component
CS48505AM
Public Made by Adomby adom
Chipanalog , MSOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"title": "CS48505AM",
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"number": "1",
"name": "RO",
"type": "output",
"description": "Receiver data output; it is high-impedance when REB is high or open, and it is held at fail-safe high when the bus is open, shorted, or idle."
},
{
"number": "2",
"name": "REB",
"type": "input",
"description": "Active-low receiver enable with an internal resistor pull-up; the receiver is enabled only when REB is logic low, and the output is high-impedance when REB is high or open."
},
{
"number": "3",
"name": "DE",
"type": "input",
"description": "Active-high driver enable with an internal pull-down; A and B are high-impedance when DE is low or open, and the input logic high threshold is 2.0 V minimum with a low threshold of 0.8 V maximum."
},
{
"number": "4",
"name": "DI",
"type": "input",
"description": "Driver data input with an internal pull-up to VCC; A goes high and B goes low when DI is high, and the input logic thresholds are 2.0 V minimum (high) and 0.8 V maximum (low)."
},
{
"number": "5",
"name": "GND",
"type": "power_in",
"description": "Ground reference for the device; all voltages are referenced to GND."
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{
"number": "6",
"name": "A",
"type": "bidirectional",
"description": "Non-inverting RS-485 bus input/output; bus voltage must stay within -7 V to 12 V in operation, with an absolute maximum range of -8 V to 13 V."
},
{
"number": "7",
"name": "B",
"type": "bidirectional",
"description": "Inverting RS-485 bus input/output; bus voltage must stay within -7 V to 12 V in operation, with an absolute maximum range of -8 V to 13 V."
},
{
"number": "8",
"name": "VCC",
"type": "power_in",
"description": "Supply pin rated 3.0 V to 5.5 V (absolute maximum 7 V); a 100 nF to 220 nF decoupling capacitor should be placed as close as possible to this pin."
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"metadata": {
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"Package": "MSOP-8",
"Category": "",
"Pins": "8"
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{
"name": "Differential output voltage (RL=60Ω, -7V≤Vtest≤12V)",
"symbol": "|VOD|",
"kind": "electrical",
"unit": "V",
"min": 1.5,
"typ": null,
"max": 3.6,
"conditions": "RL = 60Ω, –7V ≤ Vtest ≤ 12V, 见图 8-1",
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{
"name": "Differential output voltage (RL=60Ω, 4.5V≤VCC≤5.5V)",
"symbol": "|VOD|",
"kind": "electrical",
"unit": "V",
"min": 2.1,
"typ": null,
"max": 3.6,
"conditions": "RL = 60Ω，–7V ≤ Vtest ≤ 12V，4.5V ≤ VCC ≤ 5.5V，见图 8-1",
"source_page": 6,
"source": "datasheet"
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{
"name": "Differential output voltage (RL=100Ω)",
"symbol": "|VOD|",
"kind": "electrical",
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"name": "Differential output voltage (RL=54Ω)",
"symbol": "|VOD|",
"kind": "electrical",
"unit": "V",
"min": 1.5,
"typ": null,
"max": 3.6,
"conditions": "RL = 54Ω，CL = 50pF，见图 8-2",
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"symbol": "Δ|VOD|",
"kind": "electrical",
"unit": "mV",
"min": -50,
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"source_page": 6,
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{
"name": "Common-mode output voltage",
"symbol": "VOC",
"kind": "electrical",
"unit": "V",
"min": 1,
"typ": null,
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"conditions": "RL = 54Ω 或 100Ω，CL = 50pF，见图 8-2",
"source_page": 6,
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{
"name": "Steady-state common-mode output voltage change",
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"typ": null,
"max": 450,
"conditions": "",
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"source": "datasheet"
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{
"name": "Driver short-circuit output current",
"symbol": "|IOS|",
"kind": "electrical",
"unit": "mA",
"min": 100,
"typ": null,
"max": 150,
"conditions": "DE = VCC，–7V ≤ VO ≤ 12V，或 A 和 B 短接",
"source_page": 6,
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},
{
"name": "Bus input current (VI=12V)",
