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BR9040F Datasheet 1/ 2/ and 4k bit EEPROMs for direct connection to serial ports

Manufacturer: ROHM

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Datasheet Details

Part number BR9040F
Manufacturer ROHM
File Size 187.19 KB
Description 1/ 2/ and 4k bit EEPROMs for direct connection to serial ports
Datasheet download datasheet BR9040F Datasheet

General Description

Pin name CS SK DI DO GND WC R /B VCC Chip select input Serial data clock input Operating code, address, and serial data input Serial data output Reference voltage for all I / O, 0V Write control input READY, BUSY status signal output Power supply connection Function Overview • The BR90 series are serial EEPROMs that can be connected directly to a serial port and can be erased and written electrically.

Writing and reading is performed in word units, using four types of operation commands.

Communication occurs through CS, SK, DI, and DO pins, WC pin control is used to initiate a write disabled state, enabling these EEPROMs to be used as one-time ROMs.

Overview

Memory ICs 1, 2, and 4k bit EEPROMs for direct connection to serial ports BR9010 / BR9010F / BR9010FV / BR9020 / BR9020F / BR9040 /.

Key Features

  • BR9010 / F / FV (1k bit): 64 words × 16 bits BR9020 / F (2k bit): 128 words × 16 bits BR9040 / F (4k bit): 256 words × 16 bits.
  • Single power supply operation.
  • Serial data input and output.
  • Automatic erase-before-write.
  • Low current consumption.
  • 1.5mA (max. ) active current: 3V.
  • 2µA (max. ) standby current: 3V.
  • Noise filter built into SK pin.
  • Compact DIP8, SOP8, SSOP-B8 packages (SSOPB8 is available only with BR9010).

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