component
DAC8740HRGET
Public Made by Adomby adom
Texas Instruments Interface - Specialized, TQFN-24-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"slug": "dac8740hrget",
"title": "DAC8740HRGET",
"brief": "Texas Instruments Interface - Specialized, TQFN-24-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
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"component": {
"mpn": "DAC8740HRGET",
"manufacturer": "Texas Instruments",
"package": "TQFN-24-EP(4x4)",
"pin_count": 25,
"category": "Interface ICs",
"subcategory": "Interface - Specialized",
"datasheet": "https://www.ti.com/lit/ds/symlink/dac8740hrget.pdf",
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"lbr": "dac8740hrget.lbr"
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"distributor_links": {
"lcsc": "C2674179",
"digikey": "296-48335-2-ND",
"mouser": "595-DAC8740HRGET"
},
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"source": "Component Ocean /api/assign-pns",
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"pins": [
{
"number": "1",
"name": "XEN",
"type": "input",
"description": "Logic low enables the crystal oscillator (external crystal required), logic high disables it and selects an external CMOS clock or the internal oscillator; no digital input pin should be left floating."
},
{
"number": "2",
"name": "CLKO",
"type": "output",
"description": "Clock output that can be configured when using the internal oscillator or an external crystal."
},
{
"number": "3",
"name": "CLK_CFG0",
"type": "input",
"description": "Configures the input/output clocking scheme together with XEN and CLK_CFG1; must not be left floating."
},
{
"number": "4",
"name": "CLK_CFG1",
"type": "input",
"description": "Configures the input/output clocking scheme together with XEN and CLK_CFG0; must not be left floating."
},
{
"number": "5",
"name": "RST",
"type": "input",
"description": "Logic low resets the device and places it in power-down mode; logic high returns it to normal operation; must not be left floating."
},
{
"number": "6",
"name": "CD",
"type": "output",
"description": "HART mode: carrier detect, logic high indicates a valid carrier is present. FF or PA mode: while not transmitting, high indicates a valid carrier; while transmitting, high indicates the jabber inhibitor has triggered."
},
{
"number": "7",
"name": "UART_IN",
"type": "input",
"description": "UART data input; must not be left floating."
},
{
"number": "8",
"name": "UART_RTS",
"type": "bidirectional",
"description": "HART mode: logic high enables the demodulator and disables the modulator, logic low does the reverse. FF or PA mode: reports transmit FIFO threshold information as programmed by the packet initiation code."
},
{
"number": "9",
"name": "DUPLEX",
"type": "input",
"description": "Logic high enables full-duplex (internal loop-back) test mode; must not be left floating."
},
{
"number": "10",
"name": "UART_OUT",
"type": "output",
"description": "UART data output."
},
{
"number": "11",
"name": "IOVDD",
"type": "power_in",
"description": "Interface supply for digital input and output circuitry; this voltage sets the logical thresholds for the digital interface."
},
{
"number": "12",
"name": "GND",
"type": "power_in",
"description": "Digital ground, the ground reference for all digital circuitry of the device."
},
{
"number": "13",
"name": "REG_CAP",
"type": "output",
"description": "Capacitor connection for the internal regulator."
},
{
"number": "14",
"name": "MOD_OUT",
"type": "output",
"description": "Modem output: FSK sinusoid in HART mode or Manchester coded data in FOUNDATION Fieldbus and PROFIBUS PA modes; requires 5 nF to 22 nF parallel capacitance in HART mode, or 0 pF to 100 pF in FF/PA mode."
},
{
"number": "15",
"name": "REF",
"type": "bidirectional",
"description": "Outputs the internal reference voltage when the internal reference is enabled; is the external 2.5-V reference input when the internal reference is disabled."
},
{
"number": "16",
"name": "MOD_IN",
"type": "input",
"description": "HART FSK input or FOUNDATION Fieldbus/PROFIBUS PA Manchester data input; do not connect this pin if an external filter is used."
},
{
"number": "17",
"name": "MOD_INF",
"type": "input",
"description": "With the internal band-pass filter, connect 680 pF in HART mode or 120 pF in FF/PA mode; with an external filter, connect that filter's output here."
},
{
"number": "18",
"name": "AVDD",
"type": "power_in",
"description": "Power supply for the analog circuitry of the device."
},
{
"number": "19",
"name": "GND",
"type": "power_in",
"description": "Analog ground, the ground reference for the power supply input."
},
{
"number": "20",
"name": "X2",
"type": "input",
"description": "Crystal stimulus connection for the crystal oscillator."
},
{
"number": "21",
"name": "X1",
"type": "input",
"description": "Crystal drive or external clock input."
},
{
"number": "22",
"name": "GND",
"type": "power_in",
"description": "Digital ground, the ground reference for all digital circuitry of the device."
},
{
"number": "23",
"name": "REF_EN",
"type": "input",
"description": "Logic high enables the internal 1.5-V reference; must not be left floating."
},
{
"number": "24",
"name": "BPF_EN",
"type": "input",
"description": "Logic high enables the internal band-pass filter; must not be left floating."
},
{
"number": "25",
"name": "EP",
"type": "passive",
"description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
}
],
"provenance": {
"extractor": "extract_pins 0.3",
"factory_chain": {
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"extractor": "extract_pins 0.3",
"primary_model": "claude-haiku-5-5",
"primary_mode": "text",
"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: The datasheet lists the package as 24-pin VQFN (RGE, 4 mm x 4 mm), not TQFN-24-EP as in the package "
],
"pages_sent": 17,
"cost_usd": 0.0366,
"at": "2026-10-30T22:53:29"
},
"datasheet": {
"url": "https://www.ti.com/lit/ds/symlink/dac8740hrget.pdf",
"pages": 49,
"sha256": "ee898989d48c115d",
"source_tier": "mfr"
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"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
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"described": 25,
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"refuses_to_fabricate": true
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"sha256": "096fc110543e6d324c5120c2d38e3dca87a389da9b6fac234f1fe40856295ef4",
"checked": "2026-10-30",
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"metadata": {
"specs": {
"Manufacturer": "Texas Instruments",
"Package": "TQFN-24-EP(4x4)",
"Category": "Interface ICs",
"Pins": "25"
}
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"author": {
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"email": "[email protected]"
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