component

25AA040-I

Public Made by Adom

by adom

Microchip Tech Pre-ordered Chips, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentinterface ics25aa040-ifactory-2.0.0extractor-text

Verified 25AA040-I

by Ray · last 30 Oct 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

30 Oct 2026RayPublished by the parts factory: tier mfr, 8 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: 25AA040-I · SOIC-8 · 8 pins
  • ✓copper: 8 copper pads, none touching another net
  • ✓datasheet: all 8 pin names found in the 22-page datasheet
  • •distributor (warn): no ['digikey', 'mouser'] number
  • ✓family: SOIC-8_3.9x4.9mm_P1.27mm
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-2kbxpflb/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • ✓package_fit: height and body within the datasheet's package drawing (datasheet p.14)
  • ✓pads: 8 pins = 8 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 8 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ 25aa040-i.kicad_sym✓ 25aa040-i.kicad_mod✓ 25aa040-i.step
Spot something wrong? Report it as an issue Propose a fix Records are signed by members of adom.
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
25aa040-i / README.md
History Download
Ray Publish 0.1.0 1ec505a 10h ago

25AA040-I

Microchip Tech · Pre-ordered Chips · SOIC-8

25AA040-I from Microchip Tech, in a SOIC-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 CS input Chip Select: a low level selects the device and a high level deselects it and forces Standby mode, but a programming cycle already in progress completes regardless of CS.
2 SO output Serial Data Output: data shifts out after the falling edge of SCK during a read, and the pin goes to high-impedance when the device is deselected or HOLD is low.
3 WP input Write-Protect: when low, all writes to the array and STATUS register are disabled and the write enable latch is reset; when high, writes operate normally.
4 VSS power_in Ground reference for the device.
5 SI input Serial Data Input: receives instructions, addresses and data, latched on the rising edge of SCK.
6 SCK input Serial Clock Input: synchronizes communication; SI is latched on the rising edge and SO is updated after the falling edge.
7 HOLD input Hold Input: must be held high when unused; pulling it low while SCK is low pauses serial communication and tri-states SO, with SI, SCK and SO ignored until HOLD returns high while SCK is low.
8 VCC power_in Supply Voltage: the 25AA040 is specified for VCC of 1.8V to 5.5V (Device Selection Table, page 1).

