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24LC32A

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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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24LC32A

Microchip Tech · EEPROM · SOIC-8

24LC32A 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 compared with the client address bits to select the device; it must be tied to VCC or VSS, or driven to logic 0 or 1 before normal operation when controlled by a microcontroller.
2 A1 input Chip address input compared with the client address bits to select the device; it must be tied to VCC or VSS, or driven to logic 0 or 1 before normal operation when controlled by a microcontroller, allowing up to eight devices on the same bus.
3 A2 input Chip address input compared with the client address bits to select the device; it must be tied to VCC or VSS, or driven to logic 0 or 1 before normal operation when controlled by a microcontroller.
4 VSS power_in Ground reference pin 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 and Stop conditions.
6 SCL input Serial clock input used to synchronize data transfer to and from the device.
7 WP input Write-protect input that must be connected to VSS (write operations enabled) or VCC (write operations inhibited while read operations are not affected).
8 VCC power_in Power supply pin; the 24LC32A operates from 2.5V to 5.5V per the device selection table.

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
Voltage on all inputs and outputs w.r.t. VSS (minimum) -0.3 V w.r.t. VSS; maximum printed as VCC + 1.0V 2
Storage temperature -65 150 °C 2
Ambient temperature with power applied -40 125 °C 2
Supply voltage (24LC32A operating range) VCC 2.5 5.5 V Device selection table, 24LC32A 1
Ambient temperature, Industrial (I) TA -40 85 °C Industrial (I) range 2
Ambient temperature, Extended (E) TA -40 125 °C Extended (E) range, VCC = 2.5V to 5.5V 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; 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 (I-Temp) ICCS 0.01 1 µA SDA = SCL = VCC; A0, A1, A2, WP = VSS, I-Temp 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 min to VIL max 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: 24LC32A
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: 24lc32a-etched.step / 24lc32a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 24lc32a.step / 24lc32a.glb are the bare package body.

Provenance

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

  • Datasheet: Microchip Tech datasheet (44 pp, sha256 41b778961af66dd5, retrieved 2026-10-21, tier: lcsc)
  • 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