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93C66Q Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
93C66QST175Yes

93C66Q** is a serial Electrically Erasable Programmable Read-Only Memory (EEPROM) manufactured by **STMicroelectronics (ST)**.

The 93C66Q is a serial Electrically Erasable Programmable Read-Only Memory (EEPROM) manufactured by STMicroelectronics (ST). Below are its key specifications, descriptions, and features:

Specifications:

  • Memory Size: 4Kbit (512 x 8 or 256 x 16)
  • Interface: Microwire (3-wire serial interface)
  • Supply Voltage: 2.5V to 5.5V
  • Operating Temperature Range: -40°C to +85°C (Industrial)
  • Write Time: 5ms (typical)
  • Endurance: 1,000,000 write cycles (minimum)
  • Data Retention: 40 years (minimum)
  • Package Options: SO8, TSSOP8, DFN8

Descriptions:

  • The 93C66Q is a non-volatile memory device that allows data to be electrically erased and reprogrammed.
  • It supports both 8-bit and 16-bit organization modes.
  • Features a sequential read operation for faster data access.
  • Compatible with Microwire protocol for serial communication.

Features:

  • Low Power Consumption:
  • Active current: 3mA (max)
  • Standby current: 25µA (max)
  • Built-in Write Protection:
  • Software-controlled write enable/disable
  • Hardware write protection via ORG pin (selects 8-bit or 16-bit mode)
  • Self-Timed Programming Cycle:
  • No external timing components required
  • High Reliability:
  • ESD protection (>4kV)
  • Noise immunity

The 93C66Q is commonly used in automotive, industrial, and consumer electronics for storing configuration data, calibration settings, and small datasets.

Would you like additional details on pinout or timing characteristics?

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