CD74HC221M96

@@ -65,19 +65,19 @@         "number": "3",         "name": "1R",         "type": "input",-        "description": "Active-LOW overriding reset input for monostable 1; a LOW level immediately terminates the output pulse, forcing 1Q LOW and 1Q\u0304 HIGH; minimum pulse width 14 ns at 4.5 V."+        "description": "Active-LOW overriding reset input for monostable 1; a LOW level immediately terminates the output pulse, forcing 1Q LOW and 1Q̄ HIGH; minimum pulse width 14 ns at 4.5 V."       },       {         "number": "4",-        "name": "1Q\u0304",+        "name": "1Q̄",         "type": "output",-        "description": "Buffered complementary output of monostable 1; idles HIGH, pulses LOW for tW = 0.7 \u00d7 RX \u00d7 CX; VOH \u2265 4.4 V and VOL \u2264 0.1 V at VCC = 4.5 V, IO = \u00b10.02 mA."+        "description": "Buffered complementary output of monostable 1; idles HIGH, pulses LOW for tW = 0.7 × RX × CX; VOH ≥ 4.4 V and VOL ≤ 0.1 V at VCC = 4.5 V, IO = ±0.02 mA."       },       {         "number": "5",         "name": "2Q",         "type": "output",-        "description": "Buffered true output of monostable 2; idles LOW, pulses HIGH for tW = 0.7 \u00d7 RX \u00d7 CX; VOH \u2265 4.4 V and VOL \u2264 0.1 V at VCC = 4.5 V, IO = \u00b10.02 mA."+        "description": "Buffered true output of monostable 2; idles LOW, pulses HIGH for tW = 0.7 × RX × CX; VOH ≥ 4.4 V and VOL ≤ 0.1 V at VCC = 4.5 V, IO = ±0.02 mA."       },       {         "number": "6",@@ -89,13 +89,13 @@         "number": "7",         "name": "2CXRX",         "type": "passive",-        "description": "External timing resistor-capacitor junction for monostable 2; RX connected between this pin and VCC, CX between pin 6 and GND; minimum RX = 500 \u03a9 typical."+        "description": "External timing resistor-capacitor junction for monostable 2; RX connected between this pin and VCC, CX between pin 6 and GND; minimum RX = 500 Ω typical."       },       {         "number": "8",         "name": "GND",         "type": "power_in",-        "description": "Ground (0 V) supply reference; maximum DC VCC or ground current ICC = \u00b150 mA."+        "description": "Ground (0 V) supply reference; maximum DC VCC or ground current ICC = ±50 mA."       },       {         "number": "9",@@ -113,19 +113,19 @@         "number": "11",         "name": "2R",         "type": "input",-        "description": "Active-LOW overriding reset input for monostable 2; a LOW level immediately terminates the output pulse, forcing 2Q LOW and 2Q\u0304 HIGH; minimum pulse width 14 ns at 4.5 V."+        "description": "Active-LOW overriding reset input for monostable 2; a LOW level immediately terminates the output pulse, forcing 2Q LOW and 2Q̄ HIGH; minimum pulse width 14 ns at 4.5 V."       },       {         "number": "12",-        "name": "2Q\u0304",+        "name": "2Q̄",         "type": "output",-        "description": "Buffered complementary output of monostable 2; idles HIGH, pulses LOW for tW = 0.7 \u00d7 RX \u00d7 CX; VOH \u2265 4.4 V and VOL \u2264 0.1 V at VCC = 4.5 V, IO = \u00b10.02 mA."+        "description": "Buffered complementary output of monostable 2; idles HIGH, pulses LOW for tW = 0.7 × RX × CX; VOH ≥ 4.4 V and VOL ≤ 0.1 V at VCC = 4.5 V, IO = ±0.02 mA."       },       {         "number": "13",         "name": "1Q",         "type": "output",-        "description": "Buffered true output of monostable 1; idles LOW, pulses HIGH for tW = 0.7 \u00d7 RX \u00d7 CX; VOH \u2265 4.4 V and VOL \u2264 0.1 V at VCC = 4.5 V, IO = \u00b10.02 mA."+        "description": "Buffered true output of monostable 1; idles LOW, pulses HIGH for tW = 0.7 × RX × CX; VOH ≥ 4.4 V and VOL ≤ 0.1 V at VCC = 4.5 V, IO = ±0.02 mA."       },       {         "number": "14",@@ -137,13 +137,13 @@         "number": "15",         "name": "1CXRX",         "type": "passive",-        "description": "External timing resistor-capacitor junction for monostable 1; RX connected between this pin and VCC, CX between pin 14 and GND; minimum RX = 500 \u03a9 typical."+        "description": "External timing resistor-capacitor junction for monostable 1; RX connected between this pin and VCC, CX between pin 14 and GND; minimum RX = 500 Ω typical."       },       {         "number": "16",         "name": "VCC",         "type": "power_in",-        "description": "Positive supply voltage; HC type 2 V to 6 V operating range, absolute maximum \u22120.5 V to 7 V; quiescent ICC \u2264 8 \u00b5A typical at 6 V."+        "description": "Positive supply voltage; HC type 2 V to 6 V operating range, absolute maximum −0.5 V to 7 V; quiescent ICC ≤ 8 µA typical at 6 V."       }     ],     "provenance": {@@ -180,6 +180,46 @@     "viewers": {       "symbol": "viewers/symbol.html",       "footprint": "viewers/footprint.html"-    }+    },+    "models_3d": [+      {+        "file": "cd74hc221m96.step",+        "role": "plain",+        "up": "Z",+        "units": "mm",+        "origin": "footprint origin = pad-pattern centre",+        "seat": "z = 0",+        "extents_mm": [+          6.0,+          9.9,+          1.75+        ],+        "zmin_mm": -0.0,+        "centre_offset_mm": 0.0,+        "footprint_binding": "identity",+        "sha256": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf",+        "checked": "2026-10-07",+        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+      },+      {+        "file": "cd74hc221m96-etched.step",+        "role": "eda",+        "up": "Z",+        "units": "mm",+        "origin": "footprint origin = pad-pattern centre",+        "seat": "z = 0",+        "extents_mm": [+          6.0,+          9.9,+          1.75+        ],+        "zmin_mm": -0.0,+        "centre_offset_mm": 0.0,+        "footprint_binding": "identity",+        "sha256": "c7d54548b765d119b75556ba949d488531a3fc62ef6257e6f31a7b69ae1e1e39",+        "checked": "2026-10-07",+        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+      }+    ]   }-}\ No newline at end of file+}