"symbol": "II",
"kind": "electrical",
"unit": "μA",
"min": 75,
"typ": null,
"max": 125,
"conditions": "DE = 0V，VCC = 0V 或 5.5V，VI = 12V",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Bus input current (VI=-7V)",
"symbol": "II",
"kind": "electrical",
"unit": "μA",
"min": -100,
"typ": null,
"max": -40,
"conditions": "DE = 0V，VCC = 0V 或 5.5V，VI = –7V",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Bus input impedance",
"symbol": "RI",
"kind": "electrical",
"unit": "kΩ",
"min": 96,
"typ": null,
"max": null,
"conditions": "VA = –7V，VB = 12V 或 VA = 12V，VB = –7V (see note 1)",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Positive input threshold voltage",
"symbol": "VTH+",
"kind": "electrical",
"unit": "mV",
"min": -110,
"typ": null,
"max": -50,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Negative input threshold voltage",
"symbol": "VTH-",
"kind": "electrical",
"unit": "mV",
"min": -200,
"typ": null,
"max": -140,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Input hysteresis voltage",
"symbol": "VHYS",
"kind": "electrical",
"unit": "mV",
"min": 30,
"typ": null,
"max": null,
"conditions": "",
"source_page": 6,
"source": "datasheet"
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{
"name": "Output low voltage",
"symbol": "VOL",
"kind": "electrical",
"unit": "V",
"min": 0.2,
"typ": null,
"max": 0.4,
"conditions": "IOL = 4mA",
"source_page": 6,
"source": "datasheet"
},
{
"name": "High-impedance output current",
"symbol": "IOZR",
"kind": "electrical",
"unit": "μA",
"min": -1,
"typ": null,
"max": 1,
"conditions": "REB = VCC，VO = 0V 或 VCC",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Receiver short-circuit output current",
"symbol": "IOSR",
"kind": "electrical",
"unit": "mA",
"min": 95,
"typ": null,
"max": null,
"conditions": "REB = DE = 0V，见图 8-3",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Input current (DI, DE, REB)",
"symbol": "IIN",
"kind": "electrical",
"unit": "μA",
"min": -5,
"typ": null,
"max": 5,
"conditions": "0V ≤ VIN ≤ VCC",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Quiescent supply current (driver and receiver enabled)",
"symbol": "ICC",
"kind": "electrical",
"unit": "μA",
"min": null,
"typ": 900,
"max": 1400,
"conditions": "驱动器和接收机使能，REB = 0V，DE = VCC，空载",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Quiescent supply current (driver enabled, receiver disabled)",
"symbol": "ICC",
"kind": "electrical",
"unit": "μA",
"min": null,
"typ": 550,
"max": 900,
"conditions": "驱动器使能，接收机关闭，REB = VCC，DE = VCC，空载",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Quiescent supply current (driver disabled, receiver enabled)",
"symbol": "ICC",
"kind": "electrical",
"unit": "μA",
"min": null,
"typ": 500,
"max": 800,
"conditions": "驱动器关闭，接收机使能，REB = 0V，DE = 0V，空载",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Standby supply current (driver and receiver disabled)",
"symbol": "ICC",
"kind": "electrical",
"unit": "μA",
"min": null,
"typ": null,
"max": 5,
"conditions": "驱动器关闭，接收机关闭，REB = VCC，DE = 0V，DI = VCC，空载",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Driver differential output rise/fall time",
"symbol": "tr, tf",
"kind": "timing",
"unit": "ns",
"min": 150,
"typ": null,
"max": 500,
"conditions": "RL = 54Ω，CL = 50pF，见图 8-4 (CS48505Ax)",
"source_page": 7,
"source": "datasheet"
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{
"name": "Driver propagation delay",
"symbol": "tPHL, tPLH",
"kind": "timing",
"unit": "ns",
"min": 100,
"typ": null,
"max": 250,
"conditions": "(CS48505Ax)",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Driver pulse width distortion",
"symbol": "tSK(P)",
"kind": "timing",
"unit": "ns",
"min": null,
"typ": null,
"max": 10,
"conditions": "|tPHL – tPLH| (CS48505Ax)",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Driver disable time",
"symbol": "tPHZ, tPLZ",
"kind": "timing",
"unit": "ns",
"min": 10,
"typ": null,
"max": 30,
"conditions": "见图 8-5 和图 8-6 (CS48505Ax)",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Driver enable time (REB=0V)",
"symbol": "tPZH, tPZL",
"kind": "timing",
"unit": "ns",
"min": 300,
"typ": null,
"max": 800,
"conditions": "REB = 0V，见图 8-5 和图 8-6 (CS48505Ax)",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Driver enable time (REB=VCC)",
