93C46 SMD IC 3 Wire Serial EEPROM 1KBits (128 x 8)

93C46 SMD IC 3 Wire Serial EEPROM 1KBits (128 x 8).

The 93C46 is a 1 Kbit (128 × 8 or 64 × 16 organization) serial Electrically Erasable Programmable Read-Only Memory (EEPROM). It uses a 3-wire serial interface (CS, SK, DI/DO), making it simple and efficient for low-pin-count applications.

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• Organization: 128 bytes × 8 bits (or 64 words × 16 bits, selectable)
• Interface: 3-wire serial (Chip Select, Serial Clock, Data In/Data Out)
• Operating Voltage: Typically 2.5 V to 5.5 V (varies with manufacturer version)
• Endurance: ~1 million write/erase cycles per bit
• Data Retention: >100 years
• Access Time: Fast read/write cycle times (typically microseconds)
• Package: Commonly available in SOIC-8, and TSSOP-8

The device stores non-volatile data (retains contents even when power is removed), making it useful for small configuration and calibration storage.

Applications

• Configuration storage: Save device setup parameters (e.g., router MAC address, display settings).
• Calibration data: Store sensor calibration or trim values in embedded systems.
• Identification: Keep product ID codes, serial numbers, or security keys.
• Consumer electronics: Used in TVs, radios, and remote controls for channel or setting memory.
• Industrial controllers: Store system status, machine parameters, or small logs.
• PC and peripherals: Retain BIOS/firmware parameters or device IDs.
• Communication equipment: Store frequency tables, network addresses, or configuration flags.

93C46 IC Datasheet