MCP6542 Part Review

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I’ll inspect the part metadata, find and set the official datasheet URL if missing, then compare symbol/footprint/pin details against the datasheet and report any mismatches.
Created a project doc

MCP6542-E/SN Part Review

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Date: 2026-07-22 | Field | Current project value | Datasheet / official source check | Assessment |

flux

Completed the MCP6542-E/SN review and saved the detailed findings in MCP6542-E/SN Part Review.
Open items:
  • Datasheet URL was already populated, so I did not change it; the official Microchip PDF URL is noted in the report.
  • Pin names/numbers match the datasheet, but pin descriptions are missing and all pin types are Unspecified.
  • Footprint matches the SN 8-SOIC package, with a minor pad-size variance vs Microchip’s recommended land pattern.
Suggested next steps:
  1. Add pin descriptions and correct pin electrical types.
  2. Optionally switch the Datasheet URL to the official Microchip direct PDF.
  3. Optionally tune the SOIC pad size to Microchip’s exact recommended land pattern.
Fix metadata issues
Update pin annotations
Use official datasheet
Tune SOIC pads
Run final review

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Ask about this doc
MCP6542-E/SN Part Review
Date: 2026-07-22
Reviewed Part Information

Table

FieldCurrent project valueDatasheet / official source checkAssessment
Project / part nameMCP6542-E_SNMPN family is MCP6542Acceptable naming convention for /SN package variant
Manufacturer Part NumberMCP6542-E/SNDatasheet ordering: MCP6542-E/SN = extended temperature, 8-lead SOICMatch
ManufacturerMicrochipOfficial Microchip datasheet/product pageMatch
DescriptionComparator General Purpose CMOS, Push-Pull, Rail-to-Rail, TTL 8-SOICMCP6542 is a dual push-pull output sub-microamp comparator with CMOS/TTL-compatible output and rail-to-rail input/output behaviorGenerally correct; could be more complete by saying “dual” and “sub-microamp/internal hysteresis”
Package / case8-SOICSN = Plastic SOIC, 150 mil body, 8-leadMatch
Pin / pad count8MCP6542 PDIP/SOIC/MSOP pinout has 8 pinsMatch
Datasheet URLSet to uploaded storage PDF: https://storage.googleapis.com/graviton-electric-symbols/document_assets/user-uploaded/64ebdf0899ae93b9f7946e30a1050bfd9901a8c16678acb19ce61aed8fcd33d0.pdfOfficial Microchip datasheet found: https://ww1.microchip.com/downloads/aemDocuments/documents/MSLD/ProductDocuments/DataSheets/MCP6541-Output-Sub-Microamp-Comparators-DS20001696.pdfExisting URL is present, so I did not update it under the user instruction. If strict official linking is desired, replace with the Microchip URL.
Datasheet Sources Used
  • Existing project Datasheet URL: uploaded PDF copy of the Microchip datasheet.
  • Official Microchip direct PDF found via web search: MCP6541/1R/1U/2/3/4 Push-Pull Output Sub-Microamp Comparators Data Sheet, DS20001696.
  • Official product page found: https://www.microchip.com/en-us/product/MCP6542.
Key Datasheet Specifications

Table

ParameterMCP6542-E/SN value
FunctionDual comparator
Output typePush-pull, CMOS/TTL-compatible
Supply voltage1.6 V to 5.5 V
Input voltage rangeVSS − 0.3 V to VDD + 0.3 V
Quiescent current0.6 µA typical per comparator, 1.0 µA max per comparator
Internal hysteresis3.3 mV typical, 1.5 mV min, 6.5 mV max
Propagation delay4 µs typical, 8 µs max at 100 mV overdrive
Output swing specVOH ≥ VDD − 0.2 V at −2 mA, VDD = 5 V; VOL ≤ VSS + 0.2 V at +2 mA, VDD = 5 V
Input offset voltage±1.5 mV typical, ±7.0 mV max
Input bias current1 pA typical; E-temp at +125°C: 1200 pA typical, 5000 pA max
Max toggle frequency160 kHz typ at VDD = 1.6 V; 120 kHz typ at VDD = 5.5 V
Temperature gradeE = −40°C to +125°C
Absolute max supplyVDD − VSS = 7.0 V
ESD4 kV HBM, 400 V MM
Pin / Symbol Cross-Check
Datasheet Table 3-1 MCP6542 pin function table:

Table

PinDatasheet symbolDatasheet descriptionCurrent terminal / symbolCurrent pin numberCurrent pin typeAssessment
1OUTADigital Output, comparator AOUTA1UnspecifiedPin number/name match; type and description missing
2VINA−Inverting Input, comparator AVINA-2UnspecifiedPin number/name match; type and description missing
3VINA+Non-inverting Input, comparator AVINA+3UnspecifiedPin number/name match; type and description missing
4VSSNegative Power SupplyVSS4UnspecifiedPin number/name match; type and description missing
5VINB+Non-inverting Input, comparator BVINB+5UnspecifiedPin number/name match; type and description missing
6VINB−Inverting Input, comparator BVINB-6UnspecifiedPin number/name match; type and description missing
7OUTBDigital Output, comparator BOUTB7UnspecifiedPin number/name match; type and description missing
8VDDPositive Power SupplyVDD8UnspecifiedPin number/name match; type and description missing
Symbol Findings
  • The symbol/terminal pin numbers and labels match the MCP6542 datasheet pinout.
  • No pin-number mismatches were found.
  • All terminals currently have Pin Type: Unspecified.
  • The current terminal properties do not include datasheet-derived Pin Description values.
  • The visual symbol does not need to mirror physical package order as long as terminal Pin Number values are correct; the reviewed mapping is correct.
Recommended pin types/descriptions to add if the part should be fully annotated:

Table

PinRecommended Pin TypeRecommended Pin Description
1OutputDigital Output, comparator A
2InputInverting Input, comparator A
3InputNon-inverting Input, comparator A
4Ground / Power InNegative Power Supply
5InputNon-inverting Input, comparator B
6InputInverting Input, comparator B
7OutputDigital Output, comparator B
8Power InPositive Power Supply
Footprint Cross-Check
Current footprint asset: SOIC127P600X175-8N.kicad_mod
Datasheet package: 8-Lead Plastic Small Outline (SN) — Narrow, 3.90 mm / .150 in body [SOIC].

