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CS5550-ISZ
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Cirrus Logic Analog To Digital Converters (ADCs), SSOP-24. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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"brief": "Cirrus Logic Analog To Digital Converters (ADCs), SSOP-24. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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"package": "SSOP-24",
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{
"number": "1",
"name": "XOUT",
"type": "output",
"description": "Crystal oscillator output; an internal gate connects to XIN/XOUT for a crystal to provide the system clock."
},
{
"number": "2",
"name": "CPUCLK",
"type": "output",
"description": "Output of the on-chip oscillator which can drive one standard CMOS load."
},
{
"number": "3",
"name": "VD+",
"type": "power_in",
"description": "Positive digital supply relative to DGND."
},
{
"number": "4",
"name": "DGND",
"type": "power_in",
"description": "Digital ground; its common-mode potential must be equal to or above the common-mode potential of AGND."
},
{
"number": "5",
"name": "SCLK",
"type": "input",
"description": "Serial clock input that sets the data rate of SDI and SDO; recognized only when CS is low."
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{
"number": "6",
"name": "SDO",
"type": "tri_state",
"description": "Serial data port output, in a high impedance state when CS is high."
},
{
"number": "7",
"name": "CS",
"type": "input",
"description": "Chip select; when low the port recognizes SCLK, when high SDO is forced to high impedance, and it should be changed only when SCLK is low."
},
{
"number": "8",
"name": "TSTO",
"type": "unconnected",
"description": "Test output used for factory testing; must be left floating."
},
{
"number": "9",
"name": "AIN2+",
"type": "input",
"description": "Positive differential analog input of channel 2."
},
{
"number": "10",
"name": "AIN2-",
"type": "input",
"description": "Negative differential analog input of channel 2."
},
{
"number": "11",
"name": "VREFOUT",
"type": "output",
"description": "On-chip voltage reference output, nominally 2.5 V referenced to AGND."
},
{
"number": "12",
"name": "VREFIN",
"type": "input",
"description": "Input that establishes the voltage reference for the on-chip modulator."
},
{
"number": "13",
"name": "AGND",
"type": "power_in",
"description": "Analog ground; must be at the lowest potential."
},
{
"number": "14",
"name": "VA+",
"type": "power_in",
"description": "Positive analog supply relative to AGND."
},
{
"number": "15",
"name": "AIN1-",
"type": "input",
"description": "Negative differential analog input of channel 1."
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{
"number": "16",
"name": "AIN1+",
"type": "input",
"description": "Positive differential analog input of channel 1."
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{
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"name": "TSTO",
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"description": "Test output used for factory testing; must be left floating."
},
{
"number": "18",
"name": "TSTO",
"type": "unconnected",
"description": "Test output used for factory testing; must be left floating."
},
{
"number": "19",
"name": "RESET",
"type": "input",
"description": "When taken low, all internal registers are set to their default states."
},
{
"number": "20",
"name": "INT",
"type": "output",
"description": "Interrupt output; goes low to signal that an enabled event has occurred."
},
{
"number": "21",
"name": "TSTO",
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"description": "Test output used for factory testing; must be left floating."
},
{
"number": "22",
"name": "TSTO",
"type": "unconnected",
"description": "Test output used for factory testing; must be left floating."
},
{
"number": "23",
"name": "SDI",
"type": "input",
"description": "Serial data port input; data is input at a rate determined by SCLK."
},
{
"number": "24",
"name": "XIN",
"type": "input",
"description": "Crystal input, or external CMOS-compatible clock input providing the system clock."
}
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"1/24 pin names appear NOWHERE in the datasheet text: ['1:XOUT@p4']"
],
"pages_sent": 7,
"cost_usd": 0.1025,
"at": "2026-10-23T06:18:41"
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"Package": "SSOP-24",
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"typ": null,
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"name": "Common Mode + Signal AIN2",
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"name": "Crosstalk with AIN1 at Full Scale",
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{
"name": "Power Consumption Active State",
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"conditions": "VD+ = 5 V, outputs unloaded, inputs CMOS level",
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{
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"name": "Reference Input Voltage Range",
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"name": "Low-Level Input Voltage (5 V), All Pins Except XIN, SCLK, RESET",
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"name": "Low-Level Input Voltage (5 V), XIN",
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{
"name": "Low-Level Input Voltage (3 V), All Pins Except XIN, SCLK, RESET",
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{
"name": "Low-Level Output Voltage (5 V)",
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{
"name": "Low-Level Output Voltage (3 V)",
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{
"name": "Input Leakage Current (5 V)",
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{
"name": "Positive Digital Power Supply",
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