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BR9080RFV Datasheet

  • BR9080RFV

  • 8k, 16k bit EEPROMs for direct connection to serial ports

  • 11頁

  • ROHM

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Memory ICs
BR9080 / BR9080F / BR9080RFV /
BR9016 / BR9016F / BR9016RFV
8k, 16k bit EEPROMs for direct
connection to serial ports
BR9080 / BR9080F / BR9080RFV /
BR9016 / BR9016F / BR9016RFV
The BR9080 and BR9016 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 though 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.
Applications
Movie, camera, cordless telephones, car stereos, VCRs, TVs, DIP switches, and other battery-powered equipment
requiring low voltage and low current
Features
1) BR9080 / F / RFV (8k bit): 512 words
脳16
bits
BR9016 / F / RFV (16k bit): 1024 words
脳
16bits
2) Single power supply operation
3) Serial data input and output
4) Automatic erase-before-write
5) Low current consumption
Active (5V) : 5mA (max.)
Standby (5V) : 3碌A(chǔ) (max.)
6) Noise filter built into SK pin
7) Write protection when V
CC
is low
8) Compact DIP8 / SOP8 / SSOP-B8 packages
9) High reliability CMOS process
10) 100,000 ERASE / WRITE cycles
11) 10 years Data Retention
Block diagram
INSTRUCTION DECODE
R/B
CS
CONTROL
CLOCK GENERATION
DETECT
SUPPLY
VOLTAGE
WRITE
DISABLE
HIGH
VOLTAGE
GENERATOR
SK
WC
DI
INSTRACTION
REGISTER
ADD
BUFFER
9bit
ADD
DECORDER
9bit
8,192 bit
EEPROM
DO
DATA
REGISTER
16bit
R/W
AMPS
16bit

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