Table

FeatureDatasheet / recommended land patternCurrent footprintAssessment
Pin count88 padsMatch
Lead/contact pitch1.27 mm BSC1.27 mm pad pitchMatch
Contact pad row spacing5.40 mmPad centers at ±2.70 mm → 5.40 mmMatch
Contact pad width0.60 mm recommended0.65 mmMinor variance: +0.05 mm
Contact pad length1.55 mm recommended1.50 mmMinor variance: −0.05 mm
Molded body width3.90 mm BSCFab outline width 3.90 mmMatch
Overall length4.90 mm BSCFab outline length 4.90 mmMatch
Overall width6.00 mm BSC packageFootprint row spacing/land pattern matches 5.40 mm contact spacingAcceptable for SN SOIC land pattern
Max package height1.75 mmFootprint name includes X175 and model is presentMatch by naming/model intent
Pin 1 markingDatasheet requires pin 1 visual index in marked areaFootprint has pin-1 chamfer/fab mark and silkscreen markerMatch
Footprint Finding
The package family, pad count, pitch, row spacing, body outline, and pin-1 indication match the Microchip SN 8-lead SOIC package. The only dimensional variance found is the pad copper size: current footprint uses approximately 0.65 mm × 1.50 mm pads, while Microchip’s recommended land pattern gives 0.60 mm × 1.55 mm. This is a small generic-SOIC land-pattern deviation, not a pinout/package mismatch.
Flagged Mismatches / Issues
  1. No pin mapping mismatches found. All 8 terminal names and pin numbers match the datasheet.
  2. Pin descriptions are missing. The terminals do not currently include Pin Description properties derived from the datasheet.
  3. Pin electrical types are incomplete. All terminals are set to Pin Type: Unspecified instead of Output/Input/Power/Ground.
  4. Footprint pad size differs slightly from Microchip recommended land pattern. Current pads are about 0.65 mm × 1.50 mm; datasheet recommends 0.60 mm × 1.55 mm.
  5. Datasheet URL is populated but not the official Microchip direct URL. Because the field was already set, I did not change it. The existing uploaded PDF appears to be the same datasheet family; the official direct PDF URL is listed above.
  6. Description is accurate but not complete. It correctly captures comparator, CMOS, push-pull, rail-to-rail, TTL/CMOS compatibility, and 8-SOIC; it omits that the part is dual, sub-microamp, and internally hysteretic.
  • Add datasheet-derived Pin Description values for all 8 pins.
  • Change terminal Pin Type values to Output/Input/Power/Ground as appropriate.
  • Optionally change the Datasheet URL from the uploaded storage URL to the official Microchip direct PDF URL.
  • Optionally adjust the SOIC land-pattern pad size to Microchip’s recommended 0.60 mm × 1.55 mm if exact manufacturer land-pattern compliance is required.
  • Optionally update the description to: Dual push-pull CMOS/TTL-compatible sub-microamp comparator, rail-to-rail input/output, internal hysteresis, 8-SOIC.

  • Reviewed Part Information

  • Datasheet Sources Used

  • Key Datasheet Specifications

  • Pin / Symbol Cross-Check

  • Symbol Findings

  • Footprint Cross-Check

  • Footprint Finding

  • Flagged Mismatches / Issues

  • Recommended Cleanup Actions

Documents

Assets

kicad_mod

MCP6542-E_SN

SOIC127P600X175-8N.kicad_modFootprint
MCP6542-E_SN

MCP6542-E_SN

MCP6542-E_SN.stp3D Model
MCP6542-ESN-thumb.png

MCP6542-ESN-thumb.png

MCP6542-ESN-thumbThumbnail
svg

MCP6542-E_SN

MCP6542-E_SN Symbol.svgDefault

MCP6542-E/SN

MCP6542-E/SN thumbnail
Comparator Standard (General Purpose) CMOS, Push-Pull, Rail-to-Rail, TTL 8-SOIC
Comparator for comparing two analog input voltages and providing a digital output signal. The MCP6542-E/SN is a dual, single-supply comparator operating from 1.6 V to 5.5 V, with 600 nA typical supply current per comparator, 4 µs typical response time, and rail-to-rail input operation, making it suitable for low-power voltage monitoring, threshold detection, and sensing applications.
#Comparator #DualComparator #LowPower #SingleSupply #RailToRailInput #VoltageMonitoring #ThresholdDetection #Microchip #MCP6542

Properties

MCP6542-E/SN

Microchip

Integrated Circuit

microchip.com/downloads/aemDocuments/documents/MSLD/ProductDocuments/DataSheets/MCP6541-Output-Sub-Microamp-Comparators-DS20001696.pdf

IC

8-SOIC

parametric-v1

creativecommons.org/licenses/by/4.0/

Pricing & Availability

DPN

Stock

Qty 1

4

0–1.1K

$0.5125–$0.6373

1

1.1K

$0.62

4

198–1.1K

$0.5971–$0.6373

Controls