component
BU9873FJ-GTE2
Public Made by Adomby adom
ROHM Semicon Real-time Clocks (RTC), SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"title": "BU9873FJ-GTE2",
"brief": "ROHM Semicon Real-time Clocks (RTC), SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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"package": "SOIC-8",
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"category": "Clock and Timing",
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"digikey": "BU9873FJ-GTE2TR-ND",
"mouser": "755-BU9873FJ-GTE2"
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{
"number": "1",
"name": "32KOUT",
"type": "output",
"description": "The 32KOUT pin outputs a 32.768 kHz clock pulse under internal register control, is enabled from power-on at 0V, and is a CMOS push-pull output."
},
{
"number": "2",
"name": "SCL",
"type": "input",
"description": "The SCL pin inputs the clock pulses that synchronize data transfer on the SDA pin."
},
{
"number": "3",
"name": "SDA",
"type": "bidirectional",
"description": "The SDA pin inputs and outputs data for writing and reading, synchronized with SCL, and is an N-channel open-drain output."
},
{
"number": "4",
"name": "VSS",
"type": "power_in",
"description": "The VSS pin is the ground connection."
},
{
"number": "5",
"name": "INTRB",
"type": "output",
"description": "The INTRB pin outputs periodic or alarm interrupts (Alarm_A, Alarm_B) to the CPU, is disabled during power-on from 0V, and is an N-channel open-drain output."
},
{
"number": "6",
"name": "OSCOUT",
"type": "passive",
"description": "The OSCOUT pin connects to the 32.768 kHz crystal oscillator, as all other oscillation circuit components are integrated in the IC."
},
{
"number": "7",
"name": "OSCIN",
"type": "passive",
"description": "The OSCIN pin connects to the 32.768 kHz crystal oscillator, as all other oscillation circuit components are integrated in the IC."
},
{
"number": "8",
"name": "VDD",
"type": "power_in",
"description": "The VDD pin is the power supply connection, with a supply voltage of 1.8 to 5.5 V under operating conditions."
}
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"at": "2026-10-27T06:49:19"
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"metadata": {
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"Package": "SOIC-8",
"Category": "Clock and Timing",
"Pins": "8"
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