ROHM BU9833GUL-W Serial EEPROM Technical Note

The BU9833GUL-W is a serial EEPROM of I2C BUS interface method. It supports 1.7V single power source action and actions available at 400kHz.


ROHM BU9833GUL-W Serial EEPROM Technical Note - cover page
Brand
ROHM
Category
Other Electronics
Document type
Datasheet
Language
English
Pages
19
File format
PDF
File size
414 KB
Published
01 June, 2012
Updated
01 October, 2023
MD5 checksum
A6A98254D7E292AF94BFABBEC2EDCFAA

About this manual

The BU9833GUL‑W is a 2‑Kbit (256 × 8) serial EEPROM that uses a standard I²C‑compatible bus. It operates from a single 1.7 V to 5.5 V supply and supports up to 400 kHz clock rates. Features include page‑write mode, auto‑erase, low standby current, and a write‑protect function.

The document provides electrical characteristics, timing diagrams, pin assignments, command descriptions, and ordering information. It also contains a notice on usage restrictions and safety considerations.

What's inside

  • Description
  • Features
  • Electrical Characteristics
  • Timing Characteristics
  • Block Diagram
  • Pin Assignment
  • I²C Communication
  • Command
  • Ordering Information
  • Notice

Specifications

Memory size2 Kbit (256 × 8)
Operating voltage1.7 V – 5.5 V
Standby current0.1 pA (Typ.)
Write current1.2 mA (Typ.)
Read current0.2 mA (Typ.)
Data retention40 years
Endurance (write cycles)1,000,000 cycles
Page‑write sizeUp to 16 bytes

Frequently asked questions

What is the maximum I²C clock frequency supported by the BU9833GUL‑W?

The device supports a maximum SCL frequency of 400 kHz.

How many write cycles can the BU9833GUL‑W endure?

It is rated for up to 1,000,000 write cycles.

What is the standby current of the EEPROM?

The standby current is typically 0.1 pA at 5 V.

How much data can be written in a single page‑write operation?

A page‑write can program up to 16 bytes at once.

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