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Contents

README

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AT24C08D-STUM-T

Microchip Tech · EEPROM · SOT-23-5

AT24C08D-STUM-T from Microchip Tech, in a SOT-23-5. 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 SCL input Serial clock input that clocks data to and from the device; commands and input data are latched on the rising edge of SCL and output data is clocked out on the falling edge, and it must be forced high when the bus is idle or pulled high with an external pull-up resistor.
2 GND power_in Ground reference for the power supply, to be connected to system ground.
3 SDA bidirectional Open-drain bidirectional serial data pin that must be pulled high with an external pull-up resistor not exceeding 10 kΩ and may be wire-ORed with other open-drain or open-collector devices on the bus.
4 VCC power_in Device power supply pin for a source voltage of 1.7V to 3.6V; operation at invalid VCC voltages may produce spurious results.
5 WP input Write-protect input that allows normal writes when connected to GND and inhibits all writes to the full protected array when connected to VCC; it is internally pulled down to GND if left floating, but Microchip recommends driving it to a known state with a pull-up of 10 kΩ or less.

Key specifications

Parameter Value
Manufacturer Microchip Tech
Package SOT-23-5
Category Memory
Pins 5

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Temperature under bias -55 125 °C 9
Storage temperature -65 150 °C 9
Supply voltage VCC 4.1 V 9
Voltage on any pin with respect to ground -0.6 4.1 V 9
DC output current 5 mA 9
ESD protection 4 kV >4 kV 9
Operating temperature (case), industrial -40 85 °C Industrial Temperature Range 9
VCC power supply, low voltage grade VCC 1.7 3.6 V 9
Supply voltage VCC 1.7 3.6 V 9
Supply current (read) ICC1 0.08 0.3 mA VCC = 1.8V, Read at 400 kHz 9
Supply current (read) ICC1 0.15 0.5 mA VCC = 3.6V, Read at 1 MHz 9
Supply current (write) ICC2 0.2 1 mA VCC = 3.6V, Write at 1 MHz 9
Standby current ISB 0.08 0.4 μA VCC = 1.8V, VIN = VCC or GND 9
Standby current ISB 0.1 0.8 μA VCC = 3.6V, VIN = VCC or GND 9
Input leakage current ILI 0.1 3 μA VIN = VCC or GND 10
Output leakage current ILO 0.05 3 μA VOUT = VCC or GND 10
Input low level (max is VCC x 0.3) VIL -0.6 V Note 2; max printed as VCC x 0.3 10
Output low level VOL1 0.2 V VCC = 1.8V, IOL = 0.15 mA 10
Output low level VOL2 0.4 V VCC = 3.0V, IOL = 2.1 mA 10
Clock frequency, SCL (Standard mode) fSCL 100 kHz VCC = 1.7V to 3.6V 10
Clock frequency, SCL (Fast mode) fSCL 400 kHz VCC = 1.7V to 3.6V 10
Clock frequency, SCL (Fast mode Plus) fSCL 1000 kHz VCC = 2.5V to 3.6V 10
Clock pulse width low (Standard mode) tLOW 4700 ns VCC = 1.7V to 3.6V 10
Clock pulse width low (Fast mode) tLOW 1300 ns VCC = 1.7V to 3.6V 10
Clock pulse width low (Fast mode Plus) tLOW 500 ns VCC = 2.5V to 3.6V 10
Clock pulse width high (Standard mode) tHIGH 4000 ns VCC = 1.7V to 3.6V 10
Clock pulse width high (Fast mode) tHIGH 600 ns VCC = 1.7V to 3.6V 10
Clock pulse width high (Fast mode Plus) tHIGH 400 ns VCC = 2.5V to 3.6V 10
Clock low to data out valid (Standard mode) tAA 4500 ns VCC = 1.7V to 3.6V 10
Clock low to data out valid (Fast mode) tAA 900 ns VCC = 1.7V to 3.6V 10
Clock low to data out valid (Fast mode Plus) tAA 450 ns VCC = 2.5V to 3.6V 10
Start hold time (Standard mode) tHD.STA 4000 ns VCC = 1.7V to 3.6V 11
Start hold time (Fast mode) tHD.STA 600 ns VCC = 1.7V to 3.6V 11
Start hold time (Fast mode Plus) tHD.STA 250 ns VCC = 2.5V to 3.6V 11
Start set-up time (Standard mode) tSU.STA 4700 ns VCC = 1.7V to 3.6V 11
Start set-up time (Fast mode) tSU.STA 600 ns VCC = 1.7V to 3.6V 11
Start set-up time (Fast mode Plus) tSU.STA 250 ns VCC = 2.5V to 3.6V 11
Data in set-up time (Standard mode) tSU.DAT 200 ns VCC = 1.7V to 3.6V 11
Data in set-up time (Fast mode) tSU.DAT 100 ns VCC = 1.7V to 3.6V 11
Data in set-up time (Fast mode Plus) tSU.DAT 100 ns VCC = 2.5V to 3.6V 11
Write cycle time tWR 5 ms 11
Time required after VCC is stable before device accepts commands tPUP 100 µs 12
Power-on reset threshold voltage VPOR 1.5 V 12
Minimum time at VCC = 0V between power cycles tPOFF 1 ms 12
Input/output capacitance (SDA) CI/O 8 pF VI/O = 0V 13
Input capacitance (A2, SCL) CIN 6 pF VIN = 0V 13
Write endurance 1e+06 Write Cycles TA = 25°C, VCC (min.) < VCC < VCC (max.), Byte or Page Write mode 13
Data retention 100 Years TA = 55°C 13

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, 3.90 mm (.150 In.) Body [SOIC] A A2 29

CAD (KiCad official)

  • Symbol: AT24C08D-STUM-T
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: at24c08d-stum-t-etched.step / at24c08d-stum-t-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); at24c08d-stum-t.step / at24c08d-stum-t.glb are the bare package body.

Provenance

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

  • Datasheet: Microchip Tech datasheet (45 pp, sha256 9f488f70d95d9e19, retrieved 2026-10-24, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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