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AT24C64D-SSHM-B

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

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Contents

README

markdown

AT24C64D-SSHM-B

Microchip Tech · EEPROM · SOIC-8

AT24C64D-SSHM-B 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 A0 input Device address input hard wired to GND or VCC; if left floating it is internally pulled down to GND, and Atmel recommends a pull-up of 10k or less.
2 A1 input Device address input hard wired to GND or VCC; if left floating it is internally pulled down to GND, and Atmel recommends a pull-up of 10k or less.
3 A2 input Device address input hard wired to GND or VCC; if left floating it is internally pulled down to GND, and Atmel recommends a pull-up of 10k or less.
4 GND power_in Ground reference pin for the device.
5 SDA bidirectional Bidirectional serial data pin that is open-drain driven and may be wire-ORed with other open-drain or open-collector devices.
6 SCL input Serial clock input that positive-edge clocks data into the EEPROM and negative-edge clocks data out of it.
7 WP input Write Protect input: connected to GND allows normal write operations, while connected directly to VCC all write operations are inhibited.
8 VCC power_in Device power supply; the supply voltage range is specified as 1.7 V to 5.5 V.

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 VCC1 1.7 5.5 V TAI = -40°C to +85°C 4
Supply Current Read ICC1 0.4 1 mA VCC = 5.0V Read at 400kHz 4
Supply Current Write ICC2 2 3 mA VCC = 5.0V Write at 400kHz 4
Standby Current ISB1 1 μA VCC = 1.7V, VIN = VCC or VSS 4
Standby Current ISB1 6 μA VCC = 5.0V 4
Input Leakage Current ILI 0.1 3 μA VCC = 5.0V, VIN = VCC or VSS 4
Output Leakage Current ILO 0.05 3 μA VCC = 5.0V, VOUT = VCC or VSS 4
Input Low Level VIL -0.6 V 4
Output Low Level VOL1 0.2 V VCC = 1.7V, IOL = 0.15mA 4
Output Low Level VOL2 0.4 V VCC = 3.0V, IOL = 2.1mA 4
Input/Output Capacitance (SDA) CI/O 8 pF VI/O = 0V 4
Input Capacitance (A0, A1, A2, and SCL) CIN 6 pF VIN = 0V 4
Clock Frequency, SCL fSCL 400 kHz VCC = 1.7V 5
Clock Frequency, SCL fSCL 1000 kHz VCC = 2.5V, 5.0V 5
Clock Pulse Width Low tLOW 1300 ns VCC = 1.7V 5
Clock Pulse Width Low tLOW 400 ns VCC = 2.5V, 5.0V 5
Clock Pulse Width High tHIGH 600 ns VCC = 1.7V 5
Clock Pulse Width High tHIGH 400 ns VCC = 2.5V, 5.0V 5
Noise Suppression Time tI 100 ns VCC = 1.7V 5
Noise Suppression Time tI 50 ns VCC = 2.5V, 5.0V 5
Clock Low to Data Out Valid tAA 50 900 ns VCC = 1.7V 5
Clock Low to Data Out Valid tAA 50 550 ns VCC = 2.5V, 5.0V 5
Time the bus must be free before a new transmission can start tBUF 1300 ns VCC = 1.7V 5
Time the bus must be free before a new transmission can start tBUF 500 ns VCC = 2.5V, 5.0V 5
Start Hold Time tHD.STA 600 ns VCC = 1.7V 5
Start Hold Time tHD.STA 250 ns VCC = 2.5V, 5.0V 5
Start Set-up Time tSU.STA 600 ns VCC = 1.7V 5
Start Set-up Time tSU.STA 250 ns VCC = 2.5V, 5.0V 5
Data In Hold Time tHD.DAT 0 ns VCC = 1.7V 5
Data In Set-up Time tSU.DAT 100 ns VCC = 1.7V 5
Inputs Rise Time tR 300 ns VCC = 1.7V 5
Inputs Fall Time tF 300 ns VCC = 1.7V 5
Inputs Fall Time tF 100 ns VCC = 2.5V, 5.0V 5
Stop Set-up Time tSU.STO 600 ns VCC = 1.7V 5
Stop Set-up Time tSU.STO 250 ns VCC = 2.5V, 5.0V 5
Data Out Hold Time tDH 50 ns VCC = 1.7V 5
Write Cycle Time tWR 5 ms 5
Endurance 1e+06 Write Cycles 25°C, Page Mode, 3.3V 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: AT24C64D-SSHM-B
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: at24c64d-sshm-b-etched.step / at24c64d-sshm-b-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); at24c64d-sshm-b.step / at24c64d-sshm-b.glb are the bare package body.

Provenance

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

  • Datasheet: Microchip Tech datasheet (25 pp, sha256 860e0063403ba7f0, retrieved 2026-10-27, 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