component
CD74HC40103QM96EP
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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{
"number": "1",
"name": "CP",
"type": "input",
"description": "Clock input; the counter decrements by one on each positive transition, with synchronous operations changing on negative-to-positive clock transitions."
},
{
"number": "2",
"name": "MR",
"type": "input",
"description": "Active-low master reset that asynchronously clears the counter to its maximum count of 255 regardless of the state of any other input."
},
{
"number": "3",
"name": "TE",
"type": "input",
"description": "Active-low terminal enable; counting is inhibited when TE is high, and TC goes low at zero count only when TE is low, which is used for cascading."
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{
"number": "4",
"name": "P0",
"type": "input",
"description": "Parallel preset data input for the LSB of the 8-bit preset word, loaded on PE (synchronous) or PL (asynchronous) preset."
},
{
"number": "5",
"name": "P1",
"type": "input",
"description": "Parallel preset data input (bit 1) of the 8-bit preset word, loaded on PE (synchronous) or PL (asynchronous) preset."
},
{
"number": "6",
"name": "P2",
"type": "input",
"description": "Parallel preset data input (bit 2) of the 8-bit preset word, loaded on PE (synchronous) or PL (asynchronous) preset."
},
{
"number": "7",
"name": "P3",
"type": "input",
"description": "Parallel preset data input (bit 3) of the 8-bit preset word, loaded on PE (synchronous) or PL (asynchronous) preset."
},
{
"number": "8",
"name": "GND",
"type": "power_in",
"description": "Device ground; all voltages are referenced to GND."
},
{
"number": "9",
"name": "PL (ASYNC)",
"type": "input",
"description": "Active-low asynchronous preset enable that forces data at P0-P7 into the counter regardless of the state of PE, TE, or CP."
},
{
"number": "10",
"name": "P4",
"type": "input",
"description": "Parallel preset data input (bit 4) of the 8-bit preset word, loaded on PE (synchronous) or PL (asynchronous) preset."
},
{
"number": "11",
"name": "P5",
"type": "input",
"description": "Parallel preset data input (bit 5) of the 8-bit preset word, loaded on PE (synchronous) or PL (asynchronous) preset."
},
{
"number": "12",
"name": "P6",
"type": "input",
"description": "Parallel preset data input (bit 6) of the 8-bit preset word, loaded on PE (synchronous) or PL (asynchronous) preset."
},
{
"number": "13",
"name": "P7",
"type": "input",
"description": "Parallel preset data input for the MSB of the 8-bit preset word, loaded on PE (synchronous) or PL (asynchronous) preset."
},
{
"number": "14",
"name": "TC",
"type": "output",
"description": "Active-low terminal count output that goes low when the count reaches zero (with TE low) and remains low for one full clock period."
},
{
"number": "15",
"name": "PE (SYNC)",
"type": "input",
"description": "Active-low synchronous preset enable; when low, P0-P7 data are clocked into the counter on the next positive clock transition regardless of TE."
},
{
"number": "16",
"name": "VCC",
"type": "power_in",
"description": "Supply voltage, specified from 2 V to 6 V (recommended operating range)."
}
],
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"pages_sent": 14,
"cost_usd": 0.0564,
"at": "2026-10-11T13:06:59"
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"metadata": {
"specs": {
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"Package": "SOIC-16",
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