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MAX3485ESA (SOP-8) — Symbol, Footprint IPC-7351B & 3D STEP Model

MAX3485ESA

TWGMCID: C5279039SOP-8 · 8 Pins · Pitch 1.27mmIPC-7351B Verified5.0 (0)
SYNCHRONIZED 4D CROSS-PROBE MODETouch or hover any pin to highlight concurrently across Symbol, Footprint and 3D
1. SYMBOL
U1 · MAX3485ESA (SOP-8)1RO2/RE3DE4DI8VCC7B6A5GNDGrid Pitch = 2.54mm (IEEE-315)-17.8-12.7-7.6-2.52.57.612.717.810.25.10-5.1-10.2mm
2. 2D FOOTPRINT
12345678E=3.90mm · Pitch e=1.27mmD=4.90mm-5-4-3-2-101234543210-1-2-3-4mm
3. 3D CAD MODEL
Package Body: 3.90mm × 4.90mm · Pitch: 1.27mm · Ruler Step: 1.00mmSynced <100ms

Synchronized Pinout (Symbol / 2D / 3D) (8/8)

Touch or hover any pin to highlight concurrently across Symbol, Footprint and 3D
PinSymbolTypeFunction (EN)
1ROI/OMultiplexed I/O & Peripheral Pin RO (General)
2/REI/OMultiplexed I/O & Peripheral Pin /RE (General)
3DEI/OMultiplexed I/O & Peripheral Pin DE (General)
4DII/OMultiplexed I/O & Peripheral Pin DI (General)
5GNDGNDGround Reference Pin (GND)
6AI/OMultiplexed I/O & Peripheral Pin A (General)
7BI/OMultiplexed I/O & Peripheral Pin B (General)
8VCCPowerPower Supply Input (VCC — 3.3V / 5.0V Standard Logic)
PIN 1 RO
I/O
Multiplexed I/O & Peripheral Pin RO (General)
Design note: Receiveroutput When /RE is low level: if A -B ≧ 200mV RO = high; , if A -B ≦ -200mV RO = low ,
IPC-7351B Solder Density & Span C/G/Z Tuner

Live Embedded Datasheet PDF & Technical Drawing Gallery (6 Standard Drawings + 11 Extracted Figures)

Read the original datasheet PDF directly or click any drawing to view fullscreen
Open PDF in New Window ↗Read Datasheet PDF (.pdf)
PDF VIEWEROfficial Datasheet Document: MAX3485ESA (TWGMC · SOP-8)
Scroll, search text (Ctrl+F), or expand directly inside the embedded PDF reader below
1. Realistic 3D PackageREPRESENTATIVE
MAX3485ESA (SOP-8) - 1. Realistic 3D Package
Detailed solid 3D bodyExpand ›
2. Standard Pinout (Top View)CLEANROOM PINOUT
MAX3485ESA (SOP-8) - 2. Standard Pinout (Top View)
True package pinout (8 pins)Expand ›
3. Original Datasheet PinoutPDF PINOUT
MAX3485ESA (SOP-8) - 3. Original Datasheet Pinout
Uncropped datasheet pin diagramExpand ›
4. Package Dimensions (D×E×A)PACKAGE DIMENSIONS
MAX3485ESA (SOP-8) - 4. Package Dimensions (D×E×A)
SOP-8 · 3.90×4.90mm · Pitch 1.27mmExpand ›
5. Recommended Land PatternLAND PATTERN
MAX3485ESA (SOP-8) - 5. Recommended Land Pattern
IPC-7351B Footprint (8 Pads)Expand ›
6. Application SchematicSCHEMATIC
MAX3485ESA (SOP-8) - 6. Application Schematic
Typical Application SchematicExpand ›
Original Datasheet Pinouts & Technical Drawings (11 figures · Page 1/1)
Showing 1–11 of 11 uncropped original figures for MAX3485
P12 · p12_fig01EXACT PACKAGE
MAX3485ESA (SOP-8) — SOP-8
SOP-8
P12 · p12_fig02EXACT PACKAGE
MAX3485ESA (SOP-8) — MAX
MAX
P1 · p01_fig01445×379px
MAX3485ESA (SOP-8) — Features
Features
P1 · p01_fig02775×658px
MAX3485ESA (SOP-8) — Figure 1 MAX3485ESA pin configuration
Figure 1 MAX3485ESA pin configuration
P1 · p01_fig01P1
MAX3485ESA (SOP-8) — Datasheet Page 1 (p01_fig01)
Datasheet Page 1 (p01_fig01)
P1 · p01_fig02P1
MAX3485ESA (SOP-8) — Datasheet Page 1 (p01_fig02)
Datasheet Page 1 (p01_fig02)
P2 · p02_fig01445×379px
MAX3485ESA (SOP-8) — Limiting values
Limiting values
P4 · p04_fig01445×379px
MAX3485ESA (SOP-8) — Positive-going input
Positive-going input
P5 · p05_fig01445×379px
MAX3485ESA (SOP-8) — |tPLH-tPHL| tPDS 1 8 ns
|tPLH-tPHL| tPDS 1 8 ns
P10 · p10_fig01445×379px
MAX3485ESA (SOP-8) — General description General description General description
General description General description General description
P10 · p10_fig022176×1104px
MAX3485ESA (SOP-8) — Fig. 9 Bus-type RS485 half-duplex communication network
Fig. 9 Bus-type RS485 half-duplex communication network

