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Contents

README

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AT24CM01-SSHD-T

Microchip Tech · EEPROM · SOIC-8

AT24CM01-SSHD-T 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 NC unconnected No Connect; the pin function table assigns no electrical function to this pin.
2 A1 input Device address input that may be hardwired or left floating, and if floating it is internally pulled down to GND when board coupling to VCC is below 3pF (Atmel recommends connecting it to GND if coupling is above 3pF).
3 A2 input Device address input that may be hardwired or left floating, and if floating it is internally pulled down to GND when board coupling to VCC is below 3pF (Atmel recommends connecting it to GND if coupling is above 3pF).
4 GND power_in Ground reference for the device.
5 SDA bidirectional Bidirectional serial data pin, open-drain driven, that may be wire-ORed with other open-drain or open-collector devices and must be pulled high by an external device.
6 SCL input Serial clock input where data is clocked into the device on the positive edge and clocked out on the negative edge of SCL.
7 WP input Write Protect input; connecting it to GND allows normal write operations, connecting it to VCC inhibits all memory writes, and if left floating it is internally pulled down to GND when board coupling to VCC is below 3pF.
8 VCC power_in Power supply; for the 2.5V option (this SSHD-T variant) VCC is specified from 2.5V to 5.5V, and the 1.7V option is specified from 1.7V to 5.5V.

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
Operating Temperature -55 125 C 2
Storage Temperature -65 150 C 2
Voltage on any pin with respect to ground -1 7 V 2
Maximum Operating Voltage 6.25 V 2
DC Output Current 5 mA 2
Supply Voltage, 2.5V Option VCC2 2.5 5.5 V 4
Operating temperature range (industrial) TAI -40 85 C 4
Input/Output Capacitance (SDA) CI/O 8 pF VI/O = 0V 4
Input Capacitance (A2, A1, SCL) CIN 6 pF VIN = 0V 4
Supply Current Read ICC 2 mA VCC = 5.0V Read at 400kHz 4
Supply Current Write ICC 3 mA VCC = 5.0V Write at 400kHz 4
Standby Current ISB 2 μA VCC = 2.5V 4
Standby Current ISB 3 μA VCC = 3.6V, VIN = VCC or VSS 4
Standby Current ISB 6 μA VCC = 5.5V 4
Input Leakage Current ILI 0.1 3 μA VIN = VCC or VSS 4
Output Leakage Current ILO 0.05 3 μA VOUT = VCC or VSS 4
Input Low Level VIL -0.6 V 4
Output Low Level VOL2 0.4 V VCC = 3.0V IOL = 2.1mA 4
Clock Frequency, SCL fSCL 1000 kHz 5
Clock Pulse Width Low tLOW 400 ns 5
Clock Pulse Width High tHIGH 400 ns 5
Noise Suppression Time tI 50 ns 5
Clock Low to Data Out Valid tAA 50 550 ns 5
Time the bus must be free before a new transmission can start tBUF 500 ns 5
Start Condition Hold Time tHD.STA 250 ns 5
Start Condition Set-up Time tSU.STA 250 ns 5
Data In Hold Time tHD.DAT 0 ns 5
Data In Set-up Time tSU.DAT 100 ns 5
Inputs Rise Time tR 300 ns 5
Inputs Fall Time tF 100 ns 5
Stop Condition Set-up Time tSU.STO 250 ns 5
Data Out Hold Time tDH 50 ns 5
Write Cycle Time tWR 5 ms 5

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 U = Green, Matte Sn Lead Finish 13

CAD (KiCad official)

  • Symbol: AT24CM01-SSHD-T
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: at24cm01-sshd-t-etched.step / at24cm01-sshd-t-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); at24cm01-sshd-t.step / at24cm01-sshd-t.glb are the bare package body.

Provenance

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

  • Datasheet: Microchip Tech datasheet (21 pp, sha256 1d3635134c038877, retrieved 2026-10-19, 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