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AT93C66-10SC-2.5 (SOIC-8) — Symbol, Footprint IPC-7351B & 3D STEP Model

AT93C66-10SC-2.5

MICROCHIPID: C19547782SOIC-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 · AT93C66-10SC-2.5 (SOIC-8)1DC2VCC3CS4SK8ORG7GND6DO5DIGrid 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)
1DCI/OMultiplexed I/O & Peripheral Pin DC (General)
2VCCPowerPower Supply Input (VCC — 4.5V to 5.5V)
3CSI/OMultiplexed I/O & Peripheral Pin CS (General)
4SKI/OMultiplexed I/O & Peripheral Pin SK (General)
5DII/OMultiplexed I/O & Peripheral Pin DI (General)
6DOI/OMultiplexed I/O & Peripheral Pin DO (General)
7GNDGNDGround Reference Pin (GND)
8ORGI/OMultiplexed I/O & Peripheral Pin ORG (General)
PIN 1 DC
I/O
Multiplexed I/O & Peripheral Pin DC (General)
Design note: Signal terminal DC (I/O, 4.5V to 5.5V domain). Multiplexed alternate functions: DC. Supported peripheral buses: General.
IPC-7351B Solder Density & Span C/G/Z Tuner

Live Embedded Datasheet PDF & Technical Drawing Gallery (6 Standard Drawings + 9 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: AT93C66-10SC-2.5 (MICROCHIP · SOIC-8)
Scroll, search text (Ctrl+F), or expand directly inside the embedded PDF reader below
1. Realistic 3D PackageREPRESENTATIVE
AT93C66-10SC-2.5 (SOIC-8) - 1. Realistic 3D Package
Detailed solid 3D bodyExpand ›
2. Standard Pinout (Top View)CLEANROOM PINOUT
AT93C66-10SC-2.5 (SOIC-8) - 2. Standard Pinout (Top View)
True package pinout (8 pins)Expand ›
3. Original Datasheet PinoutPDF PINOUT
AT93C66-10SC-2.5 (SOIC-8) - 3. Original Datasheet Pinout
Uncropped datasheet pin diagramExpand ›
4. Package Dimensions (D×E×A)PACKAGE DIMENSIONS
AT93C66-10SC-2.5 (SOIC-8) - 4. Package Dimensions (D×E×A)
SOIC-8 · 3.90×4.90mm · Pitch 1.27mmExpand ›
5. Recommended Land PatternLAND PATTERN
AT93C66-10SC-2.5 (SOIC-8) - 5. Recommended Land Pattern
IPC-7351B Footprint (8 Pads)Expand ›
6. Application SchematicSCHEMATIC
AT93C66-10SC-2.5 (SOIC-8) - 6. Application Schematic
Typical Application SchematicExpand ›
Original Datasheet Pinouts & Technical Drawings (9 figures · Page 1/1)
Showing 1–9 of 9 uncropped original figures for AT93C46R / AT93C66
P1 · p01_fig02EXACT PACKAGE
AT93C66-10SC-2.5 (SOIC-8) — 8-lead TSSOP
8-lead TSSOP
P1 · p01_fig03EXACT PACKAGE
AT93C66-10SC-2.5 (SOIC-8) — GND Ground
GND Ground
P1 · p01_fig04EXACT PACKAGE
AT93C66-10SC-2.5 (SOIC-8) — DI DO
DI DO
P1 · p01_fig01652×503px
AT93C66-10SC-2.5 (SOIC-8) — 1K (128 x 8 or 64 x 16)
1K (128 x 8 or 64 x 16)
P1 · p01_fig03P1
AT93C66-10SC-2.5 (SOIC-8) — Datasheet Page 1 (p01_fig03)
Datasheet Page 1 (p01_fig03)
P2 · p02_fig011030×667px
AT93C66-10SC-2.5 (SOIC-8) — Block Diagram | Absolute Maximum Ratings* | Storage Temperature..................................... -65°C to +150°C | Voltage on Any Pin with Respect to Ground .....................................-1.0V to +7.0V | Maximum Operating Voltage
Block Diagram | Absolute Maximum Ratings* | Storage Temperature..................................... -65°C to +150°C | Voltage on Any Pin with Respect to Ground .....................................-1.0V to +7.0V | Maximum Operating Voltage
P2 · p02_fig021586×1152px
AT93C66-10SC-2.5 (SOIC-8) — DC Output Current........................................................ 5.0 mA
DC Output Current........................................................ 5.0 mA
P15 · p15_fig012039×2582px
AT93C66-10SC-2.5 (SOIC-8) — AT93C46/56/57/66
AT93C46/56/57/66
P15 · p15_fig01P15
AT93C66-10SC-2.5 (SOIC-8) — Datasheet Page 15 (p15_fig01)
Datasheet Page 15 (p15_fig01)

