component
24LC32AT-E
Public Made by Adomby adom
Microchip Tech EEPROM, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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Contents
README
markdown24LC32AT-E
Microchip Tech · EEPROM · SOIC-8
24LC32AT-E 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 | Chip address input used for multiple-device operation; it must be tied to VCC or VSS, or driven to logic 0 or 1 before normal device operation when controlled by a microcontroller. |
| 2 | A1 | input | Chip address input used for multiple-device operation; it must be tied to VCC or VSS, or driven to logic 0 or 1 before normal device operation when controlled by a microcontroller. |
| 3 | A2 | input | Chip address input used for multiple-device operation; it must be tied to VCC or VSS, or driven to logic 0 or 1 before normal device operation when controlled by a microcontroller. |
| 4 | VSS | power_in | Ground reference for the device. |
| 5 | SDA | bidirectional | Open-drain serial address/data I/O that requires a pull-up resistor to VCC (typically 10 kΩ for 100 kHz, 2 kΩ for 400 kHz), and may change only while SCL is low except for Start/Stop conditions. |
| 6 | SCL | input | Serial clock input that synchronizes data transfer to and from the device. |
| 7 | WP | input | Write-protect input: tie to VSS to enable write operations, or to VCC to inhibit write operations while read operations are not affected. |
| 8 | VCC | power_in | Power supply; the 24LC32A operates from 2.5V 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 |
|---|---|---|---|---|---|---|---|
| All inputs and outputs w.r.t. VSS (absolute minimum) | -0.3 | V | 2 | ||||
| Storage temperature | -65 | 150 | °C | 2 | |||
| Ambient temperature with power applied | -40 | 125 | °C | 2 | |||
| ESD protection on all pins | 4 | kV | 2 | ||||
| Supply voltage (Extended E grade operating range) | VCC | 2.5 | 5.5 | V | Extended (E) grade | 2 | |
| Ambient temperature (Extended E grade operating range) | TA | -40 | 125 | °C | Extended (E) grade | 2 | |
| Low-Level Output Voltage | VOL | 0.4 | V | IOL = 3.0 mA, VCC = 4.5V | 2 | ||
| Input Leakage Current | ILI | -1 | 1 | µA | VIN = VSS or VCC | 2 | |
| Output Leakage Current | ILO | -1 | 1 | µA | VOUT = VSS or VCC | 2 | |
| Pin Capacitance (all inputs/outputs) | CIN, COUT | 10 | pF | VCC = 5.0V (Note 1), TA = +25°C, FCLK = 1 MHz | 2 | ||
| Operating Current, write | ICC write | 0.1 | 3 | mA | VCC = 5.5V, SCL = 400 kHz | 2 | |
| Operating Current, read | ICC read | 0.05 | 400 | µA | VCC = 5.5V, SCL = 400 kHz | 2 | |
| Standby Current (E-Temp) | ICCS | 5 | µA | SDA = SCL = VCC = 5.5V, A0, A1, A2, WP = VSS, E-Temp | 2 | ||
| Clock Frequency | FCLK | 400 | kHz | 2.5V ≤ VCC ≤ 5.5V | 3 | ||
| Clock High Time | THIGH | 600 | ns | 2.5V ≤ VCC ≤ 5.5V | 3 | ||
| Clock Low Time | TLOW | 1300 | ns | 2.5V ≤ VCC ≤ 5.5V | 3 | ||
| SDA and SCL Rise Time | TR | 300 | ns | 2.5V ≤ VCC ≤ 5.5V (Note 1) | 3 | ||
| SDA and SCL Fall Time | TF | 300 | ns | Note 1 | 3 | ||
| Start Condition Hold Time | THD:STA | 600 | ns | 2.5V ≤ VCC ≤ 5.5V | 3 | ||
| Start Condition Setup Time | TSU:STA | 600 | ns | 2.5V ≤ VCC ≤ 5.5V | 3 | ||
| Data Input Hold Time | THD:DAT | 0 | ns | Note 2 | 3 | ||
| Data Input Setup Time | TSU:DAT | 100 | ns | 2.5V ≤ VCC ≤ 5.5V | 3 | ||
| Stop Condition Setup Time | TSU:STO | 600 | ns | 2.5V ≤ VCC ≤ 5.5V | 3 | ||
| WP Setup Time | TSU:WP | 600 | ns | 2.5V ≤ VCC ≤ 5.5V | 3 | ||
| WP Hold Time | THD:WP | 1300 | ns | 2.5V ≤ VCC ≤ 5.5V | 3 | ||
| Output Valid from Clock | TAA | 900 | ns | 2.5V ≤ VCC ≤ 5.5V (Note 2) | 3 | ||
| Bus free time | TBUF | 1300 | ns | 2.5V ≤ VCC ≤ 5.5V | 3 | ||
| Output Fall Time from VIH Minimum to VIL Maximum | TOF | 250 | ns | 2.5V ≤ VCC ≤ 5.5V | 3 | ||
| Input Filter Spike Suppression (SDA and SCL pins) | TSP | 50 | ns | Note 1 and Note 3 | 3 | ||
| Write Cycle Time (byte or page) | TWC | 5 | ms | 3 | |||
| Endurance | 1e+06 | cycles | +25°C, 5.5V, Page Mode (Note 4) | 3 |
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 | 24 |
CAD (KiCad official)
- Symbol:
24LC32AT-E - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
24lc32at-e-etched.step/24lc32at-e-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);24lc32at-e.step/24lc32at-e.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Microchip Tech datasheet (44 pp, sha256
41b778961af66dd5, retrieved 2026-10-17, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-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).