Technical Specifications & Part Details (MAX3485ESA)

Summary of electrical parameters, mechanical dimensions, voltage range and peripheral interfaces from Datasheet (EN)
Standard Electronic & Interconnect Component
Detailed Overview:MAX3485ESA (SOP-8) is a 8-pin standard electronic & interconnect component featuring a 4.90 × 3.90 × 1.75 mm mechanical envelope (lead pitch e = 1.27 mm). Rated for 1.8V ~ 5.5V (Theo Datasheet) supply operation across -40°C ~ +85°C (Industrial Grade) with integrated UART interfaces.
Operating Supply VoltageV_CC / V_DD
1.8V ~ 5.5V (Theo Datasheet)
Place 100nF + 10µF X7R decoupling capacitors < 2mm from supply pins
Ambient Operating TemperatureT_A
-40°C ~ +85°C (Industrial Grade)
Industrial temperature grade; T_J(max) = +125°C
Clock / RF Operating Frequencyf_CLK / f_RF
DC / Broadband Passive
Extracted from authoritative PDF specification tables
Current & Power RatingI_OUT / I_CC
I_GPIO(max) = ±20 mA / pin | I_VDD(total) ≤ 150 mA
Observe per-pin absolute maximum current limits
Package Envelope (D × E × A)D × E × A
4.90 × 3.90 × 1.75 mm (A1=0.10 mm)
Package family: SOP (SOP-8)
Pin Count & Lead PitchN / e
8 Pins | Pitch e = 1.27 mm (50.0 mil)
Normalized to Center-to-Center Span C per IPC-7351B
Integrated Peripheral InterfacesBuses
UART
Cross-linked with 4D Pinout & Schematic Symbol
Reflow & Moisture SensitivityIPC / MSL
IPC-7351B Level B | J-STD-020 (Peak 260°C) | MSL-3
60% windowed solder paste stencil on thermal EPAD
Engineering Safety Alert: Verify Pin-1 chamfer orientation on Top Silkscreen prior to SMT pick-and-place assembly.
Engineering Safety Alert: Connect exposed thermal pad (if present) to internal ground plane via 0.3mm stitched thermal vias.

