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BR9020 Datasheet

  • BR9020

  • 1, 2, and 4k bit EEPROMs for direct connection to serial por...

  • 187.13KB

  • 17頁

  • ROHM

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Memory ICs
1, 2, and 4k bit EEPROMs for direct
connection to serial ports
BR9010 / BR9010F / BR9010FV / BR9020 /
BR9020F / BR9040 / BR9040F
Features
鈥?/div>
鈥R9010 / F / FV (1k bit): 64 words
脳
16 bits
BR9020 / F (2k bit): 128 words
脳
16 bits
BR9040 / F (4k bit): 256 words
脳
16 bits
鈥ingle power supply operation
鈥erial data input and output
鈥utomatic erase-before-write
鈥ow current consumption
鈥?.5mA (max.) active current: 3V
鈥?碌A (max.) standby current: 3V
鈥oise filter built into SK pin
鈥ompact DIP8, SOP8, SSOP-B8 packages (SSOP-
B8 is available only with BR9010).
鈥?00,000 ERASE / WRITE cycles
鈥?0 years Data Retention
鈥asily connects to serial port
鈥?/div>
Pin assignments
CS
SK
DI
DO
1
2
3
4
8
7
6
5
V
CC
R / B
鈭?/div>
1
R / B
鈭?/div>
V
CC
2
WC
GND
CS
SK
3
4
8
WC
GND
DO
DI
BR9010 /
BR9020 / 9040
BR9010F /
BR9010FV /
BR9020F /
BR9040F
7
6
5
鈭?/div>
This pin is N.C. (non connection) on BR9010.
鈥?/div>
Pin description
Pin
name
CS
SK
DI
DO
GND
WC
R /B
V
CC
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
鈥?/div>
Overviewseries are serial EEPROMs that can be connected directly to a serial port and can be erased and written
The BR90
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. During writing, operation is checked via the internal status check.
1

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  • 英文版
    1, 2, and 4k bit EEPROMs for direct connection to serial por...
    ROHM
  • 英文版
    1, 2, and 4k bit EEPROMs for direct connection to serial por...
    ROHM [Rohm...
  • 英文版
    8k, 16k bit EEPROMs for direct connection to serial ports
    ROHM
  • 英文版
    8k, 16k bit EEPROMs for direct connection to serial ports
    ROHM [Rohm...
  • 英文版
    1, 2, and 4k bit EEPROMs for direct connection to serial por...
    ROHM
  • 英文版
    1, 2, and 4k bit EEPROMs for direct connection to serial por...
    ROHM [Rohm...
  • 英文版
    1, 2, and 4k bit EEPROMs for direct connection to serial por...
    ROHM
  • 英文版
    1, 2, and 4k bit EEPROMs for direct connection to serial por...
    ROHM [Rohm...
  • 英文版
    8k, 16k bit EEPROMs for direct connection to serial ports
    ROHM
  • 英文版
    8k, 16k bit EEPROMs for direct connection to serial ports
    ROHM [Rohm...
  • 英文版
    1, 2, and 4k bit EEPROMs for direct connection to serial por...
    ROHM
  • 英文版
    1, 2, and 4k bit EEPROMs for direct connection to serial por...
    ROHM [Rohm...
  • 英文版
    8k, 16k bit EEPROMs for direct connection to serial ports
    ROHM
  • 英文版
    8k, 16k bit EEPROMs for direct connection to serial ports
    ROHM [Rohm...
  • 英文版
    1, 2, and 4k bit EEPROMs for direct connection to serial por...
    ROHM
  • 英文版
    1, 2, and 4k bit EEPROMs for direct connection to serial por...
    ROHM [Rohm...
  • 英文版
    1, 2, and 4k bit EEPROMs for direct connection to serial por...
    ROHM
  • 英文版
    1, 2, and 4k bit EEPROMs for direct connection to serial por...
    ROHM [Rohm...
  • 英文版
    8k, 16k bit EEPROMs for direct connection to serial ports
    ROHM
  • 英文版
    8k, 16k bit EEPROMs for direct connection to serial ports
    ROHM [Rohm...

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