"""
SN74HC14PWR
"""
# File Location: src/jitxexamples/components/logic/texas_instruments_SN74HC14PWR.py
# To use this component:
# from jitx.circuit import Circuit
# from jitxexamples.components.logic.texas_instruments_SN74HC14PWR import SN74HC14PWRCircuit
# class Example(Circuit):
# u1 = SN74HC14PWRCircuit()
from jitx import Circuit, Polygon
from jitx.anchor import Anchor
from jitx.common import Power
from jitx.component import Component
from jitx.landpattern import PadMapping
from jitx.net import Port, ShortTrace
from jitx.shapes.composites import rectangle
from jitx.shapes.primitive import Circle, Polyline, Text
from jitx.si import Toleranced
from jitx.symbol import Direction, Pin, Symbol, SymbolMapping
from jitx.units import F
from jitxlib.landpatterns.generators.sop import SOP
from jitxlib.landpatterns.ipc import DensityLevel
from jitxlib.landpatterns.leads import LeadProfile, SMDLead
from jitxlib.landpatterns.leads.protrusions import SmallGullWingLeads
from jitxlib.landpatterns.package import RectanglePackage
from jitxlib.parts import Capacitor
[docs]
class SymbolSchmittInverter(Symbol):
A = Pin((-2, 0), 2, Direction.Left)
Y = Pin((1, 0), 2, Direction.Right)
reference_designator = Text(">REF", 0.55559, Anchor.C).at((0, -2.0))
shapes = [
# Inverter triangle
Polygon([(-2, 1.5), (-2, -1.5), (1, 0)]),
# Inversion bubble at output
Circle(radius=0.2).at((1.2, 0)),
# Refined hysteresis symbol - more recognizable square wave
Polyline(0.1, [(-1.4, -0.3), (-0.8, -0.3), (-0.8, 0.3)]),
Polyline(0.1, [(-0.6, 0.3), (-1.2, 0.3), (-1.2, -0.3)]),
]
[docs]
class SymbolSN74HC14PWR(Symbol):
pin_name_size = 0.7874
pad_name_size = 0.7874
GND = Pin((-2, -1), 2, Direction.Left)
VCC = Pin((2, 1), 2, Direction.Right)
reference_designator = Text(">REF", 0.55559, Anchor.W).at((-2, 2.8))
value_label = Text(">VALUE", 0.55559, Anchor.W).at((-2, 2.0))
box = rectangle(4.0, 3.0)
[docs]
class SN74HC14PWR(Component):
"""Schmitt Trigger 6 21ns@6V,50pF 2uA 2V~6V TSSOP-14 Inverters ROHS"""
name = "C6821"
manufacturer = "Texas Instruments"
mpn = "SN74HC14PWR"
datasheet = "https://www.ti.com/lit/ds/symlink/sn74hc14.pdf?ts=1763667042597"
reference_designator_prefix = "U"
landpattern = (
SOP(num_leads=14)
.lead_profile(
LeadProfile(
span=Toleranced(6.4, 0.2), # LS6_4
pitch=0.65, # P0_65
type=SMDLead(
length=Toleranced(0.6, 0.15), # Typical lead length for TSSOP
width=Toleranced(0.25, 0.05), # Typical lead width for TSSOP
lead_type=SmallGullWingLeads,
),
)
)
.package_body(
RectanglePackage(
width=Toleranced(4.4, 0.1), # W4_4
length=Toleranced(5.0, 0.1), # L5_0
height=Toleranced(1.2, 0.1), # Typical height
)
)
.density_level(DensityLevel.A) # Nominal density
)
P_1A = Port()
P_1Y = Port()
P_2A = Port()
P_2Y = Port()
P_3A = Port()
P_3Y = Port()
GND = Port()
P_4Y = Port()
P_4A = Port()
P_5Y = Port()
P_5A = Port()
P_6Y = Port()
P_6A = Port()
VCC = Port()
symbol = SymbolSN74HC14PWR()
schmitts = [SymbolSchmittInverter() for _ in range(6)]
mappings = [
SymbolMapping(
{
P_1A: schmitts[0].A,
P_1Y: schmitts[0].Y,
P_2A: schmitts[1].A,
P_2Y: schmitts[1].Y,
P_3A: schmitts[2].A,
P_3Y: schmitts[2].Y,
GND: symbol.GND,
P_4Y: schmitts[3].Y,
P_4A: schmitts[3].A,
P_5Y: schmitts[4].Y,
P_5A: schmitts[4].A,
P_6Y: schmitts[5].Y,
P_6A: schmitts[5].A,
VCC: symbol.VCC,
}
),
PadMapping(
{
P_1A: landpattern.p[1],
P_1Y: landpattern.p[2],
P_2A: landpattern.p[3],
P_2Y: landpattern.p[4],
P_3A: landpattern.p[5],
P_3Y: landpattern.p[6],
GND: landpattern.p[7],
P_4Y: landpattern.p[8],
P_4A: landpattern.p[9],
P_5Y: landpattern.p[10],
P_5A: landpattern.p[11],
P_6Y: landpattern.p[12],
P_6A: landpattern.p[13],
VCC: landpattern.p[14],
}
),
]
[docs]
class SN74HC14PWRCircuit(Circuit):
power = Power()
inv = SN74HC14PWR()
def __init__(self) -> None:
self.GND = self.inv.GND + self.power.Vn
self.VCC = self.inv.VCC + self.power.Vp
self.byp = Capacitor(capacitance=(0.1e-6) * F)
self.byp_short_traces = [
ShortTrace(self.inv.VCC, self.byp.p1),
ShortTrace(self.byp.p2, self.inv.GND),
]
Device: type[SN74HC14PWRCircuit] = SN74HC14PWRCircuit
