component
24aa32at-i
Public Unreviewedby Ray
Microchip EEPROM, SOT-23-5. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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markdown24AA32AT-I
Microchip · EEPROM · SOT-23-5
24AA32AT-I from Microchip, in a SOT-23-5. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | A0 | input | Chip Address Input bit 0. Compared with the corresponding bit of the I2C slave address; the chip responds only when all three A[2:0] bits match. Must be tied to VCC or VSS (never left floating). |
| 2 | A1 | input | Chip Address Input bit 1. Compared with the corresponding bit of the I2C slave address; must be strapped to VCC or VSS. Combining A[2:0] allows up to eight 24AA32A devices to share one I2C bus (256 Kbit total). |
| 3 | A2 | input | Chip Address Input bit 2. Compared with the corresponding bit of the I2C slave address; must be tied to VCC or VSS. Forms the three MSBs of the 7-bit slave-address chip-select field along with A0/A1. |
| 4 | VSS | power_in | Ground reference for the device. All input thresholds and I2C signal levels are referenced to VSS. |
| 5 | SDA | bidirectional | I2C Serial Data (open-drain, bidirectional). Requires an external pull-up to VCC (typ. 10 kΩ for 100 kHz, 2 kΩ for 400 kHz). Schmitt-trigger input with slope-controlled output; must change only while SCL is low except for Start/Stop conditions. |
| 6 | SCL | input | I2C Serial Clock input driven by the bus master; synchronizes all data transfers to/from the device. Schmitt-trigger input; supports 100 kHz standard-mode and 400 kHz fast-mode (400 kHz requires VCC ≥ 2.5 V on 24AA32A). |
| 7 | WP | input | Write-Protect input. Tie to VSS to enable write operations; tie to VCC to inhibit all write operations (read operations are unaffected). Must not be left floating. |
| 8 | VCC | power_in | Positive supply input: +1.7 V to +5.5 V for 24AA32A (2.5 V to 5.5 V for 24LC32A). Typical operating current is 1 mA during writes and standby current is 1 µA. Bypass with a local decoupling capacitor to VSS. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip |
| Package | SOT-23-5 |
| Category | Memory |
| Pins | 8 |
Ordering variants
24AA32AT-ISN24AA32AT-IP24AA32AT-ISM24AA32AT-IST24AA32AT-IMS24AA32AT-IMC24AA32AT-IMNY24AA32AT-IOT24AA32AT-ICS16K
CAD (KiCad official)
- Symbol:
24AA32AT-I - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Microchip datasheet (None pp, sha256
d20f193bce83623c, retrieved 2026-08-17, tier: lcsc) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).