | 5 |
| Low-level output voltage VOL | VI = VIH or VIL; IOL = 20 uA; VCC = 2 V; TA = 25°C | typ 0.002 · max 0.1 V | 5 |
| Low-level output voltage VOL | VI = VIH or VIL; IOL = 20 uA; VCC = 2 V; TA = -40°C to 85°C | max 0.1 V | 5 |
| Low-level output voltage VOL | VI = VIH or VIL; IOL = 20 uA; VCC = 4.5 V; TA = 25°C | typ 0.001 · max 0.1 V | 5 |
| Low-level output voltage VOL | VI = VIH or VIL; IOL = 20 uA; VCC = 4.5 V; TA = -40°C to 85°C | max 0.1 V | 5 |
| Low-level output voltage VOL | VI = VIH or VIL; IOL = 20 uA; VCC = 6 V; TA = 25°C | typ 0.001 · max 0.1 V | 5 |
| Low-level output voltage VOL | VI = VIH or VIL; IOL = 20 uA; VCC = 6 V; TA = -40°C to 85°C | max 0.1 V | 5 |
| Low-level output voltage VOL | VI = VIH or VIL; IOL = 4 mA; VCC = 4.5 V; TA = 25°C | typ 0.17 · max 0.26 V | 5 |
| Low-level output voltage VOL | VI = VIH or VIL; IOL = 4 mA; VCC = 4.5 V; TA = -40°C to 85°C | max 0.33 V | 5 |
| Low-level output voltage VOL | VI = VIH or VIL; IOL = 5.2 mA; VCC = 6 V; TA = 25°C | typ 0.15 · max 0.26 V | 5 |
| Low-level output voltage VOL | VI = VIH or VIL; IOL = 5.2 mA; VCC = 6 V; TA = -40°C to 85°C | max 0.33 V | 5 |
| Input leakage current II | VI = VCC or 0; VCC = 6 V; TA = 25°C; limit ±0.1 uA | max 0.1 uA | 5 |
| Input leakage current II | VI = VCC or 0; VCC = 6 V; TA = -40°C to 85°C; limit ±1 uA | max 1 uA | 5 |
| Supply current ICC | VI = VCC or 0; IO = 0; VCC = 6 V; TA = 25°C | max 2 uA | 5 |
| Supply current ICC | VI = VCC or 0; IO = 0; VCC = 6 V; TA = -40°C to 85°C | max 20 uA | 5 |
| Input capacitance Ci | VCC = 5 V; TA = 25°C | typ 3 · max 10 pF | 5 |
| Input capacitance Ci | VCC = 5 V; TA = -40°C to 85°C | max 10 pF | 5 |
| Propagation delay tpd | A to Y; VCC = 2 V; TA = 25°C | typ 55 · max 125 ns | 6 |
| Propagation delay tpd | A to Y; VCC = 2 V; TA = –40°C to 85°C | max 155 ns | 6 |
| Propagation delay tpd | A to Y; VCC = 4.5 V; TA = 25°C | typ 12 · max 25 ns | 6 |
| Propagation delay tpd | A to Y; VCC = 4.5 V; TA = –40°C to 85°C | max 31 ns | 6 |
| Propagation delay tpd | A to Y; VCC = 6 V; TA = 25°C | typ 11 · max 21 ns | 6 |
| Propagation delay tpd | A to Y; VCC = 6 V; TA = –40°C to 85°C | max 26 ns | 6 |
| Transition-time tt | Output Y; VCC = 2 V; TA = 25°C | typ 38 · max 75 ns | 6 |
| Transition-time tt | Output Y; VCC = 2 V; TA = –40°C to 85°C | max 95 ns | 6 |
| Transition-time tt | Output Y; VCC = 4.5 V; TA = 25°C | typ 8 · max 15 ns | 6 |
| Transition-time tt | Output Y; VCC = 4.5 V; TA = –40°C to 85°C | max 19 ns | 6 |
| Transition-time tt | Output Y; VCC = 6 V; TA = 25°C | typ 6 · max 13 ns | 6 |
| Transition-time tt | Output Y; VCC = 6 V; TA = –40°C to 85°C | max 16 ns | 6 |
| Power dissipation capacitance per gate Cpd | No load; VCC = 2 V to 6 V; typical at TA = 25°C | typ 20 pF | 7 |

bitfieldaudio/otto-hardware
OTTO hardware files for upcoming beta. WORK IN PROGRESS


fl4p/shunt-reversal
MOSFET H-bridge current-reversal switch for shunt thermal-EMF cancellation. Script-generated KiCad. NOT RELEASED - see DESIGN.md section 12.

misko/prompt2device
The separate vNext PCB skill and orchestrator package is available alongside the reference workflow below; existing projects keep their accepted toolchain until an explicit migration.

misko/prompt2device
The separate vNext PCB skill and orchestrator package is available alongside the reference workflow below; existing projects keep their accepted toolchain until an explicit migration.

fl4p/shunt-reversal
MOSFET H-bridge current-reversal switch for shunt thermal-EMF cancellation. Script-generated KiCad. NOT RELEASED - see DESIGN.md section 12.
Yes. The symbol is 74xx:74HC14 and the footprint Package_SO:SOIC-14_3.9x8.7mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
SOIC-14, with 14 pins. Its footprint is drawn on this page.
Texas Instruments publishes it: the Datasheet link on this page opens it.
JLCPCB lists it as part C6820, with 183,583 in stock; the sellers' links on this page open their listings.
Parts like it in the library: the MC14584BD by onsemi, the MC14106BD by onsemi, the CD4007UBM/TR by HGSEMI and the RS6G14XP by Jiangsu RUNIC Tech. Check their datasheets: a part that fits the footprint may still differ in its ratings.
6 boards in 4 repositories on GitHub; the most starred are listed on this page, with their KiCad files.