CAT93C46B 1-Kb Microwire Serial EEPROM Datasheet

This datasheet details the CAT93C46B, a 1-Kb serial EEPROM with selectable x8 or x16 organization, high-speed operation up to 4 MHz, and industrial…


CAT93C46B 1-Kb Microwire Serial EEPROM Datasheet - cover page
Brand
ON Semiconductor
Category
Memory
Document type
Datasheet
Language
English
Pages
14
File format
PDF
File size
158 KB
Published
16 October, 2026
Updated
16 October, 2026
MD5 checksum
BC68FFDBED2DC335F9EB8E21DE430D0E

About this manual

The CAT93C46B is a 1-Kb Microwire Serial EEPROM memory device that can be configured as either 64 registers of 16 bits or 128 registers of 8 bits. It features high-speed operation up to 4 MHz and operates with a wide voltage supply range from 1.65 V to 5.5 V.

What's inside

  • Features
  • Pin Configurations
  • Ordering Information
  • Absolute Maximum Ratings
  • Reliability Characteristics
  • DC Operating Characteristics
  • AC Characteristics
  • Device Operation

Specifications

Memory Size1-Kb
Supply Voltage Range1.8 V to 5.5 V
Maximum Clock Frequency4 MHz
Program/Erase Cycles1,000,000
Data Retention100 Years
Operating Temperature Range (Industrial)-40°C to +85°C

Frequently asked questions

How is the memory organization selected?

The organization is selected by connecting the ORG pin: V CC selects x16 (64 registers of 16 bits), and GND selects x8 (128 registers of 8 bits).

Does the device require external high voltage for writes?

No, the CAT93C46B generates the required high voltage internally on a single power supply.

What indicates that a write operation is complete?

A high state on the DO pin indicates the device is ready for the next instruction, while low indicates it is busy.

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