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AT24C512C-XHM-B

Microchip Tech · Pre-ordered Chips · TSSOP-8

AT24C512C-XHM-B from Microchip Tech, in a TSSOP-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 Microchip recommends connecting it to a known state, with any pull-up resistor not exceeding 10 kΩ.
2 A1 input Device address input hard-wired to GND or VCC; if left floating it is internally pulled down to GND, and Microchip recommends connecting it to a known state, with any pull-up resistor not exceeding 10 kΩ.
3 A2 input Device address input hard-wired to GND or VCC; if left floating it is internally pulled down to GND, and Microchip recommends connecting it to a known state, with any pull-up resistor not exceeding 10 kΩ.
4 GND power_in Ground reference for the power supply, which should be connected to the system ground.
5 SDA bidirectional Open-drain bidirectional serial data pin that must be pulled high through an external pull-up resistor not exceeding 10 kΩ and may be wire-ORed with other open-drain devices on the bus.
6 SCL input Serial clock input: SDA data is latched on its rising edge and output data is clocked out on its falling edge, and it must be forced high when the bus is idle or pulled high with an external pull-up.
7 WP input Write-protect input: connecting it to GND allows normal write operations, while connecting it to VCC inhibits writes to the full protected array; if left floating it is internally pulled down to GND.
8 VCC power_in Device power supply pin; the M-voltage option operates from 1.7 V to 3.6 V, and operation at invalid VCC voltages may produce spurious results and should not be attempted.

Key specifications

Parameter Value
Manufacturer Microchip Tech
Package TSSOP-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
Temperature under bias -55 125 °C 9
Storage temperature -65 150 °C 9
VCC supply voltage (absolute maximum) VCC 6.25 V 9
Voltage on any pin with respect to ground -1 7 V 9
DC output current 5 mA 9
ESD protection 4 kV Printed as '> 4 kV' 9
Operating temperature (case), industrial range -40 85 °C Industrial Temperature Range 9
VCC power supply, low-voltage grade VCC 1.7 5.5 V Low-Voltage Grade 9
VCC power supply, standard-voltage grade VCC 2.5 5.5 V Standard-Voltage Grade 9
Supply voltage (low-voltage grade) VCC1 1.7 3.6 V 9
Supply voltage (standard-voltage grade) VCC2 2.5 5.5 V 9
Supply current, read ICC1 1 mA VCC = 3.6V, Read at 400 kHz 9
Supply current, write ICC1 3 mA VCC = 3.6V, Write at 400 kHz 9
Supply current, read ICC2 2 mA VCC = 5.0V, Read at 400 kHz 9
Standby current ISB1 1 μA VCC = 1.7V, VIN = VCC or GND 9
Standby current ISB1 3 μA VCC = 3.6V, VIN = VCC or GND 9
Standby current ISB2 2 μA VCC = 2.5V, VIN = VCC or VSS 9
Standby current ISB2 6 μA VCC = 5.5V, VIN = VCC or VSS 9
Input leakage current ILI 0.1 3 μA VIN = VCC or GND; VCC = 5.0V 9
Output leakage current ILO 0.05 3 μA VOUT = VCC or GND; VCC = 5.0V 10
Input low level VIL -0.6 V Note 2 10
Output low level VOL1 0.2 V VCC = 1.7V, IOL = 0.15 mA 10
Output low level VOL2 0.4 V VCC = 3.0V, IOL = 2.1 mA 10
Clock frequency, SCL (Fast Mode) fSCL 400 kHz Fast Mode, VCC = 1.7V to 2.5V 10
Clock frequency, SCL (Fast Mode Plus) fSCL 1000 kHz Fast Mode Plus, VCC = 2.5V to 5.5V 10
Clock pulse width low tLOW 1300 ns Fast Mode, VCC = 1.7V to 2.5V 10
Clock pulse width low tLOW 500 ns Fast Mode Plus, VCC = 2.5V to 5.5V 10
Clock pulse width high tHIGH 600 ns Fast Mode, VCC = 1.7V to 2.5V 10
Clock pulse width high tHIGH 400 ns Fast Mode Plus, VCC = 2.5V to 5.5V 10
Clock low to data out valid tAA 50 900 ns Fast Mode, VCC = 1.7V to 2.5V 10
Clock low to data out valid tAA 50 450 ns Fast Mode Plus, VCC = 2.5V to 5.5V 10
Bus free time between stop and start tBUF 1300 ns Fast Mode, VCC = 1.7V to 2.5V 10
Bus free time between stop and start tBUF 500 ns Fast Mode Plus, VCC = 2.5V to 5.5V 10
Start hold time tHD.STA 600 ns Fast Mode, VCC = 1.7V to 2.5V 10
Start hold time tHD.STA 250 ns Fast Mode Plus, VCC = 2.5V to 5.5V 10
Start set-up time tSU.STA 600 ns Fast Mode, VCC = 1.7V to 2.5V 10
Start set-up time tSU.STA 250 ns Fast Mode Plus, VCC = 2.5V to 5.5V 10
Data in hold time tHD.DAT 0 ns Fast Mode, VCC = 1.7V to 2.5V 10
Data in set-up time tSU.DAT 100 ns Fast Mode, VCC = 1.7V to 2.5V 10
Inputs rise time tR 300 ns Fast Mode, VCC = 1.7V to 2.5V 10
Inputs fall time tF 300 ns Fast Mode, VCC = 1.7V to 2.5V 10
Inputs fall time tF 100 ns Fast Mode Plus, VCC = 2.5V to 5.5V 10
Stop set-up time tSU.STO 600 ns Fast Mode, VCC = 1.7V to 2.5V 10
Stop set-up time tSU.STO 250 ns Fast Mode Plus, VCC = 2.5V to 5.5V 10
Data out hold time tDH 50 ns Fast Mode, VCC = 1.7V to 2.5V 10
Write cycle time tWR 5 ms Fast Mode, VCC = 1.7V to 2.5V 10
Time required after VCC is stable before the device can accept commands tPUP 100 μs 11
Power-on reset threshold voltage VPOR 1.5 V 11
Minimum time at VCC = 0V between power cycles tPOFF 500 ms 11
Input/output capacitance (SDA) CI/O 8 pF VI/O = 0V 12
Input capacitance (A0, A1, A2 and SCL) CIN 6 pF VIN = 0V 12
Write endurance 1e+06 Write Cycles TA = 25°C, VCC = 3.3V, Page Write mode 12
Data retention 100 Years TA = 55°C 12

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] © 2020 Microchip Technology Inc. 24

CAD (KiCad official)

  • Symbol: AT24C512C-XHM-B
  • Footprint: Package_SO:TSSOP-8_4.4x3mm_P0.65mm
  • 3D model: TSSOP-8 (KiCad packages3D, STEP)
  • 3D model files: at24c512c-xhm-b-etched.step / at24c512c-xhm-b-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); at24c512c-xhm-b.step / at24c512c-xhm-b.glb are the bare package body.

Provenance

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

  • Datasheet: Microchip Tech datasheet (42 pp, sha256 6c4b94e343e571b1, retrieved 2026-11-05, 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