Technical Specifications & Part Details (AT93C66-10SC-2.5)

Summary of electrical parameters, mechanical dimensions, voltage range and peripheral interfaces from Datasheet (EN)
Standard Electronic & Interconnect Component
Detailed Overview:AT93C66-10SC-2.5 (SOIC-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 4.5V to 5.5V supply operation across -55°C to +125°C with integrated Standard I/O / Passive interfaces.
Operating Supply VoltageV_CC / V_DD
4.5V to 5.5V
Place 100nF + 10µF X7R decoupling capacitors < 2mm from supply pins
Ambient Operating TemperatureT_A
-55°C to +125°C
Industrial temperature grade; T_J(max) = +125°C
Clock / RF Operating Frequencyf_CLK / f_RF
2 MHz
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=0.15 mm)
Package family: SOIC (SOIC-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
Standard I/O / Passive
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 (SOIC-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
SOIC-8
Size power & signal trace widths for rated load current following IPC-2221 clearance rules.

Technical Frequently Asked Questions (FAQ) — AT93C66-10SC-2.5 (SOIC-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 AT93C66-10SC-2.5 (SOIC-8)?

Manufactured by MICROCHIP, the AT93C66-10SC-2.5 is housed in a SOIC-8 package with 8 pins and a 1.27 mm lead pitch, supporting a VCC supply range of 4.5V to 5.5V. Key pins include: 1 (DC: Multiplexed I/O & Peripheral Pin DC (General)), 2 (VCC: Power Supply Input (VCC — 4.5V to 5.5V)), 3 (CS: Multiplexed I/O & Peripheral Pin CS (General)), 4 (SK: Multiplexed I/O & Peripheral Pin SK (General)), 5 (DI: Multiplexed I/O & Peripheral Pin DI (General)), 6 (DO: Multiplexed I/O & Peripheral Pin DO (General)).

What are the IPC-7351B PCB Footprint dimensions for AT93C66-10SC-2.5?

Normalized from the official datasheet mechanical drawing per IPC-7351B (Density Level B Nominal), AT93C66-10SC-2.5 (SOIC-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 AT93C66-10SC-2.5?

You can download the verified open-hardware (CERN-OHL-P-2.0) CAD library bundle for AT93C66-10SC-2.5 (MICROCHIP, SOIC-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) & AT93C46R / AT93C66 Family VariantsExpand static table
Pin #Signal NameElectrical TypeFunctional Description & Design Notes
1DCDigital_IOSignal terminal DC (I/O, 4.5V to 5.5V domain). Multiplexed alternate functions: DC. Supported peripheral buses: General.
2VCCPower_InPrimary positive power supply input (VCC) operating in the 4.5V to 5.5V domain (Max rating: 5.5V).
3CSDigital_IOSignal terminal CS (I/O, 4.5V to 5.5V domain). Multiplexed alternate functions: CS. Supported peripheral buses: General.
4SKDigital_IOSignal terminal SK (I/O, 4.5V to 5.5V domain). Multiplexed alternate functions: SK. Supported peripheral buses: General.
5DIDigital_IOSignal terminal DI (I/O, 4.5V to 5.5V domain). Multiplexed alternate functions: DI. Supported peripheral buses: General.
6DODigital_IOSignal terminal DO (I/O, 4.5V to 5.5V domain). Multiplexed alternate functions: DO. Supported peripheral buses: General.
7GNDGND0V electrical ground return terminal (GND) for internal core logic, I/O drivers, and analog sub-blocks.
8ORGDigital_IOSignal terminal ORG (I/O, 4.5V to 5.5V domain). Multiplexed alternate functions: ORG. Supported peripheral buses: General.
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