component
CD74ACT161M96
Public Made by Adomby adom
Texas Instruments Counters, Dividers, SOIC-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"subcategory": "Counters, Dividers",
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{
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"name": "CLR",
"type": "input",
"description": "Asynchronous clear input; low level sets all four flip-flop outputs low regardless of other inputs."
},
{
"number": "2",
"name": "CLK",
"type": "input",
"description": "Buffered clock input; triggers the four flip-flops on the rising edge of the clock waveform."
},
{
"number": "3",
"name": "A",
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"description": "Preset data input A; defines the preset value for output bit A when LOAD is low."
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{
"number": "4",
"name": "B",
"type": "input",
"description": "Preset data input B; defines the preset value for output bit B when LOAD is low."
},
{
"number": "5",
"name": "C",
"type": "input",
"description": "Preset data input C; defines the preset value for output bit C when LOAD is low."
},
{
"number": "6",
"name": "D",
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"description": "Preset data input D; defines the preset value for output bit D when LOAD is low."
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{
"number": "7",
"name": "ENP",
"type": "input",
"description": "Parallel count enable input; counter counts only when both ENP and ENT are high."
},
{
"number": "8",
"name": "GND",
"type": "power_in",
"description": "Ground; 0 V reference voltage."
},
{
"number": "9",
"name": "LOAD",
"type": "input",
"description": "Load input; low level synchronously presets counter outputs to match preset data inputs on next clock pulse."
},
{
"number": "10",
"name": "ENT",
"type": "input",
"description": "Terminal count enable input; counter counts when both ENP and ENT are high; fed forward to enable RCO."
},
{
"number": "11",
"name": "QD",
"type": "output",
"description": "4-bit binary counter output bit D (most significant bit)."
},
{
"number": "12",
"name": "QC",
"type": "output",
"description": "4-bit binary counter output bit C."
},
{
"number": "13",
"name": "QB",
"type": "output",
"description": "4-bit binary counter output bit B."
},
{
"number": "14",
"name": "QA",
"type": "output",
"description": "4-bit binary counter output bit A (least significant bit)."
},
{
"number": "15",
"name": "RCO",
"type": "output",
"description": "Ripple-carry output; produces high-level pulse when counter reaches terminal count (maximum value) and ENT is high."
},
{
"number": "16",
"name": "VCC",
"type": "power_in",
"description": "Positive supply voltage; 4.5 V to 5.5 V recommended operating range."
}
],
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"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
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"pages_sent": 18,
"cost_usd": 0.1364,
"at": "2026-10-07T02:16:45"
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"pages": 18,
"sha256": "131692bc612740db",
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"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 16,
"described": 16,
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"metadata": {
"specs": {
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"Package": "SOIC-16",
"Category": "Logic",
"Pins": "16"
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