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Contents

README

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25LC080AT-I

Microchip Tech · EEPROM · SOIC-8

25LC080AT-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 input: a low level selects the device, and a high level deselects it and forces Standby mode while SO goes high-impedance.
2 SO output Serial Data Output: data shifts out after the falling edge of SCK, and the pin is tri-stated when the device is deselected or HOLD is pulled low.
3 WP input Write-Protect input: with WPEN set, a low level disables writes to the nonvolatile Status Register bits, and the pin has no effect when WPEN is low.
4 VSS power_in Ground reference for the device.
5 SI input Serial Data Input: instructions, addresses and data are latched on the rising edge of SCK, and transitions are ignored while HOLD pauses the device.
6 SCK input Serial Clock input: SI is latched on its rising edge and SO updates after its falling edge.
7 HOLD input Hold input: must be held high when unused; pulling it low while SCK is low pauses serial communication without resetting the sequence and tri-states SO.
8 VCC power_in Supply voltage: 2.5V to 5.5V for the 25LC080A per the device selection table.

Key specifications

Parameter Value
Manufacturer Microchip Tech
Package SOIC-8
Category Memory
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
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 TAMB = 25°C, CLK = 1.0 MHz, VCC = 5.0V (Note) 2
Read Operating Current ICC 6 mA VCC = 5.5V; FCLK = 10.0 MHz; SO = Open 2
Read Operating Current ICC 2.5 mA VCC = 2.5V; FCLK = 5.0 MHz; SO = Open 2
Write Operating Current ICC 3 mA VCC = 5.5V 2
Standby Current Iccs 1 μA CS = VCC = 2.5V, Inputs tied to VCC or VSS, TAMB = -40°C TO +85°C 2
Clock Frequency FCLK 10 MHz 4.5V ≤ VCC ≤ 5.5V 3
Clock Frequency FCLK 5 MHz 2.5V ≤ VCC < 4.5V 3
CS Setup Time TCSS 50 ns 4.5V ≤ VCC ≤ 5.5V 3
CS Setup Time TCSS 100 ns 2.5V ≤ VCC < 4.5V 3
CS Hold Time TCSH 100 ns 4.5V ≤ VCC ≤ 5.5V 3
CS Hold Time TCSH 200 ns 2.5V ≤ VCC < 4.5V 3
CS Disable Time TCSD 50 ns 3
Data Setup Time Tsu 10 ns 4.5V ≤ VCC ≤ 5.5V 3
Data Setup Time Tsu 20 ns 2.5V ≤ VCC < 4.5V 3
Data Hold Time THD 20 ns 4.5V ≤ VCC ≤ 5.5V 3
Data Hold Time THD 40 ns 2.5V ≤ VCC < 4.5V 3
CLK Rise Time TR 500 ns (Note 1) 3
CLK Fall Time TF 500 ns (Note 1) 3
Clock High Time THI 50 ns 4.5V ≤ VCC ≤ 5.5V 3
Clock High Time THI 100 ns 2.5V ≤ VCC < 4.5V 3
Clock Low Time TLO 50 ns 4.5V ≤ VCC ≤ 5.5V 3
Clock Low Time TLO 100 ns 2.5V ≤ VCC < 4.5V 3
Clock Delay Time TCLD 50 ns 3
Clock Enable Time TCLE 50 ns 3
Output Valid from Clock Low TV 50 ns 4.5V ≤ VCC ≤ 5.5V 3
Output Valid from Clock Low TV 100 ns 2.5V ≤ VCC < 4.5V 3
Output Hold Time THO 0 ns (Note 1) 3
Output Disable Time TDIS 40 ns 4.5V ≤ VCC ≤ 5.5V (Note 1) 3
Output Disable Time TDIS 80 ns 2.5V ≤ VCC < 4.5V (Note 1) 3
HOLD Setup Time THS 20 ns 4.5V ≤ VCC ≤ 5.5V 3
HOLD Setup Time THS 40 ns 2.5V ≤ VCC < 4.5V 3
HOLD Hold Time THH 20 ns 4.5V ≤ VCC ≤ 5.5V 4
HOLD Hold Time THH 40 ns 2.5V ≤ VCC < 4.5V 4
HOLD Low to Output High-Z THZ 30 ns 4.5V ≤ VCC ≤ 5.5V (Note 1) 4
HOLD Low to Output High-Z THZ 60 ns 2.5V ≤ VCC < 4.5V (Note 1) 4
HOLD High to Output Valid THV 30 ns 4.5V ≤ VCC ≤ 5.5V 4
HOLD High to Output Valid THV 60 ns 2.5V ≤ VCC < 4.5V 4
Internal Write Cycle Time TWC 5 ms (Note 3) 4
Endurance 1e+06 E/W cycles 4
Supply voltage VCC (25LC080A) VCC 2.5 5.5 V 25LC080A VCC range 1
Ambient temperature, Industrial (I) TAMB -40 85 °C Industrial (I) grade 1
Supply voltage VCC VCC 7 V 2
Input/output voltage w.r.t. VSS -0.6 V w.r.t. VSS; upper limit printed as VCC +1.0V 2
Storage temperature -65 150 °C 2
Ambient temperature under bias -65 125 °C 2
ESD protection on all pins 4 kV 2

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 or OA), Narrow, 3.90 mm Body [SOIC] Notes: 17

CAD (KiCad official)

  • Symbol: 25LC080AT-I
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: 25lc080at-i-etched.step / 25lc080at-i-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 25lc080at-i.step / 25lc080at-i.glb are the bare package body.

Provenance

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

  • Datasheet: Microchip Tech datasheet (26 pp, sha256 31b8a647cd7c4b8e, retrieved 2026-10-18, tier: lcsc)
  • 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