

Overview
The 24LC256-I/P is an EEPROM made by Microchip Technology in a PDIP-8 package with 8 pins. -40℃~+85℃ 1,000,000 cycles 2.5V~5.5V 200 Years 256Kbit 400kHz 5ms Hardware write protection function、Noise suppression function I2C PDIP-8 EEPROM ROHS.
PCBKit's library has its KiCad symbol (Memory_EEPROM:24LC256, from KiCad's library) and its footprint (Package_DIP:DIP-8_W8.89mm_SMDSocket_LongPads, from KiCad's library), ready for a KiCad board. 47 are in stock at JLCPCB (part C411624). 84 open-source boards in 62 repositories on GitHub use it.
Symbol
Footprint
Parameters
12- Access Time
- 900ns
- Clock Frequency
- 400kHz
- Data Retention - TDR (Year)
- 200 Years
- Features
- Hardware write protection function
- Interface
- I2C
- Memory Size
- 256Kbit
- Operating Current
- 3mA
- Operating Temperature
- -40℃~+85℃
- Standby Current
- 5uA
- Voltage - Supply
- 2.5V~5.5V
- Write Cycle Endurance
- 1,000,000 cycles
- Write Cycle Time(Tw)
- 5ms
Order codes
1- 24LC256-I/PLCSC C411624
Pinout
8| Pin | Name | Type |
|---|---|---|
| 1 | A0 | Input |
| 2 | A1 | Input |
| 3 | A2 | Input |
| 4 | GND | Power in |
| 5 | SDA | Input/output |
| 6 | SCL | Input |
| 7 | WP | Input |
| 8 | VCC | Power in |
Open-source boards using it
All 84- 2 layers90.2 × 48.3 mm

- 2 layers100 × 67 mm

- 2 layers160 × 100 mm

CodyComputer
fjmilens3/cody-computer
Design files and source code for the Cody Computer.
59 parts64GPL-3.0 - 4 layers100 × 49.8 mm

- 2 layers81.3 × 96.5 mm

- 4 layers63.6 × 67.5 mm

PropellerPCB
tomkinsc/open-spectrometer
Code, mechanical designs, and electronic plans related to the OpenSpectrometer project.
76 parts30 - 2 layers108.4 × 70 mm

User Expansion
Ashet-Technologies/Home-Computer
A retro-inspired home-computer project.
858 parts20CERN-OHL-P-2.0 - 2 layers136.8 × 87 mm

Show this part on your page
<iframe src="https://pcbkit.io/embed/parts/microchip/24LC256-I/P" title="24LC256-I/P in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/microchip/24LC256-I/P.jpg" alt="24LC256-I/P" width="1200" height="900">[](https://pcbkit.io/parts/microchip/24LC256-I/P)Questions
Is there a KiCad symbol and footprint for the 24LC256-I/P?
Yes. The symbol is Memory_EEPROM:24LC256 and the footprint Package_DIP:DIP-8_W8.89mm_SMDSocket_LongPads, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the 24LC256-I/P?
PDIP-8, with 8 pins. Its footprint is drawn on this page.
Where is the 24LC256-I/P datasheet?
Microchip Technology publishes it: the Datasheet link on this page opens it.
Where can I order the 24LC256-I/P?
JLCPCB lists it as part C411624, with 47 in stock; the sellers' links on this page open their listings.
What can replace the 24LC256-I/P?
Parts like it in the library: the AT24C32N by HGSEMI, the 24LC64-I/P by Microchip Technology, the FT24C64A-EDR-B by FMD and the 24LC1025-I/P by Microchip Technology. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the 24LC256-I/P?
84 boards in 62 repositories on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
8AT24C32N
DIP-8-40℃~+85℃ 1,000,000 cycles 1.8V~5.5V 100 Years 10ms 32Kbit 400kHz Hardware write protection function、Noise suppression function、Page write protection function I2C DIP-8 EEPROM ROHSHGSEMIEEPROM24LC64-I/P
DIP-8-40℃~+85℃ 1,000,000 cycles 2.5V~5.5V 200 Years 400kHz 5ms 64Kbit Hardware write protection function、Noise suppression function I2C DIP-8 EEPROM ROHSMicrochip TechnologyEEPROMFT24C64A-EDR-B
DIP-8Hardware write protection function、Noise suppression function DIP-8 EEPROM ROHSFMDEEPROM24LC1025-I/P
PDIP-8-40℃~+85℃ 1,000,000 cycles 2.5V~5.5V 200 Years 400kHz 5ms Hardware write protection function、Noise suppression function I2C PDIP-8 EEPROM ROHSMicrochip TechnologyEEPROM24LC128-I/P
PDIP-8-40℃~+85℃ 1,000,000 cycles 128Kbit 2.5V~5.5V 200 Years 400kHz 5ms Hardware write protection function、Noise suppression function I2C PDIP-8 EEPROM ROHSMicrochip TechnologyEEPROM24AA04-I/P
PDIP-8-40℃~+85℃ 1,000,000 cycles 1.7V~5.5V 200 Years 400kHz 4Kbit 5ms I2C PDIP-8 EEPROM ROHSMicrochip TechnologyEEPROM24AA1026-I/P
PDIP-8-40℃~+85℃ 1,000,000 cycles 1.7V~5.5V 1Mbit 200 Years 400kHz 5ms Hardware write protection function、Noise suppression function I2C PDIP-8 EEPROM ROHSMicrochip TechnologyEEPROM24AA128-I/P
PDIP-8-40℃~+85℃ 1,000,000 cycles 1.7V~5.5V 128Kbit 200 Years 400kHz 5ms Hardware write protection function、Noise suppression function I2C PDIP-8 EEPROM ROHSMicrochip TechnologyEEPROM