component
AT24MAC402-XHM-B
Public Made by Adomby adom
Microchip Tech Pre-ordered Chips, TSSOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
| Name | Last updated |
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| at24mac402-xhm-b-etched.step | 12d ago |
| at24mac402-xhm-b-hero.glb | 12d ago |
| at24mac402-xhm-b-hero.overlay.json | 12d ago |
| at24mac402-xhm-b.glb | 12d ago |
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| at24mac402-xhm-b.lbr | 12d ago |
| at24mac402-xhm-b.step | 12d ago |
| package.json | 12d ago |
| page.json | 12d ago |
| README.md | 12d ago |
AT24MAC402-XHM-B
Microchip Tech · Pre-ordered Chips · TSSOP-8
AT24MAC402-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 (up to eight devices per bus); internally pulled down to GND if not driven, but should be tied to a known state. |
| 2 | A1 | input | Device address input hard-wired to GND or VCC (up to eight devices per bus); internally pulled down to GND if not driven, but should be tied to a known state. |
| 3 | A2 | input | Device address input hard-wired to GND or VCC (up to eight devices per bus); internally pulled down to GND if not driven, but should be tied to a known state. |
| 4 | GND | power_in | Ground reference for the power supply, to be connected to system ground. |
| 5 | SDA | bidirectional | Open-drain bidirectional serial data pin that needs an external pull-up resistor not exceeding 10 kΩ and may be wire-ORed with other open-drain devices. |
| 6 | SCL | input | Serial clock input that latches command and input data on the rising edge and clocks output data out on the falling edge; must be forced high or pulled high when the bus is idle. |
| 7 | WP | input | Write-protect input: at GND allows normal writes, at VCC inhibits all writes to the full array; internally pulled down to GND if left floating. |
| 8 | VCC | power_in | Device power supply pin, operating from 1.7V to 5.5V. |
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 | |||
| Supply voltage VCC | 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 | >4 kV | 9 | |||
| Operating temperature (case) | -40 | 85 | °C | Industrial Temperature Range | 9 | ||
| VCC power supply | VCC | 1.7 | 5.5 | V | Low-Voltage Grade | 9 | |
| Supply Voltage | VCC | 1.7 | 5.5 | V | 9 | ||
| Supply Current (read) | ICC1 | 0.4 | 1 | mA | VCC = 5.0V, Read at 400 kHz | 9 | |
| Supply Current (write) | ICC2 | 2 | 3 | mA | VCC = 5.0V, Write at 400 kHz | 9 | |
| Standby Current | ISB | 1 | μA | VCC = 1.7V, VIN = VCC or GND | 9 | ||
| Standby Current | ISB | 6 | μA | VCC = 5.5V, VIN = VCC or GND | 9 | ||
| Input Leakage Current | ILI | 0.1 | 3 | μA | VIN = VCC or GND | 9 | |
| Output Leakage Current | ILO | 0.05 | 3 | μA | VOUT = VCC or GND | 9 | |
| Input Low Level (min only; max is VCC x 0.3) | VIL | -0.6 | V | Note 2 | 9 | ||
| Output Low Level | VOL1 | 0.2 | V | VCC = 1.7V, IOL = 0.15 mA | 9 | ||
| Output Low Level | VOL2 | 0.4 | V | VCC = 3.0V, IOL = 2.1 mA | 9 | ||
| Clock Frequency, SCL | fSCL | 400 | kHz | Fast Mode, VCC = 1.7V to 2.5V | 10 | ||
| Clock Frequency, SCL | fSCL | 1000 | kHz | Fast Mode Plus, VCC = 2.5V to 5.5V | 10 | ||
| Clock Pulse Width Low | tLOW | 1200 | 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 | ||
| Input Filter Spike Suppression | tI | 100 | ns | Fast Mode, VCC = 1.7V to 2.5V | 10 | ||
| Input Filter Spike Suppression | tI | 50 | ns | Fast Mode Plus, VCC = 2.5V to 5.5V | 10 | ||
| Clock Low to Data Out Valid | tAA | 100 | 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 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 | 11 | ||
| Input Capacitance (A0, A1, A2 and SCL) | CIN | 6 | pF | VIN = 0V | 11 | ||
| Write Endurance | 1e+06 | Write Cycles | TA = 25°C, VCC = 3.3V, Page Write mode | 11 | |||
| Data Retention | 100 | Years | TA = 55°C | 11 |
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. | 29 |
CAD (KiCad official)
- Symbol:
AT24MAC402-XHM-B - Footprint:
Package_SO:TSSOP-8_3x3mm_P0.65mm - 3D model: TSSOP-8 (KiCad packages3D, STEP)
- 3D model files:
at24mac402-xhm-b-etched.step/at24mac402-xhm-b-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);at24mac402-xhm-b.step/at24mac402-xhm-b.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Microchip Tech datasheet (45 pp, sha256
07384d2ed03d89d2, retrieved 2026-10-23, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text), consensusclaude-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).