Key specifications

Parameter Value
Manufacturer Microchip Tech
Package SOIC-8
Category Interface ICs
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
High-level input voltage VIH1 2 V VCC ≥ 2.7V (Note) 2
Low-level input voltage VIL1 -0.3 0.8 V VCC ≥ 2.7V (Note) 2
Low-level input voltage VIL2 -0.3 V VCC < 2.7V (Note) 2
Low-level output voltage VOL 0.4 V IOL = 2.1 mA 2
Low-level output voltage VOL 0.2 V IOL = 1.0 mA, VCC < 2.5V 2
Input leakage current ILI -1 1 μA CS = VCC, VIN = VSS TO VCC 2
Output leakage current ILO -1 1 μA CS = VCC, VOUT = VSS TO VCC 2
Internal Capacitance (all inputs and outputs) CINT 7 pF TA = 25°C, CLK = 1.0 MHz, VCC = 5.0V (Note) 2
Read Operating Current ICC 1 mA VCC = 5.5V; FCLK = 3.0 MHz; SO = Open 2
Read Operating Current ICC 500 μA VCC = 2.5V; FCLK = 2.0 MHz; SO = Open 2
Write Operating Current ICC 5 mA VCC = 5.5V 2
Write Operating Current ICC 3 mA VCC = 2.5V 2
Standby Current ICCS 5 μA CS = VCC = 5.5V, Inputs tied to VCC or VSS 2
Standby Current ICCS 1 μA CS = VCC = 2.5V, Inputs tied to VCC or VSS 2
Supply voltage (absolute maximum) VCC 7 V 2
All inputs and outputs w.r.t. VSS (absolute maximum) -0.6 V 2
Storage temperature -65 150 °C 2
Ambient temperature under bias -65 125 °C 2
Supply voltage (industrial range) VCC 1.8 5.5 V Industrial (I): TA = -40°C to +85°C 2
Ambient temperature (industrial range) TA -40 85 °C Industrial (I) 2
Clock Frequency FCLK 3 MHz VCC = 4.5V to 5.5V 3
Clock Frequency FCLK 2 MHz VCC = 2.5V to 4.5V 3
Clock Frequency FCLK 1 MHz VCC = 1.8V to 2.5V 3
CS Setup Time TCSS 100 ns VCC = 4.5V to 5.5V 3
CS Setup Time TCSS 250 ns VCC = 2.5V to 4.5V 3
CS Setup Time TCSS 500 ns VCC = 1.8V to 2.5V 3
CS Hold Time TCSH 150 ns VCC = 4.5V to 5.5V 3
CS Hold Time TCSH 250 ns VCC = 2.5V to 4.5V 3
CS Hold Time TCSH 475 ns VCC = 1.8V to 2.5V 3
Data Setup Time TSU 30 ns VCC = 4.5V to 5.5V 3
Data Setup Time TSU 50 ns VCC = 2.5V to 4.5V 3
Data Hold Time THD 50 ns VCC = 4.5V to 5.5V 3
Data Hold Time THD 100 ns VCC = 2.5V to 4.5V 3
Clock High Time THI 150 ns VCC = 4.5V to 5.5V 3
Clock High Time THI 230 ns VCC = 2.5V to 4.5V 3
Clock High Time THI 475 ns VCC = 1.8V to 2.5V 3
Clock Low Time TLO 150 ns VCC = 4.5V to 5.5V 3
Clock Low Time TLO 230 ns VCC = 2.5V to 4.5V 3
Clock Low Time TLO 475 ns VCC = 1.8V to 2.5V 3
Output Valid from Clock Low TV 150 ns VCC = 4.5V to 5.5V 3
Output Valid from Clock Low TV 230 ns VCC = 2.5V to 4.5V 3
Output Valid from Clock Low TV 475 ns VCC = 1.8V to 2.5V 3
Output Disable Time TDIS 200 ns VCC = 4.5V to 5.5V (Note 1) 3
Output Disable Time TDIS 250 ns VCC = 2.5V to 4.5V (Note 1) 3
Output Disable Time TDIS 500 ns VCC = 1.8V to 2.5V (Note 1) 3
HOLD Setup Time THS 100 ns VCC = 4.5V to 5.5V 3
HOLD Setup Time THS 200 ns VCC = 1.8V to 2.5V 3
HOLD Hold Time THH 100 ns VCC = 4.5V to 5.5V 3
HOLD Hold Time THH 200 ns VCC = 1.8V to 2.5V 3
HOLD Low to Output High-Z THZ 100 ns VCC = 4.5V to 5.5V (Note 1) 3
HOLD Low to Output High-Z THZ 150 ns VCC = 2.5V to 4.5V (Note 1) 3
HOLD Low to Output High-Z THZ 200 ns VCC = 1.8V to 2.5V (Note 1) 3
HOLD High to Output Valid THV 100 ns VCC = 4.5V to 5.5V 3
HOLD High to Output Valid THV 150 ns VCC = 2.5V to 4.5V 3
HOLD High to Output Valid THV 200 ns VCC = 1.8V to 2.5V 3
Internal Write Cycle Time TWC 5 ms 3

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts tin 8-Lead Plastic Small Outline (SN), Narrow, 150 mil (SOIC) Foot Angle φ 048048 14

CAD (KiCad official)

  • Symbol: 25AA040-I
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: 25aa040-i-etched.step / 25aa040-i-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 25aa040-i.step / 25aa040-i.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Microchip Tech datasheet (22 pp, sha256 b0cec897ff792bf7, retrieved 2026-10-30, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-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).

Datasheet PDF