仕様
| 属性 | 値 |
| Package | Tube |
| ProductStatus | Active |
| MemoryType | Non-Volatile |
| MemoryFormat | EEPROM |
| Technology | EEPROM |
| MemorySize | 128Kb (16K x 8) |
| MemoryInterface | I²C |
| ClockFrequency | 1 MHz |
| WriteCycleTime-WordPage | 5ms |
| AccessTime | 400 ns |
| Voltage-Supply | 1.7V ~ 5.5V |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| MountingType | Surface Mount |
| Package/Case | 8-TSSOP (0.173, 4.40mm Width) |
概要
Description
Here is a concise intro to the 24FC128-I/ST:
- What it is: STMicroelectronics’ 128‑Kbit I2C serial EEPROM (16 Kbytes) with non-volatile memory.
- Interface: Two‑wire I2C (SCL, SDA); supports standard (100 kHz) and fast (400 kHz) modes.
- Addressing: Uses a 2‑byte word address; A0/A1/A2 pins select the device blocks; WP pin provides write protection.
- Power and range: Vcc 1.8–5.5 V; typical operating temp −40 to +85 °C (industrial).
- Memory organization: 16,384 × 8 bits.
- Write: Page writes up to 32 bytes; write cycle time tWC up to ~5 ms.
- Endurance/retention: ~1,000,000 write cycles; data retention ~40 years.
- Packages: 8‑pin SO‑8 (and variants); pinout includes A0, A1, A2, GND, SDA, SCL, WP, Vcc.
- Applications: configuration data, calibration tables, lookup data for MCUs, data logging support.
- Access methods: random read, current address read, and sequential reads; write via start, control byte, two‑byte address, data, stop (with ACK polling).
- What it is: STMicroelectronics’ 128‑Kbit I2C serial EEPROM (16 Kbytes) with non-volatile memory.
- Interface: Two‑wire I2C (SCL, SDA); supports standard (100 kHz) and fast (400 kHz) modes.
- Addressing: Uses a 2‑byte word address; A0/A1/A2 pins select the device blocks; WP pin provides write protection.
- Power and range: Vcc 1.8–5.5 V; typical operating temp −40 to +85 °C (industrial).
- Memory organization: 16,384 × 8 bits.
- Write: Page writes up to 32 bytes; write cycle time tWC up to ~5 ms.
- Endurance/retention: ~1,000,000 write cycles; data retention ~40 years.
- Packages: 8‑pin SO‑8 (and variants); pinout includes A0, A1, A2, GND, SDA, SCL, WP, Vcc.
- Applications: configuration data, calibration tables, lookup data for MCUs, data logging support.
- Access methods: random read, current address read, and sequential reads; write via start, control byte, two‑byte address, data, stop (with ACK polling).
Equivalent
Equivalent parts for 24FC128-I/ST (128K I2C EEPROM):
- M24C128-W (ST)
- AT24C128A (Atmel/Microchip)
- 24LC128 / 24AA128 (Microchip)
- CAT24C128 (ON Semiconductor)
- FM24C128 (Fujitsu)
Note: Pinout and timing are standard 2‑wire EEPROM behavior; verify package and temperature range before design.
- M24C128-W (ST)
- AT24C128A (Atmel/Microchip)
- 24LC128 / 24AA128 (Microchip)
- CAT24C128 (ON Semiconductor)
- FM24C128 (Fujitsu)
Note: Pinout and timing are standard 2‑wire EEPROM behavior; verify package and temperature range before design.
Features
- 128 Kbit I2C serial EEPROM (16 Kbytes total)
- Interface: I2C two-wire (standard-mode up to 100 kHz, fast-mode up to 400 kHz)
- Memory organization: 16 K × 8
- Page write: typically 16 bytes per page; supports random and sequential reads
- Endurance: ~1,000,000 write cycles; Data retention about 40 years
- Addressing: A0–A2 hardware pins (up to 8 devices on the same I2C bus)
- Write protection: WP pin for hardware write protection
- Supply voltage: 1.8–5.5 V
- Temperature range: Industrial (-40°C to +85°C)
- Package: 8-pin (SO8/US8 variants)
Note: "I/ST" indicates industrial temperature grade for this device variant.
- Interface: I2C two-wire (standard-mode up to 100 kHz, fast-mode up to 400 kHz)
- Memory organization: 16 K × 8
- Page write: typically 16 bytes per page; supports random and sequential reads
- Endurance: ~1,000,000 write cycles; Data retention about 40 years
- Addressing: A0–A2 hardware pins (up to 8 devices on the same I2C bus)
- Write protection: WP pin for hardware write protection
- Supply voltage: 1.8–5.5 V
- Temperature range: Industrial (-40°C to +85°C)
- Package: 8-pin (SO8/US8 variants)
Note: "I/ST" indicates industrial temperature grade for this device variant.
Pinout
- Pin count: 8 pins.
- Function: ST24FC128-I/ST is a 128-kbit I2C serial EEPROM (16K × 8) with I2C interface. Pins: 1 A0, 2 A1, 3 A2 (device address inputs), 4 GND, 5 SDA, 6 SCL, 7 WP (write protect), 8 VCC. Supports page write, read/write operations, and uses A0–A2 to set device address and WP to protect memory.
- Function: ST24FC128-I/ST is a 128-kbit I2C serial EEPROM (16K × 8) with I2C interface. Pins: 1 A0, 2 A1, 3 A2 (device address inputs), 4 GND, 5 SDA, 6 SCL, 7 WP (write protect), 8 VCC. Supports page write, read/write operations, and uses A0–A2 to set device address and WP to protect memory.
Manufacturer
- Manufacturer: STMicroelectronics (ST).
- What kind of company: A multinational semiconductor company (global integrated circuits manufacturer) headquartered in Geneva, Switzerland, producing memory devices, microcontrollers, sensors, power ICs, and related products.
- What kind of company: A multinational semiconductor company (global integrated circuits manufacturer) headquartered in Geneva, Switzerland, producing memory devices, microcontrollers, sensors, power ICs, and related products.
Application
Applications of 24FC128-I/ST (128-Kbit I2C EEPROM, industrial temperature range):
- Non-volatile memory for microcontroller configurations, calibration data, device IDs
- Data logging and event storage in industrial and consumer electronics
- I2C memory expansion for embedded systems (look‑up tables, parameters)
- Automotive/industrial equipment requiring reliable memory (industrial temp range)
- Metering, sensors, IoT devices, and smart devices for storing settings and logs
- Firmware/settings backup and recovery in embedded systems
- Non-volatile memory for microcontroller configurations, calibration data, device IDs
- Data logging and event storage in industrial and consumer electronics
- I2C memory expansion for embedded systems (look‑up tables, parameters)
- Automotive/industrial equipment requiring reliable memory (industrial temp range)
- Metering, sensors, IoT devices, and smart devices for storing settings and logs
- Firmware/settings backup and recovery in embedded systems
Package
Typically an 8-pin package: SO-8 (plastic small-outline). ST also provides DIP-8 and TSSOP-8 variants for the 24FC128-I/ST.
