component
ADT7461ARMZ-R7
Public Made by Adomby adom
onsemi Temperature Sensors, MSOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownADT7461ARMZ-R7
onsemi · Temperature Sensors · MSOP-8
ADT7461ARMZ-R7 from onsemi, in a MSOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VDD | power_in | Positive supply, 3.0 V to 5.5 V; absolute maximum VDD to GND is −0.3 V to +5.5 V. |
| 2 | D+ | passive | Positive connection to the remote temperature sensor (diode); absolute range is −0.3 V to VDD + 0.3 V. |
| 3 | D− | passive | Negative connection to the remote temperature sensor (diode); absolute range to GND is −0.3 V to +0.6 V. |
| 4 | THERM | output | Open-drain overtemperature output used to turn a fan on/off or throttle a CPU clock; requires a pullup to VDD and is rated −0.3 V to VDD + 0.3 V, with input current limit −1 to +50 mA. |
| 5 | GND | power_in | Supply ground connection. |
| 6 | ALERT/THERM2 | output | Open-drain logic output used as interrupt or SMBus Alert, also configurable as a second THERM output; requires a pullup resistor and is rated −0.3 V to +5.5 V. |
| 7 | SDATA | bidirectional | SMBus serial data line, open-drain output; requires a pullup resistor and is rated −0.3 V to +5.5 V. |
| 8 | SCLK | input | SMBus serial clock logic input; requires a pullup resistor and is rated −0.3 V to +5.5 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | MSOP-8 |
| Category | Sensors |
| Pins | 8 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply Voltage, VDD | VDD | 3 | 3.3 | 5.5 | V | 4 | |
| Average Operating Supply Current, IDD (0.0625 Conversions/Sec Rate) | IDD | 170 | 215 | µA | 0.0625 Conversions/Sec Rate (Note 1) | 4 | |
| Standby Mode Average Supply Current | IDD | 5.5 | 10 | µA | Standby Mode, -40°C ≤ TA ≤ +85°C | 4 | |
| Standby Mode Average Supply Current | IDD | 5.5 | 20 | µA | Standby Mode, +85°C ≤ TA ≤ +120°C | 4 | |
| Undervoltage Lockout Threshold | 2.2 | 2.55 | 2.8 | V | VDD input, disables ADC, rising edge | 4 | |
| Power-On-Reset Threshold | 1 | 2.5 | V | 4 | |||
| Local Sensor Accuracy | -3 | 1 | 3 | °C | −40°C ≤ TA ≤ +100°C, 3.0 V ≤ VDD ≤ 3.6 V | 4 | |
| Remote Diode Sensor Accuracy | -1 | 1 | °C | +60°C ≤ TA ≤ +100°C, −55°C ≤ TD (Note 2) ≤ +150°C, 3.0 V ≤ VDD ≤ 3.6 V | 4 | ||
| Remote Diode Sensor Accuracy | -3 | 3 | °C | −40°C ≤ TA ≤ +120°C, −55°C ≤ TD (Note 2) ≤ +150°C, 3.0 V ≤ VDD ≤ 5.5 V | 4 | ||
| Conversion Time (averaging on) | 32.13 | 114.6 | ms | From stop bit to conversion complete (both channels), one-shot mode with averaging switched on | 4 | ||
| Conversion Time (averaging off) | 3.2 | 12.56 | ms | One-shot mode with averaging off (that is, conversion rate = 16, 32, or 64 conversions per second) | 4 | ||
| Output Low Voltage | VOL | 0.4 | V | IOUT = −6.0 mA (Note 3) | 4 | ||
| High Level Output Leakage Current | IOH | 0.1 | 1 | µA | VOUT = VDD (Note 3) | 4 | |
| ALERT Output Low Sink Current | 1 | mA | ALERT Forced to 0.4 V | 4 | |||
| Logic Input High Voltage | VIH | 2.1 | V | SCLK, SDATA; 3.0 V ≤ VDD ≤ 3.6 V | 4 | ||
| Logic Input Low Voltage | VIL | 0.8 | V | SCLK, SDATA; 3.0 V ≤ VDD ≤ 3.6 V | 4 | ||
| SMBus Output Low Sink Current | 6 | mA | SDATA Forced to 0.6 V | 4 | |||
| Logic Input Current | IIH, IIL | -1 | 1 | µA | 4 | ||
| SMBus Clock Frequency | 400 | kHz | 4 | ||||
| SMBus Timeout | 25 | 64 | ms | User Programmable | 4 | ||
| SCLK Falling Edge to SDATA Valid Time | 1 | µs | Master Clocking in Data | 4 | |||
| SMBus Clock Frequency | fSCLK | 400 | kHz | 3 | |||
| Clock low period | tLOW | 1.3 | µs | Clock low period, between 10% points. | 3 | ||
| Clock high period | tHIGH | 0.6 | µs | Clock high period, between 90% points. | 3 | ||
| Clock/data rise time | tR | 300 | ns | 3 | |||
| Clock/data fall time | tF | 300 | ns | 3 | |||
| Start condition setup time | tSU; STA | 600 | ns | 3 | |||
| Start condition hold time | tHD; STA | 600 | ns | Note 2: time from 10% of SDATA to 90% of SCLK | 3 | ||
| Data setup time | tSU; DAT | 100 | ns | Note 3: time for 10% or 90% of SDATA to 10% of SCLK | 3 | ||
| Data hold time | tHD; DAT | 300 | ns | 3 | |||
| Stop condition setup time | tSU; STO | 600 | ns | Note 4: time for 90% of SCLK to 10% of SDATA | 3 | ||
| Bus free time between stop and start conditions | tBUF | 1.3 | µs | 3 | |||
| Positive Supply Voltage (VDD) to GND | VDD | -0.3 | 5.5 | V | 2 | ||
| D+ to GND | D+ | -0.3 | V | Upper limit printed as VDD + 0.3 V | 2 | ||
| D− to GND | D− | -0.3 | 0.6 | V | 2 | ||
| SCLK, SDATA, ALERT voltage | SCLK, SDATA, ALERT | -0.3 | 5.5 | V | 2 | ||
| THERM voltage | THERM | -0.3 | V | Upper limit printed as VDD + 0.3 V | 2 | ||
| Input Current, SDATA, THERM | -1 | 50 | mA | 2 | |||
| Input Current, D− | -1 | 1 | mA | 2 | |||
| Maximum Junction Temperature | TJ Max | 150 | °C | 2 | |||
| Storage Temperature Range | -65 | 150 | °C | 2 | |||
| Thermal resistance, junction-to-ambient, 8-lead MSOP | JA | 142 | °C/W | 8-lead MSOP package | 2 | ||
| Ambient Operating Temperature | TA | -40 | 120 | °C | Guaranteed to operate only as specified at ambient temperatures from −40°C to +120°C | 8 |
CAD (KiCad official)
- Symbol:
ADT7461ARMZ-R7 - Footprint:
Package_SO:MSOP-8_3x3mm_P0.65mm - 3D model: MSOP-8 (KiCad packages3D, STEP)
- 3D model files:
adt7461armz-r7-etched.step/adt7461armz-r7-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);adt7461armz-r7.step/adt7461armz-r7.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (20 pp, sha256
097c7d27f08df706, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).