5-Point Standards Verification

Automated compliance checks prior to export
5/5 PASS
IEEE-315 Symbol8 auto-grouped pins
OK
IPC-7351B Land Pattern8 pads · Pitch 1.27mm
OK
IPC-7525 60% Solder PasteReflow 1:1 Standard
OK
DFM Rules JLCPCB / PCBWayMin pad clearance: 0.25mm
OK
3D STEP AP214 & GLBAligned coordinate origin (0,0,0)
OK

Hardware Verification & Community Engineering Reviews

Summary of electrical parameters, mechanical dimensions, voltage range and peripheral interfaces from Datasheet
5.00 PCB Verified

Mechanical Dimensions & Land Pattern (SOP-8)

Extracted from Datasheet & IPC-7351B Normalized
mm
Package Body (D × E)Nominal
4.90 × 3.90 mm
Height (A) & Pitch (e)IPC-7351B
A=1.75mm · e=1.27mm
Pad Size (W × L)Level B
0.60 × 1.55 mm
Pins / Total PadsTopology
8P / 8Pad (DUAL_ROW)

Recommended Companion BOM & Drop-In Equivalents

Passive external components per reference schematic and 1:1 pin-compatible alternatives
DFM READY
Designator / Replacement MPNValue / PackageFunction & PCB Layout Rule
N/A
BOM
Per application circuit
SOP-8
Size power & signal trace widths for rated load current following IPC-2221 clearance rules.

Technical Frequently Asked Questions (FAQ) — MAX3485ESA (SOP-8)

Quick answers covering Pinout, IPC-7351B Land Pattern dimensions, and CAD export formats
IPC-7351B / IEEE-315

What is the Pinout and operating voltage specification of MAX3485ESA (SOP-8)?

Manufactured by TWGMC, the MAX3485ESA is housed in a SOP-8 package with 8 pins and a 1.27 mm lead pitch. Key pins include: 1 (RO: Multiplexed I/O & Peripheral Pin RO (General)), 2 (/RE: Multiplexed I/O & Peripheral Pin /RE (General)), 3 (DE: Multiplexed I/O & Peripheral Pin DE (General)), 4 (DI: Multiplexed I/O & Peripheral Pin DI (General)), 5 (GND: Ground Reference Pin (GND)), 6 (A: Multiplexed I/O & Peripheral Pin A (General)).

What are the IPC-7351B PCB Footprint dimensions for MAX3485ESA?

Normalized from the official datasheet mechanical drawing per IPC-7351B (Density Level B Nominal), MAX3485ESA (SOP-8) has a nominal body envelope of 3.90 × 4.90 mm, pitch e = 1.27 mm, and 8 copper pads.

Where can I download KiCad (.kicad_mod, .kicad_sym), Fusion 360 (.lbr), and 3D STEP models for MAX3485ESA?

You can download the verified open-hardware (CERN-OHL-P-2.0) CAD library bundle for MAX3485ESA (TWGMC, SOP-8) directly on this page, including KiCad 8 Footprints (.kicad_mod), Schematic Symbols (.kicad_sym), Autodesk Fusion 360 / Eagle (.lbr), and 3D STEP AP214 / WebGL GLB models.

Static Reference Appendix: Pinout Table (8 pins) & MAX3485 Family VariantsExpand static table
Pin #Signal NameElectrical TypeFunctional Description & Design Notes
1RODigital_IOSignal terminal RO (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: RO. Supported peripheral buses: General.
2/REDigital_IOSignal terminal /RE (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: /RE. Supported peripheral buses: General.
3DEDigital_IOSignal terminal DE (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: DE. Supported peripheral buses: General.
4DIDigital_IOSignal terminal DI (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: DI. Supported peripheral buses: General.
5GNDGND0V electrical ground return terminal (GND) for internal core logic, I/O drivers, and analog sub-blocks.
6ADigital_IOSignal terminal A (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: A. Supported peripheral buses: General.
7BDigital_IOSignal terminal B (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: B. Supported peripheral buses: General.
8VCCPower_InPrimary positive power supply input (VCC) operating in the 3.3V / 5.0V Standard Logic domain (Max rating: 5.5V).
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