"symbol": "tPZH, tPZL",
"kind": "timing",
"unit": "μs",
"min": 6,
"typ": null,
"max": 12,
"conditions": "REB = VCC，见图 8-5 和图 8-6 (CS48505Ax)",
"source_page": 7,
"source": "datasheet"
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{
"name": "Receiver output rise/fall time",
"symbol": "tr, tf",
"kind": "timing",
"unit": "ns",
"min": 10,
"typ": null,
"max": 20,
"conditions": "CL = 15pF，见图 8-7 (CS48505Ax)",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Receiver propagation delay",
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"kind": "timing",
"unit": "ns",
"min": 50,
"typ": null,
"max": 100,
"conditions": "(CS48505Ax)",
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{
"name": "Receiver pulse width distortion",
"symbol": "tSK(P)",
"kind": "timing",
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"min": null,
"typ": null,
"max": 7,
"conditions": "|tPHL – tPLH| (CS48505Ax)",
"source_page": 7,
"source": "datasheet"
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{
"name": "Receiver disable time",
"symbol": "tPHZ, tPLZ",
"kind": "timing",
"unit": "ns",
"min": 30,
"typ": null,
"max": 60,
"conditions": "见图 8-8 (CS48505Ax)",
"source_page": 7,
"source": "datasheet"
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{
"name": "Receiver enable time (DE=VCC)",
"symbol": "tPZH(1), tPZL(1), tPZH(2), tPZL(2)",
"kind": "timing",
"unit": "ns",
"min": 50,
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{
"name": "Receiver enable time (DE=0V)",
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"kind": "timing",
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"min": 6,
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"source_page": 7,
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{
"name": "Supply voltage VCC",
"symbol": "VCC",
"kind": "recommended_operating",
"unit": "V",
"min": 3,
"typ": 5,
"max": 5.5,
"conditions": "参照 GND",
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{
"name": "Bus input voltage",
"symbol": "VIN",
"kind": "recommended_operating",
"unit": "V",
"min": -7,
"typ": null,
"max": 12,
"conditions": "",
"source_page": 5,
"source": "datasheet"
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{
"name": "High-level input threshold voltage",
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"unit": "V",
"min": 2,
"typ": null,
"max": null,
"conditions": "",
"source_page": 5,
"source": "datasheet"
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{
"name": "Low-level input threshold voltage",
"symbol": "VIL",
"kind": "recommended_operating",
"unit": "V",
"min": 0,
"typ": null,
"max": 0.8,
"conditions": "",
"source_page": 5,
"source": "datasheet"
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{
"name": "Differential load resistance",
"symbol": "RL",
"kind": "recommended_operating",
"unit": "Ω",
"min": 54,
"typ": null,
"max": null,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Data rate CS48505Ax",
"symbol": "1/tUI",
"kind": "recommended_operating",
"unit": "Mbps",
"min": null,
"typ": null,
"max": 0.5,
"conditions": "CS48505Ax",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Operating ambient temperature",
"symbol": "TA",
"kind": "recommended_operating",
"unit": "°C",
"min": -40,
"typ": null,
"max": 125,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Operating junction temperature",
"symbol": "TJ",
"kind": "recommended_operating",
"unit": "°C",
"min": -40,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 5,
"source": "datasheet"
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{
"name": "Supply voltage VCC (absolute)",
"symbol": "VCC",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.5,
"typ": null,
"max": 7,
"conditions": "参照 GND，峰值",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Bus voltage A, B",
"symbol": "VIO",
"kind": "absolute_maximum",
"unit": "V",
"min": -8,
"typ": null,
"max": 13,
"conditions": "总线 A，B",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Bus voltage difference between A and B",
"symbol": "VIO_DIF",
"kind": "absolute_maximum",
"unit": "V",
"min": -8,
"typ": null,
"max": 13,
"conditions": "总线 A 和 B 之间的电压差",
"source_page": 5,
"source": "datasheet"
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