24LC1025-I/P

24LC1025-I/P is Microchip’s 2‑wire (I2C) serial EEPROM in the 24XX1025 family. It provides non-volatile storage for small data upfront in microcontroller systems.
Key points:
- Interface: I2C (SCL, SDA); supports standard and fast I2C modes.
- Memory: serial EEPROM (density varies by variant in the 24LC1025 family); stores data persistently on power-down.
- Addressing: uses a device address (A0–A2) on the bus to allow multiple devices, plus a memory address pointer to access data.
- Operations: random reads and writes; supports write cycles with polling to confirm completion.
- Durability: typical endurance around 1,000,000 write cycles; data retention on the order of decades.
- Electrical: operates from a low-voltage supply (typical range 2.5–5.5V).
- Packaging: -I/P suffix denotes Industrial temperature range and Plastic packaging.
Common uses: small non-volatile data storage for microcontrollers, calibration data, configuration settings, and logs. For exact capacity, page size, and timing, refer to the current datasheet.

24LC1025-I/P is a 1K×8 I2C serial EEPROM. Equivalent devices from other vendors include:
- AT24C1025 (Atmel/Microchip)
- 24AA1025 (Microchip)
- X24C1025 (Xicor, now Renesas)
- CAT24C1025 (ON Semiconductor)
All are 2‑wire I2C EEPROMs with the same memory size and addressing.

Key features of 24LC1025-I/P (Industrial, Plastic package, 8-pin):
- 1 Mbit I2C EEPROM (128K × 8)
- I2C two-wire serial interface; standard and fast-mode up to 400 kHz
- 16-bit memory addressing (word address pointer)
- Page write up to 128 bytes; random and sequential reads
- Write cycle time ~5 ms
- Endurance: up to ~1,000,000 write cycles
- Data retention: ≈100 years (at room temp)
- Supply voltage: 2.7–5.5 V
- Industrial temperature range: -40°C to +85°C
- Packaging: Plastic 8-pin (I/P denotes Industrial grade, Plastic package)

- Pin count: 8 pins (DIP-8/SOIC-8)
- Function: I2C (two‑wire) serial EEPROM with 128 kB (1 Mbit) of nonvolatile memory. The -I/P suffix indicates Industrial temperature range in a Plastic DIP package.

- Manufacturer: Microchip Technology Inc.
- What kind of company: An American multinational semiconductor company that designs, manufactures, and markets microcontrollers, memory devices (including 24LC EEPROMs), and other integrated circuits.

24LC1025-I/P is a 1K×8 I2C serial EEPROM (industrial temperature, plastic package). Typical application areas:
- Microcontroller parameter/configuration storage
- Calibration constants and lookup tables
- Non-volatile data logging (counters, usage data)
- Device IDs, serial numbers, licensing strings
- Small boot/config data for embedded systems
- Sensor, metering, and motor-control boards in industrial equipment
- Any embedded system needing persistent, low-cost I2C memory in -40°C to 85°C environments

8-pin plastic package (PDIP/SOIC family) with Industrial temperature range.